Disclosure of Invention
In order to overcome the technical problems mentioned in the background of the application, embodiments of the present application provide a display panel, including:
A substrate;
The isolation structure is positioned on one side of the substrate and is enclosed to form a plurality of isolation openings;
a plurality of light emitting units, at least part of which are positioned in the corresponding isolation openings;
The packaging units are positioned at one side of the corresponding light-emitting units, which is far away from the substrate, and each packaging unit comprises an edge wrapping part positioned at one side of the isolation structure, which is far away from the substrate, and a gap is formed between one side of the edge wrapping part, which is close to the substrate, and one side of the isolation structure, which is far away from the substrate;
and the barrier layer is positioned on one side, far away from the substrate, of the isolation structure, at least part of the gap is filled with the barrier layer, and the orthographic projection of the barrier layer on the substrate is positioned in the orthographic projection of one side, far away from the substrate, of the isolation structure on the substrate.
In some possible embodiments, the isolation structure includes a first isolation portion and a second isolation portion that are stacked in order along a direction away from the substrate, and an orthographic projection of a side of the first isolation portion away from the substrate on the substrate is located within an orthographic projection of the second isolation portion on the substrate;
Preferably, the orthographic projection of the barrier layer on the substrate is located within the orthographic projection of the second isolation portion on the substrate;
preferably, the orthographic projection of the barrier layer on the substrate is located outside the orthographic projection of the isolation opening on the substrate;
preferably, the material of the barrier layer comprises an organic material.
In some possible embodiments, a distance between an edge of the barrier layer orthographic projection on the substrate and an edge of the second spacer orthographic projection on the substrate is greater than or equal to 1 μm;
Preferably, a distance from a side of the barrier layer away from the substrate to the substrate is greater than a distance from a side of the edge covering portion away from the substrate to the substrate;
preferably, at least part of the edging extends into the barrier layer;
Preferably, the thickness of the barrier layer is greater than or equal to 2 μm and less than or equal to 4 μm in the thickness direction of the substrate.
In some possible embodiments, the isolation opening includes a first isolation opening and a second isolation opening, the light emitting unit includes a first light emitting unit and a second light emitting unit, at least part of the first light emitting unit is located in the first isolation opening, at least part of the second light emitting unit is located in the second isolation opening, the packaging unit includes a first packaging unit and a second packaging unit, the first packaging unit is located on a side of the first light emitting unit away from the substrate, and the second packaging unit is located on a side of the second light emitting unit away from the substrate;
preferably, the blocking layer includes a first blocking portion, the first blocking portion being located between the first light emitting unit and the second light emitting unit, the first blocking portion filling a partial void corresponding to the edge covering portion of the first encapsulation unit and filling a partial void corresponding to the edge covering portion of the second encapsulation unit;
Preferably, a distance between an edge of the orthographic projection of the first blocking portion on the substrate and an edge of the orthographic projection of a side of the isolation structure between the first light emitting unit and the second light emitting unit, which is far away from the substrate, is greater than or equal to 1 μm;
preferably, the first blocking part comprises a first blocking sub-part and a second blocking sub-part which are connected with each other, the first blocking sub-part fills a part of a gap corresponding to the edge wrapping part of the first packaging unit, and the second blocking sub-part fills a part of a gap corresponding to the edge wrapping part of the second packaging unit;
Preferably, a distance from a side of the second blocking sub-portion away from the substrate to the substrate is greater than a distance from a side of the first blocking sub-portion away from the substrate to the substrate.
In some possible embodiments, the isolation opening further includes a third isolation opening, the light emitting unit further includes a third light emitting unit, at least a portion of the third light emitting unit is located within the third isolation opening, and the packaging unit further includes a third packaging unit located on a side of the third light emitting unit away from the substrate;
Preferably, the blocking layer further includes a second blocking portion, the second blocking portion being located between the second light emitting unit and the third light emitting unit, the second blocking portion filling a partial void corresponding to the edge covering portion of the second packaging unit and filling a partial void corresponding to the edge covering portion of the third packaging unit;
Preferably, a distance between an edge of the orthographic projection of the second blocking portion on the substrate and an edge of the orthographic projection of a side of the isolation structure between the second light emitting unit and the third light emitting unit, which is far away from the substrate, is greater than or equal to 1 μm;
preferably, a distance from a side of the first blocking portion away from the substrate to the substrate is equal to a distance from a side of the second blocking portion away from the substrate to the substrate;
preferably, the first blocking portion is connected with the second blocking portion;
preferably, the second blocking part includes a third blocking sub-part and a fourth blocking sub-part connected with each other, the third blocking sub-part fills a partial gap corresponding to the edge covering part of the second packaging unit, and the fourth blocking sub-part fills a partial gap corresponding to the edge covering part of the third packaging unit;
Preferably, a distance from a side of the fourth barrier sub-portion away from the substrate to the substrate is greater than a distance from a side of the third barrier sub-portion away from the substrate to the substrate;
preferably, a distance from a side of the third barrier sub-portion away from the substrate to the substrate is equal to a distance from a side of the second barrier sub-portion away from the substrate to the substrate;
Preferably, the third barrier sub-portion is connected to the second barrier sub-portion;
preferably, the first, second and third light emitting units emit light of different colors.
In some possible embodiments, the blocking layer further includes a third blocking portion between the first light emitting unit and the third light emitting unit, the third blocking portion filling a partial void corresponding to the edge-covering portion of the first encapsulation unit and filling a partial void corresponding to the edge-covering portion of the third encapsulation unit;
Preferably, a distance between an edge of the orthographic projection of the third blocking portion on the substrate and an edge of the orthographic projection of a side of the isolation structure between the first light emitting unit and the third light emitting unit, which is far away from the substrate, on the substrate is greater than or equal to 1 μm;
Preferably, a distance from a side of the second blocking portion away from the substrate to the substrate is equal to a distance from a side of the third blocking portion away from the substrate to the substrate;
preferably, the second blocking portion is connected with the third blocking portion;
preferably, the first blocking portion is connected with the third blocking portion;
Preferably, the third blocking part includes a fifth blocking sub-part and a sixth blocking sub-part that are connected to each other, the fifth blocking sub-part fills a partial gap corresponding to the edge covering part of the third packaging unit, and the sixth blocking sub-part fills a partial gap corresponding to the edge covering part of the first packaging unit;
preferably, a distance from a side of the fifth blocking sub-part away from the substrate to the substrate is greater than a distance from a side of the sixth blocking sub-part away from the substrate to the substrate;
preferably, a distance from a side of the fifth barrier sub-portion away from the substrate to the substrate is equal to a distance from a side of the fourth barrier sub-portion away from the substrate to the substrate;
Preferably, a distance from a side of the sixth barrier sub-portion away from the substrate to the substrate is equal to a distance from a side of the first barrier sub-portion away from the substrate to the substrate;
preferably, the fifth barrier sub-portion is connected to the fourth barrier sub-portion;
preferably, the sixth barrier subunit is connected to the first barrier subunit;
preferably, the orthographic projection of the barrier layer on the substrate is in a grid shape.
In some possible implementations, the display panel further includes a pixel defining layer between the substrate and the isolation structure, the pixel defining layer defining a plurality of pixel openings, the pixel openings in communication with the isolation openings;
preferably, the barrier layer is located outside a region where an extension line of a sidewall of the pixel opening is formed.
In some possible embodiments, the display panel further includes a second encapsulation layer located at a side of the encapsulation unit away from the substrate, and a third encapsulation layer located at a side of the second encapsulation layer away from the substrate;
Preferably, the materials of the encapsulation unit and the third encapsulation layer each comprise an inorganic material;
preferably, the material of the second encapsulation layer includes an organic material.
In some possible embodiments, the light emitting unit includes a first electrode, a light emitting function portion, and a second electrode sequentially stacked in a thickness direction of the substrate, the isolation structure includes a conductive material, and the second electrode is electrically connected to the first isolation portion;
Preferably, the isolation structure further comprises a third isolation part positioned at one side of the first isolation part facing the substrate, and the second electrode is electrically connected with the third isolation part;
preferably, the material of the third isolation part comprises molybdenum or titanium, and/or the material of the first isolation part comprises aluminum, silver or copper.
In some possible embodiments, the present application also provides a display panel including:
A substrate;
The isolation structure is positioned on one side of the substrate and is enclosed to form a plurality of isolation openings;
The light emitting units are at least partially positioned in the corresponding isolation openings and comprise a first light emitting unit and a second light emitting unit;
The barrier layer is positioned on one side of the isolation structure away from the substrate, the orthographic projection of the barrier layer on the substrate is positioned in the orthographic projection of one side of the isolation structure away from the substrate on the substrate, the distance between the edge of the orthographic projection of the barrier layer on the substrate and the edge of the orthographic projection of one side of the isolation structure away from the substrate on the substrate, which encloses the first light-emitting unit, is a first dimension, and the distance between the edge of the orthographic projection of the barrier layer on the substrate and the edge of the orthographic projection of one side of the isolation structure away from the substrate, which encloses the second light-emitting unit, is a second dimension, and the first dimension is the same as the second dimension.
In some possible embodiments, the display panel further includes a third light emitting unit, a distance between an edge of the front projection of the barrier layer on the substrate and an edge of the front projection of the isolation structure surrounding the third light emitting unit on the substrate away from the substrate is a third dimension, the third dimension being the same as the second dimension;
preferably, the display panel further includes:
The packaging units are positioned on one side, away from the substrate, of the corresponding light-emitting units, the packaging units comprise edge wrapping parts positioned on one side, away from the substrate, of the isolation structure, gaps are formed between one side, close to the substrate, of the edge wrapping parts and one side, away from the substrate, of the isolation structure, and the barrier layer fills at least part of the gaps;
preferably, the first dimension is greater than or equal to 1 μm.
In some possible embodiments, the present application further provides a method for preparing a display panel, the method comprising:
Providing a substrate;
An isolation structure with an isolation opening is formed on one side of the substrate, a light emitting unit is formed in the isolation opening, a packaging unit is formed on one side, far away from the substrate, of the light emitting unit, a blocking layer is formed on one side, far away from the substrate, of the isolation structure, the packaging unit comprises an edge-wrapping portion located on one side, far away from the substrate, of the isolation structure, a gap is formed between one side, close to the substrate, of the edge-wrapping portion and one side, far away from the substrate, of the isolation structure, the blocking layer is located on one side, far away from the substrate, of the isolation structure, at least part of the gap is filled in the blocking layer, and the orthographic projection of the blocking layer on the substrate is located on one side, far away from the substrate, of the isolation structure is located in the orthographic projection on the substrate.
In some possible embodiments, the step of forming an isolation structure having an isolation opening on one side of the substrate, forming a light emitting unit in the isolation opening, forming a packaging unit on a side of the light emitting unit away from the substrate, and forming a barrier layer on a side of the isolation structure away from the substrate, includes:
Sequentially forming a pixel defining material layer and an isolation material layer on one side of the substrate;
Patterning the isolation material layer and the pixel defining material layer in sequence to form an isolation material layer with a first isolation opening and a pixel defining material layer with a first pixel opening, respectively, wherein the first pixel opening is communicated with the first isolation opening;
Forming a first light emitting unit in the first isolation opening and forming a first packaging unit positioned on one side of the first light emitting unit away from the substrate;
Forming a first blocking sub-portion on one side, away from the substrate, of the isolation material layer close to the first light emitting unit, wherein the first blocking sub-portion fills a part of the gap corresponding to the edge wrapping portion of the first packaging unit;
Preferably, a distance between an edge of the orthographic projection of the first blocking sub-portion on the substrate and an edge of the orthographic projection of a side of the first isolation opening, which is far away from the substrate, on the substrate is greater than or equal to 1 μm.
In some possible embodiments, after the step of forming the first barrier layer on the side of the isolation material layer close to the first light emitting unit remote from the substrate, the method further includes:
Patterning the isolation material layer and the pixel defining material layer in sequence to form an isolation material layer with a second isolation opening and a pixel defining material layer with a second pixel opening, respectively, wherein the second pixel opening is communicated with the second isolation opening;
Forming a second light emitting unit in the second isolation opening, and forming a second packaging unit positioned on one side of the second light emitting unit away from the substrate;
forming a second blocking sub-portion on one side of the isolation material layer, which is close to the second light emitting unit, away from the substrate, wherein the second blocking sub-portion fills a part of the gap corresponding to the edge wrapping portion of the second packaging unit, and the second blocking sub-portion is connected with the first blocking sub-portion between the first light emitting unit and the second light emitting unit;
Preferably, a distance between an edge of the orthographic projection of the second barrier portion on the substrate and an edge of the orthographic projection of a side of the second isolation opening, which is far away from the substrate, on the substrate is greater than or equal to 1 μm.
In some possible embodiments, after the step of forming a second barrier layer on a side of the isolation material layer near the second light emitting unit away from the substrate, the method further includes:
Patterning the isolation material layer and the pixel defining material layer in sequence to form an isolation structure with a third isolation opening and a pixel defining layer with a third pixel opening, respectively, wherein the third pixel opening is communicated with the third isolation opening;
forming a third light emitting unit in the third isolation opening, and forming a third packaging unit positioned on one side of the third light emitting unit away from the substrate;
Forming a third blocking sub-portion on one side of the isolation material layer close to the third light emitting unit, which is far away from the substrate, wherein the third blocking sub-portion fills a part of the gap corresponding to the edge wrapping portion of the third packaging unit, is connected with the second blocking sub-portion between the second light emitting unit and the third light emitting unit, and is also connected with the first blocking sub-portion between the first light emitting unit and the third light emitting unit;
preferably, a distance between an edge of the orthographic projection of the third barrier portion on the substrate and an edge of the orthographic projection of a side of the third isolation opening, which is far away from the substrate, on the substrate is greater than or equal to 1 μm.
In some possible embodiments, the application further provides an electronic device, where the electronic device includes the display panel described in the application, or includes a display panel prepared by the method for preparing a display panel described in the application.
Compared with the prior art, the application has the following beneficial effects:
according to the display panel and the electronic equipment, the barrier layer filling at least part of the gaps is arranged on the side, far away from the substrate, of the isolation structure, so that etching liquid of the rear light-emitting unit is not easy to damage the front light-emitting unit, and the barrier layer is not easy to influence the brightness of the light-emitting area of the light-emitting unit, and therefore the display effect of the display panel can be improved.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
It should be noted that, in the case of no conflict, different features in the embodiments of the present application may be combined with each other.
Increasing the density of light emitting units (i.e., pixel density) in a display panel is an important approach to improve the display effect, however, the current display panel manufactured by adopting the fine metal vapor deposition mask (FINE METAL MASK, FMM) technology is limited by the technology and cannot further increase the density of light emitting units. In order to solve the technical problem that the density of the light-emitting units cannot be further improved, isolation structures are arranged in some display panels, when the whole layer of the evaporation light-emitting functional layer and the second electrode are evaporated, the light-emitting functional layer and the second electrode can be disconnected at the isolation structures, and the light-emitting units with different colors can be formed in different isolation openings through multiple evaporation and multiple etching processes (namely, patterning of the light-emitting units).
The display panel in the related art comprises a substrate, an isolation structure positioned at one side of the substrate, a light-emitting unit positioned in an isolation opening formed by the isolation structure, and a packaging unit positioned at one side of the light-emitting unit far away from the substrate, wherein the packaging unit extends from one side of the isolation structure towards the isolation opening to one side of the isolation structure far away from the substrate, and the packaging unit can play a role in packaging the light-emitting unit.
However, a gap is formed between the packaging unit and the isolation structure, which are positioned on one side of the isolation structure far away from the substrate, and in the process of forming the rear-end light-emitting unit, related liquid medicine easily enters the front-end light-emitting unit through the gap corresponding to the front-end light-emitting unit, and finally the front-end light-emitting unit is damaged, so that the display panel forms a dark spot, and finally the display effect of the display panel is affected.
In order to solve the above-mentioned technical problems, a detailed description will be given below of specific embodiments of the present application with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present embodiment provides a display panel including a substrate 1, an isolation structure 3, a plurality of light emitting units 8, a plurality of packaging units 9, and a barrier layer 4.
The substrate 1 may include a substrate and a plurality of driving units located at one side of the substrate, each of which may include one or more semiconductor switching devices. The semiconductor switching device may be formed by a plurality of film layers in the substrate 1 in cooperation, for example, the semiconductor switching device may be a thin film transistor formed by a plurality of film layers in cooperation.
The isolation structure 3 is positioned on one side of the substrate 1, the isolation structure 3 is surrounded to form a plurality of isolation openings 11, and at least part of the light emitting units 8 are positioned in the corresponding isolation openings 11.
The packaging unit 9 is located at a side of the corresponding light emitting unit 8 away from the substrate 1, the packaging unit 9 includes a wrapping portion 901 located at a side of the isolation structure 3 away from the substrate 1, and a gap 10 is formed between a side of the wrapping portion 901 close to the substrate 1 and a side of the isolation structure 3 away from the substrate 1.
The barrier layer 4 is located on the side of the isolation structure 3 remote from the substrate 1, the barrier layer 4 fills at least part of the gap 10, and the orthographic projection of the barrier layer 4 on the substrate 1 is located in the orthographic projection of the isolation structure 3 remote from the substrate 1 on the substrate 1.
After patterning the light emitting unit 8 and the packaging unit 9, the edge wrapping portion 901 of the packaging unit 9 and the side, away from the substrate 1, of the isolation structure 3 naturally form a gap 10, in this embodiment, at least part of the gap 10 is filled by the barrier layer 4, in the process of forming the rear light emitting unit 8, etching liquid and the like of the patterned rear light emitting unit 8 (the light emitting unit formed later is the rear light emitting unit) are not easy to enter the corresponding front light emitting unit 8 (the light emitting unit formed earlier is the front light emitting unit) through the gap 10, so that the front light emitting unit 8 is not easy to be damaged, the light emitting unit 8 is not easy to form a dark spot, and finally the display effect of the display panel can be improved.
In addition, in the embodiment, the front projection of the barrier layer 4 on the substrate 1 is located in the front projection of the side, away from the substrate 1, of the isolation structure 3 on the substrate 1, that is, the barrier layer 4 does not extend to the side, away from the substrate 1, of the light emitting unit 8, so that the brightness of the light emitting area of the light emitting unit 8 is not easily affected by the barrier layer 4, and thus the display panel is not easily caused to have uneven display, and the display effect of the display panel can be further improved.
Based on the above design, in this embodiment, the barrier layer 4 filling at least part of the gap 10 is disposed on the side of the isolation structure 3 away from the substrate 1, so that the etching solution of the rear light-emitting unit 8 is not easy to damage the front light-emitting unit 8, and the barrier layer 4 is not easy to affect the brightness of the light-emitting area of the light-emitting unit 8, thereby improving the display effect of the display panel.
In some possible embodiments, referring again to fig. 2, the display panel further includes a pixel defining layer 2 disposed between the substrate 1 and the isolation structure 3, the pixel defining layer 2 defines a plurality of pixel openings 201, the pixel openings 201 are in communication with the isolation openings 11, the light emitting unit 8 includes a first electrode 5, a light emitting function portion 6 and a second electrode 7 sequentially stacked along a thickness direction Z of the substrate 1, and a portion of the first electrode 5 is exposed by the pixel openings 201.
The provision of the isolation structures 3 allows the display panel to form a film of different color light emitting units 8 in different isolation openings 11 without the need for a fine reticle. When the light-emitting material layer is formed, the light-emitting material layer is separated by the isolation structure 3 to form a plurality of light-emitting functional parts 6 arranged at intervals, and when the second electrode material layer is formed, the second electrode material layer is separated by the isolation structure 3 to form a plurality of second electrodes 7 arranged at intervals, the isolation structure 3 comprises a conductive material, the second electrodes 7 are electrically connected with the isolation structure 3, and one first electrode 5, one light-emitting functional part 6 and one second electrode 7 form one light-emitting unit 8. The first electrode 5 may be an anode, and the second electrode 7 may be a cathode.
In this way, the different light emitting units 8 can be mutually independent, so that crosstalk between adjacent light emitting units 8 can be improved, and the display effect of the display panel can be improved. Meanwhile, due to the existence of the isolation structure 3, the light-emitting material layer and the second electrode material layer in the light-emitting units 8 of each color in the display panel can be prepared and then patterned on the whole surface, so that a fine mask can be omitted, and the preparation cost of the display panel can be saved.
In some possible embodiments, referring to fig. 3, the isolation structure 3 includes a first isolation portion 31 and a second isolation portion 32 stacked in sequence along a direction away from the substrate 1, an orthographic projection of a side of the first isolation portion 31 away from the substrate 1 on the substrate 1 is located in an orthographic projection of the second isolation portion 32 on the substrate 1, the isolation structure 3 includes a conductive material, and the second electrode 7 is electrically connected to the first isolation portion 31.
Since the second isolation portion 32 is located on a side of the first isolation portion 31 away from the substrate 1 and is parallel to the plane of the substrate 1, the lateral width of the second isolation portion 32 is greater than that of the first isolation portion 31, and therefore the second isolation portion 32 breaks the light emitting material layer and the second electrode material layer at the isolation structure 3. In this way, the isolation structure 3 formed by the first isolation portion 31 and the second isolation portion 32 can make it easier to package each light emitting unit 8 independently, so that the packaging yield of the display panel can be improved.
Preferably, the orthographic projection of the barrier layer 4 on the substrate 1 is located within the orthographic projection of the second barrier portion 32 on the substrate 1.
Optionally, the front projection of the barrier layer 4 onto the substrate 1 is located outside the front projection of the barrier opening 11 onto the substrate 1.
Optionally, the material of the barrier layer 4 comprises an organic material.
Therefore, the barrier layer 4 is not easy to influence the normal display of the light-emitting units 8, so that the corresponding light-emitting units 8 are not easy to generate color deviation, and the display effect of the display panel can be further improved.
In some possible embodiments, referring again to fig. 3, the distance D between the edge of the front projection of the barrier layer 4 on the substrate 1 and the edge of the front projection of the second spacer 32 on the substrate 1 is greater than or equal to 1 μm. For example, the distance D may be 1 μm, 1.2 μm, 1.5 μm, 1.8 or 2 μm, and the distance D is reasonably set, so that the blocking layer 4 can effectively block the corresponding gap 10, and the blocking layer 4 is less likely to influence the light emitting effect of the light emitting unit 8.
Preferably, the distance H1 from the side of the barrier layer 4 away from the substrate 1 to the substrate 1 is greater than the distance H2 from the side of the edge covering portion 901 away from the substrate 1 to the substrate 1.
Optionally, at least part of the edging 901 extends into the barrier layer 4.
Thus, the barrier layer 4 covers part of the edge portion 901, so that the contact area between the barrier layer 4 and the edge portion 901 is larger, the barrier layer 4 can be more stably arranged on one side, away from the substrate 1, of the isolation structure 3, and the corresponding gap 10 can be more effectively plugged by the barrier layer 4.
Preferably, the thickness H3 of the barrier layer 4 is greater than or equal to 2 μm and less than or equal to 4 μm along the thickness direction Z of the substrate 1. For example, the thickness H3 may be 2 μm, 2.2 μm, 2.5 μm, 3 μm, 3.5 μm, 3.8 μm, 4 μm, or the like, and the thickness H3 may be appropriately set, so that the barrier layer 4 can more effectively seal the corresponding void 10 without excessively increasing the thickness of the display panel.
In some possible embodiments, referring to fig. 4 and 5, the isolation opening 11 includes a first isolation opening 111 and a second isolation opening 112, the light emitting unit 8 includes a first light emitting unit and a second light emitting unit, at least part of the first light emitting unit is located in the first isolation opening 111, at least part of the second light emitting unit is located in the second isolation opening 112, the package unit 9 includes a first package unit 91 and a second package unit 92, the first package unit 91 is located on a side of the first light emitting unit away from the substrate 1, and the second package unit 92 is located on a side of the second light emitting unit away from the substrate 1.
Preferably, the barrier layer 4 includes a first barrier 41, the first barrier 41 being located between the first light emitting unit and the second light emitting unit, the first barrier 41 filling a partial void 10 corresponding to the hemming portion 901 of the first encapsulation unit 91 and filling a partial void 10 corresponding to the hemming portion 901 of the second encapsulation unit 92.
The first blocking portion 41 can simultaneously block the partial gap 10 corresponding to the edge covering portion 901 of the first packaging unit 91 and the partial gap 10 corresponding to the edge covering portion 901 of the second packaging unit 92, so that the blocking effect of the first blocking portion 41 on the gap 10 between the edge covering portion 901 and the isolation structure 3 can be improved.
Preferably, a distance D1 between an edge of the orthographic projection of the first blocking portion 41 on the substrate 1 and an edge of the orthographic projection of the side of the isolation structure 3, which is remote from the substrate 1, on the substrate 1 between the first light emitting unit and the second light emitting unit is greater than or equal to 1 μm. For example, the distance D1 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance D1 may be reasonably set, so that the first blocking portion 41 may effectively block the corresponding gap 10, and the light emitting effect of the light emitting unit 8 may not be easily affected by the first blocking portion 41.
In some possible embodiments, referring to fig. 4-6 a, the isolation opening 11 further comprises a third isolation opening 113, the light emitting unit 8 further comprises a third light emitting unit, at least part of the third light emitting unit is located in the third isolation opening 113, the packaging unit 9 further comprises a third packaging unit 93, and the third packaging unit 93 is located at a side of the third light emitting unit remote from the substrate 1.
Optionally, the barrier layer 4 further includes a second barrier portion 42, where the second barrier portion 42 is located between the second light emitting unit and the third light emitting unit, and the second barrier portion 42 fills a portion of the space 10 corresponding to the edge covering portion 901 of the second package unit 92 and fills a portion of the space 10 corresponding to the edge covering portion 901 of the third package unit 93.
The light emitting colors of the first light emitting unit, the second light emitting unit and the third light emitting unit are different, for example, the light emitting color of the first light emitting unit may be blue, the light emitting color of the second light emitting unit may be green, the light emitting color of the third light emitting unit may be red, and the second blocking portion 42 may simultaneously block a portion of the gap 10 corresponding to the edge covering portion 901 of the second packaging unit 92 and a portion of the gap 10 corresponding to the edge covering portion 901 of the third packaging unit 93, so that the blocking effect of the second blocking portion 42 on the gap 10 between the edge covering portion 901 and the isolation structure 3 may be improved.
Preferably, a distance D2 between an edge of the orthographic projection of the second blocking portion 42 on the substrate 1 and an edge of the orthographic projection of the side of the isolation structure 3, which is remote from the substrate 1, on the substrate 1 between the second light emitting unit and the third light emitting unit is greater than or equal to 1 μm. For example, the distance D2 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance D2 may be reasonably set, so that the second blocking portion 42 may effectively block the corresponding gap 10, and the light emitting effect of the light emitting unit 8 may not be easily affected by the second blocking portion 42.
In some possible embodiments, referring again to fig. 4-6 a, the barrier layer 4 further includes a third barrier portion 43, the third barrier portion 43 is located between the first light emitting unit and the third light emitting unit, and the third barrier portion 43 fills a portion of the space 10 corresponding to the edge-covering portion 901 of the first package unit 91 and fills a portion of the space 10 corresponding to the edge-covering portion 901 of the third package unit 93.
The third blocking portion 43 can simultaneously block the partial gap 10 corresponding to the edge covering portion 901 of the first packaging unit 91 and the partial gap 10 corresponding to the edge covering portion 901 of the third packaging unit 93, so that the blocking effect of the third blocking portion 43 on the gap 10 between the edge covering portion 901 and the isolation structure 3 can be improved.
Preferably, a distance D3 between an edge of the orthographic projection of the third blocking portion 43 on the substrate 1 and an edge of the orthographic projection of the side of the isolation structure 3, which is remote from the substrate 1, on the substrate 1 between the first light emitting unit and the third light emitting unit is greater than or equal to 1 μm. For example, the distance D3 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance D3 may be reasonably set, so that the third blocking portion 43 may effectively block the corresponding gap 10, and the light emitting effect of the light emitting unit 8 may not be easily affected by the third blocking portion 43.
Preferably, the first blocking portion 41 is connected to the second blocking portion 42, the second blocking portion 42 is connected to the third blocking portion 43, and the first blocking portion 41 is connected to the third blocking portion 43.
Optionally, the front projection of the barrier layer 4 on the substrate 1 is grid-shaped.
In this way, the first blocking portion 41, the second blocking portion 42 and the third blocking portion 43 are integrally connected and form the blocking layer 4, so that the stability of the blocking layer 4 can be improved, and the blocking effect of the blocking layer 4 on the corresponding gap 10 can be improved.
Preferably, referring to fig. 6a and 6b, the first blocking portion 41 includes a first blocking sub-portion 16 and a second blocking sub-portion 17 connected to each other, the first blocking sub-portion 16 fills a portion of the gap 10 corresponding to the edge-covering portion of the first encapsulation unit 91, and the second blocking sub-portion 17 fills a portion of the gap 10 corresponding to the edge-covering portion of the second encapsulation unit 92.
Optionally, the second blocking portion 42 includes a third blocking sub-portion 18 and a fourth blocking sub-portion 19 that are connected to each other, the third blocking sub-portion 18 fills a portion of the void 10 corresponding to the edge-covering portion of the second packaging unit 92, and the fourth blocking sub-portion 19 fills a portion of the void 10 corresponding to the edge-covering portion of the third packaging unit 93.
Alternatively, the third blocking portion 43 includes a fifth blocking sub-portion 20 and a sixth blocking sub-portion 21 connected to each other, the fifth blocking sub-portion 20 filling a partial void 10 corresponding to the edge-covering portion of the third encapsulation unit 93, and the sixth blocking sub-portion 21 filling a partial void 10 corresponding to the edge-covering portion of the first encapsulation unit 91.
Alternatively, the distance from the side of the second barrier sub-portion 17 remote from the substrate 1 to the substrate 1 is greater than the distance from the side of the first barrier sub-portion 16 remote from the substrate 1 to the substrate 1.
Optionally, the distance from the side of the fourth barrier sub-portion 19 remote from the substrate 1 to the substrate 1 is greater than the distance from the side of the third barrier sub-portion 18 remote from the substrate 1 to the substrate 1.
Optionally, the distance from the side of the third barrier sub-portion 18 remote from the substrate 1 to the substrate 1 is equal to the distance from the side of the second barrier sub-portion 17 remote from the substrate 1 to the substrate 1.
Optionally, a distance from a side of the fifth barrier sub-portion 20 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the sixth barrier sub-portion 21 away from the substrate 1 to the substrate 1.
Optionally, the distance from the side of the fifth barrier sub-portion 20 remote from the substrate 1 to the substrate 1 is equal to the distance from the side of the fourth barrier sub-portion 19 remote from the substrate 1 to the substrate 1.
Alternatively, the distance from the side of the sixth barrier sub-portion 21 remote from the substrate 1 to the substrate 1 is equal to the distance from the side of the first barrier sub-portion 16 remote from the substrate 1 to the substrate 1.
Optionally, a third blocking sub-portion 18 is connected to the second blocking sub-portion 17.
Optionally, the fifth barrier sub-portion 20 is connected to the fourth barrier sub-portion 19.
Optionally, a sixth barrier subunit 21 is connected to the first barrier subunit 16.
In this embodiment, the first blocking sub-portion 16 and the sixth blocking sub-portion 21 are formed by the same process and surround the periphery of the first light emitting unit, so that the distance from the side of the sixth blocking sub-portion 21 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the first blocking sub-portion 16 away from the substrate 1 to the substrate 1, the sixth blocking sub-portion 21 is connected with the first blocking sub-portion 16, the second blocking sub-portion 17 and the third blocking sub-portion 18 are formed by the same process and surround the periphery of the second light emitting unit, so that the distance from the side of the second blocking sub-portion 17 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the third blocking sub-portion 18 away from the substrate 1 to the substrate 1, the second blocking sub-portion 17 is connected with the third blocking sub-portion 18, and the fourth blocking sub-portion 19 and the fifth blocking sub-portion 20 are formed by the same process and surround the periphery of the third light emitting unit, so that the distance from the side of the fourth blocking sub-portion 19 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the fifth blocking sub-portion 20 away from the substrate 1 to the substrate 1, and the fourth blocking sub-portion 19 is connected with the fifth blocking sub-portion 20. The second barrier sub-portion 17 is at least partially stacked with the first barrier sub-portion 16 when the process is prepared, i.e. the second barrier sub-portion 17 at least partially overlaps with the orthographic projection of the first barrier sub-portion 16 onto the substrate 1. The third blocking sub-portion 18 at least partially overlaps with the orthographic projection of the fourth blocking sub-portion 19 on the substrate 1, and the fifth blocking sub-portion 20 at least partially overlaps with the orthographic projection of the sixth blocking sub-portion 21 on the substrate 1.
In general, the second barrier sub-portion 17 is formed after the first barrier sub-portion 16, and thus, a distance from a side of the second barrier sub-portion 17 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the first barrier sub-portion 16 away from the substrate 1 to the substrate 1, the fourth barrier sub-portion 19 is formed after the third barrier sub-portion 18, and thus, a distance from a side of the fourth barrier sub-portion 19 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the third barrier sub-portion 18 away from the substrate 1 to the substrate 1, and the sixth barrier sub-portion 21 is formed after the first barrier sub-portion 16, and thus, a distance from a side of the sixth barrier sub-portion 21 away from the substrate 1 to the substrate 1 is greater than a distance from a side of the first barrier sub-portion 16 away from the substrate 1 to the substrate 1.
In some possible embodiments, referring to fig. 2 and 7, the barrier layer 4 is located outside the region where the extension line of the sidewall of the pixel opening 201 is formed. In this way, the light emitted from the light emitting unit 8 is not easily blocked by the blocking layer 4, so that the light emitting effect of the light emitting unit 8 can be further improved.
In some possible embodiments, referring to fig. 8, the display panel further includes a second encapsulation layer 12 located on a side of the encapsulation unit 9 away from the substrate 1, and a third encapsulation layer 13 located on a side of the second encapsulation layer 12 away from the substrate 1.
Alternatively, the materials of the encapsulation unit 9 and the third encapsulation layer 13 each include an inorganic material, and the material of the second encapsulation layer 12 includes an organic material.
For example, the encapsulation unit 9 and the third encapsulation layer 13 may be formed by chemical vapor deposition (Chemical Vapor Deposition, CVD), and the second encapsulation layer 12 may be formed by inkjet Printing (IJP). The second encapsulation layer 12 and the third encapsulation layer 13 can have a better encapsulation effect on the light emitting unit 8, so that the encapsulation quality of the display panel can be further improved.
Preferably, the distance from the side of the first blocking portion 41 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the second blocking portion 42 away from the substrate 1 to the substrate 1, and the distance from the side of the second blocking portion 42 away from the substrate 1 to the substrate 1 is equal to the distance from the side of the third blocking portion 43 away from the substrate 1 to the substrate 1. In this way, the sides of the first blocking portion 41, the second blocking portion 42, and the third blocking portion 43 away from the substrate 1 are located at the same level, so that the flatness of the second encapsulation layer 12 can be improved.
In some possible embodiments, referring again to fig. 8, the isolation structure 3 further includes a third isolation portion 33 located on a side of the first isolation portion 31 facing the substrate 1, and the second electrode 7 is electrically connected to the third isolation portion 33.
The third isolation portion 33 includes a conductive material, and the second electrode 7 corresponding to the light emitting unit 8 extends to contact with a sidewall of the third isolation portion 33 to electrically connect the second electrode 7 corresponding to the light emitting unit 8 with the third isolation portion 33.
Specifically, the material of the third isolation portion 33 includes molybdenum or titanium, and/or the material of the first isolation portion 31 includes aluminum, silver or copper, and/or the material of the second isolation portion 32 includes titanium or molybdenum. In this way, when the isolation structure 3 breaks the second electrode material layer into the second electrode 7, the second electrode 7 is more easily electrically connected to the third isolation portion 33.
The orthographic projection of the light emitting function portion 6 on the substrate 1 is located outside the orthographic projection of the third isolation portion 33 on the substrate 1. In this way, the light emitting functional part 6 is not overlapped with the isolation structure 3, so that the crosstalk problem between the light emitting units 8 can be effectively improved.
In some possible embodiments, referring again to fig. 5 and 6a, the present application also provides a display panel comprising a substrate 1, an isolation structure 3, a plurality of light emitting units 8, and a barrier layer 4.
The isolation structure 3 is positioned on one side of the substrate 1, the isolation structure 3 is surrounded to form a plurality of isolation openings 11, and at least part of the light emitting units 8 are positioned in the corresponding isolation openings 11.
At least part of the light emitting unit 8 is located in the corresponding isolation opening 11, and the light emitting unit 8 includes a first light emitting unit and a second light emitting unit.
The barrier layer 4 is located at one side of the isolation structure 3 away from the substrate 1, the orthographic projection of the barrier layer 4 on the substrate 1 is located in the orthographic projection of one side of the isolation structure 3 away from the substrate 1 on the substrate 1, the distance between the edge of the orthographic projection of the barrier layer 4 on the substrate 1 and the orthographic projection edge of one side of the isolation structure 3 enclosing the first light emitting unit away from the substrate 1 on the substrate 1 is a first dimension D1, the distance between the edge of the orthographic projection of the barrier layer 4 on the substrate 1 and the edge of the orthographic projection of one side of the isolation structure 3 enclosing the second light emitting unit away from the substrate 1 is a second dimension D2, and the first dimension D1 is the same as the second dimension D2.
In this embodiment, the front projection of the barrier layer 4 on the substrate 1 is located in the front projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, i.e. the barrier layer 4 does not extend to the side of the first light emitting unit and the second light emitting unit away from the substrate 1, so that the brightness of the light emitting areas of the first light emitting unit and the second light emitting unit is not easily affected by the barrier layer 4, and thus the display panel is not easily caused to have a problem of uneven display.
Optionally, the display panel further includes a third light emitting unit, and a distance between an edge of the front projection of the barrier layer 4 on the substrate 1 and an edge of the front projection of the side of the isolation structure 3, which is far from the substrate 1 and encloses the third light emitting unit, on the substrate 1 is a third dimension D3, where the third dimension D3 is the same as the second dimension D2.
The blocking layer 4 does not extend to a side of the third light emitting unit away from the substrate 1, and thus the blocking layer 4 does not easily affect the brightness of the light emitting region of the third light emitting unit, thereby not easily causing a problem of uneven display of the display panel.
The remaining technical solutions of the display panel in this embodiment are the same as those of the display panel in the foregoing embodiment, and will not be described herein again.
In some possible embodiments, referring to fig. 9, the present application further provides a method for manufacturing a display panel, which includes:
S10, providing a substrate 1.
S11, forming an isolation structure 3 with an isolation opening 11 on one side of the substrate 1, forming a light emitting unit 8 in the isolation opening 11 and a packaging unit 9 on one side of the light emitting unit 8 away from the substrate 1, and forming a blocking layer 4 on one side of the isolation structure 3 away from the substrate 1, wherein the packaging unit 9 comprises a wrapping portion 901 positioned on one side of the isolation structure 3 away from the substrate 1, a gap 10 is formed between one side of the wrapping portion 901 close to the substrate 1 and one side of the isolation structure 3 away from the substrate 1, the blocking layer 4 is positioned on one side of the isolation structure 3 away from the substrate 1, the blocking layer 4 fills at least part of the gap 10, and the orthographic projection of the blocking layer 4 on the substrate 1 is positioned in the orthographic projection of the isolation structure 3 on one side away from the substrate 1 on the substrate 1.
In the display panel formed by the method, the barrier layer 4 capable of filling at least part of the gap 10 is formed on the side, away from the substrate 1, of the isolation structure 3, and etching liquid and the like for patterning the rear light-emitting unit 8 are not easy to enter the corresponding front light-emitting unit 8 through the gap 10 in the process of forming the rear light-emitting unit 8, so that the front light-emitting unit 8 is not easy to damage, dark spots are not easy to form on the light-emitting unit 8, and finally the display effect of the display panel can be improved.
In addition, the front projection of the barrier layer 4 on the substrate 1 in the embodiment is located in the front projection of the side of the isolation structure 3 away from the substrate 1 on the substrate 1, that is, the barrier layer 4 does not extend to the side of the light emitting unit 8 away from the substrate 1, so that the brightness of the light emitting area of the light emitting unit 8 is not easily affected by the barrier layer 4, and the display panel is not easily caused to display uneven.
In some possible embodiments, the steps of forming the isolation structure 3 having the isolation opening 11 at one side of the substrate 1, forming the light emitting unit 8 in the isolation opening 11 and the encapsulation unit 9 at the side of the light emitting unit 8 away from the substrate 1, and forming the barrier layer 4 at the side of the isolation structure 3 away from the substrate 1, include:
referring to fig. 10, a pixel defining material layer 14 and an isolation material layer 15 are sequentially formed on one side of a substrate 1.
Referring to fig. 11, the isolation material layer 15 and the pixel defining material layer 14 are sequentially patterned to form the isolation material layer 15 having the first isolation opening 111 and the pixel defining material layer 14 having the first pixel opening 211, respectively, the first pixel opening 211 being in communication with the first isolation opening 111.
Referring to fig. 12, a first light emitting unit is formed in the first isolation opening 111 and a first package unit 91 is formed at a side of the first light emitting unit away from the substrate 1.
The light emitting material layer, the second electrode material layer and the packaging material layer of the first light emitting unit may be sequentially formed in the first isolation opening 111, and then the light emitting material layer, the second electrode material layer and the packaging material layer of the first light emitting unit may be patterned after the light emitting material layer, the second electrode material layer and the packaging material layer of the first light emitting unit are protected by the etching protection layer, so that the first light emitting unit and the first packaging unit 91 may be formed.
Referring to fig. 13-14, a first blocking sub-portion 401 is formed on a side of the isolation material layer 15 close to the first light emitting unit away from the substrate 1, and the first blocking sub-portion 401 fills a portion of the void 10 corresponding to the edge covering portion 901 of the first package unit 91.
A barrier material layer may be formed on a side of the isolation material layer 15 away from the substrate 1, and then patterned to finally form the first barrier sub-portion 401, where the first barrier sub-portion 401 may fill a portion of the gap 10 corresponding to the edge covering portion 901 of the first package unit 91.
Preferably, a distance L1 between an edge of the orthographic projection of the first barrier portion 401 on the substrate 1 and an edge of the orthographic projection of the side of the first isolation opening 111 away from the substrate 1 on the substrate 1 is greater than or equal to 1 μm. For example, the distance L1 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance L1 may be reasonably set, so that the first blocking sub-portion 401 may effectively block the corresponding gap 10, and the light emitting effect of the first light emitting unit may not be easily affected by the first blocking sub-portion 401.
Referring to fig. 15, the isolation material layer 15 and the pixel defining material layer 14 are sequentially patterned to form the isolation material layer 15 having the second isolation openings 112 and the pixel defining material layer 14 having the second pixel openings 212, respectively, the second pixel openings 212 being in communication with the second isolation openings 112.
Referring to fig. 16, a second light emitting unit is formed in the second isolation opening 112 and a second package unit 92 is formed at a side of the second light emitting unit away from the substrate 1.
The light emitting material layer, the second electrode material layer and the packaging material layer of the second light emitting unit may be sequentially formed in the second isolation opening 112, and then the light emitting material layer, the second electrode material layer and the packaging material layer of the second light emitting unit may be patterned after the light emitting material layer, the second electrode material layer and the packaging material layer of the second light emitting unit are protected by the etching protection layer, so as to form the second light emitting unit and the second packaging unit 92.
After the first light emitting unit is formed, a first blocking sub-portion 401 filling a portion of the gap 10 corresponding to the edge covering portion 901 of the first packaging unit 91 is formed on a side of the isolation material layer 15 away from the substrate 1, and the first blocking sub-portion 401 can block the gap 10 corresponding to the first packaging unit 91, so that when the light emitting material and the packaging material of the second light emitting unit are patterned, the corresponding etching liquid is not easy to invade the first light emitting unit through the gap 10 corresponding to the first packaging unit 91, and thus the first light emitting unit is not easy to be damaged.
Referring to fig. 17 to 18, a second blocking sub-portion 402 is formed on a side of the isolation material layer 15 close to the second light emitting unit away from the substrate 1, the second blocking sub-portion 402 fills a portion of the gap 10 corresponding to the edge covering portion 901 of the second packaging unit 92, and the second blocking sub-portion 402 is connected to the first blocking sub-portion 401 between the first light emitting unit and the second light emitting unit.
A barrier material layer may be formed on a side of the isolation material layer 15 away from the substrate 1, and then patterned to finally form the second barrier sub-portion 402, where the second barrier sub-portion 402 may fill a portion of the void 10 corresponding to the edge covering portion 901 of the second package unit 92.
Preferably, a distance L2 between an edge of the orthographic projection of the second barrier portion 402 on the substrate 1 and an edge of the orthographic projection of the side of the second isolation opening 112, which is away from the substrate 1, on the substrate 1 is greater than or equal to 1 μm. For example, the distance L2 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance L2 may be reasonably set, so that the second blocking sub-portion 402 may effectively block the corresponding gap 10, and the light emitting effect of the second light emitting unit may not be easily affected by the second blocking sub-portion 402.
Referring to fig. 19, the isolation material layer 15 and the pixel defining material layer 14 are sequentially patterned to form an isolation structure 3 having a third isolation opening 113 and a pixel defining layer 2 having a third pixel opening 213, respectively, the third pixel opening 213 being in communication with the third isolation opening 113.
Referring to fig. 20, a third light emitting unit is formed in the third isolation opening 113 and a third encapsulation unit 93 is formed at a side of the third light emitting unit away from the substrate 1.
The light emitting material layer, the second electrode material layer and the packaging material layer of the third light emitting unit may be sequentially formed in the third isolation opening 113, and then the light emitting material layer, the second electrode material layer and the packaging material layer of the third light emitting unit may be patterned after the light emitting material layer, the second electrode material layer and the packaging material layer of the third light emitting unit are protected by the etching protection layer, so as to form the third light emitting unit and the third packaging unit 93.
After the first light emitting unit is formed, the first blocking sub-portion 401 filling the partial gap 10 corresponding to the first packaging unit 91 is formed on the side, away from the substrate 1, of the isolation material layer 15, and after the second light emitting unit is formed, the second blocking sub-portion 402 filling the partial gap 10 corresponding to the second packaging unit 92 is formed on the side, away from the substrate 1, of the isolation material layer 15, the first blocking sub-portion 401 can block the gap 10 corresponding to the first packaging unit 91, the second blocking sub-portion 402 can block the gap 10 corresponding to the second packaging unit 92, therefore, when the light emitting material and packaging material of the third light emitting unit are patterned, the corresponding etching liquid is not easy to invade the first light emitting unit through the gap 10 corresponding to the first packaging unit 91, and is not easy to invade the second light emitting unit through the gap 10 corresponding to the second packaging unit 92, so that the first light emitting unit and the second light emitting unit are not easy to be damaged, further dark spots are not easy to be formed, and finally, the display effect of the display panel can be greatly improved.
Referring to fig. 21 to 22, a third blocking sub-portion 403 is formed on a side of the isolation material layer 15 close to the third light emitting unit away from the substrate 1, the third blocking sub-portion 403 fills a portion of the gap 10 corresponding to the border portion 901 of the third package unit 93, the third blocking sub-portion 403 is connected to the second blocking sub-portion 402 between the second light emitting unit and the third light emitting unit, and the third blocking sub-portion 403 is also connected to the first blocking sub-portion 401 between the first light emitting unit and the third light emitting unit.
A barrier material layer may be formed on a side of the isolation structure 3 away from the substrate 1, and then patterned to finally form a third barrier sub-portion 403, where the third barrier sub-portion 403 may fill a portion of the void 10 corresponding to the edge covering portion 901 of the third package unit 93. In the subsequent manufacturing process of the display panel, the third light emitting unit is not easy to be damaged, and meanwhile, due to the existence of the third blocking sub-portion 403, when the second packaging layer 12 of the display panel is formed, the leveling effect of the second packaging layer 12 is better, so that the performance of the display panel can be improved.
Preferably, a distance L3 between an edge of the orthographic projection of the third barrier portion 403 on the substrate 1 and an edge of the orthographic projection of the side of the third isolation opening 113 away from the substrate 1 on the substrate 1 is greater than or equal to 1 μm. For example, the distance L3 may be 1 μm, 1.2 μm, 1.5 μm, 1.8, or 2 μm, and the distance L3 may be reasonably set, so that the third blocking sub-portion 403 may effectively block the corresponding gap 10, and the light emitting effect of the third light emitting unit may not be easily affected by the third blocking sub-portion 403.
The partial first blocking sub-portion 401 and the partial second blocking sub-portion 402 formed by the above-described method may form the first blocking portion 41 in fig. 5, the partial second blocking sub-portion 402 and the partial third blocking sub-portion 403 may form the second blocking portion 42 in fig. 5, and the partial first blocking sub-portion 401 and the partial third blocking sub-portion 403 may form the third blocking portion 43 in fig. 5. In this way, the barrier layer 4 can be formed more easily by the above-described method.
The first blocking sub-portion 401 formed by the above method includes the first blocking sub-portion 16 and the sixth blocking sub-portion 21 of fig. 6b, the second blocking sub-portion 402 includes the second blocking sub-portion 17 and the third blocking sub-portion 18 of fig. 6b, and the third blocking sub-portion 403 includes the fourth blocking sub-portion 19 and the fifth blocking sub-portion 20 of fig. 6 b.
In some possible embodiments, the application further provides an electronic device, which comprises the display panel disclosed by the application or the display panel prepared by the preparation method of the display panel disclosed by the application. The electronic device may include a device having image processing capabilities, such as a server, personal computer, notebook computer, cell phone, tablet computer, wearable device, in-vehicle display apparatus, and the like. Since the electronic equipment comprises the display panel, the display effect of the electronic equipment is better.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.