CN111029379A - Display panel, preparation method thereof and display device - Google Patents

Abstract

The application discloses display panel and preparation method and display device thereof, and the display panel comprises: a flexible substrate; the anode layer is arranged on the flexible substrate; the patterned pixel definition layer is arranged on the anode layer and comprises a resin filling area and a pixel definition area, wherein the pixel definition area is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and the first sub-pixel distributed at the center of the virtual regular hexagon is shared to form a basic pixel unit; and the thin film packaging layer is arranged on the patterned pixel defining layer. In this way, when the display panel in this application shows the hypotenuse, because of the angle between the adjacent sub pixel is greater than 90, can reduce the effect that the sawtooth felt effectively.

Description

Display panel, preparation method thereof and display device

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display panel, a manufacturing method thereof, and a display device.

Background

Nowadays, since an OLED (organic light emitting diode) device has a flexible display characteristic, the OLED device is considered as a new generation of display technology, and has a wide application prospect in the field of mobile devices, particularly smart phones. The arrangement of the sub-pixels of the OLED screen is an important factor affecting the display effect of the screen. The standard RGB subpixel arrangement is to divide a square into three parts on average, wherein each part displays different colors of red, green and blue, respectively, so that a color pixel unit can be formed, and most LCD screens adopt the subpixel arrangement.

However, when the standard RGB sub-pixel arrangement is adopted, a 90 ° zigzag pattern is formed at the boundary when the oblique side is displayed, and a problem of a noticeable zigzag feeling occurs.

Disclosure of Invention

The technical problem that this application mainly solved aims at making display panel when showing the hypotenuse, reduces the problem of sawtooth sense effectively.

In order to solve the above technical problem, a first technical solution adopted by the present application is to provide a display panel, including: a flexible substrate; the anode layer is arranged on the flexible substrate; the patterned pixel definition layer is arranged on the anode layer and comprises a resin filling area and a pixel definition area, wherein the pixel definition area is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and the first sub-pixel distributed at the center of the virtual regular hexagon is shared to form a basic pixel unit; and the thin film packaging layer is arranged on the patterned pixel defining layer.

The first sub-pixel, the second sub-pixel and the third sub-pixel are all one of circular, oval and polygonal in shape.

The area of the first sub-pixel is smaller than that of the second sub-pixel, and the area of the second sub-pixel is smaller than that of the third sub-pixel.

The distance between each two of the first sub-pixel, the second sub-pixel and the third sub-pixel is 15-25 um.

The first sub-pixel, the second sub-pixel and the third sub-pixel are any one of green, red and blue light emitting colors, and the light emitting colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different.

The first sub-pixel is a green sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a blue sub-pixel.

In order to solve the above technical problem, another technical solution adopted by the present application is to provide a method for manufacturing a display panel, including: forming an anode layer on a flexible substrate; forming a pixel defining layer on the anode layer; patterning the pixel defining layer to form a patterned pixel defining layer, wherein the patterned pixel defining layer includes a resin filling region and a pixel defining region; forming a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon shape in a pixel limiting area respectively, wherein the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and share the first sub-pixel distributed in the center of the virtual regular hexagon to form a basic pixel unit; and forming a thin film encapsulation layer on the patterned pixel definition layer to cover the patterned pixel definition layer.

Wherein the step of patterning the pixel defining layer to form the patterned pixel defining layer comprises: and patterning the pixel defining layer by an exposure and development method to form a patterned pixel defining layer.

The step of forming the first sub-pixel, the second sub-pixel and the third sub-pixel in a virtual regular hexagon arrangement in the pixel limiting area respectively comprises the following steps: and respectively evaporating corresponding organic light-emitting materials in the pixel limiting area to form a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon.

In order to solve the above technical problem, a further technical solution adopted by the present application is to provide a display device including the display panel as described in any one of the above.

The beneficial effect of this application is: unlike the state of the art, the present application provides a display panel including: a flexible substrate; the anode layer is arranged on the flexible substrate; the patterned pixel definition layer is arranged on the anode layer and comprises a resin filling area and a pixel definition area, wherein the pixel definition area is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and the first sub-pixel distributed at the center of the virtual regular hexagon is shared to form a basic pixel unit; and the thin film packaging layer is arranged on the patterned pixel defining layer. In this way, when the display panel in this application shows the hypotenuse, because of the angle between the adjacent sub pixel is greater than 90, can reduce the effect that the sawtooth felt effectively.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a display panel provided in the present application;

fig. 2 is a schematic structural diagram of a second embodiment of a display panel provided in the present application;

fig. 3 is a schematic structural diagram of a third embodiment of a display panel provided in the present application;

fig. 4 is a schematic structural diagram of a fourth embodiment of a display panel provided in the present application;

FIG. 5 is a schematic flow chart of a first embodiment of a method for manufacturing a display panel provided by the present application;

FIG. 6 is a schematic flow chart of a second embodiment of a method for manufacturing a display panel provided by the present application;

FIG. 7 is a schematic flow chart of a third embodiment of a method for manufacturing a display panel provided by the present application;

fig. 8 is a schematic structural diagram of an embodiment of a display device provided in the present application.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present application clearer, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present disclosure. As shown in fig. 1, the display panel includes aflexible substrate 110, ananode layer 120, apixel defining layer 130, and a thinfilm encapsulation layer 140.

In this embodiment, theanode layer 120 is disposed on theflexible substrate 110, and thepixel defining layer 130 is further disposed on theanode layer 120. Thepixel definition layer 130 is patterned, and a patternedpixel definition layer 130 is obtained, so as to divide thepixel definition layer 130 into apixel definition region 1310 and aresin filling region 1320, wherein afirst sub-pixel 1311, asecond sub-pixel 1312 and athird sub-pixel 1313 are arranged in a virtual regular hexagon in thepixel definition region 1310, wherein thesecond sub-pixel 1312 and thethird sub-pixel 1313 are distributed at intervals on six vertices of the virtual regular hexagon, thefirst sub-pixel 1311 is distributed at the center position of the virtual regular hexagon, that is, thesecond sub-pixel 1312 and thethird sub-pixel 1313 are distributed at intervals on six sides of the virtual regular hexagon, and thefirst sub-pixel 1311 is distributed at the center position of the virtual regular hexagon, and thefirst sub-pixel 1311 is shared by thesecond sub-pixel 1313 to form a basic pixel unit. A thinfilm encapsulation layer 140 is further covered on the patternedpixel definition layer 130 to protect thepixel definition layer 130.

In an alternative embodiment, thefirst subpixel 1311, thesecond subpixel 1312 and thethird subpixel 1313 have the same shape, and are all one of circular, elliptical and polygonal, while in other embodiments, thefirst subpixel 1311, thesecond subpixel 1312 and thethird subpixel 1313 may have other simple shapes, and may have different simple shapes.

In an alternative embodiment, the light emitting efficiency of thefirst sub-pixel 1311 is greater than that of thesecond sub-pixel 1312, the light emitting efficiency of thesecond sub-pixel 1312 is greater than that of thethird sub-pixel 1313, and accordingly, the area of thefirst sub-pixel 1311 is smaller than that of thesecond sub-pixel 1312, and the area of thesecond sub-pixel 1312 is further smaller than that of thethird sub-pixel 1313, so as to be capable of being used in combination to improve the overall light emitting lifetime of the corresponding display panel device.

In an alternative embodiment, thefirst sub-pixel 1311, thesecond sub-pixel 1312 and thethird sub-pixel 1313 distributed in thepixel region 1310 have the same distance therebetween, and are all any value between 15-25 um.

Thefirst subpixel 1311, thesecond subpixel 1312 and thethird subpixel 1313 emit green, red and blue light, and thefirst subpixel 1311, thesecond subpixel 1312 and thethird subpixel 1313 emit different colors.

In a specific embodiment, thefirst sub-pixel 1311 is a green sub-pixel, thesecond sub-pixel 1312 is a red sub-pixel, and thethird sub-pixel 1313 is a blue sub-pixel, wherein the red sub-pixel and the blue sub-pixel are spaced apart at six vertices of a corresponding virtual regular hexagon in thepixel defining area 1310, and the green sub-pixel is distributed at a central position of the virtual regular hexagon to constitute a basic pixel unit.

Unlike the state of the art, the present application provides a display panel including: a flexible substrate; the anode layer is arranged on the flexible substrate; the patterned pixel definition layer is arranged on the anode layer and comprises a resin filling area and a pixel definition area, wherein the pixel definition area is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and the first sub-pixel distributed at the center of the virtual regular hexagon is shared to form a basic pixel unit; and the thin film packaging layer is arranged on the patterned pixel defining layer. In this way, when the display panel in this application shows the hypotenuse, because of the angle between the adjacent sub pixel is greater than 90, can reduce the effect that the sawtooth felt effectively.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a display panel according to a second embodiment of the present disclosure. This embodiment is a detailed structural diagram of a specific basic pixel unit formed by thefirst sub-pixel 1311, thesecond sub-pixel 1312, and thethird sub-pixel 1313 in thepixel defining area 1310 of the patternedpixel defining layer 130 in the first embodiment of the display panel of the present application in fig. 1.

In this embodiment, thesecond sub-pixel 1312 and thethird sub-pixel 1313 are distributed at intervals on six sides of a virtual regular hexagon formed by thefirst sub-pixel 1311, thesecond sub-pixel 1312 and thethird sub-pixel 1313, and thefirst sub-pixel 1311 is distributed at the center position of the virtual regular hexagon, wherein thesecond sub-pixel 1312 and thethird sub-pixel 1313 share thefirst sub-pixel 1311 to form a basic pixel unit.

A partial structure diagram of thepixel defining area 1310 formed by the basic pixel unit in thepixel defining layer 130 is shown in fig. 3, it can be understood that in thepixel defining area 1310, each of thesecond sub-pixels 1312 and thethird sub-pixels 1313 shares afirst sub-pixel 1311 and presents a virtual regular hexagon to form a basic pixel unit, and the basic pixel units are further distributed in an interlaced manner to finally form thewhole pixel area 1310.

Further, when the display panel integrated with thepixel defining layer 130 displays a diagonal edge, the distribution of the light emitting sub-pixels in thepixel region 1310 is as shown in fig. 4, and as can be seen from fig. 4, at the edge of the diagonal edge, an included angle a between the pixels of each adjacent pixel, that is, the pixel including afirst sub-pixel 1311, asecond sub-pixel 1312, and athird sub-pixel 1313, is greater than 90 °, so that the display effect finally presented by the display panel is not obvious jaggy at the edge of the diagonal edge, thereby affecting the user experience.

Based on the general inventive concept, the present application further provides a method for manufacturing a display panel, please refer to fig. 5, and fig. 5 is a schematic flow diagram of a first embodiment of the method for manufacturing a display panel provided by the present application. The implementation mode comprises the following steps:

s510: an anode layer is formed on a flexible substrate.

In this embodiment, an anode layer is first prepared and formed on a flexible substrate, wherein the flexible substrate further includes a flexible substrate, a driving circuit film layer, a planarization layer, and the like, and is not expanded here.

S520: a pixel defining layer is formed on the anode layer.

In this embodiment mode, after an anode layer is formed over a flexible substrate, a pixel defining layer is further formed over the anode layer.

S530: and patterning the pixel defining layer to form a patterned pixel defining layer, wherein the patterned pixel defining layer includes a resin filling region and a pixel defining region.

In this embodiment, the pixel layer defining layer formed on the anode layer is patterned to form a patterned pixel defining layer, and thus a resin filling region and a pixel defining region are obtained in the patterned pixel defining layer, wherein each sub-pixel unit can be sequentially formed in the pixel defining region.

S540: and respectively forming a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon in the pixel limiting area, wherein the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and share the first sub-pixel distributed in the center of the virtual regular hexagon to form a basic pixel unit.

In this embodiment, after the pixel defining layer is patterned and the patterned pixel defining layer including the resin filling region and the pixel defining region is formed, the first sub-pixel, the second sub-pixel and the third sub-pixel are sequentially formed in the pixel defining region in a virtual regular hexagon, wherein the second sub-pixel and the third sub-pixel are distributed at six vertices of the virtual regular hexagon at intervals, and share the first sub-pixel distributed at the center of the virtual regular hexagon to form a basic pixel unit, and the basic pixel units are further distributed in a staggered manner to finally form the patterned pixel defining layer.

S550: and forming a thin film encapsulation layer on the patterned pixel definition layer to cover the patterned pixel definition layer.

In this embodiment, the finally formed patterned pixel definition layer is film-encapsulated to form a film encapsulation layer covering the patterned pixel definition layer.

Referring to fig. 6, fig. 6 is a schematic flow chart of a second embodiment of a method for manufacturing a display panel according to the present application. It can be understood that the method for manufacturing a display panel according to this embodiment is a schematic flow chart of a detailed embodiment of the method for manufacturing a display panel shown in fig. 5, and includes the following steps:

s610, S620, S640, and S650 in fig. 6 are respectively the same as S510, S520, S540, and S550 in fig. 1, and specific reference to fig. 5 and the related text description thereof is omitted here for brevity, and after S620 and before S640, the following steps are further included:

s630: and patterning the pixel defining layer by an exposure and development method to form a patterned pixel defining layer, wherein the patterned pixel defining layer comprises a resin filling area and a pixel defining area.

In this embodiment, the pixel layer formed on the anode layer is patterned by exposure and development to form a patterned pixel defining layer, and thus a resin filling region and a pixel defining region are obtained in the patterned pixel defining layer, and each sub-pixel unit can be sequentially formed in the pixel defining region.

Referring to fig. 7, fig. 7 is a schematic flow chart illustrating a third embodiment of a method for manufacturing a display panel according to the present application. The method for manufacturing a display panel according to this embodiment is a schematic flow chart of another detailed embodiment of the method for manufacturing a display panel in fig. 5, and includes the following steps:

s710, S720, S730, and S750 in fig. 7 are the same as S510, S520, S530, and S550 in fig. 1, respectively, and for details, please refer to fig. 5 and the related text description thereof, which is not repeated here, and after S730 and before S640, the method further includes the following steps:

s740: and respectively evaporating corresponding organic light-emitting materials in the pixel limiting areas to form a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, wherein the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and share the first sub-pixel distributed in the center of the virtual regular hexagon to form a basic pixel unit.

In this embodiment, after patterning the pixel defining layer and forming the patterned pixel defining layer including the resin filling region and the pixel defining region, the pixel defining region is further sequentially deposited with the corresponding organic light emitting materials to form the first sub-pixel, the second sub-pixel and the third sub-pixel arranged in a virtual regular hexagon, wherein the second sub-pixel and the third sub-pixel are distributed at six vertices of the virtual regular hexagon at intervals and share the first sub-pixel distributed at the center of the virtual regular hexagon to form a basic pixel unit, and the basic pixel units are further distributed in a staggered manner to finally form the patterned pixel defining layer.

In a specific embodiment, the first sub-pixel is a green sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a blue sub-pixel, wherein, when the pixel defining layer is patterned and the patterned pixel defining layer including the resin filling region and the pixel defining region is formed, the green organic light emitting material, the red organic light emitting material and the blue organic light emitting material are further sequentially evaporated in the pixel defining region to form a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in a virtual regular hexagon, and the red sub-pixel and the blue sub-pixel are distributed at six vertices of the virtual regular hexagon at intervals and share the green sub-pixel distributed at the center of the virtual regular hexagon to form a basic pixel unit, and the basic pixel units are further distributed in a staggered manner, to finally form the patterned pixel defining layer.

Based on the general inventive concept, there is also provided a display device including the display panel as described in any one of the above. Referring to fig. 8, fig. 8 is a schematic structural diagram of an embodiment of a display device provided in the present application. As shown in fig. 8, thedisplay device 80 includes adisplay panel 810, and thedisplay panel 810 is a display panel as described above.

The beneficial effect of this application is: unlike the state of the art, the present application provides a display panel including: a flexible substrate; the anode layer is arranged on the flexible substrate; the patterned pixel definition layer is arranged on the anode layer and comprises a resin filling area and a pixel definition area, wherein the pixel definition area is provided with a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon, the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and the first sub-pixel distributed at the center of the virtual regular hexagon is shared to form a basic pixel unit; and the thin film packaging layer is arranged on the patterned pixel defining layer. In this way, when the display panel in this application shows the hypotenuse, because of the angle between the adjacent sub pixel is greater than 90, can reduce the effect that the sawtooth felt effectively.

The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A display panel, comprising:

a flexible substrate;

an anode layer disposed on the flexible substrate;

a patterned pixel defining layer disposed on the anode layer, the patterned pixel defining layer including a resin filling region and a pixel defining region, wherein the pixel defining region is provided with first, second and third sub-pixels arranged in a virtual regular hexagon, the second and third sub-pixels are distributed at six vertices of the virtual regular hexagon at intervals, and share the first sub-pixel distributed at the center of the virtual regular hexagon to form a basic pixel unit;

and the thin film packaging layer is arranged on the patterned pixel defining layer.

2. The display panel according to claim 1,

the first sub-pixel, the second sub-pixel and the third sub-pixel are all one of circular, elliptical and polygonal in shape.

3. The display panel according to claim 1,

the area of the first sub-pixel is smaller than that of the second sub-pixel, and the area of the second sub-pixel is smaller than that of the third sub-pixel.

4. The display panel according to claim 1,

the distance between each two of the first sub-pixel, the second sub-pixel and the third sub-pixel is 15-25 um.

5. The display panel according to any one of claims 1 to 4,

the first sub-pixel, the second sub-pixel and the third sub-pixel are any one of green, red and blue light emitting colors, and the light emitting colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different.

6. The display panel according to claim 5,

the first sub-pixel is a green sub-pixel, the second sub-pixel is a red sub-pixel, and the third sub-pixel is a blue sub-pixel.

7. A method for manufacturing a display panel, the method comprising:

forming an anode layer on a flexible substrate;

forming a pixel defining layer on the anode layer;

patterning the pixel defining layer to form a patterned pixel defining layer, wherein the patterned pixel defining layer includes a resin filling region and a pixel defining region;

forming a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon shape in the pixel limiting area respectively, wherein the second sub-pixel and the third sub-pixel are distributed at six vertexes of the virtual regular hexagon at intervals, and share the first sub-pixel distributed in the center of the virtual regular hexagon to form a basic pixel unit;

and forming a thin film packaging layer on the patterned pixel defining layer to cover the patterned pixel defining layer.

8. The method of claim 7, wherein the step of patterning the pixel defining layer to form a patterned pixel defining layer comprises:

and patterning the pixel defining layer by an exposure and development method to form a patterned pixel defining layer.

9. The method according to claim 7, wherein the step of forming the first sub-pixel, the second sub-pixel and the third sub-pixel in the pixel defining region in a virtual regular hexagonal arrangement respectively comprises:

and respectively evaporating corresponding organic light-emitting materials in the pixel limiting areas to form a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged in a virtual regular hexagon.

10. A display device comprising the display panel according to any one of claims 1 to 6.

Images