CN106909249B - Touch display substrate and touch display device - Google Patents
Touch display substrate and touch display deviceDownload PDFInfo
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- CN106909249B CN106909249BCN201710103437.1ACN201710103437ACN106909249BCN 106909249 BCN106909249 BCN 106909249BCN 201710103437 ACN201710103437 ACN 201710103437ACN 106909249 BCN106909249 BCN 106909249B
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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Abstract
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a touch control display substrate and a touch control display device thereof.
Background
With the rapid development of display technology, touch display devices have gradually spread throughout the lives of people. Currently, a touch display device can be divided into: the touch display device comprises an outer hanging type touch display device, a surface covering type touch display device and an inner embedding type touch display device, wherein the inner embedding type touch display device is used for embedding a touch electrode into a liquid crystal display panel, the whole thickness of a module can be reduced, the manufacturing cost of the touch display device can be greatly reduced, and the touch display device is favored by various large panel manufacturers.
Currently, the conventional embedded touch display device detects the touch position of a finger by using the principle of mutual capacitance or self-capacitance. The touch control display device comprises a driving unit, a plurality of self-capacitance electrodes and a plurality of driving units, wherein the self-capacitance electrodes are arranged on the same layer and are insulated from each other, when a human body does not touch a screen, the capacitance borne by each capacitance electrode is a fixed value, when the human body touches the screen, the capacitance borne by the corresponding self-capacitance electrode is a fixed value superposed with the capacitance of the human body, and the touch control position can be judged by detecting the capacitance value change of each capacitance electrode by a touch control integrated circuit in the driving unit in a touch control time period. Because the human body capacitance can act on all self-capacitances, and only act on the projection capacitance in the self-capacitances relative to the human body capacitance, the touch variation caused by the touch of the human body on the screen can be larger than that of the touch screen manufactured by utilizing the mutual capacitance principle, so that the signal-to-noise ratio of touch can be effectively improved relative to the touch screen of the mutual capacitance, and the accuracy of touch sensing is improved.
In the in-cell touch display device, in order to connect the self-capacitance electrodes to the driving unit, touch signal lines are generally disposed to be connected to the self-capacitance electrodes. Specifically, as shown in fig. 1, a touch display substrate in the prior art includes a plurality of self-capacitance electrodes 100 arranged in a matrix and a plurality oftouch signal lines 200, wherein thetouch signal lines 200 are located below the self-capacitance electrodes 100, and each self-capacitance electrode 100 is electrically connected to a driving unit through thetouch signal line 200. In this structure, eachtouch signal line 200 is electrically connected to its corresponding self-capacitance electrode 100 only through theconnection hole 300, but is not electrically connected to other self-capacitance electrodes 200, that is, theconnection hole 300 is only disposed at a position where thetouch signal line 100 and the self-capacitance electrode 200 need to be electrically connected, and theconnection hole 300 is not disposed at a position where thetouch signal line 100 and other self-capacitance electrodes are overlapped. In an actual product, the position of theconnection hole 300 is more likely to gather charged ions due to an electric field, so that the uneven distribution of theconnection hole 300 causes uneven display, thereby affecting the uniformity of the display screen.
Disclosure of Invention
The invention provides a touch display substrate, which sequentially comprises: the touch control panel comprises a substrate, a first insulating layer, a common electrode layer and a second insulating layer, wherein the common electrode layer comprises a plurality of touch control electrode blocks; the touch signal line is positioned between the substrate and the first insulating layer and is electrically connected to the corresponding touch electrode block through a connecting hole;
the connecting hole comprises a bridge, a first via hole and a second via hole, wherein the first via hole penetrates through the second insulating layer and the first insulating layer to expose the touch signal line; the second via hole penetrates through the first insulating layer to expose the touch electrode block, and the first via hole and the second via hole are filled with the bridge;
the method is characterized in that: the touch display substrate further comprises an auxiliary connecting hole setting area which is positioned in an overlapping area of the touch signal line and the touch electrode block except the position of the connecting hole; at least one auxiliary connecting hole is formed in the auxiliary connecting hole setting area, and the auxiliary connecting hole comprises one of the first through hole and the second through hole.
The invention also provides a touch display device which comprises the touch display substrate.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the touch display substrate comprises a first through hole penetrating through a second insulating layer and a first insulating layer to expose a touch signal line, and a second through hole penetrating through the first insulating layer to expose a touch electrode block, wherein the touch signal line is electrically connected with the touch electrode block through a connecting hole, and the connecting hole comprises the first through hole and the second through hole; particularly, the touch display substrate and the touch display device comprising the same further comprise an auxiliary connecting hole setting area, wherein the auxiliary connecting hole setting area is positioned in an overlapping area of the touch signal line and the touch electrode block except the position of the connecting hole; at least one auxiliary connecting hole is arranged in the auxiliary connecting hole arrangement area, the auxiliary connecting hole comprises one of the first through hole and the second through hole, namely one of the first through hole and the second through hole is arranged at a position where the touch signal line is overlapped with the touch electrode block but does not need to be conducted, so that the through holes on the whole touch display substrate are uniformly distributed, and the phenomenon of uneven display caused by charged ion aggregation can be greatly improved even if the phenomenon of charged ion aggregation occurs near the first through hole and the second through hole in the display process; in addition, the first via hole and the second via hole in the auxiliary connecting hole setting area can be formed together when the connecting hole is manufactured, and manufacturing steps and manufacturing cost are not additionally increased.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a touch display substrate in the prior art;
fig. 2 is a schematic structural diagram of a touch display substrate according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a touch display substrate according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional view of one of the auxiliary connection holes of the touch display substrate according to the embodiment of the invention;
fig. 5 is a schematic cross-sectional view illustrating another auxiliary connection hole of a touch display substrate according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of another touch display substrate according to an embodiment of the present invention;
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment of the invention provides a touch display substrate, which sequentially comprises: the touch control panel comprises a substrate, a first insulating layer, a common electrode layer and a second insulating layer, wherein the common electrode layer comprises a plurality of touch control electrode blocks; the touch signal line is positioned between the substrate and the first insulating layer and is electrically connected to the corresponding touch electrode block through a connecting hole; the connecting hole comprises a bridge, a first via hole and a second via hole, wherein the first via hole penetrates through the second insulating layer and the first insulating layer to expose the touch signal line; the second via hole penetrates through the first insulating layer to expose the touch electrode block, and the first via hole and the second via hole are filled with the bridge; particularly, the touch display substrate further comprises an auxiliary connecting hole setting area, which is located in an overlapping area of the touch signal line and the touch electrode block except the position of the connecting hole; at least one auxiliary connection hole is formed in the auxiliary connection hole setting area, and the auxiliary connection hole includes one of the first via hole and the second via hole. That is, one of the first via hole and the second via hole is arranged at a position where the touch signal line is overlapped with the touch electrode block but does not need to be conducted, so that the via holes on the whole touch display substrate are uniformly distributed, and even if the charged ions are gathered near the first via hole and the second via hole in the display process, the phenomenon of uneven display caused by the gathered charged ions can be greatly improved. In addition, the first via hole and the second via hole in the auxiliary connecting hole setting area can be formed together when the connecting hole is manufactured, and manufacturing steps and manufacturing cost are not additionally increased.
Fig. 2 is a schematic structural diagram of a touch display substrate according to an embodiment of the present invention, where a common electrode layer of the touch display substrate includes a plurality oftouch electrode blocks 50 insulated from each other, eachtouch electrode block 50 is time-division multiplexed as a touch sensing electrode and a common electrode, and eachtouch electrode block 50 is connected to a driving unit of a terminal of the touch display substrate. When thetouch electrode block 50 is used as a touch sensing electrode, the driving unit controls the touch display device formed by the touch display substrate to realize touch sensing, and when thetouch electrode block 50 is used as a common electrode, the driving unit controls the touch display device on which the touch display substrate is located to display images.
Specifically, the touch display substrate further includes a plurality oftouch signal lines 30, and the plurality oftouch signal lines 30 are disposed in one-to-one correspondence with the plurality oftouch electrode blocks 50 and electrically connected to the plurality oftouch electrode blocks 50 through the connectingholes 10 in one-to-one correspondence. When thetouch electrode blocks 50 serve as touch sensing electrodes, eachtouch electrode block 50 is electrically connected to the driving unit through thetouch signal line 30. In the touch detection process, a touch driving signal is generated by a touch integrated circuit in the driving unit and is supplied to thetouch electrode block 50 through thetouch signal line 30, so that thetouch electrode block 50 has a certain amount of electric charge; the integrated circuit for touch control in the driving unit reads the change condition of the charged state in thetouch electrode block 50 through thetouch signal line 30, and can determine which touch electrode block orblocks 50 are touched through the change of the charged state, so that the position of the touch point can be further determined. The touch driving signal and the change condition of the charged state can be understood as a pulse signal.
Eachtouch signal line 30 is electrically connected to the correspondingtouch electrode block 50 through aconnection hole 10, but is not electrically connected to othertouch electrode blocks 50, that is, theconnection hole 10 is only disposed at a position where thetouch signal line 30 and thetouch electrode block 50 need to be electrically connected, because theconnection hole 10 is located, charged ions are more likely to gather due to an electric field, and in order to overcome the defect of uneven display caused by the electric field, anauxiliary connection hole 20 is further disposed on the touch display substrate, and theauxiliary connection hole 20 is located in an auxiliary connection hole disposition region, which is an overlapping region of thetouch signal line 30 and thetouch electrode block 50 except for the position of theconnection hole 10.
In the touch display substrate shown in the embodiment of fig. 2, the auxiliary connection hole installation regions are located in the overlapping region of thetouch signal line 30 and thetouch electrode block 50 in the column direction of eachconnection hole 10 except the position of theconnection hole 10, and each auxiliary connection hole installation region is provided with anauxiliary connection hole 20. Of course, in other embodiments, theauxiliary connection holes 20 may be disposed at intervals in the auxiliary connection hole disposition region in the column direction of eachconnection hole 10, which is not particularly limited.
The structure and function of theauxiliary connection hole 20 and theconnection hole 10 are different, theconnection hole 10 is used for correspondingly conducting thetouch signal line 30 and thetouch electrode block 50 at the position of theconnection hole 10, theauxiliary connection hole 20 does not have the function of conducting thetouch signal line 30 and the touch electrode block, and theauxiliary connection hole 20 is mainly used for enabling the distribution of the via holes on the whole touch display substrate to be more uniform, so as to overcome the problem that the display picture is not uniform due to the fact that charged ions are easily gathered near the via holes.
Fig. 3 is a schematic cross-sectional view of a touch display substrate according to an embodiment of the invention, and please refer to fig. 2 and fig. 3 for more clearly describing the structures and functions of theconnection holes 10 and theauxiliary connection holes 20. Specifically, the touch display substrate provided in this embodiment sequentially includes a substrate 1, a first metal layer 11, a second metal layer 12, aplanarization layer 2, a third metal layer 3, a firstinsulating layer 4, acommon electrode layer 5, a secondinsulating layer 6, and a pixel electrode layer 7. A gate insulating layer is disposed between the second metal layer 12 and the first insulating layer 11, wherein the first insulating layer 11 includes a gate and agate line 110 of the touch display substrate for providing a scanning signal to a pixel unit of the touch display substrate, and the second insulating layer 12 includes a source and a drain of the touch display substrate and adata line 120 for providing a data signal to the pixel unit of the touch display substrate;
theflat layer 2 is located between the third metal layer 3 and the second metal layer 12, the third metal layer 3 includes atouch signal line 30, and the touch signal line is conducted with the correspondingtouch electrode block 50 through theconnection hole 10 and is used for transmitting a touch driving signal and a touch detection signal, that is, thetouch signal line 30 and the third metal layer 3 are formed on the same layer;
the firstinsulating layer 4 is located between the third metal layer 3 and thecommon electrode layer 5 for insulating and spacing the third metal layer 3 from thecommon electrode layer 5. Thecommon electrode layer 5 comprises atouch electrode block 50, and in a display time period, thetouch electrode block 50 is reused as a common electrode to provide a common signal for a pixel unit of the touch display substrate;
the secondinsulating layer 6 is located between thecommon electrode layer 5 and the pixel electrode layer 7, and is used for insulating and separating thecommon electrode layer 5 and the pixel electrode layer 7. The pixel electrode layer 7 includes abridge 70 andpixel electrodes 71, and eachpixel electrode 71 is located in a pixel unit of the touch display substrate and is used for displaying an image, that is, thebridge 70 and the pixel electrode layer 7 are formed in the same layer.
The touch display substrate further includes afirst via hole 41 and asecond via hole 42, thefirst via hole 41 sequentially penetrates through the secondinsulating layer 6 and the firstinsulating layer 4 to expose thetouch signal line 30, thesecond via hole 42 sequentially penetrates through the secondinsulating layer 6 to expose thetouch electrode block 50, and thebridge 70 fills the first viahole 41 and the second viahole 42. Specifically, theconnection hole 10 includes afirst via hole 41 and asecond via hole 42 and abridge 70 filling thefirst via hole 41 and thesecond via hole 42, so that thetouch signal line 30 and thetouch electrode block 50 are electrically connected together through the bridge structure, and the touch detection signal is transmitted to the correspondingtouch electrode block 50 through thetouch signal line 30.
The auxiliary connectinghole 20 in the embodiment of the present invention includes a first auxiliary connecting hole 201 and a second auxiliary connecting hole 202 having different structures, as shown in fig. 4 and 5. Fig. 4 is a schematic cross-sectional view of one of the auxiliary connection holes 201 of the touch display substrate according to the embodiment of the present invention, where the first auxiliary connection hole 201 includes abridge 70 and afirst via hole 41, thefirst via hole 41 sequentially penetrates through the secondinsulating layer 6 and thefirst insulating layer 4 to expose thetouch signal line 30, thebridge 70 and the pixel electrode layer 7 are formed in the same layer, and thefirst via hole 41 is filled; fig. 5 is a schematic cross-sectional view of another auxiliary connection hole 202 of the touch display substrate according to the embodiment of the invention, in which the second auxiliary connection hole 202 includes abridge 70 and asecond via hole 42, thesecond via hole 42 penetrates through the secondinsulating layer 6 to expose thetouch electrode block 50, thebridge 70 and the pixel electrode layer 7 are formed in the same layer, and thesecond via hole 41 is filled. That is, the first auxiliary connection hole 201 and the second auxiliary connection hole 202 only include one of thefirst via hole 41 and thesecond via hole 42, and although the via hole is disposed in the auxiliary connection hole installation region, thetouch signal line 30 and thetouch electrode block 50 are not conducted there. Therefore, the connection mode between thetouch signal line 30 and thetouch electrode block 50 is not changed while the uniformity of the via hole distribution on the whole surface of the touch display substrate is enhanced and the display uniformity is improved. Moreover, as can be seen from the structural composition of the first auxiliary connecting hole and the second auxiliary connecting hole, the structures of the first auxiliary connecting hole or the second auxiliary connecting hole are respectively a part of the connecting hole, so that the first auxiliary connecting hole and the second auxiliary connecting hole can be formed together when the connecting hole is manufactured, and the manufacturing steps and the manufacturing cost are not additionally increased.
In the touch display substrate provided in the above embodiment, the auxiliary connection hole setting area in the overlapping area between the touch signal line and the touch electrode block except the position of the connection hole is provided with the first auxiliary connection hole or the second auxiliary connection hole, that is, the auxiliary connection hole setting area is provided with at most one of the first via hole and the second via hole, so that the distribution of the via holes on the entire touch display substrate is relatively uniform while the touch effect is not affected, and thus, even if the charged ions are gathered near the first via hole and the second via hole in the display process, the phenomenon of display unevenness caused by the charged ions gathering can be greatly improved; and the first auxiliary connecting hole or the second auxiliary connecting hole can be formed together when the connecting hole is manufactured, and the manufacturing steps and the manufacturing cost are not additionally increased.
Preferably, in the invention, all the auxiliary connecting holes of the touch display substrate are first auxiliary connecting holes or all the auxiliary connecting holes are second auxiliary connecting holes, that is, all the auxiliary connecting hole setting areas provided with the auxiliary connecting holes of the touch display substrate are first via holes or all the auxiliary connecting hole setting areas are second via holes, so that the types of the via holes of the auxiliary connecting hole setting areas provided with the auxiliary connecting holes are consistent, the via hole distribution uniformity on the whole touch display substrate can be further improved, and the phenomenon of uneven display caused by charged ion aggregation is further improved.
Fig. 6 is a schematic structural diagram of another touch display substrate according to an embodiment of the present invention, and for clarity of description, fig. 6 shows a schematic structural diagram of a location of a touch electrode block of the touch display substrate. As shown in fig. 6, the touch display substrate includes atouch electrode block 50 that can be multiplexed as a common electrode, and a plurality of pixel units are formed by crossing adata line 120 and agate line 110, eachtouch electrode block 50 corresponds to a plurality of pixel units arranged in a matrix, and serves as a common electrode of the plurality of pixel units in an image display stage, apixel electrode 71 is disposed in each pixel unit, and thepixel electrode 71 is electrically connected to thedata line 120 through a thin film transistor, and cooperates with thetouch electrode block 50 multiplexed as a common electrode to enable an image display device in which the touch display substrate is disposed to implement image display.
The touch display substrate further includes atouch signal line 30 electrically connected to the correspondingtouch electrode block 50 through theconnection hole 10 for transmitting a touch detection signal at a touch detection stage, and the structural composition of theconnection hole 10 is the same as that of theconnection hole 10 shown in fig. 3, and is not described herein again.
In order not to affect the light transmittance of the touch display device where the touch display substrate is located, in the present embodiment, thetouch signal lines 30 extend in the row direction and are located in the light shielding area between two adjacent rows of pixel units, and the orthographic projection of thetouch signal lines 30 on the substrate is at least partially overlapped with the orthographic projection of thedata lines 120 on the substrate; meanwhile, theconnection hole 10 is disposed where thetouch signal line 30 crosses and overlaps thegate line 110, that is, theconnection hole 10 is disposed in an overlapping area of thetouch signal line 30 and thetouch electrode block 50 between two adjacent rows of pixel units.
The touch display substrate further includes an auxiliary connection hole setting area, where the auxiliary connection hole setting area is located in an overlapping area between thetouch signal line 30 and thetouch electrode block 50 except for the location of theconnection hole 10, and in this embodiment, the auxiliary connection hole setting area is located in an overlapping area between thetouch signal line 30 and thetouch electrode block 50 between two adjacent rows of pixel units. In the present embodiment, each auxiliary connection hole disposing region is provided with anauxiliary connection hole 20, that is, the overlapping region of thetouch signal line 30 and thetouch electrode block 50 between two adjacent rows of pixel units except for the position of theconnection hole 10 is provided with anauxiliary connection hole 20, the auxiliary connection holes 20 may be all the first auxiliary connection holes 201 of the structure shown in fig. 4, or all the second auxiliary connection holes 202 of the structure shown in fig. 5, or may be part of the first auxiliary connection holes 201 of the structure shown in fig. 4, or part of the second auxiliary connection holes 202 of the structure shown in fig. 5, which is not limited herein.
Of course, in other embodiments, it may be configured as follows: auxiliary connectingholes 20 are arranged in the overlapping area of thetouch signal line 30 and thetouch electrode block 50 between every two rows of pixel units except the position of the connectinghole 10; alternatively, theauxiliary connection hole 20 is provided only in the auxiliary connection hole disposition region of the overlapping region of thetouch signal line 30 and thetouch electrode block 50 in the same column direction as theconnection hole 10, which is not particularly limited herein.
In the touch display substrate provided in the above embodiment, the auxiliary connection hole setting area in the overlapping area between the touch signal line and the touch electrode block except the position of the connection hole is provided with the first auxiliary connection hole or the second auxiliary connection hole, that is, the auxiliary connection hole setting area is provided with at most one of the first via hole and the second via hole, so that the distribution of the via holes on the entire touch display substrate is relatively uniform while the touch effect is not affected, and thus, even if the charged ions are gathered near the first via hole and the second via hole in the display process, the phenomenon of display unevenness caused by the charged ions gathering can be greatly improved; and the first auxiliary connecting hole or the second auxiliary connecting hole can be formed together when the connecting hole is manufactured, and the manufacturing steps and the manufacturing cost are not additionally increased.
Further, the present invention also provides a touch display device, wherein a touch display substrate of the touch display device includes a first via hole penetrating through the second insulating layer and the first insulating layer to expose the touch signal line, and a second via hole penetrating through the first insulating layer to expose the touch electrode block, the touch signal line is electrically connected to the touch electrode block through a connection hole, and the connection hole includes the first via hole and the second via hole; in the image display stage, the touch electrode block is multiplexed into a display common electrode. Particularly, the touch display substrate and the touch display device comprising the same further comprise an auxiliary connecting hole setting area, wherein the auxiliary connecting hole setting area is positioned in an overlapping area of the touch signal line and the touch electrode block except the position of the connecting hole; at least one auxiliary connecting hole is arranged in the auxiliary connecting hole arrangement area, the auxiliary connecting hole comprises one of the first through hole and the second through hole, namely one of the first through hole and the second through hole is arranged at a position where the touch signal line is overlapped with the touch electrode block but does not need to be conducted, so that the through holes on the whole touch display substrate are uniformly distributed, and the phenomenon of uneven display caused by charged ion aggregation can be greatly improved even if the phenomenon of charged ion aggregation occurs near the first through hole and the second through hole in the display process; in addition, the first via hole and the second via hole in the auxiliary connecting hole setting area can be formed together when the connecting hole is manufactured, and manufacturing steps and manufacturing cost are not additionally increased.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A touch display substrate sequentially comprises: the touch control panel comprises a substrate, a first insulating layer, a common electrode layer and a second insulating layer, wherein the common electrode layer comprises a plurality of touch control electrode blocks;
the touch signal line is positioned between the substrate and the first insulating layer and is electrically connected to the corresponding touch electrode block through a connecting hole; the connecting hole comprises a bridge, a first via hole and a second via hole, wherein the first via hole penetrates through the second insulating layer and the first insulating layer to expose the touch signal line; the second via hole penetrates through the first insulating layer to expose the touch electrode block, and the first via hole and the second via hole are filled with the bridge;
the method is characterized in that:
the touch display substrate further comprises an auxiliary connecting hole setting area which is positioned in an overlapping area of the touch signal line and the touch electrode block except the position of the connecting hole; at least one auxiliary connecting hole setting area is provided with an auxiliary connecting hole, and the auxiliary connecting hole comprises one of the first via hole and the second via hole; the auxiliary connection hole is formed simultaneously with the connection hole.
2. The touch display substrate of claim 1, wherein the auxiliary connection holes are disposed in an auxiliary connection hole disposing area in a column direction of each connection hole.
3. The touch display substrate of claim 2, wherein all of the auxiliary connection holes comprise the first via and the bridge, and the bridge fills the first via.
4. The touch display substrate of claim 2, wherein all of the auxiliary connection holes comprise the second via and the bridge, and the bridge fills the second via.
5. The touch display substrate according to claim 1, further comprising a pixel electrode layer on a side of the second insulating layer away from the substrate; the pixel electrode layer comprises a pixel electrode and the bridge.
6. The touch display substrate according to claim 5, further comprising a plurality of pixel units arranged in a matrix, wherein each of the touch electrode blocks corresponds to a plurality of the pixel units;
the touch signal lines are located in the shading areas of the pixel units and extend along the column direction of the pixel units, and the auxiliary connecting hole setting areas are located in the overlapping areas of the touch signal lines and the touch electrode blocks between two adjacent rows of the pixel units except the positions of the connecting holes.
7. The touch display substrate of claim 6, wherein the auxiliary connection holes are disposed in the auxiliary connection hole disposing regions between two adjacent rows of the pixel units.
8. The touch display substrate of claim 7, wherein all of the auxiliary connection holes comprise the first via and the bridge, and the bridge fills the first via.
9. The touch display substrate of claim 7, wherein all of the auxiliary connection holes comprise the second via and the bridge, and the bridge fills the second via.
10. The touch display substrate according to claim 6, further comprising a first metal layer, a second metal layer and a third metal layer;
the first metal layer comprises a gate line for transmitting a scanning signal to the pixel unit;
the second metal layer comprises a data line used for transmitting data signals to the pixel unit;
the third metal layer comprises a touch signal line, and the orthographic projection of the touch signal line on the substrate is at least partially overlapped with the orthographic projection of the data line on the substrate.
11. A touch display device, comprising:
the touch display substrate according to any one of claims 1 to 10, wherein the touch electrode block serves as a common electrode for display in a display screen stage.
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| CN201710103437.1ACN106909249B (en) | 2017-02-24 | 2017-02-24 | Touch display substrate and touch display device |
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| CN201710103437.1ACN106909249B (en) | 2017-02-24 | 2017-02-24 | Touch display substrate and touch display device |
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| CN106909249A CN106909249A (en) | 2017-06-30 |
| CN106909249Btrue CN106909249B (en) | 2020-06-09 |
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| CN107506076B (en) | 2017-08-10 | 2019-05-14 | 京东方科技集团股份有限公司 | A kind of touch display substrate, manufacturing method and display device |
| CN107632436A (en)* | 2017-09-28 | 2018-01-26 | 厦门天马微电子有限公司 | Display panel and display device |
| CN108110010B (en) | 2017-12-15 | 2021-10-01 | 京东方科技集团股份有限公司 | Array substrate and preparation method thereof, and touch display panel |
| CN109976047B (en)* | 2018-01-02 | 2021-03-16 | 京东方科技集团股份有限公司 | Touch electrode structure, touch substrate and preparation method, display panel and device |
| CN111857395B (en)* | 2019-04-30 | 2025-01-17 | 群创光电股份有限公司 | Touch display device |
| CN112416156A (en)* | 2019-08-23 | 2021-02-26 | 陕西坤同半导体科技有限公司 | Touch display panel and preparation method |
| CN111696444B (en)* | 2020-07-21 | 2022-06-24 | 京东方科技集团股份有限公司 | A display panel and its manufacturing method and display device |
| CN111857432B (en)* | 2020-07-24 | 2024-04-19 | 京东方科技集团股份有限公司 | Touch substrate, touch display device and manufacturing method |
| CN112099670B (en)* | 2020-09-11 | 2024-01-23 | 京东方科技集团股份有限公司 | Touch substrate, touch display panel and touch display device |
| CN113157150B (en)* | 2021-03-19 | 2023-07-25 | 武汉华星光电半导体显示技术有限公司 | Touch module and display device |
| CN114023257B (en)* | 2021-11-12 | 2023-07-25 | 云谷（固安）科技有限公司 | Display panel, display panel driving method and display device |
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| CN104503648A (en)* | 2015-01-09 | 2015-04-08 | 京东方科技集团股份有限公司 | Embedded type touch screen and display device |
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- 2017-02-24CNCN201710103437.1Apatent/CN106909249B/enactiveActive
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503648A (en)* | 2015-01-09 | 2015-04-08 | 京东方科技集团股份有限公司 | Embedded type touch screen and display device |
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