CN112099664B - Touch display panel - Google Patents
Touch display panel Download PDFInfo
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- CN112099664B CN112099664B CN202010863602.5A CN202010863602A CN112099664B CN 112099664 B CN112099664 B CN 112099664B CN 202010863602 A CN202010863602 A CN 202010863602A CN 112099664 B CN112099664 B CN 112099664B
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- touch
- recess
- electrode
- display panel
- substrate layer
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- 239000000758 substrate Substances 0.000 claims abstract description 95
- 238000000059 patterning Methods 0.000 claims abstract description 41
- 238000010030 laminating Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 22
- 239000010410 layer Substances 0.000 description 117
- 239000011241 protective layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
Abstract
According to the touch display panel of the embodiment of the invention, the touch module comprises a laminated arrangement: a substrate layer including a plurality of first recesses whose openings are located at a side remote from the display panel; each first touch electrode comprises a plurality of first patterning parts, each first patterning part is provided with a first bulge filling the first recess, each first patterning part further comprises a second recess, and the position of the second recess corresponds to the position of the first recess in the direction perpendicular to the substrate layer. The substrate layer is provided with the structure with the plurality of first recesses, so that the bending resistance of the substrate layer is improved, and at least one part of the first touch electrode positioned on the substrate layer forms a first bulge filling the first recess and forms a second recess corresponding to the first recess, so that the bending resistance of the first touch electrode is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel.
Background
Organic electroluminescent displays (Organic Light Emitting Display, OLED) are a very promising display technology. The OLED display device has the characteristics of excellent display performance, self-luminescence, simple structure, ultra-light weight, high response speed, wide visual angle, low power consumption, flexible display realization and the like, is known as a dream display, is favored by various large display manufacturers, and becomes the master force in the technical field of display.
With the development of flexible Display (Display) technology, there is an increasing demand for flexible Touch Display panels (Touch Panel), in which Touch modules are generally integrated on the Display Panel, but in the bending process, the bending resistance of the Touch modules is poor, and the Touch modules are easy to break in the bending process, so that the performance of the whole Touch Display Panel is damaged.
Disclosure of Invention
The invention provides a touch display panel, which improves the bending resistance of a touch module and avoids the situation that the touch module breaks in the bending process.
The embodiment of the invention provides a touch display panel, a display panel and a touch module, wherein the touch module is positioned on one side of the display panel, and is characterized in that the touch module comprises the following components in a laminated mode:
a substrate layer including a plurality of first recesses whose openings are located at a side remote from the display panel;
each first touch electrode comprises a plurality of first patterning parts, each first patterning part is provided with a first bulge filling the first recess, each first patterning part further comprises a second recess, and the position of the second recess corresponds to the position of the first recess in the direction perpendicular to the substrate layer.
In another embodiment of the present invention, the touch module further includes an insulating layer covering at least the plurality of first patterned portions, the insulating layer including a second protrusion filling the second recess, the insulating layer further including a third recess, a position of the third recess corresponding to a position of the first recess in a direction perpendicular to the substrate.
In another embodiment of the present invention, the touch module further includes a plurality of second touch electrodes located on a side of the insulating layer away from the substrate layer, each of the second touch electrodes includes a plurality of third protrusions filling the third recesses, and the second touch electrode further includes a fourth recess, where a position of the fourth recess corresponds to a position of the first recess in a direction perpendicular to the substrate.
In another embodiment of the present invention, the first touch electrode extends along a first direction, and the first touch electrode includes a first electrode block disposed on the same layer as the plurality of first patterning portions and electrically connected thereto.
The second touch electrode extends along a second direction, the second touch electrode extends along the second direction, and the plurality of second touch electrodes are arranged along the first direction.
In another embodiment of the invention, the first electrode block is provided with a fourth protrusion filling the first recess, the first electrode block further comprising a fifth recess, the position of the fifth recess corresponding to the position of the first recess in a direction perpendicular to the substrate layer.
In another embodiment of the present invention, the first touch electrode includes a plurality of first electrode blocks disposed on the insulating layer; the insulating layer is provided with a through hole, the plurality of first electrode blocks are electrically connected with the first patterning part through the through hole, and the first touch electrode extends along a first direction on the projection of the substrate layer.
In another embodiment of the present invention, the second touch electrode extends along a second direction, and the plurality of second touch electrodes are arranged along a first direction, and the second touch electrode and the first electrode block are arranged in the same layer and are not in contact.
In another embodiment of the invention, the insulating layer comprises a portion in contact with the substrate layer, the portion in contact with the substrate layer being provided with a fifth bump filling the first recess, the portion in contact with the substrate layer further comprising a sixth recess, the position of the sixth recess corresponding to the position of the first recess in a direction perpendicular to the substrate layer.
In another embodiment of the present invention, the first touch electrode is connected to a touch driving signal line and a touch sensing signal line; the second touch electrode is connected with the touch driving signal line and the touch sensing signal line; or alternatively, the first and second heat exchangers may be,
the first touch electrode is connected with the touch driving signal line, and the second touch electrode is connected with the touch sensing signal line.
According to the touch display panel of the embodiment of the invention, the touch module comprises a laminated arrangement: a substrate layer including a plurality of first recesses whose openings are located at a side remote from the display panel; each first touch electrode comprises a plurality of first patterning parts, each first patterning part is provided with a first bulge filling the first recess, each first patterning part further comprises a second recess, and the position of the second recess corresponds to the position of the first recess in the direction perpendicular to the substrate layer. The substrate layer is provided with the structure with the plurality of first recesses, so that the bending resistance of the substrate layer is improved, and at least one part of the first touch electrode positioned on the substrate layer forms a first bulge filling the first recess and forms a second recess corresponding to the first recess, so that the bending resistance of the first touch electrode is improved.
Drawings
Fig. 1 is a structure of a touch display panel according to an embodiment of the invention;
FIG. 2 is a top view of a touch module according to an embodiment of the invention;
FIG. 3 is a partial enlarged view of the touch module of FIG. 2;
FIG. 4 is a cross-sectional view of the touch module of FIG. 3;
FIG. 5 is a schematic diagram of a first touch electrode according to an embodiment of the invention;
FIG. 6 is a schematic diagram illustrating a structure of a second touch electrode according to an embodiment of the invention;
FIG. 7 is a cross-sectional view of a touch module according to an embodiment of the invention;
FIG. 8 is a top view of a touch module according to another embodiment of the invention;
fig. 9 is a cross-sectional view of the touch module along BB' in the embodiment of fig. 8.
Reference numerals:
display panel-1
Touch module-2
Substrate layer-21
First recess-210
First patterning part-221
First touch electrode-22
First electrode block-222, 222'
Insulating layer-23, 23'
Second touch electrode-24
Protective layer-25
First protrusion-2211
Second recess-2212
Second bump-231
Third recess-232
Third protrusion-241
Fourth recess-242
Fourth bump-2221
Fifth recess-2222
Fifth bump-233
Sixth recess-234
Through-hole-230
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The terms of directions such as "up", "down", "left" and "right" according to the embodiments of the present invention refer to relative positions in coordinate axes, rather than absolute positions. The terms "upper" and "upper" according to the embodiments of the present invention may be understood as being in contact with each other or not in contact with each other, and are not understood as being limiting to the present invention, as will be set by those skilled in the art according to actual circumstances.
As described in the background art, in the prior art, the touch module is generally integrated directly to one side of the display panel to form a lighter and thinner touch display panel. Along with the development of flexible display technology, the touch display panel needs to be bent, and the bending resistance of the touch module is poor, so that the touch module is easy to break in the bending process.
In order to solve the problem, the invention provides a touch display panel, which comprises a display panel and a touch module, wherein the touch module is positioned on one side of the display panel and comprises a substrate layer and a plurality of first touch electrodes positioned on one side of the substrate layer away from the display panel. The surface of the substrate layer far away from the display panel is provided with a plurality of openings, and a plurality of first depressions are formed at the openings. The first depressions may be uniformly arranged in an array or unevenly arranged on the substrate layer; the openings of the first recesses may have the same size, the same depth and the same volume, or may be different, and a person skilled in the art may adjust the size of the bending stress of different parts of the touch module.
For example, when the touch display module has a bending line, the first recesses near the bending line may be provided to have a greater density or a greater depth than the first recesses of the non-bending line attachments, etc. When the touch display module does not have a bending line, the first depressions can be configured to be uniformly distributed in the substrate layer.
By arranging a plurality of first recesses in the substrate layer, bending stress resistance of the substrate layer can be effectively improved, and breakage of the substrate layer is avoided.
The first touch electrodes are used for inputting or outputting touch signals and are positioned on one side of the substrate layer far away from the display panel. Each first touch electrode comprises a plurality of first patterning parts, the first patterning parts are in contact with the substrate layer, one side of each first patterning part, which faces the substrate layer, is provided with first bulges, the first bulges completely fill the first recesses, one side, which is far away from the substrate layer, of each first patterning part is provided with a plurality of second recesses, and the positions of the second recesses correspond to the positions of the first recesses in the direction perpendicular to the substrate layer.
The first patterning part is provided with the convex and concave structures, so that the bending resistance of the first touch electrode is greatly improved.
Referring to the drawings, as shown in fig. 1, a touch display panel of the present invention includes a display panel 1 and a touch module 2, wherein the touch module 2 is located at one side of the display panel, for example, the touch module 2 is located at one side of the light emitting surface 1 of the display panel.
In an embodiment of the invention, the touch module 2 includes a substrate layer 21 and a first patterning portion 221 located on a side of the substrate layer 21 away from the display panel 1, as shown in fig. 2 and 3, fig. 2 is a top view of the touch module, fig. 3 is a partial enlarged view of fig. 2, the touch module 2 includes the substrate layer 21 and a plurality of first touch electrodes 22 (not shown) located on a side of the substrate layer 21 away from the display panel 1, each first touch electrode 22 includes a plurality of first patterning portions 221, a side of the substrate layer 21 away from the display panel 1 is provided with a plurality of first recesses 210, and the first patterning portions 221 cover the plurality of first recesses 210. In the embodiment of the invention, the plurality of first patterning portions may be uniformly disposed. The first recesses 210 may be disposed at the portions of the substrate layer 21 not covered by the first patterned portions, and the number of the first recesses and the positions of the substrate layer are not particularly limited in this embodiment, so those skilled in the art may specifically set the first recesses according to the actual bending situation.
Fig. 4 is a cross-sectional view along AA' of fig. 3, and as shown in fig. 4, a plurality of first recesses 210 are included on a side of the substrate layer 21 away from the display panel 1, the openings of which are located on a side away from the display panel 1, and the first patterning portions 221 of the first touch electrodes 22 are located on a side of the substrate layer 21 away from the display panel 1. The first patterning part 221 is disposed on a surface of the substrate layer 21 away from the display panel 1, and the first patterning part 221 includes a plurality of first protrusions 2211 on a side close to the substrate layer 21, and the first protrusions 2211 fill the plurality of first recesses 210 of the substrate layer. The first patterning 221 includes a plurality of second recesses 2212 at a side remote from the substrate layer, and positions of the second recesses 2212 correspond to positions of the first recesses 210 in a direction perpendicular to the substrate layer.
In this embodiment, the material of the substrate layer 21 may be an inorganic material, and the inorganic material may be one or more selected from silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, zirconium dioxide, or the like. The display panel 1 includes a light emitting layer and an encapsulation layer provided around the light emitting layer, wherein the substrate layer is in contact with the surface of the encapsulation layer, and since the substrate layer is made of an inorganic material, the substrate layer may be provided on the surface of the encapsulation layer to further function as a barrier against diffusion of water oxygen to the light emitting layer.
In this embodiment, a first recess is provided on the surface of the substrate layer, and the first patterned portion has a first protrusion 2211 filling the first recess, and a second recess 2212 is further provided on the other surface of the first patterned portion opposite to the first protrusion 2211, and the position of the second recess 2212 corresponds to the position of the first recess. By arranging the first patterning part of the substrate layer and the first touch electrode 22 into the concave-convex structure, bending stress suffered by the substrate layer and the first touch electrode 22 can be relieved when the display panel is bent, and the substrate layer and the first touch electrode 22 are prevented from breaking to influence the touch effect.
In another embodiment of the present invention, the first touch electrode 22 further includes a first electrode block 222, as shown in fig. 5, the first electrode block 222 and the first patterned portion 221 are disposed at intervals and electrically connected to each other, the first patterned portion 221 is electrically connected to the adjacent first electrode block 222, and the first electrode block 222 is electrically connected to the adjacent first patterned portion 221. On a plane parallel to the substrate layer, the projection of each first touch electrode 22 extends along a first direction, and the projections of the plurality of first touch electrodes 22 are arranged along a second direction. The first touch electrode 22 receives a touch driving signal and/or a touch sensing signal.
As shown in fig. 6, the touch module 2 further includes a plurality of second touch electrodes 24, wherein, on a plane parallel to the substrate layer, a projection of each second touch electrode 24 extends along the second direction, and projections of the plurality of second touch electrodes 24 are arranged along the first direction. The second touch electrode 24 receives a touch driving signal and/or a touch sensing signal.
In an embodiment of the invention, as shown in fig. 7, fig. 7 is a cross-sectional view of a touch module. The first patterning portion 221 and the first electrode block 222 are disposed on the same layer, the first patterning portion 221 and the first electrode block 222 are both located on a surface of the substrate layer 21 away from the display panel, the first electrode block and the first patterning portion 221 are disposed at intervals and electrically connected, and the first touch electrode extends along the first direction.
Specifically, a side of the first electrode block, which is close to the substrate layer, is provided with a fourth protrusion 2221 filling the first recess 210, and a side of the first electrode block, which is far from the substrate layer, is provided with a fifth recess 2222, and the position of the fifth recess 2222 corresponds to the position of the first recess 210 in the direction perpendicular to the substrate layer.
Further, the first electrode block is further provided with a fourth protrusion 2221 filling the first recess 210, the first electrode block further comprises a fifth recess 2222, and in a direction perpendicular to the substrate layer, a position of the fifth recess 2222 corresponds to a position of the first recess, and a projection of the fifth recess 2222 at least partially coincides with a projection of the first recess 210.
The first patterning part 221 of the first touch electrode and the first electrode block are arranged on the same layer, the first patterning part 221 and the first electrode block are respectively provided with the first bulge 2211 and the fourth bulge 2221 which are filled in the first recess, and the second recess 2212 and the fifth recess 2222 which correspond to the first recess, and the concave-convex structure of the first patterning part 221 and the first electrode block enables the first touch electrode to better relieve stress applied during bending and avoid film breakage.
Specifically, in this embodiment, the touch module further includes an insulating layer 23 located on a surface of the first touch electrode away from the substrate layer, a second protrusion 231 filling the second recess 2212 is disposed on a side of the insulating layer 23 close to the first touch electrode, a third recess 232 is disposed on a side of the insulating layer 23 away from the first touch electrode, and a position of the third recess 232 corresponds to the first recess in a direction of the substrate layer. By providing the insulating layer 23 in a concave-convex structure having the second protrusions 231 and the third depressions 232, the bending resistance of the insulating layer 23 is further improved.
Specifically, in this embodiment, the touch module further includes a second touch electrode 24 located on a surface of the insulating layer 23 away from the substrate layer, a third protrusion 241 filling the third recess 232 is disposed on a side of the second touch electrode 24 close to the insulating layer 23, a fourth recess 242 is disposed on a side of the second touch electrode 24 away from the insulating layer, and in a direction perpendicular to the substrate layer, a position of the fourth recess corresponds to a position of the first recess 210, and further, projections of the first recess 210, the second recess 2212, the third recess 232 and the fourth recess 242 on the substrate layer at least partially overlap, and projections of the first protrusion 2211, the second protrusion 231 and the third protrusion 241 on the substrate layer at least partially overlap.
Specifically, the second touch electrode extends along the second direction, the plurality of second touch electrodes 24 are arranged along the first direction, and the projection of the first touch electrode 22 and the second touch electrode 24 includes an intersection portion on a plane perpendicular to the substrate layer.
Specifically, the touch module further includes a protective layer 25, where the protective layer covers the second touch electrode 24 and a surface of the insulating layer 23 that is not contacted by the second touch electrode, and a side of the protective layer away from the substrate has a flat surface.
In another embodiment of the present invention, as shown in fig. 8 and 9, fig. 8 is a top view of the touch module, and fig. 9 is a cross-sectional view of the touch module along BB'. The first patterning part 221 and the first electrode block 222' are disposed in a non-same layer, and an insulating layer 23' is disposed between the first patterning part 221 and the first electrode block 222 '. The insulating layer is located on the surface of the first patterning portion 221 away from the substrate layer, a second protrusion 231 is arranged on one side of the insulating layer 23' close to the substrate layer, the second protrusion 231 fills a second recess 2212 of the first patterning portion 221, a third recess 232 is arranged on one side of the insulating layer away from the substrate layer, in the direction perpendicular to the substrate layer, the position of the third recess 232 corresponds to the position of the first recess 210, and the projection of the third recess 232 and the first recess at least partially coincide.
Further, the insulating layer 23 'further includes a portion in contact with the substrate layer, the portion of the insulating layer in contact with the substrate layer is provided with a fifth protrusion 233 filling the first recess 210, the insulating layer 23' further includes a sixth recess 234, a position of the sixth recess 234 corresponds to a position of the fifth protrusion 233 in a direction perpendicular to the substrate layer, and a projection of the sixth recess 234 and a projection of the fifth protrusion 233 at least partially overlap.
Specifically, the surface of the insulating layer 23' away from the substrate layer is provided with the second touch electrode 24 and the first electrode block 222' of the first touch electrode 22, and the second touch electrode and the first electrode block 222' are arranged in a non-contact manner. The insulating layer 23 'is provided with a through hole 230, the first electrode block 222' and the first patterned portion 221 are electrically connected through the through hole 230 of the insulating layer, on a plane parallel to the substrate layer, the projections of the first electrode block 222 'and the first patterned portion 221 are at least partially overlapped, the through hole 230 is located at a position where the projections of the first electrode block and the first patterned portion are overlapped, and the portions of two adjacent first electrode blocks 222' are filled in the position of the through hole 230 and are electrically connected through the first patterned portion 221. The projections of the first touch electrodes extend along a first direction on a plane parallel to the substrate layer, and the projections of the plurality of first touch electrodes are arranged along a second direction.
Specifically, the second touch electrode extends along the second direction, and the plurality of second touch electrodes are arranged along the first direction. The projection of the second touch electrode and the projection of the first patterned portion 221 include overlapping portions on a plane parallel to the substrate layer, a third protrusion 241 filling a third recess of the insulating layer 232 is included on a side of the second touch electrode 24 close to the insulating layer at a portion overlapping with the projection of the first patterned portion 221, and a fourth recess 242 is included on a side of the second touch electrode 24 far from the insulating layer 23'. In a direction perpendicular to the substrate layer, the position of the fourth recess 242 corresponds to the position of the first recess 210, the projection of the fourth recess 242 at least partially coinciding with the projection of the first recess 210.
Further, the touch module further includes a protective layer 25, where the protective layer 25 is disposed on the first electrode block 222', the second touch electrode 24, and an insulating layer surface uncovered by the first electrode block and the second touch electrode, and a side of the protective layer 25 away from the substrate layer has a planarized surface.
The materials of the first electrode block, the first patterned portion and the second touch electrode in the above embodiments may be the same, and one or more of ITO, IZO, tiAlTi and the carbon nanotube conductive film.
Further, the touch module related to the invention is a capacitive touch module, when the touch module is a self-capacitive touch module, the first touch electrode is connected with the touch driving signal line and the touch sensing signal line, and the first touch electrode is both a transmitting electrode and a receiving electrode, and simultaneously transmits and receives the touch driving signal and the touch sensing signal. The second touch electrode is connected with the touch driving signal line and the touch sensing signal line, is a transmitting electrode and a receiving electrode, and transmits and receives the touch driving signal and the touch sensing signal simultaneously.
When the touch module is a mutual capacitance type touch module, the first touch electrode is connected with the touch driving signal line and sends out a touch driving signal, and the second touch electrode is a receiving electrode and receives a touch sensing signal; or the second touch electrode is connected with the touch driving signal line and sends out a touch driving signal, and the first touch electrode is a receiving electrode and receives a touch sensing signal.
In an embodiment of the invention, each of the first touch electrode and the second touch electrode is provided with an extraction terminal, and the extraction terminals are in one-to-one correspondence with and electrically connected with a plurality of extraction parts of the circuit board, and are used for outputting touch signals to the circuit board.
It should be noted that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, modifications and substitutions may be made therein without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed and that many other equivalent embodiments may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a touch display panel, includes display panel and touch module, the touch module is located display panel one side, its characterized in that, the touch module is including laminating the setting:
a substrate layer including a plurality of first recesses whose openings are located at a side remote from the display panel;
the touch panel comprises a plurality of first touch electrodes, a plurality of second touch electrodes and a plurality of first touch electrodes, wherein each first touch electrode comprises a plurality of first patterning parts, each first patterning part is provided with a first bulge filling the first recess, each first patterning part further comprises a second recess, and the position of each second recess corresponds to the position of each first recess in the direction perpendicular to the substrate layer;
the touch module further comprises an insulating layer at least covering the plurality of first patterning parts, the insulating layer comprises a second protrusion filling the second recess, the insulating layer further comprises a third recess, and the position of the third recess corresponds to the position of the first recess in the direction perpendicular to the substrate.
2. The touch display panel of claim 1, wherein the touch module further comprises a plurality of second touch electrodes located on a side of the insulating layer away from the substrate layer, the second touch electrodes comprising third protrusions filling the third recesses, the second touch electrodes further comprising fourth recesses, the fourth recesses being located at positions corresponding to the positions of the first recesses in a direction perpendicular to the substrate.
3. The touch display panel of claim 2, wherein the first touch electrode extends along a first direction, the first touch electrode including a first electrode block disposed co-layer with and electrically connected to the plurality of first patterned portions.
4. The touch display panel of claim 3, wherein the second touch electrode extends along a second direction, and the plurality of second touch electrodes are arranged along the first direction.
5. The touch display panel according to claim 4, wherein the first electrode block is provided with a fourth protrusion filling the first recess, the first electrode block further comprising a fifth recess, a position of the fifth recess corresponding to a position of the first recess in a direction perpendicular to the substrate layer.
6. The touch display panel of claim 2, wherein the first touch electrode comprises a plurality of first electrode blocks disposed on the insulating layer; the insulating layer is provided with a through hole, the plurality of electrode blocks are electrically connected with the first patterning part through the through hole, and the first touch electrode extends along a first direction on the projection of the substrate layer.
7. The touch display panel of claim 6, wherein the second touch electrode extends along a second direction, a plurality of the second touch electrodes are arranged along a first direction, and the second touch electrode is arranged in a same layer as the first electrode block and is not in contact with the first electrode block.
8. The touch display panel according to claim 7, wherein the insulating layer includes a portion in contact with the substrate layer, the portion in contact with the substrate layer being provided with a fifth protrusion filling the first recess, the insulating layer further including a sixth recess, a position of the sixth recess corresponding to a position of the fifth protrusion in a direction perpendicular to the substrate layer.
9. The touch display panel according to any one of claims 1 to 8, wherein the first touch electrode is connected to a touch driving signal line and a touch sensing signal line; the second touch electrode is connected with the touch driving signal line and the touch sensing signal line; or alternatively, the first and second heat exchangers may be,
the first touch electrode is connected with the touch driving signal line, and the second touch electrode is connected with the touch sensing signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863602.5A CN112099664B (en) | 2020-08-25 | 2020-08-25 | Touch display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863602.5A CN112099664B (en) | 2020-08-25 | 2020-08-25 | Touch display panel |
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|---|---|
| CN112099664A CN112099664A (en) | 2020-12-18 |
| CN112099664B true CN112099664B (en) | 2023-11-21 |
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