CN213122936U - Touch display panel and electronic equipment - Google Patents
Touch display panel and electronic equipment Download PDFInfo
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- CN213122936U CN213122936U CN202021974800.0U CN202021974800U CN213122936U CN 213122936 U CN213122936 U CN 213122936U CN 202021974800 U CN202021974800 U CN 202021974800U CN 213122936 U CN213122936 U CN 213122936U
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- touch
- display panel
- shielding layer
- signal lines
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- 239000000758 substrate Substances 0.000 claims description 36
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
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Abstract
The utility model relates to a touch-control display panel and electronic equipment. The utility model discloses a touch-control display panel includes: the touch electrodes are arranged in an array; a plurality of touch signal lines, one of the touch signal lines being electrically connected to one of the touch electrodes; the shielding layer is arranged in a different layer with the touch control electrodes, the shielding layer corresponds to at least part of the touch control electrodes, and hollow parts are arranged at positions of the shielding layer corresponding to the touch control signal lines. Therefore, the utility model discloses a touch-control display panel has avoided the breakpoint department of touch-control signal line and touch-control electrode, produces great electric capacity between the remaining touch-control signal line of breakpoint and the shielding layer, and whether there is the phenomenon of breakpoint and breakpoint place position between unable accurate detection out touch-control signal line and the touch-control electrode, improves the accuracy that touch-control display panel signal connection yield detected.
Description
Technical Field
The utility model relates to a touch-control shows the field, concretely relates to touch-control display panel and electronic equipment.
Background
In order to avoid the noise influence of the display signal on the touch signal, the capacitive touch display panel generally adds a whole metal layer between the touch electrode and the display panel as a shielding layer to shield the noise influence of the display signal on the touch signal. However, in the production process of the touch display panel, the connection yield of the touch electrode of the touch display panel needs to be detected, and when a breakpoint (open circuit) exists between the touch electrode and the touch signal line, the capacitance of the touch electrode is greatly reduced during normal detection. Particularly, the touch electrode far away from the driving chip has a larger capacitance with the shielding layer due to the longer touch signal line and the larger area.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a touch display panel, which can avoid generating a large capacitance between the touch signal line and the shielding layer where the breakpoint remains, thereby affecting the detection of the touch electrode yield of the touch display panel and improving the accuracy of the yield detection.
The application provides a touch display panel, touch display panel includes:
the touch electrodes are arranged in an array;
a plurality of touch signal lines, one of the touch signal lines being electrically connected to one of the touch electrodes;
the shielding layer is arranged in a different layer with the touch control electrodes, the shielding layer corresponds to at least part of the touch control electrodes, and hollow parts are arranged at positions of the shielding layer corresponding to the touch control signal lines.
Optionally, the plurality of touch signal lines are divided into a plurality of groups, each group includes a plurality of adjacent touch signal lines, and one hollow portion is disposed corresponding to one group of touch signal lines.
Optionally, the touch display panel further includes a substrate disposed on a side of the shielding layer away from the plurality of touch electrodes; the projection of each group of touch signal lines on the substrate is not overlapped with the projection of the shielding layer on the substrate.
Optionally, the substrate includes a first end and a second end that are opposite to each other, the number of the touch signal lines in each group gradually increases from the first end to the second end, and the hollow portion gradually increases from the first end to the second end.
Optionally, the plurality of touch electrodes are divided into a plurality of groups, each group includes a plurality of touch electrodes arranged at intervals along a first direction, each group of touch electrodes corresponds to a group of touch signal lines, each touch signal line is parallel to the first direction, and the first direction extends from the first end to the second end.
Optionally, the width of the touch electrode along a second direction is gradually reduced from the first end to the second end, and the second direction is perpendicular to the first direction.
Optionally, the shielding layer is a conductor layer.
Optionally, the projection of the shielding layer on the substrate covers the projection of the plurality of touch electrodes on the substrate.
Optionally, the touch display panel further includes a light emitting layer, and the light emitting layer is located on a side of the shielding layer away from the touch electrode.
Based on the same conception, the utility model also provides an electronic equipment, electronic equipment includes:
an apparatus main body; and
in the touch display panel, the touch display panel is disposed on the device main body.
The utility model discloses a touch-control display panel includes: the touch electrodes are arranged in an array; a plurality of touch signal lines, one of the touch signal lines being electrically connected to one of the touch electrodes; the shielding layer is arranged in a different layer with the touch control electrodes, the shielding layer corresponds to at least part of the touch control electrodes, and hollow parts are arranged at positions of the shielding layer corresponding to the touch control signal lines. Therefore, the utility model discloses a touch-control display panel has avoided the breakpoint department of touch-control signal line and touch-control electrode, produces great electric capacity between the remaining touch-control signal line of breakpoint and the shielding layer, and whether there is the phenomenon of breakpoint and breakpoint place position between unable accurate detection out touch-control signal line and the touch-control electrode, improves the accuracy that touch-control display panel signal connection yield detected.
Drawings
To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shielding layer according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a substrate, a touch electrode and a touch signal line according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a substrate, a touch electrode and a touch signal line according to yet another embodiment of the present invention;
fig. 5 is a schematic view of a partial structure of a touch display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
The touch display panel 100 is a display panel integrating a touch function and a display function. Touch screens are broadly classified into infrared type, resistive type, surface acoustic wave type, and capacitive type touch screens. The capacitive touch screen is divided into a self-capacitance type touch screen and a mutual capacitance type touch screen.
The self-capacitance touch screen is characterized in that a transverse electrode array and a longitudinal electrode array are made of transparent conductive materials (such as Indium Tin Oxide (ITO)) on the surface of glass, the transverse electrode array and the longitudinal electrode array form capacitors with the ground respectively, and when a finger touches the capacitive screen, the capacitors of the finger are superposed on the capacitors of a screen body, so that the capacitors of the screen body are increased.
The mutual capacitance touch screen is formed by two metal or metal oxide materials in parallel electrode patterns. (either a layer or a different layer). Because the two electrodes are close to each other, a capacitor is formed. When a finger touches the corresponding electrode, the capacitance between the two electrodes changes.
Referring to fig. 1 to fig. 3, a touch display panel 100 according to an embodiment of the present invention includes:
a substrate 10;
a plurality of touch electrodes 30, the plurality of touch electrodes 30 being arranged in an array on one side of the substrate 10;
a plurality of touch signal lines 50, one touch signal line 50 electrically connected to one touch electrode 30;
the shielding layer 70 is disposed in a different layer from the touch electrodes 30 and located between the substrate 10 and the touch electrodes 30, the shielding layer 70 is disposed corresponding to at least a portion of the touch electrodes 30, and a hollow portion 71 is disposed at a position of the shielding layer 70 corresponding to at least the touch signal lines 50.
Alternatively, the substrate 10 may be a glass substrate, a substrate in which a Polyimide (PI) flexible substrate is deposited on a glass substrate, or the like.
Referring to fig. 3 and 4, optionally, in some embodiments, the substrate 10 includes a first end 11 and a second end 13 disposed opposite to each other.
Referring to fig. 3, optionally, in some embodiments, the touch electrode 30 and the touch signal line 50 are disposed on the same layer. Specifically, the touch electrode 30 and the touch signal line 50 are formed in the same process, and are obtained by patterning the same transparent conductive layer.
Referring to fig. 4, in other embodiments, the touch electrodes 30 and the touch signal lines 50 are disposed in different layers. The touch electrode 30 and the touch signal line 50 are formed in different processes, and the touch electrode 30 and the touch signal line 50 are electrically connected through a via hole.
The utility model discloses a touch-control display panel 100 passes through and sets up shielding layer 70 between base plate 10 and the touch-control electrode 30, the position that corresponds with many touch-control signal line 50 at least at shielding layer 70 is equipped with fretwork portion 71, it has avoided the breakpoint department of touch-control signal line 50 and touch-control electrode 30, produce great electric capacity between remaining touch-control signal line 50 of breakpoint and the shielding layer 70, can't the accurate phenomenon that detects out whether there is breakpoint and breakpoint place position between touch-control signal line 50 and touch-control electrode 30, improve the accuracy that touch-control display panel 100 signal connection yield detected.
Referring to fig. 3 again, in some embodiments, the touch signal lines 50 are divided into a plurality of groups, each group includes a plurality of adjacent touch signal lines 50, the number of the hollow portions 71 is multiple, and one hollow portion 71 is disposed corresponding to one group of the touch signal lines 50.
Optionally, in some implementations, the projection of each group of touch signal lines 50 on the substrate 10 does not overlap with the projection of the shielding layer 70 on the substrate 10. More specifically, the orthographic projection of each group of touch signal lines 50 on the substrate 10 is not overlapped with the orthographic projection of the shielding layer 70 on the substrate 10. When the projection of the touch signal line 50 on the substrate 10 is not overlapped with the projection of the shielding layer 70 on the substrate 10, the accuracy of the yield detection of the touch display panel 100 can be improved better.
Optionally, in some implementations, the number of each group of touch signal lines 50 gradually increases from the first end 11 of the substrate 10 to the second end 13 of the substrate 10, and the hollow portion 71 gradually increases from the first end 11 to the second end 13. In some embodiments, the hollowed-out portion 71 may be triangular. In other embodiments, when the arrangement of the touch signal lines 50 is changed, the shape of the hollow portion 71 is also changed accordingly, which is not specifically limited by the present invention.
Optionally, in some implementations, the touch electrodes 30 are divided into a plurality of groups, each group includes a plurality of touch electrodes 30 arranged at intervals along a first direction, each group of touch electrodes 30 corresponds to a group of touch signal lines 50, each touch signal line 50 is parallel to the first direction, and the first direction extends from the first end 11 to the second end 13 (as shown by an arrow a in fig. 3). That is, the touch electrodes 30 of each group of touch electrodes 30 are in one-to-one correspondence with the touch signal lines 50 of the group of touch signal lines 50 corresponding to the group of touch electrodes 30, and are electrically connected.
Optionally, in some implementations, the width of the touch electrode 30 along a second direction is gradually decreased from the first end 11 to the second end 13, and the second direction is perpendicular to the first direction (as shown by arrow B in fig. 3).
Optionally, in some implementations, the shielding layer 70 is a conductor layer. When the touch function is performed, the shielding layer 70 may be connected to the same electrical signal as the touch electrode 30, or the shielding layer 70 may be electrically connected to the touch electrode 30, so as to avoid interference of the display signal with the touch signal. In addition, can also avoid the interference that the display signal produced touch signal through other modes, the utility model discloses do not do specifically to this and restrict.
Optionally, in some implementations, the projection of the shielding layer 70 on the substrate 10 covers the projection of the plurality of touch electrodes 30 on the substrate 10.
Referring to fig. 1 again, the touch display panel 100 of the embodiment of the present application further includes a light emitting layer 20, and the light emitting layer 20 is located between the shielding layer 70 and the substrate 10.
The touch display panel 100 of the embodiment of the application further includes a driving circuit 40, and the driving circuit 40 is located between the substrate 10 and the light emitting layer 20 and electrically connected to the light emitting layer 20.
Referring to fig. 5, in some embodiments, the touch display panel 100 of the embodiment of the present application further includes a touch driving chip 60 and a display driving chip 80. The touch driving chip 60 is electrically connected to each touch signal line 50, and is configured to send a touch driving signal and receive a touch sensing signal. The display driving chip is electrically connected to the driving circuit 40 and the light emitting layer 20, and is used for receiving a display scanning signal, a display data signal, a cathode signal, and the like. Optionally, the touch driving chip 60 and the display driving chip 80 are both disposed near the second end 13 of the substrate 10.
Referring to fig. 6, an embodiment of the present invention further provides an electronic device 200, which includes:
a device main body 210; and
the utility model discloses touch-control display panel 100, touch-control display panel 100 set up on equipment main part 210 for realize showing and touch-control function.
The utility model discloses an equipment main part 210 includes but not limited to including display body, computer body, TV set body, panel computer body, cell-phone body, the electronic reader body, the intelligent wrist-watch body of taking the display screen, intelligent bracelet body, the player body of taking the display screen etc. have the equipment that shows the function.
The utility model discloses an electronic equipment 200 includes but is not limited to including the equipment that has the display function such as the player of display, computer, TV set, panel computer, cell-phone, electronic reader, the intelligent wrist-watch of taking the display screen, intelligent bracelet, area display screen.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A touch display panel, comprising:
the touch electrodes are arranged in an array;
a plurality of touch signal lines, one of the touch signal lines being electrically connected to one of the touch electrodes;
the shielding layer is arranged in a different layer with the touch control electrodes, the shielding layer corresponds to at least part of the touch control electrodes, and hollow parts are arranged at positions of the shielding layer corresponding to the touch control signal lines.
2. The touch display panel according to claim 1, wherein the touch signal lines are divided into a plurality of groups, each group includes a plurality of adjacent touch signal lines, and one of the hollow portions is disposed corresponding to one of the groups of touch signal lines.
3. The touch display panel according to claim 2, further comprising a substrate disposed on a side of the shielding layer facing away from the touch electrodes; the projection of each group of touch signal lines on the substrate is not overlapped with the projection of the shielding layer on the substrate.
4. The touch display panel according to claim 3, wherein the substrate includes a first end and a second end that are opposite to each other, the number of the touch signal lines in each group gradually increases from the first end to the second end, and the hollow portion gradually increases from the first end to the second end.
5. The touch display panel according to claim 4, wherein the touch electrodes are divided into a plurality of groups, each group includes a plurality of touch electrodes arranged at intervals along a first direction, each group of touch electrodes corresponds to a group of touch signal lines, each touch signal line is parallel to the first direction, and the first direction extends from the first end to the second end.
6. The touch display panel according to claim 5, wherein the width of the touch electrode in a second direction is gradually decreased from the first end to the second end, and the second direction is perpendicular to the first direction.
7. The touch display panel of claim 1, wherein the shielding layer is a conductive layer.
8. The touch display panel of claim 3, wherein the projection of the shielding layer on the substrate covers the projection of the touch electrodes on the substrate.
9. The touch display panel according to claim 1, further comprising a light-emitting layer on a side of the shielding layer facing away from the touch electrode.
10. An electronic device, characterized in that the electronic device comprises:
an apparatus main body; and
the touch display panel of any one of claims 1-9, the touch display panel disposed on the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974800.0U CN213122936U (en) | 2020-09-10 | 2020-09-10 | Touch display panel and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021974800.0U CN213122936U (en) | 2020-09-10 | 2020-09-10 | Touch display panel and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213122936U true CN213122936U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021974800.0U Expired - Fee Related CN213122936U (en) | 2020-09-10 | 2020-09-10 | Touch display panel and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213122936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113486623A (en) * | 2021-06-29 | 2021-10-08 | 合肥维信诺科技有限公司 | Breakpoint detection system and method of signal line and electronic device |
-
2020
- 2020-09-10 CN CN202021974800.0U patent/CN213122936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113486623A (en) * | 2021-06-29 | 2021-10-08 | 合肥维信诺科技有限公司 | Breakpoint detection system and method of signal line and electronic device |
| CN113486623B (en) * | 2021-06-29 | 2023-08-08 | 合肥维信诺科技有限公司 | Breakpoint detection system and method of signal line and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |