CN110888558B - Touch panel and touch device - Google Patents
Touch panel and touch device Download PDFInfo
- Publication number
- CN110888558B CN110888558B CN202010001040.3A CN202010001040A CN110888558B CN 110888558 B CN110888558 B CN 110888558B CN 202010001040 A CN202010001040 A CN 202010001040A CN 110888558 B CN110888558 B CN 110888558B
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- layer
- touch panel
- ground layer
- grounding
- grounding layer
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000005336 cracking Methods 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 173
- 239000007787 solid Substances 0.000 claims description 6
- 238000003698 laser cutting Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010897 surface acoustic wave method Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to a touch panel and a display device, wherein the touch panel comprises a substrate, a first grounding layer and a second grounding layer; the first grounding layer is arranged at the edge of the substrate; the second grounding layer is arranged on the first grounding layer; the first grounding layer or the second grounding layer comprises metal wires, and the first grounding layer and the second grounding layer are annular and are grounded. According to the touch panel, the first grounding layer is arranged at the edge of the substrate, the second grounding layer is arranged on the first grounding layer, and the first grounding layer and the second grounding layer are grounded, so that static electricity acting on the touch panel can be led out to the ground through the first grounding layer and the second grounding layer, the touch panel is prevented from being damaged by the static electricity, and the first grounding layer or the second grounding layer is provided with the metal wire, so that cracking of the grounding layer during cutting is avoided, and the antistatic effect of the grounding layer can be ensured.
Description
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a touch panel and a touch device.
Background
Along with the promotion of panel technology and popularization of electronic products, touch devices with operation interfaces arranged on panels are increasingly widely used, such as user interfaces of electronic products including mobile phones, media players, navigation systems, digital cameras, and the like. Touch devices are classified into four types of resistive, capacitive, optical, and surface acoustic wave types according to the sensing technology.
When a user uses the touch device, the user often needs to touch the panel with a finger in an operation mode, so that static electricity on the finger of the user is conducted to the surface of the panel, and further electronic components in the touch panel are damaged, such as screen defects, metal wires are dissolved, resistance values of the components are changed, oxide layers are damaged or broken down, and an electronic circuit or a controller with a microprocessor as a center is affected to perform false actions. Along with the trend of the touch panel toward narrower frames, the touch panel often omits an antistatic design, so that the touch device is damaged due to static electricity in the use process.
Disclosure of Invention
Based on this, it is necessary to omit the design of static electricity prevention for the touch panel, which results in the problem that the touch device is damaged due to static electricity during use, and to provide a touch panel and a touch device.
A touch panel, comprising:
a substrate;
the first grounding layer is arranged at the edge of the substrate; and
The second grounding layer is arranged on the first grounding layer;
the first grounding layer or the second grounding layer comprises metal wires, and the first grounding layer and the second grounding layer are annular and are grounded.
In one embodiment, the first ground layer comprises a metal line and the second ground layer comprises a metal layer.
In one embodiment, the first ground layer comprises a metal layer and the second ground layer comprises a metal line.
In one embodiment, the first ground layer comprises a metal line and the second ground layer comprises a metal layer and a metal line.
In one embodiment, the first ground layer includes a metal layer and a metal line, and the second ground layer includes a metal line.
In one embodiment, the widths of the first and second ground layers are greater than or equal to 0.2 millimeters.
In one embodiment, the metal lines have a diameter of 2 microns to 30 microns.
In one embodiment, the substrate includes a display region and a non-display region surrounding the display region; the touch panel further comprises a plurality of signal wires, the first grounding layer, the second grounding layer and the plurality of signal wires are arranged in the non-display area, and the distance between the signal wire with the minimum distance from the first grounding layer or the second grounding layer and the first grounding layer or the second grounding layer is larger than 0.1 millimeter.
In one embodiment, the method further comprises:
and the protective layer is arranged on the second grounding layer.
A touch device comprises the touch panel.
According to the touch panel and the display device, the first grounding layer is arranged at the edge of the substrate, the second grounding layer is arranged on the first grounding layer, and the first grounding layer and the second grounding layer are both annular and grounded, so that static electricity acting on the touch panel can be led out to the ground through the first grounding layer and the second grounding layer, the touch panel is prevented from being damaged by the static electricity, and the first grounding layer or the second grounding layer is provided with the metal wire, so that cracks are prevented from occurring in the grounding layer during cutting, and the antistatic effect of the grounding layer can be ensured.
Drawings
FIG. 1 is a schematic diagram of a touch device in an embodiment;
FIG. 2 is a top view of a touch panel according to an embodiment;
FIG. 3 is a cross-sectional view of a touch panel in an embodiment;
FIG. 4 is a top view of a touch panel in another embodiment;
FIG. 5 is a schematic diagram of a structure of a first ground layer and a second ground layer according to an embodiment;
fig. 6 is a schematic structural diagram of a first ground layer and a second ground layer in another embodiment;
fig. 7 is a schematic structural diagram of a first ground layer and a second ground layer in another embodiment;
FIG. 8 is a schematic diagram of a structure of a first ground layer and a second ground layer according to another embodiment;
FIG. 9 is a top view of a touch panel in another embodiment;
FIG. 10 is a schematic diagram of a structure of a tag body in an embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In the description of the present invention, the meaning of "several" means at least one, such as one, two, etc., unless specifically defined otherwise.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are based on the methods or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 4, the embodiment of the present application provides a touch device, which includes a touch panel 100 and a control module 200. The touch panel 100 includes a substrate 10, a first ground layer 20, a second ground layer 30, a plurality of signal lines 40, a tag 50, and a protective layer 60.
The first ground layer 20 is disposed at an edge of the substrate 10, and the second ground layer 30 is disposed on the first ground layer 20. The first ground layer 20 or the second ground layer 30 includes a metal line, and the first ground layer 20 and the second ground layer 30 are grounded.
The substrate 10 includes a display region 101 and a non-display region 102 surrounding the display region 101. The display area 101 is an area for sensing a touch operation of a user, and is also an area for displaying an image. The display area 101 has a conductive layer, which may be Indium Tin Oxide (ITO), metal MESH Film (MMF), nano silver wire (AgNW), carbon nanotube, conductive polymer, and the like, and the present embodiment may be MMF. The display area 101 includes scan lines arranged in a row direction and extending in a column direction and data lines arranged in a column direction and extending in a row direction. One end of each signal line 40 is electrically connected to the display area 101, that is, one end of each signal line 40 is connected to one scan line or one data line, and the other end is connected to the control module 200.
When the display area 101 is touched by a user, the display area 101 generates touch information, the touch information is transmitted to the control module 200 through the plurality of signal lines 40, static electricity on fingers of a human body is conducted to the touch panel 100 due to contact of the human body, the first grounding layer 20 and the second grounding layer 30 conduct the static electricity acting on the touch panel 100 to the ground, and interference of the static electricity on the display area 101, the signal lines 40 and the control module 200 is avoided, so that the integrity of information transmission between the control module 200 and the display area 101 is ensured. The control module 200 is further configured to transmit control signals to the display area 101 through the plurality of signal lines 40 to control display information of the display area 101.
As shown in fig. 2, the first ground layer 20 and the second ground layer 30 may be annular, that is, the first ground layer 20 and the second ground layer 30 are disposed around the edge of the substrate 10, and the first ground layer 20, the second ground layer 30 and the plurality of signal lines 40 are disposed on different layers, so that the plurality of signal lines 40 can extend out of the touch panel 100 and be connected to the control module 200 without contacting the first ground layer 20 and the second ground layer 30. The first ground layer 20, the second ground layer 30 and the plurality of signal lines 40 are disposed on the non-display area 102, and the edge of the substrate 10 is the edge of the non-display area 102. The plurality of signal lines 40 are located inside the first ground layer 20 and the second ground layer 30. The distance between the signal line 40 with the smallest distance from the first ground layer 20 or the second ground layer 30 and the first ground layer 20 or the second ground layer 30 is larger than 0.1 mm, i.e. the distance between the signal line 40 closest to the first ground layer 20 or the second ground layer 30 and the first ground layer 20 or the second ground layer 30 is larger than 0.1 mm, so that the first ground layer 20 and the second ground layer 30 can effectively prevent the electrostatic discharge effect.
Referring to fig. 5, in one embodiment, the first ground layer 20 includes a metal line, and the second ground layer 30 includes a metal layer. When the substrate 10 is cut by laser cutting, the refraction and refraction of the solid metal layer are easy to generate, so that the ground layer is easy to crack during cutting, and the metal wire is arranged in the first ground layer 20, so that the refraction and reflection can be reduced when the lower knife surface is the first ground layer 20 during cutting, and the crack of the ground layer during cutting is avoided.
Referring to fig. 6, in one embodiment, the first ground layer 20 includes a metal layer, and the second ground layer 30 includes a metal line. When the substrate 10 is cut by laser cutting, the refraction and refraction of the solid metal layer are easy to generate, so that the ground layer is easy to crack during cutting, and the metal wire is arranged in the second ground layer 30, so that the refraction and reflection can be reduced when the lower knife surface is the second ground layer 30 during cutting, and the crack of the ground layer during cutting is avoided.
Referring to fig. 7, in one embodiment, the first ground layer 20 includes metal lines, and the second ground layer 30 includes metal layers and metal lines. When the substrate 10 is cut by laser cutting, the refraction and refraction of the solid metal layer are easy to generate, so that the ground layer is easy to crack during cutting, and the metal wires are arranged in the second ground layer 30, so that the refraction and reflection can be reduced when the lower knife surface is the second ground layer 30 during cutting, and the crack of the ground layer during cutting is avoided.
Referring to fig. 8, in one embodiment, the first ground layer 20 includes a metal layer and a metal line, and the second ground layer 30 includes a metal line. When the substrate 10 is cut by laser cutting, the refraction and refraction of the solid metal layer are easy to generate, so that the ground layer is easy to crack during cutting, the metal wire is arranged in the first ground layer 20, and if the lower knife surface is the first ground layer 20 during cutting, the refraction and reflection can be reduced, and the crack of the ground layer during cutting is avoided.
The width of the first and second ground layers 20 and 30 is greater than or equal to 0.2 mm. The widths of the first ground layer 20 and the second ground layer 30 are greater than or equal to 0.2 mm, so that the first ground layer 20 and the second ground layer 30 can conduct static electricity acting on the touch panel 100 to the ground, and if the widths of the first ground layer 20 and the second ground layer 30 are too small, a phenomenon that static electricity cannot be conducted completely may occur.
The diameter of the metal wire is 2 to 30 microns. If the diameter of the metal wire is too small, a fusing phenomenon may occur, and if the diameter of the metal wire is too large, the width of the ground layer may be too large, which is not beneficial to the narrowing of the frame of the touch panel 100.
Referring to fig. 9, the tag 50 is disposed on the second ground layer 30. When the second ground layer 30 includes a metal wire, the tag 50 may be a solid metal structure. When the second ground layer 30 includes a metal layer, the tag body 50 may be a metal structure provided with through holes 51 of various shapes or a through hole 51 structure provided on the second ground layer 30. The marker 50 is used as a marker when the substrate 10 is cut or attached.
Referring to fig. 10, in an embodiment, the tag body 50 is substantially in a right triangle shape, and the tag body 50 is disposed at an annular chamfer of the second ground layer 30, where the tag body 50 can increase the width of the second ground layer 30 without affecting the distance between the second ground layer 30 and the signal line 40. The marking body 50 is also provided with a right-angle triangular through hole 51 and a rectangular through hole 51, the minimum size of the through hole 51 is equal to the cutting precision, and the width of the rectangular through hole 51 is 0.05 mm to 0.2 mm. In other embodiments, the marker body 50 may be provided with a through hole 51 having another shape, such as a circle.
The materials of the first ground layer 20, the second ground layer 30 and the tag body 50 may be silver, the material of the signal line 40 may be the same as or different from the material of the ground layer, and the material of the signal line 40 may be silver or copper or other transparent conductive material. Metallic silver may be generally disposed by printing and metallic copper may be disposed by etching.
In an embodiment, the protection layer 60 is disposed on the second ground layer 30, and the protection layer 60 covers the ground layer, and is used for protecting the ground layer from falling off and isolating the ground layer from other electronic components. The material of the protective layer 60 may be insulating ink or other insulating material.
The touch panel of this application sets up first stratum through at the base plate edge, sets up the second stratum on first stratum, and first stratum and second stratum all are annular and earth potential to first stratum and second stratum can derive the static that acts on touch panel to ground, avoid touch panel to receive the static damage, and first stratum or second stratum are provided with the metal wire, thereby avoid the stratum to appear the crackle when the cutting, can ensure the antistatic effect of stratum.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A touch panel, comprising:
a substrate;
the first grounding layer is arranged at the edge of the substrate; and
The second grounding layer is arranged on the first grounding layer, the first grounding layer and the second grounding layer are both annular and have a grounding potential, and the first grounding layer and the second grounding layer are both used for leading out static electricity acting on the touch panel;
one of the first ground layer and the second ground layer comprises a metal net film, the metal net film comprises metal wires, the other metal net film comprises a solid metal layer, and the first ground layer and the second ground layer are formed by laser cutting so as to reduce refraction and reflection and avoid cracking of the first ground layer and the second ground layer during cutting.
2. The touch panel of claim 1, wherein the first ground layer comprises a metal line and the second ground layer comprises a metal layer.
3. The touch panel of claim 1, wherein the first ground layer comprises a metal layer and the second ground layer comprises a metal line.
4. The touch panel of claim 1, wherein the first ground layer comprises a metal line and the second ground layer comprises a metal layer and a metal line.
5. The touch panel of claim 1, wherein the first ground layer comprises a metal layer and a metal line, and the second ground layer comprises a metal line.
6. The touch panel of claim 1, wherein the widths of the first and second ground layers are greater than or equal to 0.2 millimeters.
7. The touch panel of claim 1, wherein the metal lines have a diameter of 2 microns to 30 microns.
8. The touch panel of claim 1, wherein the substrate comprises a display region and a non-display region surrounding the display region; the touch panel further comprises a plurality of signal wires, the first grounding layer, the second grounding layer and the plurality of signal wires are arranged in the non-display area, and the distance between the signal wire with the minimum distance from the first grounding layer or the second grounding layer and the first grounding layer or the second grounding layer is larger than 0.1 millimeter.
9. The touch panel according to claim 1, further comprising:
and the protective layer is arranged on the second grounding layer.
10. A touch device comprising the touch panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001040.3A CN110888558B (en) | 2020-01-02 | 2020-01-02 | Touch panel and touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001040.3A CN110888558B (en) | 2020-01-02 | 2020-01-02 | Touch panel and touch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110888558A CN110888558A (en) | 2020-03-17 |
| CN110888558B true CN110888558B (en) | 2024-01-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010001040.3A Active CN110888558B (en) | 2020-01-02 | 2020-01-02 | Touch panel and touch device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110888558B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504841B (en) * | 2021-05-25 | 2024-02-27 | 昆山国显光电有限公司 | Touch display panel and touch display device |
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| Publication number | Publication date |
|---|---|
| CN110888558A (en) | 2020-03-17 |
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