CN112328120A - Touch panel and touch display device - Google Patents
Touch panel and touch display device Download PDFInfo
- Publication number
- CN112328120A CN112328120A CN202011348111.3A CN202011348111A CN112328120A CN 112328120 A CN112328120 A CN 112328120A CN 202011348111 A CN202011348111 A CN 202011348111A CN 112328120 A CN112328120 A CN 112328120A
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- touch
- metal layer
- touch metal
- lines
- metal
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- 239000002184 metal Substances 0.000 claims abstract description 119
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000012634 fragment Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 46
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
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Classifications
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- 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
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- 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 application discloses touch panel and touch display device, including first touch-control metal level and the second touch-control metal level that the stromatolite set up, be equipped with many touch-control metal lines on first touch-control metal level and the second touch-control metal level respectively, touch panel includes: the touch control metal wire is arranged on the first touch control metal layer in the frame area, and the touch control metal wire is arranged on the second touch control metal layer in the frame area at intervals. According to the technical scheme provided by the embodiment of the application, the touch metal wires on the two touch metal layers are arranged in a staggered mode, and the touch metal wires arranged on the first touch metal layer and the second touch metal layer are arranged at intervals, so that the distance between the touch metal wires on each touch metal layer is increased, and even if film fragments exist in the process of the preparation process of the external hanging type touch sensor, short circuit is not easy to occur, and the reduction of the bad occurrence rate of short circuit is facilitated.
Description
Technical Field
The present invention generally relates to a touch panel and a touch display device.
Background
In the process of an On Cell Touch Sensor (an external hanging type Touch Sensor) of the OLED, a low-temperature process is needed to meet the protection requirement of an OLED display device, and meanwhile, the difficulty of the On Cell Touch Sensor process is increased; the On Cell Touch Sensor process uses a low-temperature process, a film is easy to fall off between an inorganic layer and an organic layer in the process, the peripheral wiring distance is small in the On Cell Touch Sensor design, as shown in fig. 1, and particularly, a short circuit occurs in a peripheral wiring area with a small distance due to film scraps 4 after a metal layer is finished.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a touch panel and a touch display device.
In a first aspect, a touch panel is provided, which includes a first touch metal layer and a second touch metal layer stacked on each other, wherein a plurality of touch metal lines are respectively disposed on the first touch metal layer and the second touch metal layer,
the touch panel includes: a touch area and a frame area positioned at the periphery of the touch area,
the touch metal lines on the first touch metal layer in the frame area and the touch metal lines on the second touch metal layer in the frame area are arranged at intervals.
In a second aspect, a touch display device is provided, which includes the touch panel.
According to the technical scheme provided by the embodiment of the application, the touch metal wires on the two touch metal layers are arranged in a staggered mode, and the touch metal wires arranged on the first touch metal layer and the second touch metal layer are arranged at intervals, so that the distance between the touch metal wires on each touch metal layer is increased, and even if film fragments exist in the process of the preparation process of the external hanging type touch sensor, short circuit is not easy to occur, and the reduction of the bad occurrence rate of short circuit is facilitated.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a peripheral trace short circuit of a touch panel in the prior art;
FIG. 2 is a schematic diagram of a touch metal trace of the touch panel in this embodiment;
FIG. 3 is a top view of the peripheral trace of the touch panel in this embodiment;
FIG. 4 is a cross-sectional view of the peripheral trace of the touch panel in the present embodiment;
fig. 5 is a schematic diagram of poor peripheral wiring of the touch panel in the embodiment.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 3 and fig. 4, the present embodiment provides a touch panel, which includes a first touch metal layer 1 and a second touch metal layer 2 stacked together, wherein a plurality of touch metal lines 3 are respectively disposed on the first touch metal layer 1 and the second touch metal layer 2,
the touch panel includes: a touch area and a frame area positioned at the periphery of the touch area,
the touch metal lines 3 on the first touch metal layer 1 and the frame regions are arranged at intervals with the touch metal lines 3 on the second touch metal layer 2.
In order to implement a touch function on the touch panel, two types of metal traces are usually disposed, i.e., a transmitting signal line Tx and a receiving signal line Rx, as shown in fig. 2, a transmitting signal line and a receiving signal line are disposed in a touch area, i.e., an AA area in the figure, and the signal lines both have peripheral traces, i.e., a frame area extending to the periphery of the touch area; the touch panel comprises two layers of touch metal layers which are arranged in a laminated mode, and the touch signals are received and transmitted by arranging metal wiring on the two layers of touch metal layers. In this embodiment, the wiring manner of the touch metal lines in the frame area, that is, the peripheral wiring is changed, the touch metal lines on the two touch metal layers are respectively arranged at intervals, the touch metal lines on the two touch metal layers are arranged in a staggered manner, and the touch metal lines arranged on the first touch metal layer and the second touch metal layer are arranged at intervals, so that the distance between the touch metal lines on each touch metal layer is increased.
As shown in fig. 5, in the touch panel of the embodiment, even though the defect of film debris occurs in the manufacturing process, for example, in fig. 5, the debris 4 occurs on the second touch metal layer 2, the generation of the debris 4 does not cause a short circuit condition caused by the interconnection of two metal lines 3, and the short circuit condition does not occur because the distance between adjacent touch metal lines 3 on the second touch metal layer 2 is relatively long.
Further, the frame region is located on the touch metal line 3 on the first touch metal layer 1, and an orthographic projection on the second touch metal layer 2 is not overlapped with the touch metal line 3 on the second touch metal layer 2.
In this embodiment, in order to ensure the signal transmission effect of the touch metal lines on the two touch metal layers and prevent the upper and lower metal lines from being coupled when conducting, the touch metal lines on the first touch metal layer and the touch metal lines on the second touch metal layer are not provided with any overlapping positions, so as to ensure the signal transmission effect of the touch metal lines on the two touch metal layers. Certainly, if the upper metal wire and the lower metal wire are overlapped, the technology can ensure that the coupling phenomenon between the two metal wires can be eliminated, and the touch metal wires on the two touch metal layers can also be set into a mutually overlapped structure.
Furthermore, the frame region is located on the touch metal lines on the first touch metal layer, and the distance between the frame region and the touch metal lines on the second touch metal layer is 1-2 micrometers.
In this embodiment, in order to ensure signal transmission of the touch metal lines on the first touch metal layer and the second touch metal layer, a certain gap is formed between adjacent touch metal lines.
Furthermore, no electrical connection is arranged between the first touch metal layer and the second touch metal layer.
In this embodiment, the touch metal lines are disposed on the two touch metal layers, each touch metal line is a separate touch metal line, and the two touch metal layers are not connected to each other, so that the staggered arrangement mode in this embodiment can increase the distance between the peripheral wires of the same layer, which can be increased to 2.5-3 times of the original distance, and reduce the occurrence of short-circuit defect rate.
Furthermore, the touch metal lines on the frame area on one side are transmitting signal lines, and the touch metal lines on the frame area on the other side are receiving signal lines.
The distribution of the transmitting signal lines and the receiving signal lines is carried out according to actual requirements in the implementation, and the transmitting signal lines and the receiving signal lines can be distributed on two sides of the frame.
Furthermore, the intersection of the transmitting signal line and the receiving signal line in the touch area is connected with the transmitting signal line or the receiving signal line through a bridging line.
As shown in fig. 2, in order not to affect the touch function of the touch panel, the transmission signal line and the reception signal line in the touch area have an intersecting position 5, and are prepared in a jumper manner; and adopting a jumper wire to connect the transmitting signal wire or adopting the jumper wire to connect the receiving signal wire.
The embodiment also provides a touch display device, which comprises the touch panel.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A touch panel comprises a first touch metal layer and a second touch metal layer which are stacked, wherein a plurality of touch metal lines are respectively arranged on the first touch metal layer and the second touch metal layer,
the touch panel includes: a touch area and a frame area positioned at the periphery of the touch area,
the touch metal lines on the first touch metal layer in the frame area and the touch metal lines on the second touch metal layer in the frame area are arranged at intervals.
2. The touch panel of claim 1, wherein the border area is located on the touch metal line on the first touch metal layer, and an orthographic projection of the border area on the second touch metal layer is not overlapped with the touch metal line on the second touch metal layer.
3. The touch panel of claim 2, wherein the distance between the touch metal lines on the first touch metal layer in the border area and the touch metal lines on the second touch metal layer in the border area is 1-2 μm.
4. The touch panel of claim 1, wherein no electrical connection is provided between the first touch metal layer and the second touch metal layer.
5. The touch panel of claim 1, wherein the touch metal lines on one side of the frame area are transmission signal lines, and the touch metal lines on the other side of the frame area are reception signal lines.
6. The touch panel of claim 1, wherein the intersection of the transmission signal line and the reception signal line in the touch area is connected to the transmission signal line or the reception signal line through a bridge line.
7. A touch display device comprising the touch panel according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011348111.3A CN112328120B (en) | 2020-11-26 | 2020-11-26 | Touch panel and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011348111.3A CN112328120B (en) | 2020-11-26 | 2020-11-26 | Touch panel and touch display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112328120A true CN112328120A (en) | 2021-02-05 |
| CN112328120B CN112328120B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011348111.3A Active CN112328120B (en) | 2020-11-26 | 2020-11-26 | Touch panel and touch display device |
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| Country | Link |
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| CN (1) | CN112328120B (en) |
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2020
- 2020-11-26 CN CN202011348111.3A patent/CN112328120B/en active Active
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| US20180113364A1 (en) * | 2016-05-04 | 2018-04-26 | Wuhan China Star Optoelectronics Technology Co., Ltd. | In-cell touch liquid crystal panel and array substrate thereof |
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| Publication number | Publication date |
|---|---|
| CN112328120B (en) | 2024-03-15 |
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