CN112650417B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN112650417B CN112650417B CN202110030333.9A CN202110030333A CN112650417B CN 112650417 B CN112650417 B CN 112650417B CN 202110030333 A CN202110030333 A CN 202110030333A CN 112650417 B CN112650417 B CN 112650417B
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
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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
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a touch display panel and a touch display device. The touch display panel comprises a display area and a non-display area located on one side of the display area, a plurality of binding units, a plurality of driving chips and a plurality of touch test units are arranged in the non-display area, each binding unit comprises at least one binding area, each driving chip corresponds to one binding area and is arranged and electrically connected with the corresponding binding area, and each touch test unit is adjacent to one binding unit and is electrically connected with the adjacent binding area in the binding unit. According to the invention, by arranging the plurality of binding units and the plurality of touch control test units and electrically connecting each touch control test unit with the binding area in the binding unit arranged adjacent to the touch control test unit, the wiring distance between the touch control test unit and the binding area can be shortened, the wiring span is reduced, the wiring difficulty is reduced, and the process production is facilitated.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
With the rapid development of the communication industry, people have increasingly greater demands on electronic products such as mobile phones, televisions, tablets, computers, digital cameras and the like, and various display devices are developing in a direction of larger size and being bendable. Currently, the touch function of a display panel with a medium size (8-20 inches) in the industry is realized by adopting a plug-in touch screen mode, namely, a touch layer is manufactured separately and then the touch layer and the display panel are assembled and installed. However, the external touch screen is too thick and not easy to fold, and is not suitable for a foldable middle-sized display panel. Touch circuits of DOT (Direct On-cell Touch, which directly prepares Touch circuits On a display panel) display panels are directly made On the display panels, have the characteristics of thin thickness and easy folding, and will become the mainstream of development of foldable middle-sized display panels.
The touch test circuits of the small-sized display panel in the prior art are distributed at two ends of the non-display area, the middle-sized display panel has a larger area and is provided with a plurality of driving chips, and if the touch test circuits of the small-sized display panel in the prior art are distributed in a distribution mode (distributed at two ends of the non-display area), the touch test circuits in the middle area have large span and too long length, and the cross-line design needs to be avoided, so that the difficulty of wiring and process production is greatly increased. Therefore, it is necessary to improve this defect.
Disclosure of Invention
The embodiment of the invention provides a touch display panel, which is used for solving the technical problems of wiring and high difficulty in process production of a touch test circuit of a middle-size display panel in the prior art.
The embodiment of the invention provides a touch display panel, which comprises a display area and a non-display area positioned on one side of the display area, wherein the non-display area is provided with a plurality of binding units, a plurality of driving chips and a plurality of touch test units, each binding unit comprises at least one binding area, each driving chip is arranged corresponding to and electrically connected with one binding area, and each touch test unit is arranged adjacent to one binding unit and electrically connected with the binding area in the binding unit.
In the touch display panel provided by the embodiment of the invention, each binding unit includes one binding region.
In the touch display panel provided by the embodiment of the invention, the touch test unit arranged adjacent to the binding unit includes a first touch test unit and a second touch test unit respectively located at two sides of the binding area.
In the touch display panel provided in the embodiment of the present invention, the touch test unit disposed adjacent to the binding unit includes only one third touch test unit.
In the touch display panel provided by the embodiment of the invention, each binding unit includes a plurality of binding regions.
In the touch display panel provided in the embodiment of the present invention, each of the touch test units includes two fourth touch test units and at least one fifth touch test unit located between the two fourth touch test units, where each of the fifth touch test units is electrically connected to two adjacent binding regions respectively.
In the touch display panel provided by the embodiment of the invention, the number of the test pins of the fourth touch test unit is one half of the number of the test pins of the fifth touch test unit.
In the touch display panel provided by the embodiment of the invention, the touch display panel further includes a conductive circuit, and the driving chip is electrically connected with the binding region through the conductive circuit.
In the touch display panel provided by the embodiment of the invention, the touch display panel further comprises a touch test circuit, and the touch test unit is electrically connected with the binding area through the touch test circuit.
The embodiment of the invention also provides a touch display device which comprises a back plate, the touch display panel positioned on the back plate, a polaroid positioned on the touch display panel and a cover plate positioned on the polaroid.
Has the advantages that: the embodiment of the invention provides a touch display panel, which comprises a plurality of binding units, a plurality of driving chips and a plurality of touch test units, wherein the binding units are positioned in a non-display area, each binding unit comprises at least one binding area, each driving chip is correspondingly arranged and electrically connected with one binding area, each touch test unit is arranged adjacent to one binding unit and electrically connected with the binding area in the binding unit.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic diagram of a basic structure of a touch display panel according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a basic structure of another touch display panel according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a basic structure of another touch display panel according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a basic structure of another touch display panel according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a basic structure of a touch display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the drawings, the size and thickness of components illustrated in the drawings are not to scale for clarity and ease of understanding and description.
As shown in fig. 1, a schematic diagram of a basic structure of a touch display panel provided in an embodiment of the present invention is provided, where the touch display panel includes a display area A1 and a non-display area A2 located on one side of the display area A1, and since the embodiment of the present invention mainly aims at improvement of the non-display area A2, a structure in the display area A1 is not a major point to be described in the embodiment of the present invention, and the display area A1 is not described in detail herein. A plurality of binding units 10, a plurality of driver chips 102 and a plurality of touch test units 103 are disposed in the non-display area A2, each binding unit 10 includes at least one binding area 101, each driver chip 102 is disposed corresponding to and electrically connected to one binding area 101, and each touch test unit 103 is disposed adjacent to one binding unit 10 and electrically connected to the binding area 101 in the binding unit 10.
The touch display panel further includes a conductive circuit 104 and a touch test circuit 105, the driver chip 102 is electrically connected to the bonding area 101 through the conductive circuit 104, and the touch test unit 103 is electrically connected to the bonding area 101 through the touch test circuit 105.
It should be noted that the Touch display panel provided in the embodiment of the present invention is a middle-sized (8-20 inches) DOT (Direct On-cell Touch, in which the Touch lines are directly prepared On the display panel), and since the middle-sized display panel has a larger area and includes a plurality of driving chips, if the Touch test units are disposed at two ends of the non-display area A2, the distance of the Touch test lines of the driving chips in the middle area is too long, the span is too large, and difficulty in wiring and process production is increased. In the embodiment of the invention, the plurality of binding units 10 and the plurality of touch control test units 103 are arranged in the non-display area A2, and each touch control test unit 103 is electrically connected with the binding area 101 in the binding unit 10 arranged adjacent to the touch control test unit 103, so that the routing distance between the touch control test unit 103 and the binding area 101 can be shortened, the routing span is reduced, the routing difficulty is reduced, and the process production is facilitated.
It can be understood that the touch test units 103 are respectively located in the left area, the middle area and the right area of the non-display area A2, and each touch test unit 103 is disposed adjacent to one of the binding units 10 and electrically connected to the binding area 101 in the binding unit 10 means: the touch test unit 103 located in the left area is electrically connected with the binding area 101 located in the binding unit 10 located in the left area, the touch test unit 103 located in the middle area is electrically connected with the binding area 101 located in the binding unit 10 located in the middle area, and the touch test unit 103 located in the right area is electrically connected with the binding area 101 located in the binding unit 10 located in the right area. That is, in the embodiment of the present invention, the non-display area A2 is divided into a plurality of test areas, and the touch test units 103 in different areas are electrically connected to the binding areas 101 in the same area, so that the routing distance between the touch test units 103 and the binding areas 101 can be reduced, the routing span can be reduced, and the routing difficulty can be reduced. Specifically, the total number of the test areas is determined by the number of the driver chips designed for a specific product, which is not limited in the present invention.
In an embodiment, each of the binding units 10 includes one binding region 101, and the touch test units 103 disposed adjacent to the binding unit 10 include a first touch test unit 1031 and a second touch test unit 1032 respectively located at two sides of the binding region 101. That is, the number of the touch test units 103 is twice the number of the bonding areas 101. The touch test circuit 105 includes a first test sub-circuit 1051 and a second test sub-circuit 1052, the first touch test unit 1031 is electrically connected to an adjacent one of the bonding areas 101 through the first test sub-circuit 1051, and the second touch test unit 1032 is electrically connected to an adjacent one of the bonding areas 101 through the second test sub-circuit 1052.
It can be understood that the first touch test unit 1031 and the second touch test unit 1032 are respectively disposed on two sides of one bonding region 101, that is, the conductive traces 104 correspondingly bonded to one bonding region 101 can be electrically connected to the first touch test unit 1031 and the second touch test unit 1032 through the first test sub-line 1051 and the second test sub-line 1052, respectively, so that the span of the touch test lines 105 can be reduced.
In one embodiment, the number of the first test sub-lines 1051 is equal to the number of the second test sub-lines 1052. It is understood that, for example, 2n conductive traces 104 are bound to one binding region 101 (n is an integer greater than 0), then n conductive traces 104 can be bound to the first touch test unit 1031 and n conductive traces 104 can be bound to the second touch test unit 1032, so that the total width of the touch test traces 105 can be reduced by half, i.e., the span of the touch test traces 105 can be reduced.
Next, referring to fig. 2, a basic structure diagram of another touch display panel according to an embodiment of the present invention is provided, where the touch display panel includes a display area A1 and a non-display area A2 located at one side of the display area A1, a plurality of binding units 10, a plurality of driver chips 102, and a plurality of touch test units 103 are disposed in the non-display area A2, each binding unit 10 includes at least one binding area 101, each driver chip 102 is disposed corresponding to and electrically connected to one binding area 101, and each touch test unit 103 is disposed adjacent to one binding unit 10 and electrically connected to the binding area 101 in the binding unit 10.
The touch display panel further includes a conductive circuit 104 and a touch test circuit 105, the driver chip 102 is electrically connected to the bonding area 101 through the conductive circuit 104, and the touch test unit 103 is electrically connected to the bonding area 101 through the touch test circuit 105.
In this embodiment, each of the binding units 10 includes one of the binding regions 101, and the touch test unit 103 disposed adjacent to the binding unit 10 includes only one third touch test unit 1033. It can be understood that each of the bonding regions 101 corresponds to one third touch test unit 1033, and compared with the touch display panel provided in fig. 1, the number of the touch test units 103 in this embodiment is less, the routing manner is simpler and more convenient, and although the routing span is not reduced, compared with the prior art, the routing distance is significantly reduced, the wiring difficulty can also be reduced, and the process production is facilitated.
Next, referring to fig. 3, a schematic basic structure diagram of another touch display panel according to an embodiment of the present invention is provided, where the touch display panel includes a display area A1 and a non-display area A2 located at one side of the display area A1, a plurality of binding units 10, a plurality of driver chips 102, and a plurality of touch test units 103 are disposed in the non-display area A2, each binding unit 10 includes at least one binding area 101, each driver chip 102 is disposed corresponding to and electrically connected to one binding area 101, and each touch test unit 103 is disposed adjacent to one binding unit 10 and electrically connected to the binding area 101 in the binding unit 10.
The touch display panel further includes a conductive circuit 104 and a touch test circuit 105, the driver chip 102 is electrically connected to the bonding area 101 through the conductive circuit 104, and the touch test unit 103 is electrically connected to the bonding area 101 through the touch test circuit 105.
In one embodiment, each of the plurality of binding units 10 includes a plurality of binding regions 101, and each of the touch test units 103 includes two fourth touch test units 1034 and at least one fifth touch test unit 1035 located between the two fourth touch test units 1034, wherein each of the fifth touch test units 1035 is electrically connected to two adjacent binding regions 101, respectively. This embodiment will be described in detail by taking an example that each binding unit 10 includes two binding regions 101.
It is understood that the two fourth touch test units 1034 correspond to two ends of the binding unit 10, and the fifth touch test unit 1035 is disposed at a middle lower portion between the two binding areas 101. That is, a part of the conductive traces 104 of the driver chips 102 at two ends of the bonding unit 10 are electrically connected to the fourth touch test unit 1034 through the bonding area 101, and another part of the conductive traces 104 of the driver chips 102 at two ends of the bonding unit 10 are electrically connected to the fifth touch test unit 1035 through the bonding area 101. Compared with the touch display panel in fig. 1 (the number of the touch test units is 2 times of the number of the binding areas), on the premise that the number of the binding areas is equal, the number of the touch test units 103 in this embodiment is smaller, and on the basis of reducing the routing distance, the number of the touch test units is also reduced, so that the cost is saved.
In one embodiment, the touch test circuit 105 includes a third test sub-circuit 1053 and a fourth test sub-circuit 1054, the fourth touch test unit 1034 is electrically connected to the adjacent one of the bonding areas 101 through the third test sub-circuit 1053, and the fifth touch test unit 1035 is electrically connected to the adjacent two of the bonding areas 101 through the fourth test sub-circuit 1054.
In one embodiment, the number of test pins of the fourth touch test unit 1034 is one-half of the number of test pins of the fifth touch test unit 1035. It is understood that, for example, 2n conductive traces 104 (n is an integer greater than 0) are bonded to one bonding region 101, then the n conductive traces 104 can be bonded to the fourth touch test unit 1034 and the n conductive traces 104 can be bonded to the fifth touch test unit 1035, so that the total width of the touch test traces 103 can be reduced by half, i.e., the span of the touch test traces 103 can be reduced.
In one embodiment, the number of test pins of the fourth touch test unit 1034 is equal to the number of test pins of the fifth touch test unit 1035. It is understood that, for example, 3n conductive traces 104 are bound to one binding region 101 (n is an integer greater than 0), then 2n conductive traces 104 may be bound to the fourth touch test unit 1034, and n conductive traces 104 may be bound to the fifth touch test unit 1035, so that the total width of the touch test circuit 103 may be reduced by one third, that is, the span of the touch test circuit 103 may also be reduced, and the fourth touch test unit 1034 and the fifth touch test unit 1035 may use test chips with the same specification, which may improve the uniformity of the product.
Next, referring to fig. 4, a basic structure diagram of another touch display panel provided in an embodiment of the present invention is shown, where the touch display panel includes a display area A1 and a non-display area A2 located at one side of the display area A1, a plurality of binding units 10, a plurality of driver chips 102 and a plurality of touch test units 103 are disposed in the non-display area A2, each binding unit 10 includes at least one binding area 101, each driver chip 102 is disposed corresponding to and electrically connected to one binding area 101, and each touch test unit 103 is disposed adjacent to one binding unit 10 and electrically connected to the binding area 101 in the binding unit 10.
The touch display panel further includes a conductive circuit 104 and a touch test circuit 105, the driver chip 102 is electrically connected to the bonding area 101 through the conductive circuit 104, and the touch test unit 103 is electrically connected to the bonding area 101 through the touch test circuit 105.
In this embodiment, each of the bonding units 10 includes three bonding areas 101, and each of the touch test units 103 includes two fourth touch test units 1034 and two fifth touch test units 1035 located between the two fourth touch test units 1034, wherein each of the fifth touch test units 1035 is electrically connected to two adjacent bonding areas 101, respectively.
It is understood that the two fourth touch test units 1034 are respectively disposed at two ends of the binding unit 10, and the two fifth touch test units 1035 are respectively disposed at the middle lower portion between the two binding regions 101. That is, a part of the conductive traces 104 of the driver chips 102 at the two ends of the bonding unit 10 are electrically connected to the fourth touch test unit 1034 through the bonding area 101, another part of the conductive traces 104 of the driver chips 102 at the two ends of the bonding unit 10 are electrically connected to the fifth touch test unit 1035 through the bonding area 101, and the conductive traces 104 of the driver chips 102 in the middle area of the bonding unit 10 are electrically connected to two different fifth touch test units 1035 through the bonding area 101. Compared with the touch display panel in fig. 1 (the number of the touch test units is 2 times of the number of the binding areas), on the premise that the number of the binding areas is equal, the number of the touch test units 103 in this embodiment is smaller, and on the basis of reducing the routing distance, the number of the touch test units is also reduced, so that the cost is saved.
Referring to fig. 5, a basic structure of a touch display device according to an embodiment of the present invention includes a back plate 100, a touch display panel 200 located on the back plate 100, a polarizer 300 located on the touch display panel 200, and a cover plate 400 located on the polarizer 300. The touch display device further includes a foam (not shown) and an iron frame (not shown) disposed below the back plate 100, and the cover plate 400 is attached to the polarizer 300 through an optical adhesive (not shown).
Please refer to fig. 1, fig. 2, fig. 3, and fig. 4 for a specific structure of the touch display panel 200, and the description thereof is omitted here for brevity.
In one embodiment, the touch display device is a side-display touch display device. The touch display device provided by the embodiment of the invention can be as follows: the medium-sized products or units with the display function such as tablet computers, notebook computers, digital cameras, navigators and the like.
In summary, the touch display panel provided in the embodiments of the present invention includes a plurality of binding units located in a non-display area, a plurality of driver chips, and a plurality of touch test units, each of the binding units includes at least one binding area, each of the driver chips is disposed corresponding to and electrically connected to one of the binding areas, and each of the touch test units is disposed adjacent to one of the binding units and electrically connected to the binding area in the binding unit.
The touch display panel and the touch display device provided by the embodiments of the invention are described in detail above. It should be understood that the exemplary embodiments described herein should be considered merely as illustrative, for facilitating the understanding of the method of the present invention and its core ideas, and not as limiting the present invention.
Claims (5)
1. A touch display panel comprises a display area and a non-display area positioned on one side of the display area, and is characterized in that the non-display area is provided with:
a plurality of binding units, each of the binding units including a plurality of binding regions;
each driving chip is arranged corresponding to one binding region and is electrically connected with the binding region;
the touch control test unit comprises a plurality of binding units, each binding unit is arranged adjacent to one of the plurality of touch control test units and is electrically connected with the binding area in the binding unit, each touch control test unit comprises two fourth touch control test units and at least one fifth touch control test unit positioned between the two fourth touch control test units, and each fifth touch control test unit is electrically connected with the adjacent two binding areas respectively.
2. The touch display panel of claim 1, wherein the number of test pins of the fourth touch test unit is one-half of the number of test pins of the fifth touch test unit.
3. The touch display panel of claim 1, further comprising a conductive trace, wherein the driver chip is electrically connected to the bonding area through the conductive trace.
4. The touch display panel of claim 1, further comprising a touch test circuit, wherein the touch test unit is electrically connected to the bonding area through the touch test circuit.
5. A touch display device comprising a back plate, the touch display panel of any one of claims 1 to 4 positioned over the back plate, a polarizer positioned over the touch display panel, and a cover plate positioned over the polarizer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110030333.9A CN112650417B (en) | 2021-01-11 | 2021-01-11 | Touch display panel and touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110030333.9A CN112650417B (en) | 2021-01-11 | 2021-01-11 | Touch display panel and touch display device |
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| CN112650417A CN112650417A (en) | 2021-04-13 |
| CN112650417B true CN112650417B (en) | 2023-02-24 |
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| CN115802834A (en) * | 2022-12-23 | 2023-03-14 | 京东方科技集团股份有限公司 | Display substrate and display device |
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| CN111129090A (en) * | 2019-12-18 | 2020-05-08 | 武汉华星光电半导体显示技术有限公司 | Display panel and test method thereof |
| CN111369895A (en) * | 2020-04-23 | 2020-07-03 | 上海中航光电子有限公司 | Display panel and display device |
| CN111796713A (en) * | 2020-06-17 | 2020-10-20 | 武汉华星光电技术有限公司 | Display panel |
| US10824261B1 (en) * | 2019-08-28 | 2020-11-03 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display module, detecting method for display module, and display device |
| CN112035013A (en) * | 2020-08-31 | 2020-12-04 | 京东方科技集团股份有限公司 | Touch panel, preparation method thereof and display device |
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| CN106370967B (en) * | 2016-09-12 | 2019-06-28 | 京东方科技集团股份有限公司 | A kind of touch-control structure, its test method, touch screen and display device |
| CN107861658B (en) * | 2017-11-29 | 2021-05-14 | 上海中航光电子有限公司 | Display panel and display device |
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| US10824261B1 (en) * | 2019-08-28 | 2020-11-03 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display module, detecting method for display module, and display device |
| CN111129090A (en) * | 2019-12-18 | 2020-05-08 | 武汉华星光电半导体显示技术有限公司 | Display panel and test method thereof |
| CN111369895A (en) * | 2020-04-23 | 2020-07-03 | 上海中航光电子有限公司 | Display panel and display device |
| CN111796713A (en) * | 2020-06-17 | 2020-10-20 | 武汉华星光电技术有限公司 | Display panel |
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