CN106293257B - In-cell touch panel and its detection method - Google Patents
In-cell touch panel and its detection method Download PDFInfo
- Publication number
- CN106293257B CN106293257B CN201610884808.XA CN201610884808A CN106293257B CN 106293257 B CN106293257 B CN 106293257B CN 201610884808 A CN201610884808 A CN 201610884808A CN 106293257 B CN106293257 B CN 106293257B
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- touch
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- signal
- tft switch
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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
Abstract
The present invention provides a kind of In-cell touch panel and its detection method, touch panel includes display area and the peripheral region outside display area, multiple touch areas are equipped in display area, the touch-control lead for being connected to peripheral region is equipped in each touch area, it is equipped with touch-control TFT switch corresponding with each touch area, the first touch-control p-wire, the second touch-control p-wire, gate line and multiple signal TFT switches in peripheral region, the grid of the touch-control TFT switch and the grid of signal TFT switch are all connected with gate line.The present invention improves the manufacturing yield of the touch panel using In-cell touch technology；The grid of touch-control TFT switch of the present invention and the grid of signal TFT switch share same root gate line, can save the space on touch panel boundary.
Description
Technical field
The invention belongs to the technical field of touch panel detection more particularly to a kind of In-cell touch panel and its detections
Method.
Technical background
With the development of mobile terminal, the use scope of touch panel is more and more wider, and In-cell touch-control is newest at present
A kind of touch technology.In-cell touch panel is more frivolous, display is also more clear, but since the technology is by sensor function
It is integrated into TFT substrate, TFT yield is caused more to be difficult to control.
Fig. 1 show the structural schematic diagram of touch panel, multiple blocks 10 for touch-control is divided into pixel region, respectively
It should be guaranteed that the mutual independence in electrical property between block 10, each block 10 is connected to outside display area by a signal wire
On chip 20, pixel region two sides are driving circuits (GIP) 30.TFT panel is be easy to cause in process of production between block 10
Short circuit, at present for touch control unit detection method be mostly mould group completion after, what is detected in this stage is bad
Major part can not repair.
Summary of the invention
The purpose of the present invention is to provide one kind make undesirable touch-control block array manufacture section just it can be found that, and and
The In-cell touch panel and its detection method that Shi Jinhang is repaired.
The present invention provides a kind of In-cell touch panel comprising display area and the external zones outside display area
Domain is equipped with multiple touch areas in display area, is equipped with the touch-control lead for being connected to peripheral region in each touch area,
Peripheral region be equipped with touch-control TFT switch corresponding with each touch area, the first touch-control p-wire, the second touch-control p-wire,
Gate line and multiple signal TFT switches, the grid of the touch-control TFT switch and the grid of signal TFT switch are all connected with
Gate line.
Preferably, the first touch-control p-wire and the second touch-control p-wire, the leakage of touch-control TFT switch are additionally provided in peripheral region
Pole connects the first touch-control p-wire or the second touch-control p-wire, and the source electrode of touch-control TFT switch connects corresponding touch-control lead.
Preferably, the drain electrode of the touch-control TFT switch of even column connects the first touch-control p-wire, and the touch-control TFT of odd column is opened
The drain electrode that the drain electrode of pass connects the touch-control TFT switch of the second touch-control p-wire or even column connects the second touch-control p-wire, odd
The drain electrode of the touch-control TFT switch of ordered series of numbers connects the first touch-control p-wire.
Preferably, In-cell touch panel is equipped with criss-cross grid line and data line, passes through in each touch area
More data lines, wherein the gate line is arranged in parallel with the grid line.
Preferably, peripheral region is additionally provided with the first signal wire and second signal line, the source electrode connection of the signal TFT switch
The drain electrode of corresponding data line, signal TFT switch connects the first signal wire or second signal line.
Preferably, the drain electrode of the signal TFT switch of even column connects the first signal wire, the signal TFT switch of odd column
The drain electrode of the signal TFT switch of drain electrode connection second signal line or even column connects second signal line, the signal of odd column
The drain electrode of TFT switch connects the first signal wire.
Preferably, first signal wire and second signal line are arranged in parallel with the gate line.
Preferably, the quantity of signal TFT switch corresponding to each touch area and the data line by the touch area
Quantity it is identical.
The present invention provides a kind of detection method of In-cell touch panel, when detection, the branch of touch-control TFT switch control
It opens, the touch area as corresponding to the touch-control TFT switch is connected to by the first touch-control p-wire or the second touch-control p-wire
Feeler switch outside touch panel；Under normal displaying mode, which is in normal status.
In-cell touch panel of the present invention is for short between detecting touch panel mac function in arraying bread board manufacturing process
Road situation so that undesirable touch-control block array manufacture section just it can be found that, and repaired, improved using In- in time
The manufacturing yield of the touch panel of cell touch technology；The grid of touch-control TFT switch of the present invention and the grid of signal TFT switch are total
With same root gate line, the space on touch panel boundary can be saved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing In-cell touch panel；
Fig. 2 is the structural schematic diagram of In-cell touch panel of the present invention；
Fig. 3 is the partial schematic diagram of In-cell touch panel shown in Fig. 2.
Specific embodiment
In-cell touch panel of the present invention, as shown in Figures 2 and 3, this touch panel 100 are equipped with criss-cross grid
Line and data line, this touch panel 100 is equipped with the display area AA and the peripheral region positioned at the display area AA, in the display area AA
It is interior to be equipped with multiple touch areas (touch panel is divided into 16 touch areas by Fig. 2 signal), in addition to coupling between each touch area
It closes touch area mutually independent in electrical property outside signal, adjacent to be identified using different types of signal, each Touch Zone
Domain is connected on the driving IC outside the display area AA by a touch-control lead.
Assuming that being equipped with the first touch area 11 in multiple touch areas and being disposed adjacent with first touch area 11
Second touch area 12, the first touch area 11 by first detection signal line 21 short circuit and open circuit connection come confirm this first
Whether have short circuit inside touch area 11, the second touch area 12 by the short circuit and open circuit connection of the second signal lines 22 come
Confirm inside second touch area 12 whether there is short circuit.
Wherein, the quantity of touch area 1 and wherein the quantity of signal wire, distribution situations such as be signal, this present invention
It is intended to illustrate using schematic diagram that design principle, interest field are not limited to its form.
In the present embodiment, every row is set equipped with 4 touch areas, from top to bottom respectively touch area 1, Touch Zone
Domain 22, touch area 33 and touch area 44.
It is illustrated in figure 3 the electrical block diagram close to a touch area 1 in outermost region, it should shown in Fig. 3
By 8 data lines in touch area 1, it is respectively as follows: the first data line 31, the second data line 32, the number of third data line the 33, the 4th
According to line 34, the 5th data line 35, the 6th data line 37, the 7th data line 37 and the 8th data line 38.
Since every row is equipped with 4 touch areas, which is a nethermost touch area, therefore passing through should
One 1 surface of touch area is equipped with 4 touch-control leads, which is respectively as follows: the first touching connecting with touch area 1
Control lead 41, connect with touch area 22 the second touch-control lead 42, connect with touch area 33 third touch-control lead 43,
And the 4th touch-control lead 44 being connect with touch area 44.
The first signal wire 51, second signal line 53, gate line 52 and multiple signal TFT are equipped in peripheral region
Switch 61, the grid line in the display area gate line 52 and AA are arranged in parallel, the first signal wire 51 and second signal line 53
It is arranged in parallel with the gate line 52.
The quantity phase of the quantity of signal TFT switch corresponding to each touch area and the data line by the touch area
Together, in the present embodiment, the corresponding 8 test switch TFT in touch area 1.
The grid of signal TFT switch 61 connects gate line 52, and the source electrode of signal TFT switch 61 connects corresponding data
The drain electrode of line, signal TFT switch 61 connects the first signal wire 51 or second signal line 52.
The drain electrode of the signal TFT switch 61 of even column connects the first signal wire 51, the leakage of the signal TFT switch 61 of odd column
The drain electrode that pole connects the signal TFT switch 61 of second signal line 53 or even column connects second signal line 53, the letter of odd column
The drain electrode of number TFT switch 61 connects the first signal wire 51.
In the present invention, increase the first touch-control p-wire 71, the second touch-control p-wire 72 and with each touch area pair
The touch-control TFT switch 81 answered, the first touch-control p-wire 71 and the second touch-control p-wire 72 are laterally arranged and and grid signal
Line 52 is arranged in parallel.
The grid of touch-control TFT switch 81 connects gate line 52, and the drain electrode of touch-control TFT switch 81 connects the first touch-control and surveys
Line 71 or the second touch-control p-wire 72 are tried, the source electrode of touch-control TFT switch 81 connects corresponding touch-control lead.
The drain electrode of the touch-control TFT switch 81 of even column connects the first touch-control p-wire 71, the touch-control TFT switch 81 of odd column
The drain electrode of the drain electrode touch-control TFT switch 81 that connects the second touch-control p-wire 72 or even column connect the second touch-control p-wire
72, the drain electrode of the touch-control TFT switch 81 of odd column connects the first touch-control p-wire 71.
The detection method of this In-cell touch panel, the branch that touch-control TFT switch 81 controls are opened, are opened by touch-control TFT
Touch area corresponding to closing 81 is connected to outside touch panel by the first touch-control p-wire 71 or the second touch-control p-wire 72
Feeler switch.Under normal displaying mode, which is in normal status, does not influence touch panel and shows.
In-cell touch panel of the present invention is for short between detecting touch panel mac function in arraying bread board manufacturing process
Road situation so that undesirable touch-control block array manufacture section just it can be found that, and repaired, improved using In- in time
The manufacturing yield of the touch panel of cell touch technology；The grid of touch-control TFT switch of the present invention and the grid of signal TFT switch are total
With same root gate line, the space on touch panel boundary can be saved.
The preferred embodiment of the present invention has been described above in detail, but during present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical solution of the present invention within the scope of the technical concept of the present invention, these
Equivalents all belong to the scope of protection of the present invention.
Claims (9)
1. a kind of In-cell touch panel comprising display area and the peripheral region outside display area, in display area
It is interior to be equipped with multiple touch areas, the touch-control lead for being connected to peripheral region is equipped in each touch area, which is characterized in that
Peripheral region is equipped with touch-control TFT switch corresponding with each touch area, the first touch-control p-wire, the second touch-control p-wire, grid
Pole signal wire and multiple signal TFT switches, the grid of the touch-control TFT switch and the grid of signal TFT switch are all connected with grid
Pole signal wire.
2. In-cell touch panel according to claim 1, it is characterised in that: be additionally provided with the first touch-control in peripheral region
P-wire and the second touch-control p-wire, the drain electrode of touch-control TFT switch connect the first touch-control p-wire or the second touch-control p-wire, touching
The source electrode for controlling TFT switch connects corresponding touch-control lead.
3. In-cell touch panel according to claim 1 or 2, it is characterised in that: the touch-control TFT switch of even column
Drain electrode the first touch-control p-wire of connection, the drain electrode of the touch-control TFT switch of odd column connect the second touch-control p-wire or even column
The drain electrode of touch-control TFT switch connect the second touch-control p-wire, the drain electrode of the touch-control TFT switch of odd column connects the first touch-control and surveys
Try line.
4. In-cell touch panel according to claim 1 or 2, it is characterised in that: In-cell touch panel is equipped with vertical
Horizontal staggered grid line and data line pass through more data lines in each touch area, wherein the gate line with it is described
Grid line is arranged in parallel.
5. In-cell touch panel according to claim 3, it is characterised in that: peripheral region is additionally provided with the first signal wire
With second signal line, the source electrode of the signal TFT switch connects corresponding data line, the drain electrode connection first of signal TFT switch
Signal wire or second signal line.
6. In-cell touch panel according to claim 5, it is characterised in that: the drain electrode of the signal TFT switch of even column
The first signal wire is connected, the drain electrode connection second signal line of the signal TFT switch of odd column or the signal TFT of even column are opened
The drain electrode of pass connects second signal line, and the drain electrode of the signal TFT switch of odd column connects the first signal wire.
7. In-cell touch panel according to claim 5 or 6, it is characterised in that: first signal wire and the second letter
Number line is arranged in parallel with the gate line.
8. In-cell touch panel according to claim 5 or 6, it is characterised in that: letter corresponding to each touch area
The quantity of number TFT switch is identical as by the quantity of data line of the touch area.
9. the detection method of any In-cell touch panel of claim 1-, which is characterized in that when detection, touch-control TFT is opened
The branch for closing control is opened, and the touch area as corresponding to the touch-control TFT switch passes through the first touch-control p-wire or the second touch-control
P-wire is connected to the feeler switch outside touch panel；Under normal displaying mode, which is in normal status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884808.XA CN106293257B (en) | 2016-10-10 | 2016-10-10 | In-cell touch panel and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884808.XA CN106293257B (en) | 2016-10-10 | 2016-10-10 | In-cell touch panel and its detection method |
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| Publication Number | Publication Date |
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| CN106293257A CN106293257A (en) | 2017-01-04 |
| CN106293257B true CN106293257B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610884808.XA Active CN106293257B (en) | 2016-10-10 | 2016-10-10 | In-cell touch panel and its detection method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20210086283A (en) * | 2019-12-31 | 2021-07-08 | 엘지디스플레이 주식회사 | In-cell Touch Organic Light Emitting Diode Display Device and Testing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122913A (en) * | 2006-11-09 | 2008-05-29 | Samsung Electronics Co Ltd | Liquid crystal display with integrated touch panel |
| CN103902120A (en) * | 2012-12-27 | 2014-07-02 | 乐金显示有限公司 | Touch sensor integrated type display device |
| CN104793419A (en) * | 2015-05-08 | 2015-07-22 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN105335003A (en) * | 2015-10-10 | 2016-02-17 | 深圳市华星光电技术有限公司 | Touch control display panel and touch control circuit thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120013593A1 (en) * | 2009-03-17 | 2012-01-19 | Sharp Kabushiki Kaisha | Display device |
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- 2016-10-10 CN CN201610884808.XA patent/CN106293257B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008122913A (en) * | 2006-11-09 | 2008-05-29 | Samsung Electronics Co Ltd | Liquid crystal display with integrated touch panel |
| CN103902120A (en) * | 2012-12-27 | 2014-07-02 | 乐金显示有限公司 | Touch sensor integrated type display device |
| CN104793419A (en) * | 2015-05-08 | 2015-07-22 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN105335003A (en) * | 2015-10-10 | 2016-02-17 | 深圳市华星光电技术有限公司 | Touch control display panel and touch control circuit thereof |
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| CN106293257A (en) | 2017-01-04 |
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