CN102841708A - Touch control display panel - Google Patents
Touch control display panel Download PDFInfo
- Publication number
- CN102841708A CN102841708A CN2012102735906A CN201210273590A CN102841708A CN 102841708 A CN102841708 A CN 102841708A CN 2012102735906 A CN2012102735906 A CN 2012102735906A CN 201210273590 A CN201210273590 A CN 201210273590A CN 102841708 A CN102841708 A CN 102841708A
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- display panel
- circuit board
- touch
- flexible circuit
- discharge current
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- 230000003068 static effect Effects 0.000 claims description 41
- 238000010586 diagram Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Elimination Of Static Electricity (AREA)
Abstract
The invention relates to a touch display panel, which comprises a display panel, a touch panel, a circuit board, a first flexible circuit board and a second flexible circuit board. The touch panel is located on one side of the display panel. The circuit board is arranged between the display panel and the touch panel. The first flexible circuit board is connected between the touch panel and the circuit board. The second flexible circuit board is connected between the circuit board and the display panel, wherein an electrostatic discharge current generated on the touch panel is conducted to the circuit board through the first flexible circuit board and then is dredged to the display panel through the second flexible circuit board. Accordingly, the touch display panel has the function of dredging the electrostatic discharge current.
Description
Technical field
The invention relates to a kind of touch-control display panel, and particularly relevant for a kind of touch-control display panel of dredging static discharge current (Electrostatic Discharge Current).
Background technology
In recent years; Fast development and application along with information technology, wireless mobile communication and information household electrical appliances; More facility, volume are more lightly changed and more humane purpose in order to reach; Many electronics information products, for example be mobile phone (Mobile Phone), palmtop computer (Handheld PC), individualized digital assistants (Personal Digital Assistance, PDA) or Smartphone (Smart Phone) etc.; Its input mode changes into and uses contact panel (Touch Panel) as input media by devices such as traditional keyboard or mouses.Because the intuitive of convenience and operation, contact panel becomes extremely welcome new kenel man-machine interface and multimedia interaction mode, and receives suitable attention and mass development, wherein the most popular more now product of touch-control display panel.
Contact panel is according to the difference of its structure and manufacture; Can divide into integrated (On-Cell), in-building type (In-Cell) and external labeling type (Added-on) haply; Wherein integrated and in-building type contact panel is that touch controllable function is integrated in the panel procedure for producing, helps to dwindle the thickness of integral product, to meet the lightening trend of product; And the external labeling type contact panel is to attach after contact panel and display panel are separated making again, to simplify the step of single processing procedure.
User's touch-control instrument capable of using for example pointer dubs contact panel, or directly utilizes the finger touches contact panel, and carrying out the operation of touch-control display panel, and operating result can manifest through display panel.When the user operates touch-control display panel, touch-control instrument or user's finger can rub with contact panel, thereby on contact panel, produce static discharge (Electrostatic Discharge Current, ESD).Because static discharge voltage goes out many greatly than the general power source voltage that provides; When static discharge occurs in the specific region on the contact panel; The electric current of this static discharge may burn the element on the contact panel, and causes the function of contact panel to be affected even produce damage.
Summary of the invention
The present invention provides a kind of touch-control display panel, has the function of mediation static discharge current.
The present invention proposes a kind of touch-control display panel, comprises a display panel, a contact panel, a circuit board, one first flexible circuit board and one second flexible circuit board.Contact panel is positioned at a side of display panel.Circuit board is arranged between display panel and the contact panel.First flexible circuit board is connected between contact panel and the circuit board.Second flexible circuit board is connected between circuit board and the display panel, and a static discharge current that is wherein produced on the contact panel conducts to circuit board through first flexible circuit board, dredges to display panel via second flexible circuit board again.
Based on above-mentioned, the touch-control display panel that the present invention proposes can conduct to circuit board via first flexible circuit board with the static discharge current that is produced on the contact panel, dredges to display panel via second flexible circuit board again.In view of the above, touch-control display panel has the function of mediation static discharge current.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended graphic elaborating as follows.
Description of drawings
Fig. 1 is the synoptic diagram of the touch-control display panel of one embodiment of the invention;
Fig. 2 is that the touch-control display panel of Fig. 1 is in the synoptic diagram at display panel place;
Fig. 3 is that the touch-control display panel of another embodiment of the present invention is in the synoptic diagram at display panel place.
Wherein, Reference numeral:
100: touch-control display panel
110: display panel
112: the common voltage line
114: dot structure
116,124: signal wire
120: contact panel
122: the electrostatic defending ring
126: the connection pad electrode
130: circuit board
140: the first flexible circuit boards
150: the second flexible circuit boards
160: the first connection pad electrodes
170: the second connection pad electrodes
180: on-off element
C: control device
DR: drive unit
E: static discharge current
PE: pixel electrode
R1: viewing area
R2: non-display area
R3: Touch Zone
R4: non-Touch Zone
T: active member
Embodiment
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Fig. 1 is the synoptic diagram of the touch-control display panel of one embodiment of the invention.Please refer to Fig. 1.In the present embodiment, touch-control display panel 100 comprises display panel 110, contact panel 120, circuit board 130, first flexible circuit board 140 and second flexible circuit board 150.Graphic comparatively clear for making, Fig. 1 opened display panel 110 and contact panel in 120 minutes and illustrates.In the present embodiment, contact panel 120 is positioned at a side of display panel 110 and conforms to display panel 110.Circuit board 130 is arranged between display panel 110 and the contact panel 120.
In detail, please refer to Fig. 1 and Fig. 2.Fig. 2 is that the touch-control display panel of Fig. 1 is in the synoptic diagram at display panel place.In the present embodiment, display panel 110 has viewing area R1 and non-display area R2.The many signal line 116 that have a plurality of dot structures 114 among the viewing area R1 of display panel 110 and electrically connect with dot structure 114, as shown in Figure 2, and display panel 110 can be by these dot structure 114 and these signal wire 116 show images.At present embodiment, above-mentioned signal wire 116 comprises sweep trace and data line, and each dot structure 114 electrically connects with a corresponding sweep trace and a corresponding data line.In addition, dot structure 114 comprises active member T and the pixel electrode PE that electrically connects with active member T, and above-mentioned signal wire 116 extends among the non-display area R2 to electrically connect with drive unit DR from viewing area R1.
In the present embodiment, has common voltage line 112 among the non-display area R2 of display panel 110.Common voltage line 112 is around the R1 of viewing area.Said common voltage line 112 can provide the dot structure 114 among the R1 of viewing area required common voltage.For instance, the capacitance electrode line in the dot structure 114 can electrically connect said common voltage line 112, so that the voltage on the common voltage line 112 can be passed to the capacitance electrode line of each dot structure 114.
In addition, in the present embodiment, have drive unit DR, a plurality of first connection pad electrode 160 and at least one second connection pad electrode 170 among the non-display area R2 of display panel 110.Drive unit DR and signal wire 116 electrically connect, and the first connection pad electrode 160 electrically connects with drive unit DR, and the second connection pad electrode 170 electrically connects with pressure-wire 112 together.The first above-mentioned connection pad electrode 160 and the second connection pad electrode 170 and first flexible circuit board 150 electrically connect (as shown in Figure 1).
On the other hand, please refer to Fig. 1, contact panel 120 has Touch Zone R3 and non-Touch Zone R4.Have touch control component layer (not illustrating) among the Touch Zone R3 of contact panel 120, above-mentioned touch control component layer can comprise by capacitive touch control elements or electric resistance touch-control element.Above-mentioned touch control component layer electrically connects with many signal line 124 and corresponding connection pad electrode 126, so that the touching signals of touch control component layer can spread out of.In addition, above-mentioned the connection pad electrode 126 and first flexible circuit board 140 electrically connect.According to present embodiment, said contact panel 120 more comprises control device C, and it is electrically connected between contact panel 120 and this first flexible circuit board 140.In other words, when the user touches contact panel 120 so that touch control component layer when producing induction, touching signals can be passed to control device C through signal wire 124 and connection pad electrode 126, to calculate position of touch.
In addition, has electrostatic defending ring 122 among the non-Touch Zone R4 of contact panel 120.Electrostatic defending ring 122 is around the R3 of Touch Zone.When contact panel 120 produces static discharge current E, but static discharge current E conducting causes damage to avoid static discharge current E to the element in the contact panel 120 to electrostatic defending ring 122.
Hold the above, first flexible circuit board 140 is connected between contact panel 120 and the circuit board 130, and second flexible circuit board 150 is connected between circuit board 130 and the display panel 110.Therefore; When producing static discharge current E on the contact panel 120; Static discharge current E on the electrostatic defending ring 122 can conduct to circuit board 130 via first flexible circuit board 140; Dredge to display panel 110 via second flexible circuit board 150 again, contact panel 120 is damaged to avoid static discharge current E to assemble.More detailed explanation is; Static discharge current E on the electrostatic defending ring 122 conducts to circuit board 130 through first flexible circuit board 140, control device C, dredges to the common voltage line 112 of display panel 110 via second flexible circuit board 150 and the second connection pad electrode 170 again.
Because the static discharge current E on the contact panel 120 can conduct to circuit board 130 through electrostatic defending ring 122, first flexible circuit board 140; Conduct to the second connection pad electrode 170 via second flexible circuit board 150 again; Therefore can make static discharge current E to dredge to the common voltage line 112 of display panel 110, contact panel 120 damaged to avoid static discharge current E to assemble via the second connection pad electrode 170.
Fig. 3 is that the touch-control display panel of another embodiment of the present invention is in the synoptic diagram at display panel place.Please refer to Fig. 3, in another embodiment of the present invention, display panel 110 has on-off element 180.On-off element 180 is electrically connected at the second connection pad electrode 170 and uses together between the pressure-wire 112.In the present embodiment, on-off element 180 is transistor (Transistor) element, but in other embodiment of the present invention, on-off element 180 can be diode (Diode) element or other suitable elements, and the present invention is not as restriction.On-off element 180 can be set the critical current amount of starting switch.On-off element 180 is arranged at the second connection pad electrode 170 uses together between the pressure-wire 112, whether may command static discharge current E dredges to common voltage line 112 via the second connection pad electrode 170.
In other words; When the static discharge current E on the contact panel 120 conducts to the second connection pad electrode 170; If the magnitude of current of static discharge current E can't starting switch element 180 less than the critical current amount of on-off element 180, then static discharge current E can not pass through on-off element 180.Relatively; When the static discharge current E on the contact panel 120 conducts to the second connection pad electrode 170; If the magnitude of current of static discharge current E is starting switch element 180 greater than the critical current amount of on-off element 180, then static discharge current E dredges to common voltage line 112 through on-off element 180.
Therefore; The critical current amount of static discharge current E starting switch element 180; Can be set at and be no more than the magnitude of current that meeting damages contact panel 120; Make static discharge current E before the magnitude of current is even as big as destruction contact panel 120, can dredge to the common voltage line 112 of display panel 110 from contact panel 120.
In view of the above; Static discharge current E on the contact panel 120 can be via electrostatic defending ring 122, first flexible circuit board 140, control device C and is conducted to circuit board 130, again via second flexible circuit board 150 and the second connection pad electrode 170 and conduct to on-off element 180.If on-off element 180 is activated, then static discharge current E can dredge the common voltage line 112 to the display panel 110, to avoid static discharge current E to assemble contact panel 120 is damaged.
On the other hand, in other embodiment of the present invention, display panel 110 can only have an on-off element 180 or have a plurality of on-off elements 180, uses together between the pressure-wire 112 and on-off element 180 is electrically connected at the second connection pad electrode 170.By the quantity of adjustment on-off element 180, can set static discharge current E and dredge critical current amount to common voltage line 112.Yet in other embodiment of the present invention, display panel 110 also can not be provided with on-off element 180, makes the static discharge current E that produces on the contact panel 120 to dredge to common voltage line 112 via the second connection pad electrode 170 at any time.The present invention does not limit the quantity of on-off element 180 and whether is provided with.
In sum, the present invention proposes a kind of touch-control display panel, and its contact panel, first flexible circuit board, circuit board, second flexible circuit board and display panel electrically connect in regular turn.Have the electrostatic defending ring on the contact panel, have the common voltage line on the display panel, and the second connection pad electrode on common voltage line and the display panel electrically connects.Therefore; The static discharge current that is produced on the contact panel can be focused to the electrostatic defending ring earlier; And conduct to circuit board via first flexible circuit board, conduct to second flexible circuit board again and dredge common voltage line to display panel via the second connection pad electrode.In view of the above, touch-control display panel has the function of mediation static discharge current, to avoid static discharge current contact panel is damaged.
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under any; Do not breaking away from the spirit and scope of the present invention, when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (8)
1. a touch-control display panel is characterized in that, comprising:
One display panel;
One contact panel is positioned at a side of this display panel;
One circuit board is arranged between this display panel and this contact panel;
One first flexible circuit board is connected between this contact panel and this circuit board; And
One second flexible circuit board; Be connected between this circuit board and this display panel; A static discharge current that is wherein produced on this contact panel conducts to this circuit board through this first flexible circuit board, dredges to this display panel via this second flexible circuit board again.
2. touch-control display panel according to claim 1; It is characterized in that; This display panel has a viewing area and a non-display area, have in this non-display area of this display panel and use pressure-wire altogether, and this static discharge current mediation is to this common voltage line of this display panel.
3. touch-control display panel according to claim 2 is characterized in that, this common voltage line is around this viewing area.
4. touch-control display panel according to claim 2 is characterized in that, the many signal line that have a plurality of dot structures in this viewing area of this display panel and electrically connect with said dot structure.
5. touch-control display panel according to claim 4; It is characterized in that; Have a drive unit, a plurality of first connection pad electrode and at least one second connection pad electrode in this non-display area of this display panel, this drive unit and said signal wire electrically connect, and the said first connection pad electrode and this drive unit electrically connect; This second connection pad electrode and this common voltage line electrically connect, and this static discharge current is dredged to this common voltage line of this display panel via this second connection pad electrode.
6. touch-control display panel according to claim 5 is characterized in that this display panel more comprises at least one on-off element, is electrically connected between this second connection pad electrode and this common voltage line.
7. touch-control display panel according to claim 6 is characterized in that, this on-off element comprises a diode element or a transistor unit.
8. touch-control display panel according to claim 1; It is characterized in that; This contact panel more comprises a control device; It is electrically connected between this contact panel and this first flexible circuit board, and this static discharge current is dredged to this display panel via this second flexible circuit board through this control device, this first flexible circuit board and conduct to this circuit board again.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101115792A TWI448228B (en) | 2012-05-03 | 2012-05-03 | Touch display panel |
| TW101115792 | 2012-05-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102841708A true CN102841708A (en) | 2012-12-26 |
| CN102841708B CN102841708B (en) | 2015-12-09 |
Family
ID=47369135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210273590.6A Active CN102841708B (en) | 2012-05-03 | 2012-08-02 | Touch control display panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102841708B (en) |
| TW (1) | TWI448228B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133580A (en) * | 2013-04-30 | 2014-11-05 | 群创光电股份有限公司 | touch control display device |
| CN104656978A (en) * | 2014-11-14 | 2015-05-27 | 友达光电股份有限公司 | Touch panel |
| TWI507940B (en) * | 2013-07-17 | 2015-11-11 | Au Optronics Corp | Touch panel and touch display panel |
| CN105390118A (en) * | 2015-12-28 | 2016-03-09 | 武汉华星光电技术有限公司 | Display panel, gate driver on array and arrangement method of display panel |
| CN106201052A (en) * | 2015-05-28 | 2016-12-07 | 凌巨科技股份有限公司 | Flexible printed circuit board and touch display module |
| CN111258103A (en) * | 2020-03-27 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI641974B (en) * | 2017-08-17 | 2018-11-21 | 宏碁股份有限公司 | Touch panels and touch panel detection methods |
| CN116207102A (en) * | 2021-12-01 | 2023-06-02 | 群创光电股份有限公司 | Electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201113787A (en) * | 2009-10-05 | 2011-04-16 | Au Optronics Corp | Touch display panel and display device |
| KR20110091380A (en) * | 2010-02-05 | 2011-08-11 | 삼성전자주식회사 | Method and apparatus for noise compensation in touch panel |
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- 2012-05-03 TW TW101115792A patent/TWI448228B/en active
- 2012-08-02 CN CN201210273590.6A patent/CN102841708B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040145575A1 (en) * | 2003-01-29 | 2004-07-29 | Weindorf Paul Fredrick Luther | Cross-point matrix for infrared touchscreen |
| CN1851534A (en) * | 2005-04-23 | 2006-10-25 | 群康科技(深圳)有限公司 | Touchscreen liquid crystal display device |
| CN101295720A (en) * | 2007-04-29 | 2008-10-29 | 中华映管股份有限公司 | Active element array substrate |
| CN201673346U (en) * | 2010-05-13 | 2010-12-15 | 胜华科技股份有限公司 | Dual-screen touch control display module |
| CN102237027A (en) * | 2011-04-14 | 2011-11-09 | 友达光电股份有限公司 | Display panel and test method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133580A (en) * | 2013-04-30 | 2014-11-05 | 群创光电股份有限公司 | touch control display device |
| TWI507940B (en) * | 2013-07-17 | 2015-11-11 | Au Optronics Corp | Touch panel and touch display panel |
| CN104656978A (en) * | 2014-11-14 | 2015-05-27 | 友达光电股份有限公司 | Touch panel |
| CN104656978B (en) * | 2014-11-14 | 2018-08-24 | 友达光电股份有限公司 | Touch panel |
| CN106201052A (en) * | 2015-05-28 | 2016-12-07 | 凌巨科技股份有限公司 | Flexible printed circuit board and touch display module |
| CN105390118A (en) * | 2015-12-28 | 2016-03-09 | 武汉华星光电技术有限公司 | Display panel, gate driver on array and arrangement method of display panel |
| CN111258103A (en) * | 2020-03-27 | 2020-06-09 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
| CN111258103B (en) * | 2020-03-27 | 2021-07-06 | 深圳市华星光电半导体显示技术有限公司 | Display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201347633A (en) | 2013-11-16 |
| TWI448228B (en) | 2014-08-01 |
| CN102841708B (en) | 2015-12-09 |
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