CN102193225A - Touch panel and touch display device - Google Patents
Touch panel and touch display device Download PDFInfo
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- CN102193225A CN102193225A CN2010101355760A CN201010135576A CN102193225A CN 102193225 A CN102193225 A CN 102193225A CN 2010101355760 A CN2010101355760 A CN 2010101355760A CN 201010135576 A CN201010135576 A CN 201010135576A CN 102193225 A CN102193225 A CN 102193225A
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Abstract
The invention discloses a touch panel and a touch display device. The touch panel comprises a thin film transistor substrate, a color filter substrate, at least one first touch sensing electrode and at least one first conductive convex block, wherein the color filter substrate and the thin film transistor substrate are opposite to each other; the first touch sensing electrode is arranged on one side, close to the thin film transistor substrate, of the color filter substrate; and the first conductive convex block is arranged between the color filter substrate and the thin film transistor substrate, and electrically connected with the first touch sensing electrode and the thin film transistor substrate respectively. According to the touch panel and the touch display device, the volume can be reduced and the production process can be simplified.
Description
Technical field
The present invention relates to a kind of touch panel and touch control display device.
Background technology
Along with science and technology is constantly progressive, make various information equipment constantly weed out the old and bring forth the new.Wherein, with data input device, with keyboard or the mouse input data, utilize the touch technology to import the selection that data also are another kind of input modes except generally.Because the people except having the vision and the sense of hearing, still has sense of touch, and, make thoughts and feelings formula sensor become another selection of people and the communication of information equipment along with constantly more new breakthrough of sensor technology.
On the other hand, there is the certain difficulty degree in traditional computer inputting interface (for example keyboard or mouse), and causes one of obstacle of computer universalness for the person that is unfamiliar with the computer in operation.In order to provide more intuitive operating equipment, recent dealer and positive development touch panel (touch panel).Touch panel has the inputting interface characteristic of hommization, makes the user of any age level directly to import data with finger or pointer, or chooses the function choosing-item on the touch panel.
Generally speaking, touch panel is on a display surface of a display panel (for example display panels) Trackpad to be set in addition.Yet the extra Trackpad that is provided with is except the integral thickness of meeting increase touch panel, and the increase that material cost also can be relative.Recently, there is the dealer that Trackpad is integrated in the display panel, thus, to save material cost and to reduce the thickness of touch panel.
Please refer to shown in Figure 1ly, known touch panel 1 comprises a thin film transistor base plate 101, a colored optical filtering substrates 102, a touch sensing control module 103, a driver element 104, one common voltage electrode 105, an insulation course 106, a touch sensing electrode 107, an active component device 108 and a sealing 109.
Thin film transistor base plate 101 and colored optical filtering substrates 102 are relative and establish, driver element 104 and active component device 108 are arranged at a side of thin film transistor base plate 101, wherein active component device 108 can comprise many thin film transistor (TFT)s and many pixel electrodes, and driver element 104 outputs one drive signal is with drive thin film transistors.Touch sensing control module 103 and common voltage electrode 105 are arranged at a side of colored optical filtering substrates 102.
In the framework of known touch panel 1, distance between thin film transistor base plate 101 and the colored optical filtering substrates 102 is less than the touch sensing control module 103 height summation with driver element 104, and makes touch sensing control module 103 and driver element 104 to be crisscross arranged.Yet, information equipment now with light, thin, short, little be designer trends, therefore, will make the volume of touch panel 1 increase with the touch sensing control module 103 of interlace mode setting and driver element 104.
In addition, if touch sensing control module 103 and driver element 104 are separately positioned on thin film transistor base plate 101 and the colored optical filtering substrates 102, then touch sensing control module 103 and driver element 104 certainly will be respectively engages (bonding) technology on thin film transistor base plate 101 and colored optical filtering substrates 102, this not only makes processing step increase, improve the difficulty in process degree, and circuit will can not interconnect.Yet,, can simplify process complexity if touch sensing control module 103 and driver element 104 carry out joint technology on same substrate.
Therefore, how to provide a kind of touch panel and touch control display device of can reduced volume and simplifying production technology, real is one of important topic now.
Summary of the invention
Because above-mentioned problem, purpose of the present invention for provide a kind of can reduced volume and simplify the touch panel and the touch control display device of production technology.
For reaching above-mentioned purpose, the invention provides a kind of touch panel, it comprises a thin film transistor base plate, a colored optical filtering substrates, at least one first touch sensing electrode and at least one first conductive projection.Colored optical filtering substrates is relative with thin film transistor base plate and establish.The first touch sensing electrode is arranged at the side of colored optical filtering substrates near thin film transistor base plate.First conductive projection is arranged between colored optical filtering substrates and the thin film transistor base plate, and electrically connects with the first touch sensing electrode and thin film transistor base plate respectively.
In one embodiment of this invention, touch panel also comprises a driver element, and it is arranged at thin film transistor base plate, and produces a drive pixel electrode.
In one embodiment of this invention, touch panel also comprises a touch sensing control module, and it is arranged at thin film transistor base plate, and electrically connects via the first touch sensing electrode of first conductive projection and colored optical filtering substrates.
For reaching above-mentioned purpose, the invention provides a kind of touch control display device, it comprises a backlight module and a touch panel.Touch panel and this backlight module are oppositely arranged.This touch panel has a thin film transistor base plate, a colored optical filtering substrates, at least one first touch sensing electrode and at least one first conductive projection.Colored optical filtering substrates is relative with thin film transistor base plate and establish.The first touch sensing electrode is arranged at the side of colored optical filtering substrates near thin film transistor base plate.First conductive projection is arranged between colored optical filtering substrates and the thin film transistor base plate, and electrically connects with the first touch sensing electrode and thin film transistor base plate respectively.
From the above, according to touch panel of the present invention and touch control display device, its sensing signal with the first touch sensing electrode is sent to thin film transistor base plate by first conductive projection.Therefore, one driver element of the many thin film transistor (TFT)s on the drive thin film transistors substrate, and a touch sensing control module that receives sensing signal can be arranged at respectively on the identical substrate, and more can driver element and the touch sensing control module be arranged at again on the same substrate after integrating.Compared to known technology, touch panel of the present invention and touch control display device can be integrated into thin film transistor base plate with touch sensing control module and driver element, save the space thus and dwindle touch panel and the volume of touch control display device, and can simplify the joint technology of driver element and touch sensing control module.
Description of drawings
Fig. 1 is for showing known touch control display device one synoptic diagram;
Fig. 2 A to Fig. 2 G is a synoptic diagram of the touch panel of the demonstration preferred embodiment of the present invention; And
Fig. 3 is a synoptic diagram of the touch control display device of the demonstration preferred embodiment of the present invention.
Description of reference numerals
1: touch panel 101: thin film transistor base plate
102: colored optical filtering substrates 103: the touch sensing control module
104: driver element 105: the common voltage electrode
106: insulation course 107: the touch sensing electrode
108: pixel electrode 109: sealing
2: touch panel 201: thin film transistor base plate
202: 203: the first touch sensing electrodes of colored optical filtering substrates
206: photoresist layer 207: liquid crystal layer
208: pixel electrode 209: sealing
210: black matrix" 211: polaroid
Conductive projection 213 in 212: the second: driver element
214: 215: the second touch sensing electrodes of touch sensing control module
216: insulation course 217: geometric scheme
3: touch control display device 31: touch panel
32: backlight module 321: light source
322: diffuser plate 323: optical diaphragm group
A: area L 1: light
Embodiment
Touch technology can be divided into four kinds of resistance-type (Resistive), condenser type (Capacitive), acoustic wave (Surface Acoustic Wave) and optical profile types (Optics) etc. according to principle of induction.To use wider capacitive technologies principle at public use aspect at this is described.Hereinafter with reference to relevant indicators, touch panel and touch control display device according to the preferred embodiment of the present invention are described.
Please refer to shown in Fig. 2 A and Fig. 2 B, wherein, Fig. 2 A is the vertical view of the touch panel 2 of the preferred embodiment of the present invention, and Fig. 2 B is the sectional view of A-A line among Fig. 2 A.Touch panel 2 of the present invention comprises a thin film transistor base plate 201, a colored optical filtering substrates 202, at least one first touch sensing electrode 203, at least one first conductive projection 204 and a common voltage electrode 205.
Thin film transistor base plate 201 and colored optical filtering substrates 202 are relative and establish, in the present embodiment, thin film transistor base plate 201 can have different materials in response to actual demand, and for example thin film transistor base plate 21 and colored optical filtering substrates 202 can be respectively a glass substrate or a plastic base.
The first touch sensing electrode 203 is arranged at the side of colored optical filtering substrates 202 near thin film transistor base plate 201 respectively with common voltage electrode 205.First conductive projection 204 is arranged between colored optical filtering substrates 202 and the thin film transistor base plate 201, and electrically connects with the first touch sensing electrode 203 and thin film transistor base plate 201 respectively.In the present embodiment, the material of first conductive projection 204 comprise gold, tin, copper and alloy thereof at least one of them, certainly, first conductive projection 204 also can comprise other conductive material, utilizes usually at this and sneaks into conductive gold spacer as first conductive projection 204 in the glue material.
Please continue with reference to shown in Fig. 2 B, the touch panel 2 of present embodiment also comprises a photoresist layer 206, a liquid crystal layer 207, a pixel electrode 208, a sealing 209, a black matrix" 210 and a polaroid 211.
Sealing 209 is arranged between thin film transistor base plate 201 and the colored optical filtering substrates 202, leaks to prevent liquid crystal layer 207.Black matrix" 210 is arranged between the colored optical filtering substrates 202 and the first touch sensing electrode 203, to cover display pixel part in addition.Polarizer 211 is arranged at the side of colored optical filtering substrates 202 away from thin film transistor base plate 201.Wherein, black matrix" 210 also can be integrated in photoresist layer 206, is not limited its aspect at this.
Please refer to shown in Fig. 2 C, Fig. 2 C is the sectional view of B-B line among Fig. 2 A.The touch panel 2 of present embodiment also comprises at least one second conductive projection 212, and it is arranged between thin film transistor base plate 201 and the colored optical filtering substrates 202.On the implementation, second conductive projection 212 electrically connects with common voltage electrode 205 and pixel electrode 208 respectively.In the present embodiment, second conductive projection 212 comprise gold, tin, copper and alloy thereof at least one of them, certainly, second conductive projection 212 also can comprise other conductive material, utilizes usually at this and sneaks into conductive gold spacer as second conductive projection 212 in the glue material.In the present embodiment, pixel electrode 208 is also extensible and electrically connect with conductive pattern (for example signal wire on the circuit board).
In addition, the touch panel 2 of present embodiment also comprises a driver element 213 and a touch sensing control module 214, and it electrically connects with conductive pattern respectively, to do the signal conduction.When people's contact surface plate 2, the signal that is produced at the first touch sensing electrode 203 can conduct to thin film transistor base plate 201 by first conductive projection 204 and second conductive projection 212, then, signal can be delivered to touch sensing control module 214 by suitable conductive pattern design.
Driver element 213 and touch sensing control module 214 are arranged at a side of thin film transistor base plate 201 respectively, and driver element 213 produces at least one thin film transistor (TFT) of a drive thin film transistor base plate 201.In the present embodiment, driver element 213 or touch sensing control module 214 comprise a chip or an integrated circuit.In addition, driver element 213 and touch sensing control module 214 also can be integrated in the same integrated circuit.
Because human body is an electrified body, therefore, when the people did not contact with touch panel 2, various electrodes were idiostatic, did not have electric current to pass through on the touch panel 2.When contacting with touch panel 2, the static inflow surface in the human body and produce weak current and pass through.At this moment, the electric charge change amount that touch sensing control module 214 receives on the first touch sensing electrode 203 by first conductive projection 204 and thin film transistor base plate 201, and according to electric charge change amount judgement touch position.
Please be simultaneously with reference to shown in Fig. 2 C and Fig. 2 D, wherein Fig. 2 D is the sectional view of C-C line among Fig. 2 A.Can find out that by Fig. 2 C and Fig. 2 D photoresist layer 206 is arranged between the first touch sensing electrode 203 and the common voltage electrode 205.
The touch panel 2 of present embodiment also can be designed to the touch sensing electrode of alternating expression except the touch sensing electrode that is designed to full slice system (as mentioned above).Please refer to shown in Fig. 2 E, it is the simple schematic top plan view of the touch panel 2 of present embodiment.The wherein first touch sensing electrode 203 and the 215 interlaced arrangements of the second touch sensing electrode.
Fig. 2 F is the sectional view of A-A line among Fig. 2 E.Please refer to shown in Fig. 2 F, the touch panel 2 of present embodiment also comprises at least one second a touch sensing electrode 215 and an insulation course 216.Wherein, the second touch sensing electrode 215 and the first touch sensing electrode 203 are oppositely arranged, and insulation course 216 is arranged between the first touch sensing electrode 203 and the second touch sensing electrode 215.Fig. 2 G is the enlarged drawing of overlooking of the first touch sensing electrode 203 in the area B of Fig. 2 E and the second touch sensing electrode 215.In Fig. 2 G, the first touch sensing electrode 203 of part and the second touch sensing electrode 215 of part have overlapping shown in area B in a projecting direction.Outside overlapping, the first touch sensing electrode 203 and/or the second touch sensing electrode 215 have a geometric scheme 217, and in the present embodiment, geometric scheme 217 can be a quadrilateral, triangle, circle or polygon, at this, geometric scheme 217 is the example explanation with the quadrilateral.
Please be simultaneously with reference to shown in Fig. 2 F and Fig. 2 G, the first touch sensing electrode 203 and the second touch sensing electrode 215 form a capacity effect in overlapping.When overlapping area is big more, can form a bigger equivalent electric capacity, opposite, when overlapping area is more little, can form less equivalent capacity.
In the aspect of alternating expression touch sensing electrode, be the distance of winning between the touch sensing electrode 203 and the second touch sensing electrode 215 to be changed, and to postpone by resistance-capacitance that (R-Cdelay) phenomenon senses by touch sensing control module 214 be that what point is pressed by pushing.
The first touch sensing electrode 203 and/or the electrode width of the second touch sensing electrode 215 in zone C that it should be noted that present embodiment are narrower.The first touch sensing electrode 203 and/or the second touch sensing electrode 215 reduce the overlapping area of the first touch sensing electrode 203 and the second touch sensing electrode 215 thus at the electrode width broad of geometric scheme 217 away from an end of zone C.Therefore, the touch panel 2 of present embodiment can reduce capacity effect, and increases the sensing region of the first touch sensing electrode 203 and the second touch sensing electrode 215.
Please be simultaneously with reference to shown in Figure 3, the touch control display device 3 of the preferred embodiment of the present invention comprises a touch panel 31 and a backlight module 32.Wherein, backlight module 32 is oppositely arranged with touch panel 31.
Generally speaking, backlight module 32 is according to the light source position difference, and divides into straight-down negative and side-light type, and in the present embodiment, backlight module 32 is the example explanation with the straight-down negative.Backlight module 32 comprises a light source 321, a diffuser plate 322, at least one optical diaphragm group 323 and a framework 324.
When light source 321 produced a light L1, it was in regular turn by diffuser plate 322 and optical diaphragm group 323, to provide a uniform light L1 to touch panel 31.
In the present embodiment, touch panel 31 is the described touch panel 2 of previous embodiment, and its function, circuit and mode of operation are narrated in previous embodiment, do not repeat them here.
In sum, be sent on the thin film transistor base plate by at least one sensing signal of first conductive projection according to touch panel of the present invention and touch control display device, again sensing signal be sent to the touch sensing control module the first touch sensing electrode institute sensing.Compared to known technology, touch panel of the present invention and touch control display device can be integrated into thin film transistor base plate with touch sensing control module and driver element, maybe touch sensing control module and driver element can be integrated in same integrated circuit, save the space thus, simplify technology and dwindle touch panel and the volume of touch control display device.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.
Claims (20)
1. touch panel comprises:
One thin film transistor base plate,
One colored optical filtering substrates is relative with this thin film transistor base plate and establish;
At least one first touch sensing electrode is arranged at the side of this colored optical filtering substrates near this thin film transistor base plate; And
At least one first conductive projection is arranged between this colored optical filtering substrates and this thin film transistor base plate, and electrically connects with this first touch sensing electrode and this thin film transistor base plate respectively.
2. touch panel as claimed in claim 1 also comprises:
One common voltage electrode is arranged at the side of this colored optical filtering substrates near this thin film transistor base plate; And
One photoresist layer is arranged between this common voltage electrode and this colored optical filtering substrates.
3. touch panel as claimed in claim 1 also comprises:
At least one second touch sensing electrode is oppositely arranged with this first touch sensing electrode; And
One insulation course is arranged between this first touch sensing electrode and this second touch sensing electrode.
4. touch panel as claimed in claim 3, some of these first touch sensing electrodes are overlapping with this second touch sensing electrode of part at a projecting direction.
5. touch panel as claimed in claim 2 also comprises at least one second conductive projection, is arranged between this colored optical filtering substrates and this thin film transistor base plate, and electrically connects with this common voltage electrode and this thin film transistor base plate respectively.
6. touch panel as claimed in claim 5, wherein the material of this first conductive projection and this second conductive projection comprise gold, tin, copper and alloy thereof at least one of them.
7. touch panel as claimed in claim 2 also comprises:
One pixel electrode is arranged at the side of this thin film transistor base plate near this colored optical filtering substrates; And
One liquid crystal layer is arranged between this common voltage electrode and this pixel electrode.
8. touch panel as claimed in claim 7 also comprises a driver element, is arranged at this thin film transistor base plate, and this driver element produces a drive signal to drive this pixel electrode.
9. touch panel as claimed in claim 1 also comprises a touch sensing control module, is arranged at this thin film transistor base plate, and electrically connects via this first touch sensing electrode of this first conductive projection and this colored optical filtering substrates.
10. touch panel as claimed in claim 1 also comprises a black matrix", is arranged between this colored optical filtering substrates and this first touch sensing electrode.
11. a touch control display device comprises:
One backlight module; And
One touch panel, be oppositely arranged with this backlight module, this touch panel has a thin film transistor base plate, a colored optical filtering substrates, at least one first touch sensing electrode and at least one first conductive projection, this colored optical filtering substrates is relative with this thin film transistor base plate and establish, and this first touch sensing electrode is arranged at the side of this colored optical filtering substrates near this thin film transistor base plate; This first conductive projection is arranged between this colored optical filtering substrates and this thin film transistor base plate, and electrically connects with this first touch sensing electrode and this thin film transistor base plate respectively.
12. touch control display device as claimed in claim 11, wherein this touch panel also comprises a sealing, is arranged between this thin film transistor base plate and this colored optical filtering substrates.
13. touch control display device as claimed in claim 11, wherein this touch panel also comprises:
One common voltage electrode is arranged at the side of this colored optical filtering substrates near this thin film transistor base plate; And
One photoresist layer is arranged between this common voltage electrode and this colored optical filtering substrates.
14. touch control display device as claimed in claim 13, wherein this touch panel also comprises:
At least one second touch sensing electrode is oppositely arranged with this first touch sensing electrode; And
One insulation course is arranged between this first touch sensing electrode and this second touch sensing electrode.
15. touch control display device as claimed in claim 13, wherein this touch panel also comprises at least one second conductive projection, be arranged between this colored optical filtering substrates and this thin film transistor base plate, and electrically connect with this common voltage electrode and this thin film transistor base plate respectively.
16. touch control display device as claimed in claim 13, wherein this touch panel also comprises:
One pixel electrode is arranged at the side of this thin film transistor base plate near this colored optical filtering substrates; And
One liquid crystal layer is arranged between this common voltage electrode and this pixel electrode.
17. touch control display device as claimed in claim 16, wherein this touch panel also comprises a driver element, is arranged at this thin film transistor base plate, and this driver element produces a drive signal to drive this pixel electrode.
18. touch control display device as claimed in claim 11, wherein this touch panel also comprises a touch sensing control module, be arranged at this thin film transistor base plate, and electrically connect via this first touch sensing electrode of this first conductive projection and this colored optical filtering substrates.
19. touch control display device as claimed in claim 11, wherein this touch panel also comprises a Polarizer, is arranged at the side of this colored optical filtering substrates away from this thin film transistor base plate.
20. touch control display device as claimed in claim 11, wherein this touch panel also comprises a black matrix", is arranged between this colored optical filtering substrates and this first touch sensing electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135576.0A CN102193225B (en) | 2010-03-10 | 2010-03-10 | Touch panel and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135576.0A CN102193225B (en) | 2010-03-10 | 2010-03-10 | Touch panel and touch display device |
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| CN102193225A true CN102193225A (en) | 2011-09-21 |
| CN102193225B CN102193225B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010135576.0A Active CN102193225B (en) | 2010-03-10 | 2010-03-10 | Touch panel and touch display device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103034377A (en) * | 2011-09-28 | 2013-04-10 | 瀚宇彩晶股份有限公司 | Embedded touch panel |
| CN105117073A (en) * | 2015-09-29 | 2015-12-02 | 京东方科技集团股份有限公司 | Touch display panel and touch display device |
| CN105808001A (en) * | 2016-03-10 | 2016-07-27 | 京东方科技集团股份有限公司 | Force touch screen and display device |
| CN106557212A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN106855764A (en) * | 2015-12-09 | 2017-06-16 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN108920006A (en) * | 2018-07-13 | 2018-11-30 | 京东方科技集团股份有限公司 | Color membrane substrates, display device and preparation method thereof |
| CN109491550A (en) * | 2019-01-03 | 2019-03-19 | 京东方科技集团股份有限公司 | A kind of touch base plate and its detection method, display device |
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| CN101424817A (en) * | 2008-12-17 | 2009-05-06 | 友达光电股份有限公司 | Method for making colourful filtering touch control substrate |
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| US20040150629A1 (en) * | 2002-07-18 | 2004-08-05 | Lee Yu-Tuan | LCD and touch-control method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034377A (en) * | 2011-09-28 | 2013-04-10 | 瀚宇彩晶股份有限公司 | Embedded touch panel |
| CN103034377B (en) * | 2011-09-28 | 2016-02-10 | 瀚宇彩晶股份有限公司 | Embedded touch panel |
| CN105117073A (en) * | 2015-09-29 | 2015-12-02 | 京东方科技集团股份有限公司 | Touch display panel and touch display device |
| CN106557212A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN106855764A (en) * | 2015-12-09 | 2017-06-16 | 南昌欧菲光科技有限公司 | Touch display unit |
| CN105808001A (en) * | 2016-03-10 | 2016-07-27 | 京东方科技集团股份有限公司 | Force touch screen and display device |
| WO2017152485A1 (en) * | 2016-03-10 | 2017-09-14 | 京东方科技集团股份有限公司 | Display panel, pressure-sensing touch screen and display apparatus |
| CN105808001B (en) * | 2016-03-10 | 2018-07-17 | 京东方科技集团股份有限公司 | A kind of pressure sensitivity touch screen and display device |
| US10545598B2 (en) | 2016-03-10 | 2020-01-28 | Boe Technology Group Co., Ltd. | Display panel, pressure sensitive touch screen, and display device |
| CN108920006A (en) * | 2018-07-13 | 2018-11-30 | 京东方科技集团股份有限公司 | Color membrane substrates, display device and preparation method thereof |
| CN108920006B (en) * | 2018-07-13 | 2021-07-09 | 京东方科技集团股份有限公司 | Color film substrate, display device and preparation method thereof |
| CN109491550A (en) * | 2019-01-03 | 2019-03-19 | 京东方科技集团股份有限公司 | A kind of touch base plate and its detection method, display device |
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| CN102193225B (en) | 2015-07-01 |
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Address after: Hsinchu Science Park, Taiwan, China Applicant after: Innolux Display Group Address before: Tainan County, Taiwan, China Applicant before: Chimei Optoelectronics Co., Ltd. |
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