CN202600663U - Twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen - Google Patents
Twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen Download PDFInfo
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- CN202600663U CN202600663U CN 201220155545 CN201220155545U CN202600663U CN 202600663 U CN202600663 U CN 202600663U CN 201220155545 CN201220155545 CN 201220155545 CN 201220155545 U CN201220155545 U CN 201220155545U CN 202600663 U CN202600663 U CN 202600663U
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Abstract
The utility model discloses a twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen which is formed by adding the function of capacitive touch on an existing TN or STN structure. Through adoption of separate-type touch liquid crystal display (LCD) IN-CELL process and a separate-type touch LCD ON-CELL structure mode, the functions of touch and display are achieved at one time. Through one-time coating film, two-time photoetching and combination with a circuit drive, the computer to plate (CTP) function are added on an LCD. Terminal control protocol (TCP) and LCD share an indium tin oxides (ITO) electrode. As a result, the TN\STN capacitive touch-control-display all-in-one screen is achieved.
Description
Technical field
The utility model disclose a kind of STN capacitance touching control show the one screen, belong to electronic product touch-control display screen technology field by International Patent Classification (IPC) (IPC) division.
Background technology
Lcd technology is from the TN-LCD technology that the pen section shows that is applied to of beginning; Develop into the STN-LCD technology that medium information capacity shows that is used for; Arrive the super large information capacity again; The TFT-LCD technology that the LCD TV of high resolving power rate adopted etc., along with infotech is constantly deepened and the development of the amusement trend of society now, what touching technique was also successful at present develops; Particularly capacitive touch screen begins to become new bright spot in the recent period, and beginning begins to popularize in mobile phone and game machine.Capacitance technology touch-screen CTP (Capacity Touch Panel) utilizes the induction by current of human body to carry out work; Capacitance plate is four layers of compound glass screen; The inside surface of glass screen and interlayer respectively are coated with one deck ITO (nano indium tin metal oxide), and outermost layer is the silicon soil glassivation that has only 0.0015mm thick, and interlayer ITO coating is made workplace; Four electrodes are drawn at four angles, and internal layer ITO is for shielding layer to guarantee working environment.When the user touches capacitance plate; Because people's bulk electric field, user's finger and workplace form a coupling capacitance, because be connected to high-frequency signal on the workplace; So finger is walked a very little electric current; This electric current flows out the electrode from four angles of screen respectively, and the electric current of four electrodes of flowing through in theory and finger are proportional to four jiaos distance, and controller calculates the position through the precision to four current ratios.
Existing market adopts separate type touch LCD screen basically, and promptly touch panel is assembled into after the liquid crystal panel produced by separation.For reducing the thickness of liquid crystal touch screen; Market has also been released and has been merged touch panel and liquid crystal panel characteristic in the novel touch LCDs of one; At present both incorporate implementations of bibliographical information comprise mainly that " In-cell " method and " On-cell " method: In-cell are meant touch panel are embedded into the method in the liquid crystal pixel; But this complex process need be through repeatedly plated film and photoetching process could be accomplished; On-cell is meant that this mode has increased the thickness of screen, has increased the technology of capacitance plate and display screen assembling with the method for configuration touch sensor on the touch panel, thereby brings the assembling contraposition a series of problems such as to be forbidden, so cost is than higher.
Summary of the invention
To the deficiency of prior art, the utility model provide a kind of rational in infrastructure, cost is low STN capacitance touching control show the one screen.
For achieving the above object, the utility model is realized through following technical scheme:
A kind of STN capacitance touching control show the one screen; Comprise capacitance touch module CTP and Liquid Crystal Module LCD; Described capacitance touch module CTP and Liquid Crystal Module LCD are combined as a whole to make to touch and show once and accomplish, and capacitance touch module CTP and the shared ITO electrode of Liquid Crystal Module LCD.
Further, capacitance touch module CTP comprises the ITO coating on glass substrate and upper and lower surface thereof, and CTP combines with LCD to realize that through plated film and Twi-lithography capacitance touching control demonstration one shields.
The utility model is to combine In-cell and on-cell dual mode, on existing TN or STN structure, increases the function of capacitance touch, utilizes the process thought of IN-CELL; Adopt frame mode, once accomplish touching and the function that shows, through a plated film with ON-CELL; Twi-lithography, combined circuit drives, and the CTP function is made on the LCD; The shared ITO electrode of TCP and LCD, be made into STN capacitance touch show the one screen.
Description of drawings
Fig. 1 is the utility model synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment: see also Fig. 1; A kind of STN capacitance touching control show the one screen; Comprise capacitance touch module CTP and Liquid Crystal Module LCD; Described capacitance touch module CTP and Liquid Crystal Module LCD are one-body molded, and capacitance touch module CTP and the shared ITO electrode of Liquid Crystal Module LCD, and capacitance touch module CTP comprises the ITO coating on glass substrate and upper and lower surface thereof.
The utility model is to adopt multiple photoetching process to realize that the surface of TN or STN display screen and capacitance touch screen merges, make a kind of external hanging type ON-CELL structure STN capacitance touching control show that one shields.
The inventor utilizes the process thought of IN-CELL with the function of capacitance touch in existing TN or the STN increase, adopts the frame mode of ON-CELL; Once accomplish and touch and the function that shows; Be made into TN capacitance touch and show the one screen, this screen is simple in structure, single face ito glass of former TN screen is replaced to two-sided ito glass get final product; Technology is also uncomplicated, just former STN on the basis of technology many photoetching get final product.Combined circuit drives, and realizes that capacitance touching control shows the function of one screen.
The TN/STN touch-control shows the manufacture craft flow process of one screen:
1) first panel capacitance ITO electrode pattern made:
Cleaning → gluing → baking → exposure → development → harsh demoulding → cleaning → gluing → baking → exposure → development → harsh demoulding (front electrode of electric capacity) → (the reverse side electrode of electric capacity)
2) the LCD ITO electrode pattern of second panel is made:
Cleaning → gluing → baking → exposure → development → harsh demoulding
3) make liquid crystal alignment layer:
Cleaning → PI printing → high temperature sintering → friction
4) make liquid crystal cell:
Silk-screen → dust → fit → hot pressing
5) back processing:
Cutting → filling is brilliant → seal → clean → visual examination → liquid crystal electrically checks → paster → capacitance plate electrically checks → visual examination → packing shipment.
The above record is merely the embodiment that utilizes this origination techniques content, anyly is familiar with modification, the variation that this creation of this art utilization is done, and all belongs to the claim of this creation opinion, and is not limited to embodiment announcement person.
Claims (2)
1. one kind of TN capacitance touching control shows the one screen; It is characterized in that comprising capacitance touch module CTP and Liquid Crystal Module LCD; Described capacitance touch module CTP and Liquid Crystal Module LCD are combined as a whole to make to touch and show once and accomplish, and capacitance touch module CTP and the shared ITO electrode of Liquid Crystal Module LCD.
2. according to claim 1 STN capacitance touching control show the one screen; It is characterized in that: described capacitance touch module CTP comprises the ITO coating on glass substrate and upper and lower surface thereof, and CTP combines with LCD to realize that through plated film and Twi-lithography capacitance touching control demonstration one shields.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155545 CN202600663U (en) | 2012-04-13 | 2012-04-13 | Twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220155545 CN202600663U (en) | 2012-04-13 | 2012-04-13 | Twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600663U true CN202600663U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220155545 Expired - Fee Related CN202600663U (en) | 2012-04-13 | 2012-04-13 | Twisted nematic (TN)\supper twisted nematic (STN) capacitive touch-control-display all-in-one screen |
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| CN (1) | CN202600663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793388A (en) * | 2015-05-12 | 2015-07-22 | 江苏锦润光电有限公司 | Manufacturing technology for touch liquid crystal display screen |
-
2012
- 2012-04-13 CN CN 201220155545 patent/CN202600663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793388A (en) * | 2015-05-12 | 2015-07-22 | 江苏锦润光电有限公司 | Manufacturing technology for touch liquid crystal display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150413 |
|
| EXPY | Termination of patent right or utility model |