CN202285071U - Liquid crystal display module with capacitive touch screen - Google Patents
Liquid crystal display module with capacitive touch screen Download PDFInfo
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- CN202285071U CN202285071U CN2011204035497U CN201120403549U CN202285071U CN 202285071 U CN202285071 U CN 202285071U CN 2011204035497 U CN2011204035497 U CN 2011204035497U CN 201120403549 U CN201120403549 U CN 201120403549U CN 202285071 U CN202285071 U CN 202285071U
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- touch screen
- conductive electrode
- capacitance touch
- liquid crystal
- crystal display
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Abstract
The utility model provides a liquid crystal display module with a capacitive touch screen, which comprises a liquid crystal display module and the capacitive touch screen. The liquid crystal display module comprises a liquid crystal display and a back light source providing a light source for the liquid crystal display. A transparent conductive electrode of the capacitive touch screen is arranged on at least one surface of an upper polarizer in the liquid crystal display to form the upper polarizer with a conductive electrode, a first bonding layer is arranged between an upper substrate in the liquid crystal display and the lower surface of the upper polarizer of the conductive electrode, and a second bonding layer is arranged between a decoration layer in the capacitive touch screen and the upper surface of the upper polarizer of the conductive electrode. The liquid crystal display module enables the transparent conductive electrode of the original capacitive touch screen to be arranged on at least one surface of the upper polarizer of the liquid crystal display, so that an air layer between the capacitive touch screen and the liquid crystal display is reduced, and reflection of natural light and the back light source on the air layer is further reduced. The liquid crystal display module reduces dazzling, improves transmissivity, improves contrast ratio and is good in display effect.
Description
Technical field
The utility model belongs to the demonstration field, relates in particular to a kind of capacitance touch screen liquid crystal display module.
Background technology
In the prior art, capacitance touch screen liquid crystal display module comprises capacitance touch screen and liquid crystal display mode block body, after both make respectively, combines to fit together through frame adhesive again.Particularly; Please refer to shown in Figure 1; Said LCD MODULE comprises LCD and for LCD provides the backing structure 16 of light source, wherein LCD comprises the upper substrate 11 and infrabasal plate 12 that is oppositely arranged, and upper substrate 11 is provided with transparency electrode (among the figure sign); Infrabasal plate 12 is provided with down transparency electrode (not indicating among the figure); Accommodate liquid crystal 13 between said upper substrate 11 and the infrabasal plate 12, be provided with down polaroid 15 between infrabasal plate 12 and the backing structure 16, the upper surface of upper substrate 11 is provided with polaroid 14; Said capacitance touch screen comprises touch-control sensor (Sensor) 17 that is formed with transparency conductive electrode and the decorative layer (LENS) 18 of being located at touch-control sensor 17 upper surfaces, and said touch-control sensor 17 is pasted through optical cement 19 (OCA) with decorative layer 18 and combined; Aforementioned capacitance touch screen and LCD are combined to fit together through frame adhesive 10.
But; Along with the raising of development of technology and terminal market customer requirement, the shortcoming of above-mentioned demonstration modular structure shows especially day by day, is in particular in: be used for frame adhesive that capacitance touch screen combines with LCD when making; Usually only be formed on the edge of capacitance touch screen and LCD; So the most of space between capacitance touch screen and the LCD is an air layer, because the difference of air and glass substrate refractive index, the interface of capacitance touch screen and LCD can produce reflection; Thereby not only increased extraneous natural reflection of light and caused glare effect; Simultaneously also reduce the emergent light of inner backlight of LCD, thereby the contrast of LCD MODULE is descended, had a strong impact on the display effect of whole demonstration module.
Summary of the invention
The purpose of the utility model provides a kind of novel capacitance touch screen liquid crystal display module, solves natural light and reflection, dazzle and the contrast low technical matters of backlight between capacitance touch screen and LCD in the prior art.
The purpose of the utility model realizes through following technical scheme:
A kind of capacitance touch screen liquid crystal display module; Comprise LCD MODULE and capacitance touch screen; Said LCD MODULE comprises LCD and the backlight of light source is provided for LCD; At least one surface of last polaroid in the LCD is provided with the transparency conductive electrode of capacitance touch screen; Have the last polaroid of conductive electrode with formation, the upper substrate in the LCD and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat, and decorative layer in the capacitance touch screen and said upper surface with last polaroid of conductive electrode are provided with second tack coat.
The capacitance touch screen liquid crystal display module that the utility model provides is arranged at least one surface of the last polaroid in the LCD with the transparency conductive electrode in the former capacitance touch screen, combines with LCD and decorative layer respectively through first tack coat and second tack coat then; Reduced the air layer between capacitance touch screen and the LCD thus; And then reduced the reflection of natural light and backlight at this layer, and dazzle reduces, and transmitance raises; Contrast improves, and display effect is better; Reduced the touch-control sensor substrate and the frame adhesive thickness that carry transparency conductive electrode in the former capacitance touch screen, whole product thickness is thinner, and raw-material cost is also lower; Simultaneously, the transparency conductive electrode in the former capacitance touch screen is arranged at least one surface of the last polaroid in the LCD, implements than being easier to control on the technology, it is also lower to scrap the cost that causes thus.
Description of drawings
Fig. 1 is the structural representation of the capacitance touch screen liquid crystal display module that provides of prior art.
Fig. 2 is the structural representation of first kind of capacitance touch screen liquid crystal display module providing of the utility model.
Fig. 3 is the structural representation of second kind of capacitance touch screen liquid crystal display module providing of the utility model.
Fig. 4 is the structural representation of the third capacitance touch screen liquid crystal display module of providing of the utility model.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please refer to shown in Figure 1; A kind of capacitance touch screen liquid crystal display module; Comprise LCD MODULE and capacitance touch screen; Said LCD MODULE comprises LCD and for LCD provides the backlight of light source, at least one surface of the last polaroid in the LCD is provided with the transparency conductive electrode of capacitance touch screen, has the last polaroid of conductive electrode with formation; Upper substrate in the LCD and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat, and decorative layer in the capacitance touch screen and said upper surface with last polaroid of conductive electrode are provided with second tack coat.
The capacitance touch screen liquid crystal display module that the utility model provides is arranged at least one surface of the last polaroid in the LCD with the transparency conductive electrode in the former capacitance touch screen, combines with LCD and decorative layer respectively through first tack coat and second tack coat then; Reduced the air layer between capacitance touch screen and the LCD thus; And then reduced the reflection of natural light and backlight at this layer, and dazzle reduces, and transmitance raises; Contrast improves, and display effect is better; Reduced the touch-control sensor substrate and the frame adhesive thickness that carry transparency conductive electrode in the former capacitance touch screen, whole product thickness is thinner, and raw-material cost is also lower; Simultaneously, the transparency conductive electrode in the former capacitance touch screen is arranged at least one surface of the last polaroid in the LCD, implements than being easier to control on the technology, it is also lower to scrap the cost that causes thus.
Please refer to shown in Figure 2; As first kind of concrete embodiment; The transparency conductive electrode of said capacitance touch screen is arranged on the upper surface of polaroid; This transparency conductive electrode forms through triangle pattern or single face bridging argyle design, goes up polaroid thus and both plays a part change polarization of light direction as the last polaroid of LCD MODULE, again as the functional sheet of capacitance touch screen.Particularly, said capacitance touch screen liquid crystal display module comprises LCD MODULE 21, and the upper surface of the last polaroid 22 in the LCD MODULE 21 is provided with the transparency conductive electrode 23 of capacitance touch screen, forms the last polaroid with conductive electrode thus; Said LCD MODULE 21 and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat 24; Decorative layer 26 in the capacitance touch screen is provided with second tack coat 25 with said upper surface with last polaroid of conductive electrode; Promptly second tack coat 25 is located between the transparency conductive electrode 23 of decorative layer 26 and capacitance touch screen, and said first tack coat and second tack coat can adopt optical cement or other cementing agent.Wherein, This transparency conductive electrode 23 can form through triangle pattern or single face bridging argyle design; Promptly adopt triangle pattern or single face bridging argyle design to form the electrode cabling of capacitance touch screen at the upper surface of last polaroid 22; The concrete cabling design of its triangle pattern or single face bridging argyle design is repeated no more at this for those skilled in the art know.
Please refer to shown in Figure 3; As second kind of concrete embodiment; The transparency conductive electrode of said capacitance touch screen is arranged on the lower surface of polaroid; This transparency conductive electrode forms through triangle pattern or single face bridging argyle design, goes up polaroid thus and both plays a part change polarization of light direction as the last polaroid of LCD MODULE, again as the functional sheet of capacitance touch screen.Particularly, said capacitance touch screen liquid crystal display module comprises LCD MODULE 21, and the lower surface of the last polaroid 22 in the LCD MODULE 21 is provided with the transparency conductive electrode 23 of capacitance touch screen, forms the last polaroid with conductive electrode thus; Said LCD MODULE 21 and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat 24; Promptly first tack coat 24 is located between the transparency conductive electrode 23 of LCD MODULE 21 and capacitance touch screen; Decorative layer 26 in the capacitance touch screen is provided with second tack coat 25 with said upper surface with last polaroid of conductive electrode, and said first tack coat and second tack coat can adopt optical cement or other cementing agent.Wherein, this transparency conductive electrode 23 can form through triangle pattern or single face bridging argyle design, and its concrete generation type can adopt the design of aforementioned first kind of embodiment.
Please refer to shown in Figure 4; As the third concrete embodiment; The transparency conductive electrode of said capacitance touch screen is arranged on the upper surface and the lower surface of polaroid; This transparency conductive electrode is provided with orthogonal pattern through the upper and lower surfaces at last polaroid and forms, and goes up polaroid thus and both plays a part change polarization of light direction as the last polaroid of LCD MODULE, again as the functional sheet of capacitance touch screen.Particularly; Said capacitance touch screen liquid crystal display module comprises LCD MODULE 21; The upper and lower surfaces of the last polaroid 22 in the LCD MODULE 21 is provided with the transparency conductive electrode 23 of capacitance touch screen, and particularly, the said upper surface of going up polaroid 22 is provided with the transparency conductive electrode 231 of capacitance touch screen; The lower surface of last polaroid 22 is provided with the transparency conductive electrode 232 of capacitance touch screen, forms the last polaroid with conductive electrode thus; Said LCD MODULE 21 and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat 24; Promptly first tack coat 24 is located between the transparency conductive electrode 232 of LCD MODULE 21 and capacitance touch screen; Decorative layer 26 in the capacitance touch screen is provided with second tack coat 25 with said upper surface with last polaroid of conductive electrode; Promptly second tack coat 25 is located between the transparency conductive electrode 231 of decorative layer 26 and capacitance touch screen, and said first tack coat and second tack coat can adopt optical cement or other cementing agent.Wherein, This transparency conductive electrode 23 can be provided with orthogonal pattern through the upper and lower surfaces at last polaroid and form; As a kind of concrete embodiment; The pattern of said transparency conductive electrode 23 is to form transparency conductive electrode 231 at the polaroid upper surface along X-direction, and forms transparency conductive electrode 232 at the polaroid lower surface along Y direction, and its X axle is vertical each other with Y direction; The concrete cabling design of its X axle and the mutual vertical pattern of Y axle is repeated no more at this for those skilled in the art know.
As a kind of concrete embodiment, the formation pattern of said transparency conductive electrode 23 is processed through the gold-tinted processing procedure; Particularly, the last polaroid that will have conductive electrode earlier cleans, and secondly applies one deck photoresists at last polaroid; The thickness of gluing is the 5-50 micron, and with the last polaroid baking-curing behind the gluing, the temperature of baking is 60-200 ℃ once more; Then photoresists are toasted with full solidification it through overexposure with after developing; The temperature of its baking is 100-300 ℃, after the conductive electrode etching that etching solution will not covered by photoresists forms the transparency conductive electrode pattern behind the demoulding.
As the concrete embodiment of another kind, the formation pattern of said transparency conductive electrode 23 is through acid solution etching or etching paste etching or laser dry etching one-tenth; Particularly; Said acid etching comprise earlier have conductive electrode on silk-screen acid-proof substances on the polaroid; The thickness of silk-screen is the 5-50 micron, secondly the last polaroid behind the silk-screen is carried out the UV illumination curing, and for example can adopt wavelength is that the long-pending amount of 365 nanometers, light is 500-2000mj/cm
2The UV illumination curing, through the conductive electrode etching of acid solution to not covered by acid-proof substances, the concentration of acid solution is 1-10mol/L once more, through alkali lye the acid-proof substances demoulding is formed the transparency conductive electrode pattern at last, the concentration of alkali lye is 0.1-2mol/L; Etching paste is etched similar with the etched technology of acid solution, repeats no more at this.
In addition, laser do to be carved and to be meant through laser unwanted conductive electrode is ablated, and generally adopts UV light, and its power is 10-100W, and frequency is 20-200KHZ, and the speed of ablation is 300-3000mm/s, forms the transparency conductive electrode pattern with this.
Aforementioned contain transparency conductive electrode on after polaroid forms, follow-uply be the common process flow process with decorative layer and LCD MODULE applying process, be not described in detail in this.
As concrete embodiment; The thickness of the transparency conductive electrode of said capacitance touch screen is the 5-500 nanometer; Resistance is excessive if thickness, can cause transparency conductive electrode film side less than 5 nanometers, and the aisle resistance after the etching can reach more than the 100K Ω; The limit of power (generally requiring below the 30K Ω the highest 50K Ω that is no more than) that will exceed capacitance touch screen driving circuit IC; If thickness greater than 500 nanometers, can cause the optical transmittance of transparency conductive electrode film seriously to reduce, after the etching simultaneously, the end shadow of transparency conductive electrode pattern will be very obvious, and market can't be accepted.Wherein, the said method that on last polaroid, forms the capacitance touch screen transparency conductive electrode can form or other method formation transparency conductive electrode film well known to those skilled in the art through vacuum coating or wet coat.
As concrete embodiment, the material of the transparency conductive electrode of said capacitance touch screen is that tin indium oxide (ITO), conducting polymer, CNT (CNTs) or Nano Silver (Ag) wait other electrically conducting transparent material.
As concrete embodiment, the outside surface of the transparency conductive electrode of said capacitance touch screen is provided with protective seam, in order to the protection transparency conductive electrode, prevent to scratch cause open circuit, oxidation etc., strengthen reliability of products with this.The not special restriction of the selection of protective layer material, as long as can realize the effective protection to transparency conductive electrode, as a kind of embodiment, the material of said protective seam is an epoxy resin, thickness is the 0.5-50 micron; As another kind of embodiment, the material of said protective seam is silicon dioxide (SiO
2), thickness is the 10-100 nanometer.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. capacitance touch screen liquid crystal display module; It is characterized in that; Comprise LCD MODULE and capacitance touch screen; Said LCD MODULE comprises LCD and for LCD provides the backlight of light source, at least one surface of the last polaroid in the LCD is provided with the transparency conductive electrode of capacitance touch screen, has the last polaroid of conductive electrode with formation; Upper substrate in the LCD and said has between the lower surface of last polaroid of conductive electrode and is provided with first tack coat, and decorative layer in the capacitance touch screen and said upper surface with last polaroid of conductive electrode are provided with second tack coat.
2. capacitance touch screen liquid crystal display module according to claim 1; It is characterized in that; The transparency conductive electrode of said capacitance touch screen is arranged on the upper surface or the lower surface of polaroid, and this transparency conductive electrode forms through triangle pattern or single face bridging argyle design.
3. capacitance touch screen liquid crystal display module according to claim 1; It is characterized in that; The transparency conductive electrode of said capacitance touch screen is arranged on the upper surface and the lower surface of polaroid, and this transparency conductive electrode is provided with orthogonal pattern through the upper and lower surfaces at last polaroid and forms.
4. capacitance touch screen liquid crystal display module according to claim 1 is characterized in that the thickness of the transparency conductive electrode of said capacitance touch screen is the 5-500 nanometer.
5. capacitance touch screen liquid crystal display module according to claim 1 is characterized in that the material of the transparency conductive electrode of said capacitance touch screen is tin indium oxide, conducting polymer, CNT or Nano Silver.
6. capacitance touch screen liquid crystal display module according to claim 1 is characterized in that the outside surface of the transparency conductive electrode of said capacitance touch screen is provided with protective seam.
7. capacitance touch screen liquid crystal display module according to claim 6 is characterized in that the material of said protective seam is an epoxy resin, and thickness is the 0.5-50 micron.
8. capacitance touch screen liquid crystal display module according to claim 6 is characterized in that the material of said protective seam is a silicon dioxide, and thickness is the 10-100 nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204035497U CN202285071U (en) | 2011-10-21 | 2011-10-21 | Liquid crystal display module with capacitive touch screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204035497U CN202285071U (en) | 2011-10-21 | 2011-10-21 | Liquid crystal display module with capacitive touch screen |
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| CN202285071U true CN202285071U (en) | 2012-06-27 |
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| CN2011204035497U Expired - Lifetime CN202285071U (en) | 2011-10-21 | 2011-10-21 | Liquid crystal display module with capacitive touch screen |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425323A (en) * | 2013-03-30 | 2013-12-04 | 南昌欧菲光显示技术有限公司 | Polarizing sheet module, preparation method thereof and touch display screen |
| CN103543871A (en) * | 2012-07-12 | 2014-01-29 | 杰圣科技股份有限公司 | Touch panel and manufacturing method thereof |
| CN103576355A (en) * | 2012-07-23 | 2014-02-12 | 天津富纳源创科技有限公司 | Production method for liquid crystal module having touch function |
| CN104508608A (en) * | 2012-09-19 | 2015-04-08 | 富士胶片株式会社 | Method for manufacturing capacitive input device, capacitive input device, as well as image display device provided with same |
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105260052A (en) * | 2015-09-16 | 2016-01-20 | 京东方科技集团股份有限公司 | Cover plate and manufacturing method therefor as well as display apparatus and manufacturing method therefor |
| US9448661B2 (en) | 2013-03-29 | 2016-09-20 | Japan Display Inc. | Electronic device and method for controlling the same |
| CN111596400A (en) * | 2020-06-01 | 2020-08-28 | 安徽方兴光电新材料科技有限公司 | Polaroid with fingerprint identification function and display device thereof |
| CN112269433A (en) * | 2020-11-10 | 2021-01-26 | 深圳市华科创智技术有限公司 | Full-lamination nano-silver capacitor touch control all-in-one machine based on 5G module |
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2011
- 2011-10-21 CN CN2011204035497U patent/CN202285071U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543871A (en) * | 2012-07-12 | 2014-01-29 | 杰圣科技股份有限公司 | Touch panel and manufacturing method thereof |
| CN103576355A (en) * | 2012-07-23 | 2014-02-12 | 天津富纳源创科技有限公司 | Production method for liquid crystal module having touch function |
| CN104508608A (en) * | 2012-09-19 | 2015-04-08 | 富士胶片株式会社 | Method for manufacturing capacitive input device, capacitive input device, as well as image display device provided with same |
| US9448661B2 (en) | 2013-03-29 | 2016-09-20 | Japan Display Inc. | Electronic device and method for controlling the same |
| CN103425323B (en) * | 2013-03-30 | 2016-08-31 | 南昌欧菲光显示技术有限公司 | Polaroid module and preparation method thereof and touch display screen |
| CN103425323A (en) * | 2013-03-30 | 2013-12-04 | 南昌欧菲光显示技术有限公司 | Polarizing sheet module, preparation method thereof and touch display screen |
| CN105204674A (en) * | 2014-06-12 | 2015-12-30 | 宸鸿科技(厦门)有限公司 | Touch control display module |
| CN105204674B (en) * | 2014-06-12 | 2019-01-22 | 宸鸿科技(厦门)有限公司 | A kind of touch-control display module |
| CN105260052A (en) * | 2015-09-16 | 2016-01-20 | 京东方科技集团股份有限公司 | Cover plate and manufacturing method therefor as well as display apparatus and manufacturing method therefor |
| CN105260052B (en) * | 2015-09-16 | 2018-09-18 | 京东方科技集团股份有限公司 | Cover board and preparation method thereof, display device and preparation method thereof |
| US10126895B2 (en) | 2015-09-16 | 2018-11-13 | Boe Technology Group Co., Ltd. | Cover plate and manufacturing method thereof, and manufacturing method of display device |
| CN111596400A (en) * | 2020-06-01 | 2020-08-28 | 安徽方兴光电新材料科技有限公司 | Polaroid with fingerprint identification function and display device thereof |
| CN112269433A (en) * | 2020-11-10 | 2021-01-26 | 深圳市华科创智技术有限公司 | Full-lamination nano-silver capacitor touch control all-in-one machine based on 5G module |
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| C14 | Grant of patent or utility model | ||
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Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150906 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150906 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: BYD 518118 Shenzhen Road, Guangdong province Pingshan New District No. 3009 Patentee before: Biyadi Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen helitai photoelectric Co., Ltd Address before: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee before: SHENZHEN BYD ELECTRONIC COMPONENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20120627 |