CN202615364U - In-cell capacitor touch screen - Google Patents
In-cell capacitor touch screen Download PDFInfo
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- CN202615364U CN202615364U CN 201220183783 CN201220183783U CN202615364U CN 202615364 U CN202615364 U CN 202615364U CN 201220183783 CN201220183783 CN 201220183783 CN 201220183783 U CN201220183783 U CN 201220183783U CN 202615364 U CN202615364 U CN 202615364U
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- liquid crystal
- touch screen
- capacitive touch
- display screen
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Abstract
The utility model discloses a In-cell capacitor touch screen which comprises a display screen for displaying an image, wherein the display screen mainly comprises a liquid crystal panel, the liquid crystal panel comprises colored filter glass, film transistor glass, a liquid crystal unit and a nano indium and tin oxide (ITO) sensor used for sensing a touch point, the ITO sensor is arranged in a liquid crystal unit combining the colored filter glass and the film transistor glass. A Cover Lens for protecting the display screen is arranged on the display screen. The In-cell capacitor touch screen disclosed by the utility model has the advantages of reducing raw material cost, increasing yield, reducing total thickness and weight, reducing operation procedures and increasing light transmittance.
Description
Technical field
The utility model relates to the capacitive touch screen field, relates in particular to a kind of embedded (In-cell) capacitive touch screen.
Background technology
Touch screen is the compound touch-screen that is used on the electronic products such as mobile phone, e-book, digital camera, and wherein capacitance type touch control screen is the most frequently used a kind of in the touch screen.
Capacitance type touch control screen is to utilize the induction by current of human body to carry out work.Capacitance type touch control screen is four layers of compound glass screen normally; When user's finger touches on capacitance type touch control screen; Because people's bulk electric field, user and capacitance touching control screen surfaces form with a coupling capacitance (for high-frequency current, electric capacity can be regarded as conductor); So finger siphons away a very little electric current from the touch point of capacitance touching control screen surfaces, this electric current divides the electrode on four jiaos from capacitance type touch control screen and flows out.The electric current of these four electrodes of flowing through is directly proportional with the distance of pointing four jiaos, and controller draws touch point position through the accurate Calculation to these four current ratios.
Existing capacitance type touch control screen is as shown in Figure 1, generally includes following main element: the nano indium tin metal oxide ITO sensor 10 that on glass baseplate, has plated indium tin metal oxide (ITO, Indium Tin Oxides) pattern; The cover plate (Cover Lens) 11 that the ITO sensor is shielded; The optics double faced adhesive tape 15 that is used for bonding ITO sensor 10 and Cover Lens 11; Be used to calculate touch point and repay the flexible PCB 12 of giving processor, and the display screen 13 that is used for display image.
Existing capacitance type touch control screen is placed on display screen 13 with ITO sensor 10; ITO sensor 10 is bonding with Cover Lens 11 usefulness optics double faced adhesive tapes 15, between two kinds, produces bubble easily, and yields is lower; Reduce production capacity, increased the cost of raw material and product weight.
Existing capacitance type touch control screen technology light source sends from display screen 13, and through ITO sensor 10, optics double faced adhesive tape 15 and 11 3 kinds of transparent materials of Cover Lens, light source has reduced the transmittance of product through absorbing layer by layer and a refraction meeting loss part.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of In-cell capacitive touch screen is provided, and can reduce the cost of raw material, improves production capacity, increases the transmittance of product, reduces flow chart, alleviates product weight and thickness simultaneously.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of In-cell capacitive touch screen, comprising:
Be used for the display screen of display image, mainly constitute by liquid crystal panel; Said liquid crystal panel comprises: colorized optical filtering sheet glass, membrane transistor glass, liquid crystal cells and the nano indium tin metal oxide ITO sensor that is used for the sensing touch point;
Said liquid crystal cells is included in the middle of said colorized optical filtering sheet glass and the said membrane transistor glass surface;
Said ITO sensor is arranged in the said liquid crystal cells.
Wherein, said In-cell capacitive touch screen also comprises: be arranged on the cover plate (Cover Lens) that is used to protect said display screen on the said display screen.
Wherein, said In-cell capacitive touch screen also comprises: said colored filter glass top is provided with horizontal polariscope; Said membrane transistor glass bottom is provided with vertical polariscope.
Wherein, said cover plate (Cover Lens) is processed by transparent steel glass material.
A kind of In-cell capacitive touch screen that the utility model embodiment provides; Be that touch control component directly is made in the liquid crystal panel in the colorized optical filtering sheet glass and membrane transistor glass liquid crystal cells altogether; And existing capacitive touch screen fits together through the optics double faced adhesive tape Cover Lens with the ITO sensor; Comparatively speaking saved the operation that existing capacitive touch screen is fitted, reduced the cost of raw material, all had superiority aspect overall product thickness and the weight alleviating.
Further; The In-cell capacitive touch screen that the utility model provides has saved bonding process, and existing capacitive touch screen is when fitting Cover Lens and ITO sensor through the optics double faced adhesive tape; Between produces bubble easily, and yields is lower.Comparatively speaking, improved production capacity.
Further; The In-cell capacitive touch screen that the utility model provides; After light source sends from display screen, only, compare existing capacitive touch screen through Cover Lens transparent material; Through ITO sensor, optics double faced adhesive tape and three kinds of transparent materials of Cover Lens, transmittance significantly improved after light source sent from display screen.
Further, the embedded In-cell capacitive touch screen that the utility model provides has saved bonding process, has reduced operating cost, and the equipment of bonding process can be saved.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing capacitive touch screen structural representation.
Fig. 2 is the In-cell capacitive touch screen structural representation that the utility model provides.
Fig. 3 is the In-cell capacitive touch screen display screen liquid crystal panel structure decomposing schematic representation that the utility model provides.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
Referring to Fig. 2; The In-cell capacitive touch screen structural representation that provides for the utility model; This In-cell capacitive touch screen is as shown in Figure 2; Comprise display screen 21 and be arranged at the cover plate (Cover Lens) 22 that is used to protect display screen 21 on the display screen 21, said Cover Lens22 is preferably processed by transparent tempered glass.
Display screen 21 is used for display image, preferred LCD display.
More concrete; As shown in Figure 3; The In-cell capacitive touch screen display screen liquid crystal panel 210 STRUCTURE DECOMPOSITION synoptic diagram that provide for the utility model; Said liquid crystal panel 210 comprises: be used for the nano indium tin metal oxide ITO sensor 213 of sensing touch point, colorized optical filtering sheet glass 212, membrane transistor glass 214 and liquid crystal cells 216.
It is middle with said membrane transistor glass 214 surfaces that said liquid crystal cells 216 is included in said colorized optical filtering sheet glass 212.
Described ITO sensor 213 is arranged in the liquid crystal cells 216, is used for the sensing touch point.Because of having saved bonding process, the cost of raw material is reduced, alleviated the general thickness and the weight of product simultaneously.
Further, the liquid crystal panel 210 of the described In-cell capacitive touch screen of the utility model also comprises: said colorized optical filtering sheet glass 212 tops are provided with horizontal polariscope 211; Said membrane transistor glass 214 bottoms are provided with vertical polariscope 215.
Further; Developed optimized touch pattern on the described ITO sensor 213; Import the adjustment of special drive controlling signal and array processing procedure in the described liquid crystal panel 210, can solve touch-control signal and the mutual interference problem of liquid crystal drive signal, improved product sensitivity.
Can know that through foregoing description the In-cell capacitive touch screen that the utility model provides has the following advantages at least:
(1) cost of raw material reduces.Existing capacitive touch screen technology is that Cover Lens fits together with the ITO sensor through the optics double faced adhesive tape.The In-cell capacitive touch screen that the utility model provides is that the ITO figure directly is made in the liquid crystal panel, no longer needs bonding process.
(2) overall product thickness and weight reduce.The product structure of existing capacitive touch screen is: Cover Lens+ optics double faced adhesive tape+ITO sensor+LCD.The product structure of the In-cell capacitive touch screen that the utility model provides is: Cover Lens+LCD.Comparatively speaking, on overall product thickness and weight, all have superiority.
(3) improve production capacity, reduced flow chart.Existing capacitive touch screen is when fitting Cover Lens and ITO sensor through the optics double faced adhesive tape, between produces bubble easily, and yields is lower.The In-cell capacitive touch screen that the utility model provides has saved bonding process; Improved production capacity; Reduced flow chart, had remarkable advantages aspect product production capacity and the cost, on cost price, got the mastery for market advances capacitance type touch control screen to replace resistance type touch control screen fast.
(4) improve properties of product, increased the transmittance of product.Transmittance is a very important index in the product test in the touch screen technology.Existing capacitance type touch control screen technology light source sends from LCD; Through ITO sensor, optics double faced adhesive tape and three kinds of transparent materials of Cover Lens; Light source, arrives in the process of human eye after the In-cell capacitive touch screen light source that the utility model provides sends from LCD through absorbing layer by layer and a refraction meeting loss part; Only through Cover Lens transparent material, transmittance significantly increases.
It should be noted that; What the utility model was described is a kind of product form of In-cell capacitive touch screen; Other satisfies the said constructed products of the utility model; Not influence the factor of product performance inequality even material, device name, outward appearance, device are put sequential scheduling, still belongs to the scope of the utility model protection.
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (4)
1. an embedded In-cell capacitive touch screen comprises the display screen that is used for display image, mainly is made up of liquid crystal panel; It is characterized in that said liquid crystal panel comprises: the colorized optical filtering sheet glass, membrane transistor glass is used to change liquid crystal cells and the nano indium tin metal oxide ITO sensor that is used for the sensing touch point of the polarized condition of light;
Said liquid crystal cells is included in the middle of said colorized optical filtering sheet glass and the said membrane transistor glass surface;
Said ITO sensor is arranged in the said liquid crystal cells.
2. a kind of In-cell capacitive touch screen according to claim 1 is characterized in that said In-cell capacitive touch screen also comprises: be arranged on the cover plate that is used to protect said display screen on the said display screen.
3. a kind of In-cell capacitive touch screen according to claim 1 is characterized in that, said colored filter glass top is provided with horizontal polariscope; Said membrane transistor glass bottom is provided with vertical polariscope.
4. a kind of In-cell capacitive touch screen according to claim 1 and 2 is characterized in that said cover plate is processed by transparent tempered glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183783 CN202615364U (en) | 2012-04-26 | 2012-04-26 | In-cell capacitor touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183783 CN202615364U (en) | 2012-04-26 | 2012-04-26 | In-cell capacitor touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615364U true CN202615364U (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220183783 Expired - Lifetime CN202615364U (en) | 2012-04-26 | 2012-04-26 | In-cell capacitor touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729101A (en) * | 2013-12-16 | 2014-04-16 | 格林精密部件（惠州）有限公司 | Externally-embedded-type capacitive touch screen |
| CN106527832A (en) * | 2016-09-19 | 2017-03-22 | 深圳市众诚达应用材料科技有限公司 | ATO film-based InCell integrated touch screen and manufacturing method thereof |
-
2012
- 2012-04-26 CN CN 201220183783 patent/CN202615364U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103729101A (en) * | 2013-12-16 | 2014-04-16 | 格林精密部件（惠州）有限公司 | Externally-embedded-type capacitive touch screen |
| CN106527832A (en) * | 2016-09-19 | 2017-03-22 | 深圳市众诚达应用材料科技有限公司 | ATO film-based InCell integrated touch screen and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 516025 Huizhou City, Guangdong Province, the three digital Industrial Park Patentee after: Guangdong Green precision parts Limited by Share Ltd Address before: 516025 Huizhou City, Huizhou Province, Huicheng District, the three digital Industrial Park Patentee before: Green Precision Components (Huizhou) Co. Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |