CN202736018U - High-sensitivity large-size capacitive type embedded touch screen - Google Patents
High-sensitivity large-size capacitive type embedded touch screen Download PDFInfo
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- CN202736018U CN202736018U CN 201220470217 CN201220470217U CN202736018U CN 202736018 U CN202736018 U CN 202736018U CN 201220470217 CN201220470217 CN 201220470217 CN 201220470217 U CN201220470217 U CN 201220470217U CN 202736018 U CN202736018 U CN 202736018U
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Abstract
The utility model provides a high-sensitivity large-size capacitive type embedded touch screen which comprises a thin film transistor (TFT) substrate, a polarizer and a glass substrate which is positioned between the TFT substrate and the polarizer, wherein an annular outer shielding layer is arranged on an outer frame of the upper surface of the glass substrate; the inner side of the outer shielding layer is provided with an inner electrode layer; and upper indium tin oxide (ITO) conductive layers are arranged on the outer shielding layer, the inner electrode layer and the upper surface of the glass substrate. The annular outer shielding layer is arranged on the outer frame of the upper surface of the glass substrate, the interference generated by humidity and electromagnetic waves is effectively shielded, and the interference on the inner electrode layer is avoided; and meanwhile, a lower ITO conductive layer is arranged between a color filter layer and a liquid crystal layer, so that the light transmittance of the glass substrate is effectively improved. Compared with the prior art, the high-sensitivity large-size capacitive type embedded touch screen has the advantages that the manufacturing limitation of a large-size capacitive screen is broken, and the high-sensitivity large-size capacitive type embedded touch screen has the advantages of simple structure, zero drift during use, high sensitivity and the like.
Description
Technical field
The utility model relates to capacitive touch screen, and what be specifically related to is the embedded touch-screen of a kind of high sensitivity large size capacitive.
Background technology
Present touch screen technology is broadly divided into four classes according to sensor type: condenser type, resistance-type, infrared type and sound wave type.Wherein therefore capacitive touch screen is widely used on the products such as mobile phone, panel computer owing to support the advantages such as multi-point touch, registration, long service life.
Along with the increase in demand of people to screen sizes products such as televisors, and by the selection control of touch-control television display screen realization to TV programme and menu, increasing user's experience sense, therefore numerous touch-screen manufacturing enterprise begins to make large size capacitive touch screen and it is applied on the televisor.But because present capacitive touch screen is difficult to the rear end signal decay of control ITO, therefore when the size of touch-screen was larger, its situation that is subject to humidity and Electromagnetic Interference was just more outstanding, during use, produces easily and drifts about, and the sensitivity meeting descends greatly.
The utility model content
The purpose of this utility model is to provide a kind of high sensitivity large size capacitive embedded touch-screen, the easy generation drift that occurs because being subject to humidity and Electromagnetic Interference to solve present large size capacitive touch screen, the problem that sensitivity descends greatly.
The purpose of this utility model is achieved through the following technical solutions.
The embedded touch-screen of a kind of high sensitivity large size capacitive, comprise TFT substrate (1), polaroid (10) and be positioned at TFT substrate (1) and polaroid (10) between glass substrate (6), the outside frame of described glass substrate (6) upper surface is provided with annular external shielding layer (7), this external shielding layer (7) inboard is provided with inner electrode layer (8), is provided with ITO conductive layer (11) on described external shielding layer (7), inner electrode layer (8) and glass substrate (6) upper surface.
Preferably, also be provided with silicon dioxide layer of protection (9) between described upper ITO conductive layer (11) and the polaroid (10).
Preferably, be disposed with chromatic filter layer (4), lower ITO conductive layer (3) and liquid crystal layer (2) between described glass substrate (6) and the TFT substrate (1) from top to bottom.
Preferably, also be provided with black matrix" (5) in the described chromatic filter layer (4).
The embedded touch-screen of high sensitivity large size capacitive that the utility model provides, by at the outside of glass substrate upper surface frame annular external shielding layer being set, interference to humidity and electromagnetic wave generation effectively shields, avoid inner electrode layer is produced interference, between chromatic filter layer and liquid crystal layer, increased simultaneously time ITO conductive layer, Effective Raise the transmittance of glass substrate.Compared with prior art, the utlity model has simple in structure, when using without advantages such as drift, sensitivity height.
Description of drawings
Fig. 1 is the cut-open view of the embedded touch-screen of the utility model high sensitivity large size capacitive.
Identifier declaration among the figure: TFT substrate 1, liquid crystal layer 2, lower ITO conductive layer 3, chromatic filter layer 4, black matrix" 5, glass substrate 6, external shielding layer 7, inner electrode layer 8, silicon dioxide layer of protection 9, polaroid 10, upper ITO conductive layer 11.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also shown in Figure 1ly, Fig. 1 is the structural representation of the embedded touch-screen of the utility model high sensitivity large size capacitive.The utility model provides the embedded touch-screen of a kind of high sensitivity large size capacitive, is mainly used in solving the easy generation drift that present large size capacitive touch screen occurs because being subject to humidity and Electromagnetic Interference, the problem that sensitivity descends greatly.
Wherein the embedded touch-screen of the utility model high sensitivity large size capacitive mainly includes TFT substrate 1, glass substrate 6 and polaroid 10.Be disposed with from bottom to top liquid crystal layer 2, lower ITO conductive layer 3 and chromatic filter layer 4 between TFT substrate 1 and the glass substrate 6, and described chromatic filter layer 4 is provided with black matrix" 5.
Be disposed with from bottom to top ITO conductive layer 11 and silicon dioxide layer of protection 9 between glass substrate 6 and the polaroid 10.Wherein be provided with the external shielding layer 7 of an annular at the outside frame of glass substrate 6 upper surfaces, and be provided with an inner electrode layer 8 in the inboard of this external shielding layer 7, inner electrode layer 8 passes through the FPC connection to peripheral control unit, can shield producing to disturb because of humidity and electromagnetic wave by external shielding layer 7, produce when preventing from the user used and disturb, to improve the sensitivity of screen.
Wherein said silicon dioxide layer of protection 9 can prevent that sodion from spreading to polaroid 10 places between upper ITO conductive layer 11 and polaroid 10; Upper ITO conductive layer 11 and lower ITO conductive layer 3 all are on the basis of sodium calcium base or silicon boryl glass substrate 6, utilize the method for magnetron sputtering to plate that indium oxide layer tin film manufactures.
Wherein said external shielding layer 7 and inner electrode layer 8 are made by the offset printing method, in glass substrate 6 moulding.Black matrix" 5 in chromatic filter layer 4 can improve color contrast, and can for the alignment mark of RGB making, also can effectively reduce light leak simultaneously.
In summary, the utility model is by arranging annular external shielding layer at the outside of glass substrate upper surface frame, interference to humidity and electromagnetic wave generation effectively shields, avoid inner electrode layer is produced interference, between chromatic filter layer and liquid crystal layer, increased simultaneously time ITO conductive layer, Effective Raise the transmittance of glass substrate.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. embedded touch-screen of high sensitivity large size capacitive, comprise TFT substrate (1), polaroid (10) and be positioned at TFT substrate (1) and polaroid (10) between glass substrate (6), the outside frame that it is characterized in that described glass substrate (6) upper surface is provided with annular external shielding layer (7), this external shielding layer (7) inboard is provided with inner electrode layer (8), is provided with ITO conductive layer (11) on described external shielding layer (7), inner electrode layer (8) and glass substrate (6) upper surface.
2. the embedded touch-screen of high sensitivity large size capacitive according to claim 1 is characterized in that also being provided with silicon dioxide layer of protection (9) between described upper ITO conductive layer (11) and the polaroid (10).
3. the embedded touch-screen of high sensitivity large size capacitive according to claim 1 is characterized in that being disposed with between described glass substrate (6) and the TFT substrate (1) chromatic filter layer (4), lower ITO conductive layer (3) and liquid crystal layer (2) from top to bottom.
4. the embedded touch-screen of high sensitivity large size capacitive according to claim 3 is characterized in that also being provided with in the described chromatic filter layer (4) black matrix" (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470217 CN202736018U (en) | 2012-09-14 | 2012-09-14 | High-sensitivity large-size capacitive type embedded touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470217 CN202736018U (en) | 2012-09-14 | 2012-09-14 | High-sensitivity large-size capacitive type embedded touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736018U true CN202736018U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220470217 Expired - Fee Related CN202736018U (en) | 2012-09-14 | 2012-09-14 | High-sensitivity large-size capacitive type embedded touch screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103246402A (en) * | 2013-05-17 | 2013-08-14 | 汕头超声显示器技术有限公司 | Display device with integrated touch control function |
| CN105073334A (en) * | 2013-02-21 | 2015-11-18 | 万佳雷射有限公司 | Method for forming an electrode structure for a capacitive touch sensor |
| CN108170325A (en) * | 2018-01-08 | 2018-06-15 | 深圳豪威显示科技有限公司 | Integral type capacitance touch structure and touch screen |
| US10203817B2 (en) | 2013-02-21 | 2019-02-12 | M-Solv Ltd. | Method for forming an electrode structure for a capacitive touch sensor |
-
2012
- 2012-09-14 CN CN 201220470217 patent/CN202736018U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105073334A (en) * | 2013-02-21 | 2015-11-18 | 万佳雷射有限公司 | Method for forming an electrode structure for a capacitive touch sensor |
| CN105073334B (en) * | 2013-02-21 | 2018-01-16 | 万佳雷射有限公司 | The method for forming the electrode structure for capacitive touch sensors |
| US10203817B2 (en) | 2013-02-21 | 2019-02-12 | M-Solv Ltd. | Method for forming an electrode structure for a capacitive touch sensor |
| US10421157B2 (en) | 2013-02-21 | 2019-09-24 | M-Solv Ltd. | Method for forming an electrode structure for a capacitive touch sensor |
| CN103246402A (en) * | 2013-05-17 | 2013-08-14 | 汕头超声显示器技术有限公司 | Display device with integrated touch control function |
| CN108170325A (en) * | 2018-01-08 | 2018-06-15 | 深圳豪威显示科技有限公司 | Integral type capacitance touch structure and touch screen |
| CN108170325B (en) * | 2018-01-08 | 2024-03-26 | 深圳豪威显示科技有限公司 | Integrated capacitive touch structure and touch screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130914 |