CN102722303A - Capacitive touch screen with single-layer structure - Google Patents
Capacitive touch screen with single-layer structure Download PDFInfo
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- CN102722303A CN102722303A CN2012101812695A CN201210181269A CN102722303A CN 102722303 A CN102722303 A CN 102722303A CN 2012101812695 A CN2012101812695 A CN 2012101812695A CN 201210181269 A CN201210181269 A CN 201210181269A CN 102722303 A CN102722303 A CN 102722303A
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- Prior art keywords
- layer structure
- capacitive touch
- touch screen
- cover lens
- ito
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- 239000002356 single layer Substances 0.000 title claims abstract description 27
- 238000005530 etching Methods 0.000 claims abstract description 6
- 238000007639 printing Methods 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 6
- -1 indium tin metal oxide Chemical class 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- GBUCDGDROYMOAN-UHFFFAOYSA-N 1,2,5-trichloro-3-phenylbenzene Chemical compound ClC1=CC(Cl)=C(Cl)C(C=2C=CC=CC=2)=C1 GBUCDGDROYMOAN-UHFFFAOYSA-N 0.000 description 1
- ZGHQUYZPMWMLBM-UHFFFAOYSA-N 1,2-dichloro-4-phenylbenzene Chemical compound C1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 ZGHQUYZPMWMLBM-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The embodiment of the invention discloses a capacitive touch screen with a single-layer structure. The capacitive touch screen with the single-layer structure comprises a display screen and a Cover Lens, wherein the display screen is positioned on the bottommost part and is used for displaying an image; the Cover Lens is arranged on the display screen and is used for protecting the display screen; a nano ITO (indium tin oxide) sensor which is used for sensing a touch point is arranged on one side of the Cover Lens facing to the display screen; and the ITO sensor is manufactured on the Cover Lens by a printing etching, laser or yellow light process. The capacitive touch screen with the single-layer structure disclosed by the embodiment of the invention directly uses the Cover Lens as a substrate of an ITO pattern, so that the raw material cost and the processing cost are reduced, the performance of a product is improved and the thickness and the weight of the product are reduced.
Description
Technical field
The present invention relates to the capacitive touch screen field, relate in particular to a kind of single layer structure 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 capacitive touch screen needs the base material of extra using glass as the ITO figure; The cutting yield is lower, and starting material, processing cost are higher, and the Cover Lens 11 of existing capacitance type touch control screen fits together through optics double faced adhesive tape 15 and the ITO sensor 10 that on glass baseplate, has plated the ITO pattern; Between produces bubble easily; Influence the product yield, and existing capacitive touch screen has two glass baseplates, increased product weight and thickness.
Summary of the invention
Embodiment of the invention technical matters to be solved is, a kind of single layer structure capacitive touch screen is provided, and can reduce starting material, processing cost, improves production capacity, significantly reduces thickness of product and weight simultaneously.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of single layer structure capacitive touch screen, comprising:
Be positioned at bottommost, be used for the display screen of display image; Be located on the said display screen, be used to protect the cover plate Cover Lens of display screen;
Said Cover Lens is provided with the nano indium tin metal oxide ITO sensor that is used to feel touch point towards a side of said display screen, said ITO sensor be through printing etching, radium-shine or gold-tinted technology on Cover Lens.
Wherein, said ITO sensor is made up of the ITO figure of individual layer.
Wherein, said single layer structure capacitive touch screen also comprises: link to each other with said ITO sensor, be used to calculate touch point and repay the flexible PCB of giving processor.
Wherein, said Cover Lens is processed by tempered glass.
The single layer structure capacitive touch screen that the embodiment of the invention provided; It directly utilizes the base material of Cover Lens as the ITO figure; Break the extra glass that adds again of traditional need as the low characteristics of the cutting yield of the base material of ITO figure, reduced starting material and processing cost, and entire product has had only a glass; In terms of existing technologies, product thickness and weight have been reduced.
Further; Single layer structure capacitive touch screen provided by the invention, its ITO figure can be through ripe printing etching, radium-shine or gold-tinted processes, and the volume production yield is easy to control; And Cover Lens and ITO sensor need not through the optics double faced adhesive tape bonding; The Cover Lens that can directly solve existing capacitance type touch control screen fits together through optics double faced adhesive tape and ITO sensor, and between produces the problem of bubble easily, improves the product yield.
Further, single layer structure capacitive touch screen provided by the invention, the ITO sensor is made up of individual layer ITO figure, need not complicated bridging technology, cooperates touch-control IC can realize that single-point adds gesture or function of multi-spot touch.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention 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 embodiments of the present invention, 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 single layer structure capacitive touch screen structural representation that the embodiment of the invention provides.
Embodiment
The single layer structure capacitive touch screen that the embodiment of the invention provided can reduce starting material, processing cost, improves the product production capacity, alleviates thickness of product and weight simultaneously.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, 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 present invention protects.
Referring to Fig. 2, be the single layer structure capacitive touch screen structural representation that the embodiment of the invention provides, this single layer structure capacitive touch screen is as shown in Figure 2, comprising:
Be positioned at bottommost, be used for the display screen 20 of display image, preferred LCD display; Be located on the said display screen 20, be used to protect the cover plate Cover Lens 21 of said display screen 20.
Said Cover Lens21 is provided with the nano indium tin metal oxide ITO sensor 22 that is used to feel touch point towards a side of said display screen 20, said ITO sensor 22 be through printing etching, radium-shine or gold-tinted technology on Cover Lens21.Described ITO sensor 22 is made up of individual layer ITO figure, need not complicated bridging technology, cooperates touch-control IC can realize that single-point adds gesture or function of multi-spot touch.
Further, said single layer structure capacitive touch screen also comprises: link to each other with said ITO sensor 22, be used to calculate touch point and repay the flexible PCB 23 of giving processor.Said Cover Lens21 is processed by tempered glass.
Can know that through foregoing description single layer structure capacitive touch screen provided by the invention has the following advantages at least:
(1) cost of raw material reduces.Existing capacitive touch screen technology needs the base material of extra using a slice eyeglass (Glass) as the ITO figure, and the cutting yield is low, and cost is high.Single layer structure capacitive touch screen provided by the invention directly utilizes the base material of Cover Lens as the ITO figure, has saved an eyeglass, and the ITO figure is individual layer, need not complicated bridging technology, and starting material and processing cost all have remarkable decline.
(2) overall product thickness and weight significantly reduce.The product structure of existing capacitive touch screen is: Cover Lens+ optical cement+ITO Glass+LCD.The product structure of single layer structure capacitive touch screen provided by the invention is: Cover Lens+LCD.Compare, on minimizing thickness and weight, all have superiority
(3) improve the product yield.Prior art Cover Lens fits together through optics double faced adhesive tape and the ITO sensor that on glass baseplate, has plated the ITO pattern, and between produces bubble easily.Single layer structure capacitive touch screen Cover Lens provided by the invention and ITO sensor need not through the optics double faced adhesive tape bonding; Can directly solve the problem that can produce bubble; Improve the product yield; And the ITO figure can be through ripe printing etching, radium-shine or gold-tinted processes, and the volume production yield is easy to control.
It should be noted that; What the present invention described is a kind of product form of single layer structure capacitive touch screen; Other satisfies constructed products according to the invention; 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 present invention's protection.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. a single layer structure capacitive touch screen is characterized in that, comprising:
Be positioned at bottommost, be used for the display screen of display image; Be located on the said display screen, be used to protect the cover plate Cover Lens of display screen;
Said Cover Lens is provided with the nano indium tin metal oxide ITO sensor that is used to feel touch point towards a side of said display screen, said ITO sensor be through printing etching, radium-shine or gold-tinted technology on Cover Lens.
2. single layer structure capacitive touch screen according to claim 1 is characterized in that, said ITO sensor is made up of the ITO figure of individual layer.
3. single layer structure capacitive touch screen according to claim 1 and 2 is characterized in that, said single layer structure capacitive touch screen also comprises: link to each other with said ITO sensor, be used to calculate touch point and repay the flexible PCB of giving processor.
4. single layer structure capacitive touch screen according to claim 3 is characterized in that, said Cover Lens is processed by tempered glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101812695A CN102722303A (en) | 2012-06-04 | 2012-06-04 | Capacitive touch screen with single-layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101812695A CN102722303A (en) | 2012-06-04 | 2012-06-04 | Capacitive touch screen with single-layer structure |
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| Publication Number | Publication Date |
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| CN102722303A true CN102722303A (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101812695A Pending CN102722303A (en) | 2012-06-04 | 2012-06-04 | Capacitive touch screen with single-layer structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019494A (en) * | 2012-12-26 | 2013-04-03 | 深圳市新济达光电科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN103425376A (en) * | 2013-08-29 | 2013-12-04 | 格林精密部件（惠州）有限公司 | Capacitive touch screen |
| CN103885651A (en) * | 2012-12-21 | 2014-06-25 | 苏州市健邦触摸屏技术有限公司 | Modified capacitive touch screen |
| WO2014131227A1 (en) * | 2013-02-26 | 2014-09-04 | 北京京东方光电科技有限公司 | One glass solution touch panel and manufacturing method therefor, and touchscreen display |
| CN104035641A (en) * | 2014-06-13 | 2014-09-10 | 格林精密部件（惠州）有限公司 | Single-glass structured capacitive touch screen based on high temperature and laser etching resistant ink |
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| CN101630216A (en) * | 2009-07-31 | 2010-01-20 | 深圳市旺博科技有限公司 | Flexible anti-interference projection-type capacitor touch screen and production process thereof |
| CN101719044A (en) * | 2010-01-05 | 2010-06-02 | 苏州瀚瑞微电子有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN101727250A (en) * | 2008-10-16 | 2010-06-09 | 统宝光电股份有限公司 | Electronic equipment with capacitive touch sensor |
| CN102033671A (en) * | 2010-10-13 | 2011-04-27 | 深圳欧菲光科技股份有限公司 | Method for manufacturing ultrathin Film capacitive touch screen |
-
2012
- 2012-06-04 CN CN2012101812695A patent/CN102722303A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727250A (en) * | 2008-10-16 | 2010-06-09 | 统宝光电股份有限公司 | Electronic equipment with capacitive touch sensor |
| CN101630216A (en) * | 2009-07-31 | 2010-01-20 | 深圳市旺博科技有限公司 | Flexible anti-interference projection-type capacitor touch screen and production process thereof |
| CN101719044A (en) * | 2010-01-05 | 2010-06-02 | 苏州瀚瑞微电子有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN102033671A (en) * | 2010-10-13 | 2011-04-27 | 深圳欧菲光科技股份有限公司 | Method for manufacturing ultrathin Film capacitive touch screen |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885651A (en) * | 2012-12-21 | 2014-06-25 | 苏州市健邦触摸屏技术有限公司 | Modified capacitive touch screen |
| CN103019494A (en) * | 2012-12-26 | 2013-04-03 | 深圳市新济达光电科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| WO2014131227A1 (en) * | 2013-02-26 | 2014-09-04 | 北京京东方光电科技有限公司 | One glass solution touch panel and manufacturing method therefor, and touchscreen display |
| US10067612B2 (en) | 2013-02-26 | 2018-09-04 | Boe Technology Group Co., Ltd. | One glass solution touch panel and manufacturing method thereof and touch panel display |
| CN103425376A (en) * | 2013-08-29 | 2013-12-04 | 格林精密部件（惠州）有限公司 | Capacitive touch screen |
| CN104035641A (en) * | 2014-06-13 | 2014-09-10 | 格林精密部件（惠州）有限公司 | Single-glass structured capacitive touch screen based on high temperature and laser etching resistant ink |
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Application publication date: 20121010 |