CN102681741A - Single layer Film double layer ITO (indium tin oxide) structure capacitor touch control screen - Google Patents
Single layer Film double layer ITO (indium tin oxide) structure capacitor touch control screen Download PDFInfo
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- CN102681741A CN102681741A CN2012101518998A CN201210151899A CN102681741A CN 102681741 A CN102681741 A CN 102681741A CN 2012101518998 A CN2012101518998 A CN 2012101518998A CN 201210151899 A CN201210151899 A CN 201210151899A CN 102681741 A CN102681741 A CN 102681741A
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Abstract
The invention embodiment discloses a single layer Film double layer ITO (indium tin oxide) structure capacitor touch control screen. The single layer Film double layer ITO structure capacitor touch control screen comprises a display screen which is positioned on the bottommost layer and is used for displaying an image, a Cover lens which is positioned on the uppermost layer and is used for protecting an ITO sensor, wherein the ITO sensor is positioned between the display screen and the Cover lens; the ITO sensor comprises two layers, wherein the first ITO layer is an ITO Film with a special ITO graph by processing a Film coated with the whole surface ITO through a printing etching process; and the second ITO layer is specific ITO graph layer facing to the display screen on the Cover lens. The single layer Film double layer ITO structure capacitor touch control screen disclosed by the embodiment of the invention can reduce raw materials and processing cost under the condition of guaranteeing a touch control effect, can improve product tenacity and productive capacity, and meanwhile lighten the thickness and weight of a product.
Description
Technical field
The present invention relates to the capacitive touch screen field, relate in particular to a kind of individual layer film (Film) 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 utilizes glass as base material fully, and the cutting yield is lower, and starting material, processing cost are higher.In addition; The characteristic of glass is frangible; The total ITO sensor 10 of existing capacitance type touch control screen and 11 two tempered glass of Cover Lens, it is bigger to fall the broken probability in back, and the Cover Lens 11 of existing capacitance type touch control screen fits together through optics double faced adhesive tape and the ITO sensor that on glass baseplate, has plated the ITO pattern; Between produces bubble easily, influences the product yield.
Summary of the invention
Embodiment of the invention technical matters to be solved is, the double-deck ITO structure capacitive of a kind of individual layer Film touch screen is provided, and can reduce starting material, processing cost, improves toughness of products and production capacity, alleviates thickness of product and weight simultaneously.
In order to solve the problems of the technologies described above, the embodiment of the invention provides the double-deck ITO structure capacitive of a kind of individual layer Film touch screen, comprising:
Be positioned at the bottom, be used for the display screen of display image; Be positioned at the superiors, be used to protect the Cover Lens of nano indium tin metal oxide ITO sensor;
The ITO sensor is used for the sensing touch point between said display screen and Cover Lens; Said ITO sensor comprises two-layer, and an ITO layer is through printing etch process, the ITO Film that has specific ITO figure that the Film that is coated with whole ITO is processed into; The 2nd ITO layer is the specific I TO graph layer that plates towards a side of said display screen at Cover Lens.
Wherein, a said ITO layer is in the side of said Film towards said display screen; Said Film is bonded together through the 2nd ITO layer on optics double faced adhesive tape and the Cover Lens towards the side of said Cover Lens.
Wherein, a said ITO layer is in the side of said Film towards said Cover Lens; And the 2nd ITO layer through on optics double faced adhesive tape and the Cover Lens is bonded together.
Wherein, the double-deck ITO structure capacitive of said individual layer Film 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.
Wherein, the ITO figure live width of a said ITO layer is more wide than the ITO graph line of the 2nd ITO layer.
The double-deck ITO structure capacitive of the individual layer Film that the embodiment of the invention provided touch screen; It utilizes the base material of Film as the ITO figure; Broken the tradition with glass as the low characteristics of the cutting yield of the base material of ITO figure; Reduce starting material and processing cost, reduced product thickness and weight all has superiority.
Further, the double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen, its ITO Film can be through ripe etch process processing; The ITO figure at the Cover Lens back side removes the traditional gold-tinted technology of utilization; Also can use same etch process to be processed into, the volume production yield is easy to control, and Cover Lens and ITO sensor are when fitting through the optics double faced adhesive tape; Because of the raising of Film adhesion, the bubble fraction defective reduces.
Further; The double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen is with the base material of Film as one deck ITO figure; And existing capacitive touch screen is fully with the base material of glass as the ITO figure; The characteristic of glass is frangible, and Comparatively speaking, the double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen has improved the toughness of product.
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 double-deck ITO structure capacitive of the individual layer Film touch screen structural representation that the embodiment of the invention provides;
Fig. 3 is the double-deck ITO structure capacitive of another individual layer Film touch screen structural representation that the embodiment of the invention provides.
Embodiment
The double-deck ITO structure capacitive of the individual layer Film that the embodiment of the invention provided touch screen can reduce starting material, processing cost, improves toughness of products and 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 double-deck ITO structure capacitive of the individual layer Film touch screen structural representation that the embodiment of the invention provides, the double-deck ITO structure capacitive of this individual layer Film touch screen is as shown in Figure 2, comprising:
Be positioned at the bottom, be used for the display screen 20 of display image; Be positioned at the superiors, be used to protect the Cover Lens 21 of ITO sensor.
The ITO sensor is used for the sensing touch point between said display screen 20 and Cover Lens21; Said ITO sensor comprises two-layer, and an ITO layer 22 is through printing etch process, the ITO Film that has specific ITO figure that the Film that is coated with whole ITO 23 is processed into; The 2nd ITO layer 24 is the specific I TO graph layers that plate towards a side of said display screen at CoverLens21.
Further, an ITO layer 22 has two kinds of different set-up modes on Film 23, and first kind is that a said ITO layer 22 is arranged on the side (as shown in Figure 2) of said Film23 towards said display screen 20; Said Film23 is bonded together through the 2nd ITO layer 24 on optics double faced adhesive tape 25 and the Cover Lens21 towards the side of said Cover Lens21.Another kind is that a said ITO layer 22 is in the side (as shown in Figure 3) of said Film23 towards said Cover Lens21; And the 2nd ITO layer 24 through on optics double faced adhesive tape 25 and the Cover Lens21 is bonded together.
Further, the ITO figure live width of a said ITO layer 22 is more wide than the ITO graph line of the 2nd ITO layer 24.The figure live width broad of the one ITO layer 22 so resistance is little, can be used as separation layer; The 2nd ITO layer 2 live width are thinner, Drive Layer arranged as isolation, receive the disturbing effect of display screen little, and the touch-control effect is able to guarantee.
More concrete, the double-deck ITO structure capacitive of said individual layer Film touch screen also comprises: link to each other with said ITO sensor, be used to calculate touch point and repay the flexible PCB 26 of giving processor.Said Cover Lens is processed by tempered glass.
Can know that through foregoing description the double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen has the following advantages at least:
(1) cost of raw material reduces.Existing capacitive touch screen technology is utilized the base material of eyeglass (Glass) as the ITO figure fully, and the cutting yield is low, and cost is high.The double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen is to utilize the base material of film (Film) as one deck ITO figure, and starting material and processing cost all have remarkable decline.
(2) overall product thickness and weight reduce.The product structure of existing capacitive touch screen is: CoverLens+ optical cement+ITO Glass+LCD.The product structure of the double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen is: Cover Lens+ optical cement+ITO Film+LCD.ITO Film compares with ITO Glass, on thickness and weight, all has superiority.
(3) the touch-control effect is able to guarantee.The double-deck ITO structure capacitive of individual layer Film provided by the invention touch screen has still adopted double-deck ITO graphical sensory device, supports multi-point touch equally and can keep touch-control sensitivity.
(4) toughness of product promotes.The touch screen drop test is an important link in the product test.The characteristic of glass is exactly frangible, and existing capacitance type touch control screen has two tempered glass, and it is bigger to fall the broken probability in back.Comparatively speaking, individual layer Film structure capacitive touch screen provided by the invention adopts the combination of a sheet glass and a slice Film then to promote the toughness of product greatly.
It should be noted that; What the present invention described is a kind of product form of the double-deck ITO structure capacitive of individual layer Film 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 (6)
1. an individual layer film Film structure capacitive touch screen is characterized in that, comprising:
Be positioned at the bottom, be used for the display screen of display image; Be positioned at the superiors, be used to protect the cover plate Cover Lens of nano indium tin metal oxide ITO sensor;
The ITO sensor is used for the sensing touch point between said display screen and Cover Lens; Said ITO sensor comprises two-layer, and an ITO layer is through printing etch process, the ITO Film that has specific ITO figure that the Film that is coated with whole ITO is processed into; The 2nd ITO layer is the specific I TO graph layer that plates towards a side of said display screen at Cover Lens.
2. the double-deck ITO structure capacitive of individual layer Film as claimed in claim 1 touch screen is characterized in that a said ITO layer is in the side of said Film towards said display screen; Said Film is bonded together through the 2nd ITO layer on optics double faced adhesive tape and the Cover Lens towards the side of said CoverLens.
3. the double-deck ITO structure capacitive of individual layer Film as claimed in claim 1 touch screen is characterized in that a said ITO layer is in the side of said Film towards said Cover Lens; And the 2nd ITO layer through on optics double faced adhesive tape and the Cover Lens is bonded together.
4. like claim 2 or the double-deck ITO structure capacitive of 3 described individual layer Film touch screen; It is characterized in that; The double-deck ITO structure capacitive of said individual layer Film 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.
5. the double-deck ITO structure capacitive of individual layer Film as claimed in claim 4 touch screen is characterized in that said Cover Lens is processed by tempered glass.
6. the double-deck ITO structure capacitive of individual layer Film as claimed in claim 4 touch screen is characterized in that the ITO figure live width of a said ITO layer is more wide than the ITO graph line of the 2nd ITO layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101518998A CN102681741A (en) | 2012-05-15 | 2012-05-15 | Single layer Film double layer ITO (indium tin oxide) structure capacitor touch control screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101518998A CN102681741A (en) | 2012-05-15 | 2012-05-15 | Single layer Film double layer ITO (indium tin oxide) structure capacitor touch control screen |
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| CN102681741A true CN102681741A (en) | 2012-09-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722302A (en) * | 2012-05-29 | 2012-10-10 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film double-faced ITO (indium tin oxide) structure |
| 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 |
| CN104007863A (en) * | 2013-02-26 | 2014-08-27 | 北京京东方光电科技有限公司 | Single-layer touch screen and manufacturing method thereof and touch screen displayer |
| CN104020903A (en) * | 2014-05-22 | 2014-09-03 | 格林精密部件（惠州）有限公司 | Novel integrated capacitive touch screen |
| CN113010034A (en) * | 2020-12-15 | 2021-06-22 | 苏州伟之佳光电科技有限公司 | Production method of touch display |
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| CN201369036Y (en) * | 2009-03-05 | 2009-12-23 | 意力(广州)电子科技有限公司 | Projection-type capacitor touch screen |
| EP2169520A2 (en) * | 2008-09-26 | 2010-03-31 | Tovis Co. Ltd. | Touch panel using tempered glass |
| CN102221948A (en) * | 2011-05-11 | 2011-10-19 | 深圳市骏达光电有限公司 | Capacitive touch screen |
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2012
- 2012-05-15 CN CN2012101518998A patent/CN102681741A/en active Pending
Patent Citations (3)
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| EP2169520A2 (en) * | 2008-09-26 | 2010-03-31 | Tovis Co. Ltd. | Touch panel using tempered glass |
| CN201369036Y (en) * | 2009-03-05 | 2009-12-23 | 意力(广州)电子科技有限公司 | Projection-type capacitor touch screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722302A (en) * | 2012-05-29 | 2012-10-10 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film double-faced ITO (indium tin oxide) structure |
| 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 |
| CN104007863A (en) * | 2013-02-26 | 2014-08-27 | 北京京东方光电科技有限公司 | Single-layer touch screen and manufacturing method thereof and touch screen displayer |
| 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 |
| CN104020903A (en) * | 2014-05-22 | 2014-09-03 | 格林精密部件（惠州）有限公司 | Novel integrated capacitive touch screen |
| CN113010034A (en) * | 2020-12-15 | 2021-06-22 | 苏州伟之佳光电科技有限公司 | Production method of touch display |
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Application publication date: 20120919 |