CN103412690A - Projection-type multi-point capacitance touch screen - Google Patents
Projection-type multi-point capacitance touch screen Download PDFInfo
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- CN103412690A CN103412690A CN2013102225630A CN201310222563A CN103412690A CN 103412690 A CN103412690 A CN 103412690A CN 2013102225630 A CN2013102225630 A CN 2013102225630A CN 201310222563 A CN201310222563 A CN 201310222563A CN 103412690 A CN103412690 A CN 103412690A
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Abstract
The invention discloses a projection-type multi-point capacitance touch screen. The projection-type multi-point capacitance touch screen comprises a tempered glass panel, a first optical refractive index matching layer is arranged below the tempered glass panel in an attaching mode, a first ITO film layer is arranged below the optical refractive index matching layer, a second ITO film layer is arranged below optical glass, a SiOx insulation layer is arranged below the second ITO film layer in an attaching mode, the tempered glass panel and the upper portion of the optical glass are bonded through an optical bonding layer, the first ITO film layer is an ITO film layer in the X direction, and the second ITO film layer is an ITO film layer in the Y direction. Because only one side of the glass is coated with the ITO layer films once, the processing process is simplified; the whole plane of the glass is coated with the SiOx insulation layer in a non-picture mode without affecting ITO coatings with special pictures, and therefore the rate of finished products is improved, and manufacturing cost is reduced.
Description
Technical field
The invention belongs to the projection-type multiple point touching capacitance plate of mutual capacitance induction technology, more precisely a kind of projection-type multiple point touching capacitance plate.
Background technology
Along with the widespread use of capacitance plate and the exploitation of market potential thereof, the capacitive touch screen technology is becoming a common technology of serving people's daily life. be applied to nearly all electronic product, from notebook computer, smart mobile phone, the handheld devices such as panel computer, to consumption electronic product, arrive again the large small household appliances such as washing machine, air-conditioning, refrigerator, water heater, even on industrial instrument, also adopt the capacitance touch induction technology.
At present, it is the many of medium that projected capacitive on market screen adopts glass. this structure is that the one side at glass repeatedly plates layered coating, comprises tin indium oxide (ITO) layer (directions X) of electrically conducting transparent, the SiOx insulation course, ITO layer (Y-direction), metal wire, the SiOx insulation course, then fit on tempered glass with transparent optical cement, this repeatedly plated film repeatedly, cause processing technology complicated, yields descends, and cost rises.
Summary of the invention
The purpose of this invention is to provide a kind of projection-type multiple point touching capacitance plate, it can solve prior art.
The present invention is by the following technical solutions: a kind of projection-type multiple point touching capacitance plate, comprise a toughened glass panel, the below of the described toughened glass panel light refractive index matching layer that has been sticked, the below of described light refractive index matching layer is provided with one first ito thin film layer; The below of the one optical glass one second ito thin film layer that has been sticked, the below of described the second ito thin film layer SiOx insulation course that has been sticked, the top of described toughened glass panel and described optical glass is bonding by the optics glue-line, and described the first ito thin film layer and described the second ito thin film layer are respectively the ito thin film layer on X, Y-direction.
Described optics glue-line is the transparent optical glue-line.
Advantage of the present invention is: due to when the ITO of the being layer plated film on glass, only one side is done to single treatment, simplified processing technology; The SiOx insulation course is the whole plane treatment that there is no figure, can not affect the ITO of special graph film plating layer is arranged, so yield rate is improved and manufacturing cost is reduced.
The accompanying drawing explanation
The present invention is described in detail below in conjunction with embodiment and accompanying drawing, wherein:
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, further set forth the specific embodiment of the present invention:
As shown in Figure 1, a kind of projection-type multiple point touching capacitance plate, comprise a toughened glass panel 10, the below of the described toughened glass panel light refractive index matching layer 20 that has been sticked, and the below of described light refractive index matching layer is provided with one first ito thin film layer 30; The below of the one optical glass 50 one second ito thin film layer 60 that has been sticked, the below of described the second ito thin film layer SiOx insulation course 70 that has been sticked, the top of described toughened glass panel and described optical glass is bonding by optics glue-line 40, and described the first ito thin film layer and described the second ito thin film layer are respectively the ito thin film layer on X, Y-direction.In the present invention, the optics glue-line is the transparent optical glue-line.
Preparation method of the present invention is: in the lower floor of toughened glass panel, first do the light refractive index matching layer and process, on this, do the upper strata ito thin film layer of a directions X; In the lower floor of another sheet optical glass, do the ITO layer plated film of Y-direction, then do the SiOx insulation course; Finally with transparent optical cement, fitted in the upper strata of the lower floor of toughened glass panel and glass sheet.
Owing on glass, while doing ITO layer plated film, only one side being done to single treatment, simplified processing technology; The SiOx insulation course is the whole plane treatment that there is no figure, can not affect the ITO of special graph film plating layer is arranged, so yield rate improves greatly and manufacturing cost is reduced.
Currently mostly take glass in the capacitance plate of medium, the electrode pattern of directions X and Y-direction all, on the same plane layer, has the bridge structure in electrode crossing, to avoid X and Y-signal short circuit, has increased complexity, has affected serviceability.
And in this programme, X and Y-signal, on different layers, do not have the bridge structure, do not have the problem of X and Y-signal short circuit.The thickness of OCA40 and glass 50 is depended in mutual capacitance own, has greatly improved the frequency of measuring-signal, thereby improves the touch-screen serviceability.
This reality has the ITO circuit of the ITO of novel directions X and Y-direction to form the electrode of mutual capacitance. and during to face glass, the electric field of relevant position changes when finger touch, and mutual capacitance diminishes, then carrys out calculated touch location by the change that controller detects mutual capacitance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a projection-type multiple point touching capacitance plate, is characterized in that, comprises a toughened glass panel, the below of the described toughened glass panel light refractive index matching layer that has been sticked, and the below of described light refractive index matching layer is provided with one first ito thin film layer; The below of the one optical glass one second ito thin film layer that has been sticked, the below of described the second ito thin film layer SiOx insulation course that has been sticked, the top of described toughened glass panel and described optical glass is bonding by the optics glue-line, and described the first ito thin film layer and described the second ito thin film layer are respectively the ito thin film layer on X, Y-direction.
2. projection-type multiple point touching capacitance plate according to claim 1, is characterized in that, described optics glue-line is the transparent optical glue-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102225630A CN103412690A (en) | 2013-06-05 | 2013-06-05 | Projection-type multi-point capacitance touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102225630A CN103412690A (en) | 2013-06-05 | 2013-06-05 | Projection-type multi-point capacitance touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103412690A true CN103412690A (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102225630A Pending CN103412690A (en) | 2013-06-05 | 2013-06-05 | Projection-type multi-point capacitance touch screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN103412690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123462A (en) * | 2016-08-22 | 2016-11-16 | 青岛海尔股份有限公司 | Refrigerator door and the production method of this refrigerator door |
-
2013
- 2013-06-05 CN CN2013102225630A patent/CN103412690A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123462A (en) * | 2016-08-22 | 2016-11-16 | 青岛海尔股份有限公司 | Refrigerator door and the production method of this refrigerator door |
| WO2018036058A1 (en) * | 2016-08-22 | 2018-03-01 | 青岛海尔股份有限公司 | Refrigerator door and method of manufacturing same |
| CN106123462B (en) * | 2016-08-22 | 2019-03-12 | 青岛海尔股份有限公司 | The production method of refrigerator door and the refrigerator door |
| US10753670B2 (en) | 2016-08-22 | 2020-08-25 | Qingdao Haier Joint Stock Co., Ltd. | Refrigerator door and method of manufacturing same |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |