CN202838281U - Thin-film sensor, capacitive touch screen containing the same and terminal product thereof - Google Patents
Thin-film sensor, capacitive touch screen containing the same and terminal product thereof Download PDFInfo
- Publication number
- CN202838281U CN202838281U CN 201220425128 CN201220425128U CN202838281U CN 202838281 U CN202838281 U CN 202838281U CN 201220425128 CN201220425128 CN 201220425128 CN 201220425128 U CN201220425128 U CN 201220425128U CN 202838281 U CN202838281 U CN 202838281U
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- electrode layer
- touch screen
- film
- base material
- thin
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Abstract
The utility model relates to a thin-film sensor, a capacitive touch screen containing the same and a terminal product thereof. The thin-film sensor is only provided with one optically conductive substrate, and specifically is only provided with one optically transparent substrate. The upper surface and the lower surface of the substrate are respectively provided with a sensing electrode layer and a driving electrode layer in a plating mode. On one hand, reducing of the thickness of the thin-film sensor is facilitated, and thereby developing toward a light and thin direction for touch screens and touch electronic products is facilitated; and on the other hand, material selecting and manufacturing processes are simple, and selecting two substrates and manufacturing two optically conductive thin films are of no need.
Description
Technical field
The utility model relates to the film inductor, comprises capacitance touch screen and the end product thereof of this inductor.
Background technology
At present, the fashionable market of hand touch smart electronics product, the good human-computer interaction performance of capacitive touch screen has obtained extensive approval, and the rapid expansion in capacitance plate market has also promoted the development of this art.
Capacitive touch screen roughly can be divided into the glass capacitive screen and thin-film capacitor shields by the material of inductor.The thin film capacitor type touch-screen is light because of the inductor of its inductor weight ratio glass capacitive screen, and membraneous material can adopt the mode of production of volume to volume (Roll to Roll), be conducive to large-scale production, reduce production costs, so the thin film capacitor type touch-screen is widely used in mobile phone, on panel computer and the super notebook computer, its market scale is suitable with glass capacitive formula touch-screen.
Traditional thin film capacitor type touch-screen, its inductor is to be bonded by optical cement by two-layer transparent conductive film, specifically, at first make conductive film, namely make electrode layer at the upper surface of two transparent film substrates respectively, and then by optical cement two-layer conductive film is fitted up and down, (upper strata is the induction electrode layer to two-layer electrode layer up and down, lower floor is drive electrode layer) between spacing be the thickness that the thin film base material adds one deck optical cement, and the below of drive electrode layer also has the thickness of thin film base material.
The thickness of traditional film inductor is thicker, can increase the thickness of touch-screen, is unfavorable for that touch-screen and hand get an electric shock sub-product to lightening future development; And consumptive material is many, and cost is high, and production process comparatively bothers.
The utility model content
Based on this, be badly in need of a kind of thinner film inductor and thinner thin film capacitor type touch-screen.
The utility model provides a kind of film inductor for capacitance touch screen on the one hand, described film inductor comprises induction electrode layer and drive electrode layer, described film inductor also comprises an optically transparent base material, described base material has two surfaces, and described two surfaces are plated respectively and are provided with described induction electrode layer and described drive electrode layer; Described base material is single thin film.
Adopt the film inductor that is used for capacitance touch screen of technique scheme, it only has a photoconductive base material, specifically, only adopt an optically transparent base material, plate respectively on up and down two surfaces of this base material and to establish induction electrode layer and drive electrode layer, on the one hand be conducive to reduce the thickness of film inductor, thereby be conducive to touch-screen and hand gets an electric shock sub-product to lightening future development; Selection and production process are comparatively simple on the other hand, need not to select two base materials, make two photoconductive films.
Among embodiment, described base material is the film of the PET material of individual layer therein.
Among embodiment, the thickness of described base material is 0.05 ~ 0.2mm therein.
Among embodiment, described induction electrode layer and described drive electrode layer all adopt optically transparent conductive material ITO therein.The making of described induction electrode layer and drive electrode layer all is to establish one deck ITO conducting film in the substrate surface plating, and forms separately corresponding needed ITO pattern by etching.
Among embodiment, the side surface away from described base material of described induction electrode layer and described drive electrode layer all is provided with the metal electrode lead-in wire therein.Specifically, the plating of induction electrode layer and drive electrode layer is established on the base material, and establishes metal film in the side surface plating of separately the base material of not fitting, and etching forms separately corresponding metal electrode lead-in wire.Described metal film can be the known metal film that can be used for capacitance touch screen inductor electrode layer of copper film, aluminium film, silverskin or other those skilled in the art, and is same, and described metal electrode lead-in wire can be copper lead-in wire, aluminum lead, silver wire etc.
Among embodiment, described induction electrode layer is electrically connected by flexible printed circuit board mutually with described drive electrode layer therein.Therein in preferred embodiment, the induction electrode layer is the X axis turning circuit, drive electrode layer is the Y-direction turning circuit, flexible printed circuit board comprises the first and the second portion that is connected the Y-axis turning circuit that connects the X axis turning circuit, wherein first is electrically connected with the induction electrode layer by anisotropic conductive, and second portion is electrically connected with drive electrode layer by anisotropic conductive.
The utility model provides a kind of capacitance touch screen on the other hand, and it comprises cover plate and above-mentioned film inductor, and described induction electrode layer is compared with drive electrode layer, and the described cover plate of described induction electrode leafing is relatively near.
Among embodiment, the induction electrode layer of described film inductor and described cover plate are bonding by optical cement therein.
Among embodiment, described optical cement is the OCA optical cement therein, and thickness is 50 microns-100 microns.In preferred embodiment, the transmittance of optical cement reaches more than 95% therein.Thereby guarantee bonding permanance and guarantee color and sufficient display brightness.
Among embodiment, described cover plate is special-shaped tempering glass material therein.Also can adopt other glass material cover plates that can be used for touch-screen known in the art.
Among embodiment, a side surface of described cover plate is provided with the form housing therein, and this side surface and described induction electrode layer that is provided with the form housing is bonding by optical cement.
The utility model provides a kind of touch screen terminal product more on the one hand, and it has comprised above-mentioned capacitance touch screen.
Description of drawings
Fig. 1 is the cross-sectional schematic of the capacitance touch screen of the utility model embodiment 1.
Embodiment
As shown in Figure 1, the cross-sectional schematic of the capacitance touch screen of the utility model embodiment 1, it comprises cover plate 10 and film inductor 20.
Described cover plate 10 is special-shaped tempering glass material cover plate.
Cover plate 10 lower surfaces (i.e. a side bonding with the film inductor) are provided with form housing 11, and in general, form housing 11 is to utilize printing ink to manufacture on cover plate 10 by silk-screen printing technique.
Film inductor 20 comprises induction electrode layer 21, drive electrode layer 22, base material 23.
Base material 23 is the single-layer PET film, whole optical clear.
Base material 23 has up and down two surfaces, and two surfaces are plated respectively and are provided with induction electrode layer 21 and drive electrode layer 22 up and down; Induction electrode layer 21 is compared with drive electrode layer 22, induction electrode layer 21 from cover plate 10 relatively close to.
Induction electrode layer 21 and drive electrode layer 22 all adopt optically transparent conductive material ITO.The making of induction electrode layer 21 and drive electrode layer 22 all is to establish one deck ITO conducting film at base material 23 plated surfaces, and forms separately corresponding needed ITO pattern by etching.
Side surface away from base material 23 of induction electrode layer 21 all is provided with metal electrode lead-in wire 24.Side surface away from base material 23 of drive electrode layer 22 all is provided with metal electrode lead-in wire 25.Specifically, establish metal film in the side surface plating of electrode layer, and etching forms separately corresponding metal electrode lead-in wire.Described metal film can be the known metal film that can be used for capacitance touch screen inductor electrode layer of copper film, aluminium film, silverskin or other those skilled in the art, and is same, and described metal electrode lead-in wire can be copper lead-in wire, aluminum lead, silver wire etc.
Cover plate 10 is provided with a side surface of form housing 11 by OCA optical cement 30 and film inductor 20(induction electrode layer 21 1 side) bonding.
Flexible printed circuit board is pressed together on film inductor 20 1 ends.The metal electrode of induction electrode layer 21 lead-in wire 24 and the metal electrode of drive electrode layer 22 go between and 25 mutually are electrically connected by flexible printed circuit board 40.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. film inductor that is used for capacitance touch screen, described film inductor comprises induction electrode layer and drive electrode layer, it is characterized in that: described film inductor also comprises an optically transparent base material, described base material has two surfaces, and described two surfaces are plated respectively and are provided with described induction electrode layer and described drive electrode layer;
Described base material is single thin film.
2. film inductor as claimed in claim 1, it is characterized in that: described base material is the film of the PET material of individual layer.
3. film inductor as claimed in claim 1, it is characterized in that: the thickness of described base material is 0.05 ~ 0.2mm.
4. film inductor as claimed in claim 1 is characterized in that: the side surface away from described base material of described induction electrode layer and described drive electrode layer all is provided with the metal electrode lead-in wire.
5. capacitance touch screen, it comprises cover plate and such as the described film inductor of any one among the claim 1-4, described induction electrode layer is compared with drive electrode layer, and the described cover plate of described induction electrode leafing is relatively near.
6. capacitance touch screen as claimed in claim 5 is characterized in that, a side surface of described cover plate is provided with the form housing, and this side surface and described induction electrode layer that is provided with the form housing is bonding by optical cement.
7. touch screen terminal product, it comprises capacitance touch screen as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425128 CN202838281U (en) | 2012-08-24 | 2012-08-24 | Thin-film sensor, capacitive touch screen containing the same and terminal product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220425128 CN202838281U (en) | 2012-08-24 | 2012-08-24 | Thin-film sensor, capacitive touch screen containing the same and terminal product thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202838281U true CN202838281U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220425128 Expired - Fee Related CN202838281U (en) | 2012-08-24 | 2012-08-24 | Thin-film sensor, capacitive touch screen containing the same and terminal product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202838281U (en) |
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2012
- 2012-08-24 CN CN 201220425128 patent/CN202838281U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20180824 |