CN202976044U - Improved structure for single-layer capacitive touch screen - Google Patents
Improved structure for single-layer capacitive touch screen Download PDFInfo
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- CN202976044U CN202976044U CN 201220610475 CN201220610475U CN202976044U CN 202976044 U CN202976044 U CN 202976044U CN 201220610475 CN201220610475 CN 201220610475 CN 201220610475 U CN201220610475 U CN 201220610475U CN 202976044 U CN202976044 U CN 202976044U
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- touch screen
- compensation
- capacitance touch
- individual layer
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Abstract
The embodiment of the utility model discloses an improved structure for a single-layer capacitive touch screen. The improved structure is structurally characterized in that a compensating layer is arranged in a position below the inner surface of a covering layer of the single-layer capacitive touch screen, the area of the compensating layer at least comprises regions except a light-proof region, and the relative dielectric constant of the compensating layer is matched with the relative dielectric constant of the light-proof region of the single-layer capacitive touch screen. The improved structure for the single-layer capacitive touch screen disclosed by the embodiment of the light-proof region has the advantages that the compensating layer with the relative dielectric constant matched with that of the light-proof region is arranged in a position below the inner surface of the covering layer of the single-layer capacitive touch screen, preferably, the compensating layer with the same relative dielectric constant as that of the light-proof region is arranged, and the coupling capacitance value of the light-proof region and a visible region in the single-layer touch screen during the contact point detection is consistent with the coupling capacitance value variable quantity, so the reporting accuracy of the light-proof region is improved.
Description
Technical field
The utility model relates to capacitance plate manufacturing technology field, more particularly, relates to a kind of structure-improved towards the individual layer capacitance touch screen.
Background technology
Capacitance plate is the mobile terminal screen type that emerged rapidly after both touch screens had been used, and is widely used in mobile terminal.capacitance plate has polytype, wherein the individual layer structure of holding mutually touch-screen is realized by individual layer nano indium tin metal oxide ITO1, shown in Fig. 1 a-Fig. 1 b: man-machine interaction is realized for the user in viewing area 2, 2 edge is provided with light tight regional 3 in the viewing area, be used for blocking the components and parts that drive viewing area 2, referring to Fig. 1 b, described individual layer holds mutually and also is provided with overlayer 4 on touch-screen, this kind structure is used mutually, and appearance touch-screen principle realizes touching the location, namely at the coupling capacitance variable quantity that passes through on described touch-screen to calculate between drive electrode and all receiving electrodes, determine the touch point coordinate.
Hold mutually touch-screen as example take existing individual layer, described light tight regional 3 relative dielectric constant is different from the relative dielectric constant of described overlayer 4, thereby described viewing area 2 from described light tight regional 3 the coupling capacitance variable quantity when the detected touch point with different, thereby the touch point detected light tight regional 3, the inaccurate technical matters of newspaper point data will appear in same newspaper point condition.
Thereby, how to improve the newspaper point accuracy in described light tight zone, be the technical matters that those skilled in the art need solution badly.
The utility model content
In view of this, the utility model provides a kind of structure-improved towards the individual layer capacitance touch screen, to realize improving the technical purpose of the newspaper point accuracy in light tight zone in the individual layer capacitance plate.
A kind of structure-improved towards the individual layer capacitance touch screen comprises:
The overlayer inside surface of described individual layer capacitance touch screen is to be arranged with layer of compensation, the area of described layer of compensation comprises the zone except light tight zone at least, the relative dielectric constant coupling in the light tight zone of the relative dielectric constant of described layer of compensation and described individual layer capacitance touch screen.
Alternatively, form described layer of compensation by vacuum splashing and plating or coating below the overlayer inside surface of individual layer capacitance touch screen;
The relative dielectric constant of described layer of compensation is consistent with the relative dielectric constant in the light tight zone of described individual layer capacitance touch screen.
Alternatively, described layer of compensation is arranged between the nano indium tin metal oxide ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the part in described layer of compensation corresponding described light tight zone is tiled on described light tight zone.
Alternatively, described layer of compensation is arranged between the nano indium tin metal oxide ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the part in described layer of compensation corresponding described light tight zone is between described light tight zone and described ITO layer.
Alternatively, described layer of compensation covers described ITO layer inside surface.
Alternatively, described layer of compensation is arranged between the ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the edge of described layer of compensation and described light tight regional edge are along joining.
Alternatively, described layer of compensation is arranged at the ITO layer inside surface of individual layer capacitance touch screen, and the edge of described layer of compensation and described light tight regional edge are along on same vertical curve.
Can find out from above-mentioned technical scheme, the structure-improved towards the individual layer capacitance touch screen of the utility model embodiment, by the layer of compensation of setting below the overlayer inside surface of individual layer capacitance touch screen with the relative dielectric constant coupling in light tight zone, be preferably the layer of compensation identical with the relative dielectric constant in light tight zone is set, make viewing area and described light tight zone coupling capacitance and the coupling capacitance variable quantity when detected touch point in single-layer touch screen consistent, thereby improve the newspaper point accuracy in described light tight zone.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 a is the disclosed existing structural representation of facing towards the individual layer capacitance touch screen of the utility model;
Fig. 1 b is the disclosed existing vertical section structure schematic diagram towards the individual layer capacitance touch screen of the utility model;
Fig. 2 is the disclosed vertical section structure schematic diagram towards the individual layer capacitance touch screen of the utility model embodiment;
Fig. 3 is the disclosed a kind of structure-improved schematic diagram towards the individual layer capacitance touch screen of the another embodiment of the utility model;
Fig. 4 is the disclosed a kind of structure-improved schematic diagram towards the individual layer capacitance touch screen of the another embodiment of the utility model;
Fig. 5 is the disclosed a kind of structure-improved schematic diagram towards the individual layer capacitance touch screen of the another embodiment of the utility model
Fig. 6 is the disclosed a kind of structure-improved schematic diagram towards the individual layer capacitance touch screen of the another embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Existing individual layer holds in touch-screen mutually, as Fig. 1 a-Fig. 1 b, under same newspaper point condition, individual layer holds touch-screen mutually at described light tight regional 3(Black matrix) in newspaper name a person for a particular job and inaccurate situation occurs, reason is, described light tight regional 3 relative dielectric constant is different from the relative dielectric constant of described overlayer 4, thereby cause described light tight regional 3 the inconsistent situation of newspaper point condition to occur with viewing area (View area) 2, namely described light tight regional 3 newspaper points are inaccurate under same newspaper point condition.
The modes that the above-mentioned light tight regional 3 inaccurate problems of newspaper point of existing solution are taked are to revise by software algorithm, and because the material of overlayer 4 and the relative dielectric constant of described light tight regional 3 material change often, thereby software algorithm not only complexity is high and revise accuracy and can not be guaranteed.
The utility model embodiment discloses a kind of structure-improved towards the individual layer capacitance touch screen, to realize improving the technical purpose of the newspaper point accuracy in light tight zone in the individual layer capacitance plate.
Fig. 2 shows a kind of structure-improved towards the individual layer capacitance touch screen, comprising:
Layer of compensation 21, described layer of compensation is arranged at below overlayer 22 inside surfaces of described individual layer capacitance touch screen, the area of described layer of compensation comprises the zone except light tight zone at least, light tight regional 23 the relative dielectric constant coupling of the relative dielectric constant of described layer of compensation and described individual layer capacitance touch screen.
In an embodiment, described layer of compensation 21 is arranged at overlayer 22 inside surfaces, in figure ITO layer 24 be arranged at described light tight regional 23 with described layer of compensation 21 inside surfaces.
As preferably, the relative dielectric constant of described layer of compensation is consistent with the relative dielectric constant in the light tight zone of described individual layer capacitance touch screen.
And described layer of compensation can arrange formation by vacuum splashing and plating or coating.
After having possessed this layer of compensation in described individual layer capacitance touch screen, the coupling capacitance variable quantity between described drive electrode and reception motor can be expressed as Δ C
mBM:
Δ C
mBM=C
M1BM-C
M0BM=f (
ε CL, ε
BM, C
f)-f (ε
CL, ε
BM), wherein:
C
M0BM=f (ε
CL, ε
BM) be when the touch point not detected in light tight zone, drive electrode and receiving electrode coupling electric capacity, C
M1BM=f (ε
CL, ε
BM, C
f) be light tight zone when the touch point being detected, drive electrode and receiving electrode coupling electric capacity, described ε
CLBe tectal relative dielectric constant, described ε
BMBe the relative dielectric constant of light tight region material, C
fCoupling capacitance between human body and drive electrode.
Preferably, when the relative dielectric constant of described layer of compensation was consistent with the relative dielectric constant in the light tight zone of described individual layer capacitance touch screen, described coupling capacitance variable quantity can be expressed as:
ΔC
mBM=ΔC
mVA=C
m1VA-C
m0VA=f(ε
CL,C
f)-f(ε
CL)。
Above-described embodiment holds the principle of work angle checking of touch-screen mutually from individual layer, adopt the improved process in the utility model, have coupling capacitance and the coupling capacitance variable quantity inconsistent situation of viewing area 2 and described light tight regional 3 when detected touch point in single-layer touch screen with taking on a new look now.
Need to prove:
Described layer of compensation can adopt the transparent resin class as the compensative material of relative dielectric constant, and described transparent resin class has good chemical resistance, heat resistance, can select that acrylic resin, epoxy resin are good, polyimide resin, silicones etc., does not limit to.
The relative dielectric constant in the light tight zone of the relative dielectric constant of layer of compensation described in above-described embodiment and described individual layer capacitance touch screen mates but in inconsistent situation, can realize that light tight regional 3 report the technical purposes of some accuracys raising by software algorithm is auxiliary.
The thickness of described layer of compensation can be by practical application and the arranging difference of relative dielectric constant and adjusts, and does not do too much limitation herein.Described overlayer is generally glass substrate, and usually, its thickness is about 0.7mm in the embodiment of this instructions, and sputter or coating are all carried out in layer of compensation, ITO layer and light tight zone take this glass substrate as the basis.
Fig. 3 shows another towards the structure-improved of individual layer capacitance touch screen, comprising:
In the present embodiment, layer of compensation 31 is arranged between described overlayer 32 inside surfaces and described ITO layer 34, the part in described layer of compensation 31 corresponding described light tight zones between described light tight regional 33 with described ITO layer 34 between, layer of compensation described in figure 31 and described light tight regional 33 plane are at described overlayer 32 inside surfaces.
Fig. 4 shows another towards the structure-improved of individual layer capacitance touch screen, comprising:
In the present embodiment, layer of compensation 41 covers described ITO layer 44 inside surface, and the edge of described ITO layer 44 arranges light tight regional 43, and overlayer 42 is tiled in described ITO layer 44 and described light tight regional 43 surfaces.
Fig. 5 shows another towards the structure-improved of individual layer capacitance touch screen, comprising:
In the present embodiment, layer of compensation 51 is arranged between the ITO layer 54 of described overlayer 52 inside surfaces and described individual layer capacitance touch screen, and layer of compensation described in figure 51 and described light tight regional 53 plane are at described overlayer 52 inside surfaces.
Fig. 6 shows another towards the structure-improved of individual layer capacitance touch screen, comprising:
In the present embodiment, described layer of compensation 61 is arranged at described ITO layer 64 inside surface, and the edge of described layer of compensation 61 and described light tight regional 63 edges are on same vertical curve, described ITO layer 64 and the inside surface of described light tight regional 63 surfaces at overlayer 62.
Structure-improved in above-described embodiment, improved existing individual layer capacitance touch screen stepped construction from hardware, make viewing area and described light tight zone coupling capacitance and the coupling capacitance variable quantity coupling when detected touch point in single-layer touch screen, thereby improve the newspaper point accuracy in described light tight zone.
In sum:
The structure-improved towards the individual layer capacitance touch screen in the utility model embodiment, by the layer of compensation of setting below the overlayer inside surface of individual layer capacitance touch screen with the relative dielectric constant coupling in light tight zone, be preferably the layer of compensation identical with the relative dielectric constant in light tight zone is set, make viewing area and described light tight zone coupling capacitance and the coupling capacitance variable quantity when detected touch point in single-layer touch screen consistent, thereby improve the newspaper point accuracy in described light tight zone.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the utility model embodiment, realization in other embodiments.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the structure-improved towards the individual layer capacitance touch screen, is characterized in that, comprising:
The overlayer inside surface of described individual layer capacitance touch screen is to be arranged with layer of compensation;
The area of described layer of compensation comprises the zone except light tight zone at least;
The relative dielectric constant coupling in the light tight zone of the relative dielectric constant of described layer of compensation and described individual layer capacitance touch screen.
2. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1, is characterized in that,
Form described layer of compensation by vacuum splashing and plating or coating below the overlayer inside surface of individual layer capacitance touch screen;
The relative dielectric constant of described layer of compensation is consistent with the relative dielectric constant in the light tight zone of described individual layer capacitance touch screen.
3. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1 or 2, is characterized in that, the overlayer inside surface of described individual layer capacitance touch screen comprises to be arranged with layer of compensation:
Described layer of compensation is arranged between the nano indium tin metal oxide ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the part in described layer of compensation corresponding described light tight zone is tiled on described light tight zone.
4. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1 or 2, is characterized in that, the overlayer inside surface of described individual layer capacitance touch screen comprises to be arranged with layer of compensation:
Described layer of compensation is arranged between the nano indium tin metal oxide ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the part in described layer of compensation corresponding described light tight zone is between described light tight zone and described ITO layer.
5. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1 or 2, is characterized in that, the overlayer inside surface of described individual layer capacitance touch screen comprises to be arranged with layer of compensation:
Described layer of compensation covers described ITO layer inside surface.
6. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1 or 2, is characterized in that, the overlayer inside surface of described individual layer capacitance touch screen comprises to be arranged with layer of compensation:
Described layer of compensation is arranged between the ITO layer of the overlayer inside surface of described individual layer capacitance touch screen and described individual layer capacitance touch screen, and the edge of described layer of compensation and described light tight regional edge are along joining.
7. the structure-improved towards the individual layer capacitance touch screen as claimed in claim 1 or 2, is characterized in that, the overlayer inside surface of described individual layer capacitance touch screen comprises to be arranged with layer of compensation:
Described layer of compensation is arranged at the ITO layer inside surface of individual layer capacitance touch screen, and the edge of described layer of compensation and described light tight regional edge are along on same vertical curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610475 CN202976044U (en) | 2012-11-16 | 2012-11-16 | Improved structure for single-layer capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610475 CN202976044U (en) | 2012-11-16 | 2012-11-16 | Improved structure for single-layer capacitive touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN202976044U true CN202976044U (en) | 2013-06-05 |
Family
ID=48517091
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610475 Expired - Lifetime CN202976044U (en) | 2012-11-16 | 2012-11-16 | Improved structure for single-layer capacitive touch screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929468A (en) * | 2012-11-16 | 2013-02-13 | 敦泰科技有限公司 | Improvement technique and structure for single layer capacitive touch screen |
-
2012
- 2012-11-16 CN CN 201220610475 patent/CN202976044U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929468A (en) * | 2012-11-16 | 2013-02-13 | 敦泰科技有限公司 | Improvement technique and structure for single layer capacitive touch screen |
| CN102929468B (en) * | 2012-11-16 | 2016-08-31 | 敦泰科技有限公司 | A kind of modification method towards monolayer capacitance touch screen and structure |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
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| CX01 | Expiry of patent term |