CN203311368U - Touch panel - Google Patents
Touch panel Download PDFInfo
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- CN203311368U CN203311368U CN2013202039030U CN201320203903U CN203311368U CN 203311368 U CN203311368 U CN 203311368U CN 2013202039030 U CN2013202039030 U CN 2013202039030U CN 201320203903 U CN201320203903 U CN 201320203903U CN 203311368 U CN203311368 U CN 203311368U
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- layer
- contact panel
- sensing electrode
- electrode layer
- optical compensating
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Abstract
The utility model provides a touch panel. The touch panel comprises a cover plate, an optical compensation layer and a sensing electrode layer, wherein the sensing electrode layer is arranged between the cover plate and the optical compensation layer. An etching area and a non-etching area are formed on the sensing electrode layer. The optical compensation layer is used for forming optical matching with the sensing electrode layer, and receives incident light penetrating the cover plate and the sensing electrode layer for toning of the reflected light hue formed by corresponding of the etching area and the non-etching area. Thus, according to the touch panel, the chromatic aberration optical problem of the touch panel can be solved effectively.
Description
Technical field
The utility model relates to touch technology, and particularly relevant for a kind of contact panel.
Background technology
Contact panel has been widely used in the electronic products such as household supplies, communication device and electronic information aid, replaces gradually the inputting interface that physical keyboard, mouse etc. are used as each electronic product, and efficient operation interface is provided.
Current contact panel has developed directly sensing electrode has been made to the monolithic board structure that is formed at cover sheet.If sensing electrode one etched pattern though the contact panel of this kind monolithic board structure is frivolous, between etching area and non-etching area, can cause because of the reaction to light is different from contact panel outer watch can the generation aberration optical problem.
Summary of the invention
The embodiment of the utility model further designs optical compensating layer and mates the sensing electrode layer, can effectively improve the aberration optical problem of contact panel.
The utility model provides a kind of contact panel, comprise: a cover plate, an optical compensating layer and a sensing electrode layer, wherein the sensing electrode layer is between cover plate and optical compensating layer, on the sensing electrode layer, define an etching area and a non-etching area, optical compensating layer is and the sensing electrode layer forms optical match, this optical compensating layer can receive an incident light that penetrates this cover plate and this sensing electrode layer be in harmonious proportion the non-etching area of this etching area and this reflected light tone of corresponding formation.
The accompanying drawing explanation
Figure 1A shows the diagrammatic cross-section according to contact panel in the utility model one embodiment;
Figure 1B shows according in the utility model one embodiment, looking schematic diagram on contact panel;
Fig. 2 shows the diagrammatic cross-section according to contact panel in another embodiment of the utility model;
Fig. 3 shows the diagrammatic cross-section according to contact panel in the another embodiment of the utility model;
Fig. 4 shows according to the utility model diagrammatic cross-section of contact panel in an embodiment again;
Fig. 5～Fig. 8 shows respectively the process flow diagram of manufacture method of the contact panel of Figure 1A～Fig. 4.
Embodiment
Next will provide many different embodiment to implement the utility model.These embodiment are not intended to limit the utility model.In addition, one first assembly be formed at one second assembly " top ", " on ", " below " or " under " this first assembly that can comprise in embodiment directly contacts with the second assembly, or also can comprise between this first assembly and the second assembly more have other additional assemblies make this first assembly with the second assembly without directly contacting.In addition, alleged orientation in this instructions " on " and D score, be only to mean relative position relationship, for this instructions graphic, the top of contact panel is near the beholder, and below is away from the beholder.Moreover clear succinct for making to illustrate, various assemblies may show with any different proportion.
Please first merge referring to figs. 1A to Fig. 4, show various touch control (200, 300, 400, 500) structure, generally, contact panel (200, 300, 400, 500) all comprise a cover plate (202, 302, 402, 502), one optical compensating layer (208, 308, 408, 508) and a sensing electrode layer (206, 306, 406, 506), wherein, the sensing electrode layer is between cover plate and optical compensating layer, on the sensing electrode layer, define an etching area (referring to the zone formed by sensing component) and a non-etching area (referring to be clipped in the non-touch area between sensing component), wherein optical compensating layer is and the sensing electrode layer forms optical match, optical compensating layer can receive an incident light that penetrates cover plate and sensing electrode layer be in harmonious proportion etching area and non-etching area the reflected light tone of corresponding formation.
Below will describe for each figure the structure of each contact panel in detail.
Figure 1A and Figure 1B show respectively in the utility model embodiment, the diagrammatic cross-section of contact panel and on look schematic diagram.As shown in Figure 1A, the contact panel 200 of the present embodiment comprises a cover plate 202, a sensing electrode layer 206 and an optical compensating layer 208.Wherein, cover plate 202 can be a strengthening cover plate, except being used for carrying sensing electrode layer 206, more can provide hard protective effect.In one embodiment, the strengthening cover plate can be used chemical ion exchange or similar processing procedure to form.In one embodiment, cover plate 202 is formed by clear sheet, for example, and the plastic material of glass or macromolecular material.In further embodiments, cover plate 202 more can be formed by the thermoplastic material as acryl.In addition, cover plate 202 thickness are about 0.2～2.0mm.
The processing procedure of sensing electrode layer 206 can for example comprise via coating, spatter cross or similar processing procedure by transparent conductive material (as tin indium oxide (Indium tin oxide, ITO)) deposition, then come pattern to dissolve required sensing electrode layer 206 through micro-photographing process, etch process or similar processing procedure.In addition, sensing electrode layer 206 also can directly carry out patterned print as the screen painting processing procedure and forms.The zone that aforesaid etching area namely is comprised of the first electrode 220X, the second electrode 220Y and insulation course 222, but not etching area is in the non-touch area be clipped between the first electrode 220X, the second electrode 220Y and insulation course 222.But sensing electrode layer of the present utility model is not limited to the patterning shown in Figure 1B.
It is worth mentioning that, in one embodiment, the composite bed that optical compensating layer 208 can be an individual layer or is comprised of a plurality of layers, optical compensating layer 208 can be by comprising glass, Nb
2O
5, SiO
2, ITO, TiO
2, or the above-mentioned materials such as combination form.In some embodiment, the composite bed that optical compensating layer 208 forms for a plurality of layers, wherein above-mentioned compound series of strata are replaced storehouse and are formed by a plurality of low-index layers, high refractive index layer.In other embodiment, optical compensating layer 208 is that wherein the first layer of compensation is SiO by the two-layer compound layer of the first layer of compensation and the second layer of compensation institute storehouse
2The layer and the second layer of compensation is Nb
2O
5Layer, the thickness of the first layer of compensation is that 5～60nm and refractive index are 1.20～1.70, and the thickness of the second layer of compensation be 1～15nm and refractive index is 1.6～2.5.In addition, optical compensating layer 208 can coordinate the optical characteristics (as refractive index) of sensing electrode layer 206 and required reflected light tone and set its process parameter on actual design, and the formation method of optical compensating layer 208 can comprise radio frequency sputter, evaporation, spraying coating, rotary coating or brush.
In the present embodiment, contact panel 200 more can further comprise a shield assemblies 203, the formation zone of shield assemblies 203 is used for defining the non-visible area NV of contact panel 200, allow the corresponding nontransparent assembly (not shown) such as peripheral conducting wire that are arranged in non-visible area NV in contact panel 200 be subject to covering of shield assemblies 203, all the other zones of contact panel 200 are a visible area V.In the framework of contact panel 200, non-visible area NV normally designs at least one outer peripheral areas that is positioned at visible area V.In the present embodiment, shield assemblies 203 is between can sensing electrode layer 206 and optical compensating layer 208 in non-visible area NV, special system can be formed under the sensing electrode layer 206 in non-visible area NV on surface, thus, the concrete formation position of the optical compensating layer 208 of the present embodiment is the lower surface that is formed at sensing electrode layer 206 at visible area V, is the lower surface that is formed at shield assemblies 203 at non-visible area NV.
Above-mentioned shield assemblies 203 can be not more than 7 light screening material by optical density value and form, and the material of shield assemblies 203 can be dielectric ink, carbon slurry, graphite flake or combinations thereof, and can print or the mode such as coating forms.Sight demand outside the visual contact panel 200 of shield assemblies 203 and select the dielectric ink of black, brown or any color, make the non-visible area NV seen outside contact panel 200 present black, brown or other colors.
The contact panel 200 of the present embodiment also comprises a protective seam (Passivation Layer) 210; it is upper that it is formed under optical compensating layer 208 surface, is used for further protecting sensing electrode layer 206 to avoid being subject to outside chemical reaction or physical change and affects the effect of touch-control sensing.Protective seam 210 can be comprised of transparent plastic material, for example, and polyethylene terephthalate (Polyethylene terephthalate, PET).In the utility model embodiment, the formation method of protective seam 210 comprises radio frequency sputter, evaporation, spraying coating, rotary coating or brushes.
By this, according to above-mentioned explanation, the contact panel of the present embodiment sees through the design of optical compensating layer 208, can effectively improve the aberration optical problem of contact panel 200, and then after the problems referred to above are improved and can improve the penetrance of the visible area V of contact panel 200.
Please refer to Fig. 2, it shows the diagrammatic cross-section of contact panel in another embodiment of the utility model.The contact panel 300 of the present embodiment is roughly identical with the framework of the embodiment of Figure 1A, discrepancy is, the shield assemblies 303 of the present embodiment can cover plate 302 and sensing electrode layer 306 in non-visible area NV between, particularly can be formed under the cover plate 302 in non-visible area NV on surface.
Please refer to Fig. 3, it shows the diagrammatic cross-section of contact panel in the another embodiment of the utility model.The present embodiment is roughly identical with the embodiment of Figure 1A at the laminated framework that sensing electrode layer 406, shield assemblies 403, optical compensating layer 408 and protective seam 410 form; discrepancy is; the contact panel 400 of the present embodiment further comprises an index-matched (Index Matching) layer 404; each layer of itself and above-mentioned laminated framework is positioned at the same side of cover plate 402; index-matched layer 404 is the both sides that are symmetrically located at respectively sensing electrode layer 406 with optical compensating layer 408 on framework, particularly index-matched layer 404 is between cover plate 302 and sensing electrode layer 306.On the formation order, before sensing electrode layer 406 formed, index-matched layer 404 first was formed under cover plate 402 surperficial upper, and in other words, the sensing electrode layer 406 of the present embodiment is formed on the lower surface of index-matched layer 404.The optical compensating layer 408 of the present embodiment can further carry out optical match according to the optical characteristics of index-matched layer 404 and sensing electrode layer 406 in design.
Supplementary notes be, the thickness of sensing electrode layer 406 tends to decide according to the actual design demand, for example, on large touch panel, the thickness of sensing electrode layer 406 relatively just needs design thicker in to meet the demand of low line resistance.Thus, this etching line that will make patterning sensing electrode layer 406 cause is more obviously visual, therefore the present embodiment, before sensing electrode layer 406 and follow-up laminated framework formation thereof, sees through increase index-matched layer 404 and further makes etching line difficult visible.Wherein, index-matched layer 404 is to belong to anti-reflecting layer, be used for avoiding the etching line of sensing electrode layer 406 obviously visual, not be used to provide the effect of the reflected light color that adjustment contact panel 400 that optical compensating layer 408 provides reflects in the face of external light source 100.In addition, index-matched layer 404 can be by Nb
2O
5, SiO
2Form, and the formation method of index-matched layer 404 can comprise radio frequency sputter, evaporation, spraying coating, rotary coating or brush.
Please refer to Fig. 4, it shows the utility model diagrammatic cross-section of contact panel in an embodiment again.The contact panel 500 of the present embodiment is roughly identical with the embodiment of Fig. 3, to allow index-matched layer 504 and optical compensating layer 508 be symmetrically located at respectively the both sides of sensing electrode layer 506 equally, and discrepancy is, shield assemblies 503 can cover plate 502 and index-matched layer 504 in non-visible area NV between, and index-matched layer 504 can be between shield assemblies 503 and sensing electrode layer 506 in non-visible area NV, can be between cover plate 502 and sensing electrode layer 506 in visible area V.That is the shield assemblies 503 of the present embodiment can be before index-matched layer 504 forms, first be formed under cover plate 500 on surface, in other words, the index-matched layer 504 of the present embodiment is to be formed under cover plate 502 on surface at visible area V, is to be formed under shield assemblies 503 on surface at non-visible area NV.
Refer to Fig. 5; show the process flow diagram of manufacture method of the contact panel of Figure 1A; a side at cover plate 202 sequentially forms sensing electrode layer 206 (step 510), shield assemblies 203 (step 520) and optical compensating layer 208 (step 530), further can form protective seam 210 in step 540.Its whole structural relation can be joined the contact panel of 1A figure, is namely no longer repeated at this.
Refer to Fig. 6; show the process flow diagram of manufacture method of the contact panel of Fig. 2; a side at cover plate 302 sequentially forms shield assemblies 303 (step 610), sensing electrode layer 306 (step 620) and optical compensating layer 308 (step 630), further can form protective seam 310 in step 640.Be that the present embodiment is first to form shield assemblies 303 on the lower surface of cover plate 302, form again afterwards sensing electrode layer 306 on the lower surface of cover plate 302 and shield assemblies 303.After forming sensing electrode layer 306, then form optical compensating layer 308 surface under sensing electrode layer 306.Its whole structural relation can be joined the contact panel of the 2nd figure, is namely no longer repeated at this.
Refer to Fig. 7; show the process flow diagram of manufacture method of the contact panel of Fig. 3; a side at cover plate 402 sequentially forms index-matched layer 404 (step 710), sensing electrode layer 406 (step 720), shield assemblies 403 (step 730) and optical compensating layer 408 (step 740), further can form protective seam 410 in step 750.Its whole structural relation can be joined the contact panel of the 3rd figure, is namely no longer repeated at this.
Refer to Fig. 8; show the process flow diagram of manufacture method of the contact panel of Fig. 4; a side at cover plate 502 sequentially forms shield assemblies 503 (step 810), index-matched layer 504 (step 820), sensing electrode layer 506 (step 830) and optical compensating layer 508 (step 840), further can form protective seam 510 in step 850.Its whole structural relation can be joined the contact panel of the 4th figure, is namely no longer repeated at this.
The manufacture method of comprehensive above-mentioned each contact panel, the side that its step roughly is included in a cover plate forms respectively a sensing electrode layer and an optical compensating layer, wherein the sensing electrode layer is between cover plate and optical compensating layer, on the sensing electrode layer, define an etching area and a non-etching area, and optical compensating layer is and the sensing electrode layer forms optical match, optical compensating layer can receive an incident light that penetrates cover plate and sensing electrode layer be in harmonious proportion etching area and non-etching area the reflected light tone of corresponding formation.
In the various embodiments described above, disclosed contact panel can further see through an optics adhesion layer (not illustrating) with a display apparatus module (not illustrating), to fit, and is widely used in every electronic product to form the touch-control display module.In addition, disclosed each assembly in the above-described embodiments, its characteristic, material and manufacture are all roughly similar, namely at each embodiment, do not describe individually again.
In sum, the design and application of the index-matched layer of the utility model, can avoid etching line visual, while making contact panel for display apparatus module, on touch control display, do not have obvious lines.In addition, the optical compensation series of strata coordinate the optical characteristics of sensing electrode layer and design and produce, can make incident light from the contact panel external light source after penetrating sensing electrode layer and optical compensating layer, reflect the reflected light near the natural light tone, and then make the beholder when watching contact panel, not have the problem of the color exception such as partially blue or partially yellow.Moreover because etching line is visual and the problem of reflected light color achieves a solution, and then the utility model can reach the effect of the penetrance of the visible area that improves contact panel.
Although the utility model discloses as above with several preferred embodiments; so it is not in order to limit the utility model; under any, have and usually know the knowledgeable in technical field; in the spirit and scope that do not break away from the utility model; when doing any change and retouching, so the protection domain of the utility model attached claim person of defining after looking is as the criterion.
Claims (15)
1. a contact panel, is characterized in that, comprising:
One cover plate;
One optical compensating layer; And
One sensing electrode layer, between this cover plate and this optical compensating layer, define an etching area and a non-etching area on this sensing electrode layer;
Wherein this optical compensating layer is and this sensing electrode layer forms optical match, this optical compensating layer can receive an incident light that penetrates this cover plate and this sensing electrode layer be in harmonious proportion the non-etching area of this etching area and this reflected light tone of corresponding formation.
2. contact panel according to claim 1, it is characterized in that, more comprise a shield assemblies, the formation zone of this shield assemblies is a non-visible area that defines this contact panel, and this shield assemblies is between this sensing electrode layer and this optical compensating layer in this non-visible area.
3. contact panel according to claim 1, it is characterized in that, more comprise a shield assemblies, the formation zone of this shield assemblies is a non-visible area that defines this contact panel, and this shield assemblies is between this cover plate and this sensing electrode layer at this non-visible area.
4. contact panel according to claim 1, is characterized in that, more comprises an index-matched layer, and wherein this index-matched layer and this optical compensating layer are symmetrically located at respectively the both sides of this sensing electrode layer.
5. contact panel according to claim 4, is characterized in that, wherein this index-matched layer is between this cover plate and this sensing electrode layer.
6. contact panel according to claim 5, it is characterized in that, more comprise a shield assemblies, the formation zone of this shield assemblies is a non-visible area that defines this contact panel, and this shield assemblies is between this sensing electrode layer and this optical compensating layer at this non-visible area.
7. contact panel according to claim 4, it is characterized in that, more comprise a shield assemblies, the formation zone of this shield assemblies is a non-visible area that defines this contact panel, all the other zones of this contact panel are a visible area, and this shield assemblies is between this cover plate and this index-matched layer at this non-visible area.
8. contact panel according to claim 7, is characterized in that, wherein this index-matched layer is between this shield assemblies and this sensing electrode layer at this non-visible area, is between this cover plate and this sensing electrode layer at this visible area.
9. contact panel according to claim 4, is characterized in that, wherein the material of this index-matched layer and thickness are same as this optical compensating layer.
10. contact panel according to claim 1, is characterized in that, wherein this optical compensating layer is an individual layer or the composite beds that are comprised of a plurality of layer.
11. contact panel according to claim 1, is characterized in that, wherein this optical compensating layer is the composite bed that a plurality of low-index layers, high refractive index layer replace storehouse formation.
12. contact panel according to claim 1, is characterized in that, wherein this optical compensating layer comprises glass, Nb
2O
5, SiO
2, ITO or TiO
2.
13. contact panel according to claim 1, is characterized in that, wherein this optical compensating layer is for comprising that wherein this first layer of compensation is SiO by the composite bed of one first layer of compensation and one second layer of compensation institute storehouse
2The layer and this second layer of compensation is Nb
2O
5Layer.
14. contact panel according to claim 13, is characterized in that, wherein the thickness of this first layer of compensation is that 5～60nm and refractive index are 1.20～1.70, and the thickness 1～15nm of this second layer of compensation and refractive index are 1.6～2.5.
15. contact panel according to claim 1, is characterized in that, more comprises a protective seam, is formed on this optical compensating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202039030U CN203311368U (en) | 2013-04-20 | 2013-04-20 | Touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202039030U CN203311368U (en) | 2013-04-20 | 2013-04-20 | Touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203311368U true CN203311368U (en) | 2013-11-27 |
Family
ID=49617560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202039030U Expired - Fee Related CN203311368U (en) | 2013-04-20 | 2013-04-20 | Touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203311368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677411A (en) * | 2013-12-06 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display device and manufacture method thereof |
| CN105807964A (en) * | 2014-12-29 | 2016-07-27 | 南昌欧菲光学技术有限公司 | Black frame touch panel |
| CN110989863A (en) * | 2019-11-28 | 2020-04-10 | 上海天马微电子有限公司 | Touch panel and display device |
-
2013
- 2013-04-20 CN CN2013202039030U patent/CN203311368U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677411A (en) * | 2013-12-06 | 2014-03-26 | 京东方科技集团股份有限公司 | Touch display device and manufacture method thereof |
| CN105807964A (en) * | 2014-12-29 | 2016-07-27 | 南昌欧菲光学技术有限公司 | Black frame touch panel |
| CN105807964B (en) * | 2014-12-29 | 2019-11-05 | 南昌欧菲光学技术有限公司 | Dark border touch panel |
| CN110989863A (en) * | 2019-11-28 | 2020-04-10 | 上海天马微电子有限公司 | Touch panel and display device |
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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: 20131127 |