CN105204671A - Touch panel and manufacturing method - Google Patents
Touch panel and manufacturing method Download PDFInfo
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- CN105204671A CN105204671A CN201410226823.6A CN201410226823A CN105204671A CN 105204671 A CN105204671 A CN 105204671A CN 201410226823 A CN201410226823 A CN 201410226823A CN 105204671 A CN105204671 A CN 105204671A
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Abstract
The invention discloses a touch panel which is defined to be provided with a non-visual area and a visual area corresponding to the non-visual area. The touch panel comprises a shielding layer formed on a substrate, a sensing electrode layer and a conducting protection layer; the non-visual area is defined by a forming area of the shielding layer, and the shielding layer and the substrate form a stair portion; the sensing electrode layer is formed on the substrate to be correspondingly located in the visual area and further extends to be formed on the shielding layer through the stair portion to be correspondingly located in the non-visual area; the conducting protection layer forms the surface of the sensing electrode layer at least by corresponding to the position of the stair portion. The invention further provides a manufacturing method of the touch panel. Accordingly, the problem that a transparent electrode layer is prone to generating cracking, breaking or stripping can be effectively solved, and the reliability of electrical connection between the transparent electrode layer and other circuits is improved.
Description
Technical field
The present invention relates to a kind of touch technology, more specifically, the present invention relates to a kind of contact panel and manufacture method thereof.
Background technology
The use of contact panel is day by day popularized; there is a kind of contact panel of slimming at present; this contact panel comprises substrate and touch control component; touch control component is directly formed at the side of substrate; the opposite side of substrate then touches for user to operate; substrate has defencive function and carrying touch control component function concurrently by this, can save the touch-control base material originally needing independently to be used for carrying touch control component.Because this kind of contact panel has frivolous advantage, be subject to the favor of people gradually.
In the contact panel that above-mentioned slimming designs, on substrate, usually first can form one deck shielding layer be used for defining surrounding zone, the region beyond surrounding zone is then belong to visible area.Then, form transparent electrode layer and make touch control component, wherein transparent electrode layer extends from the substrate of visible area to lay on the shielding layer of surrounding zone.Just screening effect can be reached because shielding layer need design several microns (μm) to the thickness of some tens of pm usually, therefore this height must be crossed over when transparent electrode layer is formed and laying could be extended from visible area to surrounding zone, it has certain degree of difficulty, that is transparency conducting layer can reduce because the thickness of shielding layer increases at the climbing span ability of shielding layer, and then transparent electrode layer easily produces the situation of fracture distress or stripping, the fiduciary level be electrically connected between transparent electrode layer and All other routes is reduced.
Summary of the invention
In view of above-mentioned, the present invention proposes a kind of contact panel and manufacture method thereof, and the height that can effectively solve because crossing over shielding layer when transparent electrode layer is formed could extend the problem generation of laying and producing fracture distress or stripping to surrounding zone from visible area.
The invention provides a kind of contact panel, being defined a non-visible area and a pair should the visible area of non-visible area, this contact panel comprises: a shielding layer, be formed on a substrate, wherein the forming region of this shielding layer defines this non-visible area, and this shielding layer and this substrate form an end difference; One sensing electrode layer, is formed on this substrate and is positioned at this visible area with correspondence, and further extends through this end difference and be positioned at this non-visible area to be formed on this shielding layer with correspondence; And a conductive protecting layer, at least to the position of end difference being formed at the surface of this sensing electrode layer.
The present invention also provides a kind of manufacture method of contact panel, wherein this contact panel comprise a non-visible area and a pair should the visible area of non-visible area, the step of the manufacture method of this contact panel comprises: form a shielding layer on a substrate, wherein the forming region of this shielding layer defines this non-visible area, and this shielding layer and this substrate form an end difference; Form a sensing electrode layer and be positioned at this visible area with correspondence on this substrate, and further this sensing electrode layer is extended through this end difference and be positioned at this non-visible area to be formed on this shielding layer with correspondence; And at least to the position of end difference forming a conductive protecting layer in the surface of this sensing electrode layer.
The contact panel that the invention provides and manufacture method thereof; the system position of end difference that after utilizing and forming sensing electrode layer step, corresponding shielding layer and substrate are formed again forms a conductive protecting layer in the surface of this sensing electrode layer; effectively solve with this problem that transparent electrode layer easily produces fracture distress or stripping, thus improve the fiduciary level be electrically connected between transparent electrode layer and All other routes.
For the above-mentioned of the present invention and other object, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate institute's accompanying drawings, be described in detail below.
Accompanying drawing explanation
Fig. 1 represents the local upper schematic diagram of the contact panel of one embodiment of the invention.
Fig. 2 represents the cross-sectional schematic along a-a ' profile line in the 1st figure.
Fig. 3 represents the local upper schematic diagram of the contact panel of another embodiment of the present invention.
Fig. 4 represents the cross-sectional schematic along b-b ' profile line in the 3rd figure.
Fig. 5 represents the process flow diagram of the manufacture method of the contact panel of one embodiment of the invention.
Fig. 6 represents the partial cutaway schematic of the electronic installation of one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Refer to the 1st figure and the 2nd figure, illustrate the local upper schematic diagram of the contact panel of one embodiment of the invention and the cross-sectional schematic along a-a ' profile line in the 1st figure respectively.The contact panel 20 of the present embodiment comprises substrate 21, shielding layer 22, sensing electrode layer 23 and a conductive protecting layer 24.Wherein, shielding layer 22 is formed on substrate 21, and the forming region of shielding layer 22 is used to define a non-visible area NV of contact panel 20, allows the region beyond corresponding to non-visible area NV be able to formation one visible area V.In embodiments of the invention, shielding layer 22 can be established and be formed at substrate 21 surface perimeter by ring, its non-visible area NV defined is located on around the V of visible area, in addition, shielding layer 22 also only can be formed at the side on substrate 21 surface, or both sides, then its non-visible area NV correspondence defined is positioned at a side or the dual-side of visible area V, and the present invention is not as limit.
In addition, the shielding layer 22 that the present embodiment is formed forms an end difference S because itself having certain thickness with substrate 21, the thickness of shielding layer 22 is the color and required screening effect that adopt according to actual shielding layer 22 and can adjusts, at this not by the present invention is limited.In embodiments of the invention, the material of substrate 21 is the base material that intensive treatment was entered in transparent strengthening, the non-conductive substrates such as glass, acryl, plastics can be such as adopted to design, surface thereof is provided with shielding layer 22 and other structures, another corresponding surface is the operating surface touched for user; The material of shielding layer 22 is ink or photoresistance, and it has and necessarily hides optical activity, is generally dark color, such as, and black, but in different product design demands, it can also be other colors.Shielding layer 22 can be the structure of individual layer, and also can be the structure of Multilayer stack, the present invention is not limited.
Sensing electrode layer 23 is formed on substrate 21 and is positioned at visible area V with correspondence, and further extends through end difference S and be positioned at non-visible area NV to be formed on shielding layer 22 with correspondence.Sensing electrode layer 23 is such as patterned processing procedure and is formed with a plurality of the first axial electrode 231 (as Y-axis electrode) and a plurality of the second axial electrode 232 (as X axis electrode) that are mutually electrically insulated in specific design.In embodiments of the invention, sensing electrode layer 23 is formed by transparent conductive material, such as tin indium oxide, aluminum zinc oxide, zinc paste, tin-antiomony oxide, tin ash, indium oxide, Nai meter Yin, carbon nanotube, Graphene etc. or aforementioned combination.
Conductive protecting layer 24 is that the position of at least corresponding end difference S is to be formed at the surface of sensing electrode layer 23; in order at least to carry out covering protection to the part that sensing electrode layer 23 corresponds to end difference S; strengthen the adhesion of sensing electrode layer 23 between end difference S place and shielding layer 22; the situation avoiding sensing electrode layer 23 to be easily peeling because of climbing in the position corresponding to end difference S, carries out reinforcement to sensing electrode layer 23 effectively.In addition, the conductive protecting layer 24 of the present embodiment is because having electric conductivity, and when sensing electrode layer 23, at aforementioned end difference S, the situation of fracture or breakage occurs, conductive protecting layer 24 also can continue the effect providing electric connection, maintains the function of sensing electrode layer 23.
More specifically; conductive protecting layer 24 is in order to reach the effectiveness of protection sensing electrode layer 23; do not affect again the function of sensing electrode layer 23, conductive protecting layer 24 be patterned processing procedure and only correspondence be formed at each first axial electrode 231 and each the second axial electrode 232 on the surface.In the present embodiment, a plurality of protection assembly 241 is comprised after conductive protecting layer 24 is patterned, protection assembly 241 respectively corresponding be formed at sensing electrode layer 23 each first axial electrode 231 and each the second axial electrode 232 on the surface, as shown in Figure 1, each first axial electrode 231 and each the second axial electrode 232 are subject to the protection of two protection assemblies 241 respectively, the protection assembly 241 of the present embodiment is the design such as adopting strip structure, and protect assembly 241 non-perpendicular and non-parallel border between visible area V and non-visible area NV, protection assembly 241 more can come along the edge of the first axial electrode 231 and the second axial electrode 232 further corresponding be formed at the first axial electrode 231 and the second axial electrode 232 on the surface.By this, reduce conductive protecting layer 24 and affect the optics of contact panel 20 and the chance of apparent visual effect.In embodiments of the invention; the material of conductive protecting layer 24 can be transparent conductive material, and it can be identical with the material of sensing electrode layer 23, in the making step forming sensing electrode layer 23; conductive protecting layer 24 can be formed, to save processing procedure in same step wherein.The material of conductive protecting layer 24 also can be nontransparent conductive material, such as metal, and the present invention is not as limit.
The contact panel 20 of the present embodiment more comprises wire 25, and wire 25 is formed at correspondence on shielding layer 22 to be positioned at non-visible area NV, and be electrically connected sensing electrode layer 23.In actual design, wire 25 and conductive protecting layer 24 can be such as adopt identical material and formed in same fabrication steps, allow the conductive protecting layer 24 designed by the present invention additionally can not increase fabrication steps.Wire 25 can be single-layer metal structure, the single-layer metal structure such as formed by copper, silver, aluminium, and in different embodiments of the invention, conduction 25 can be multi-layer metal structure, the three-decker such as formed by molybdenum-aluminium-molybdenum.
Next, the laminated setting of the contact panel 20 of the present embodiment is more specifically described.As shown in Figure 2, shielding layer 22 is formed on the first surface 211 of substrate 21, and shielding layer 22 has a sidewall 221 and away from the second face 222 of substrate 21.Wherein, the opposite side of the first surface 211 of substrate 21 is available to the surface of user's touching.Sensing electrode layer 23 is the first surface 211 being formed at substrate 21 at visible area V, and is formed to extend into non-visible area NV along the sidewall 221 of shielding layer 22 and the second face 222 further.The position of the corresponding end difference S of conductive protecting layer 24 is formed at the surface of sensing electrode layer 23; specifically, conductive protecting layer 24 is divided into three parts with the second face 222 of the first surface 211 of counterpart substrate 21, the sidewall 221 of shielding layer 22 and shielding layer 22 respectively to be formed at the surface of sensing electrode layer 23.Wire 25 is second faces 222 being formed at shielding layer 22, and is electrically connected sensing electrode layer 23.
From the above, the contact panel 20 of the present embodiment arrange in the position of corresponding end difference S conductive protecting layer 24 in sensing electrode layer 23 on the surface, at least part of sensing electrode layer 24 is allowed to be between conductive protecting layer 24 and shielding layer 22 in the position of end difference S, and in other embodiments of the present invention, conductive protecting layer 24 also can be formed between shielding layer 22 and sensing electrode layer 23, and correspondence is positioned at the position of end difference S, to slow down the difference in height between shielding layer 22 and substrate 21, climbing place of mild sensing electrode layer 23, thus reduce sensing electrode layer 23 in the risk of end difference S place appearance fracture.In addition, the contact panel 20 of the present embodiment there is no the layered structure of other parts and hierarchical relational and is limited, in the V of visible area, between sensing electrode layer 23 and substrate 21 and between shielding layer 22 and substrate 21, more anti-reflecting layer, blow-out disc etc. can be designed with.
Refer to the 3rd figure and the 4th figure, illustrate the local upper schematic diagram of the contact panel of another embodiment of the present invention and the cross-sectional schematic along b-b ' profile line in the 3rd figure respectively.The contact panel 20 ' of the present embodiment is all roughly the same with the contact panel 20 shown in the 1st figure and the 2nd figure on framework and extending design; discrepancy is, the protection assembly 241 ' of the conductive protecting layer 24 of the present embodiment is extend further to be electrically connected wire 25 at non-visible area NV.Wherein, due to the present embodiment for protection assembly 241 ' carry out extending design part be positioned at non-visible area NV; therefore the shape of the protection assembly 241 ' of extension and pattern comparatively elasticity; do not need optics and the apparent visual effect of considering contact panel 20 ' especially; the most simply can adopt shortest path to extend, such as can form the jagged elongate configuration shown in the 3rd figure by this.Certainly, the shape of concrete protection assembly 241 ' and pattern can adjust according to actual design demand, not limit by the present embodiment.
From the above; the present embodiment will be protected assembly 241 ' to extend and be electrically connected wire 25; except can effectively prevent sensing electrode layer 23 except end difference S lost efficacy because of fracture, breakage or stripping; the fiduciary level that more can be electrically connected between reinforcement sensing electrode layer 23 and wire 25 further, guarantees the Signal transmissions between sensing electrode layer 23 and wire 25.
Framework please based on previous embodiment consults the 5th figure, and the 5th figure illustrates the process flow diagram of the manufacture method of the contact panel of one embodiment of the invention.As shown in the figure, the step of the manufacture method of contact panel that the present embodiment provides comprises: provide a substrate 21 (step S101).Then, form a shielding layer 22 (step S102) on substrate 21, wherein the forming region of shielding layer 22 defines non-visible area NV, and shielding layer 22 and substrate 21 form an end difference S.Shielding layer 22 by carrying out printing or being coated with and etch and formed on substrate 21, and the mode of wherein printing can comprise serigraphy, and the number of times of printing can be single or multiple, and the process requirement according to reality adjusts.Adopt be coated with and the generation type etched time, the material of shielding layer 22 mostly is photoresistance, and concrete forming step is, is coated with whole photoresist on substrate, then forms shielding layer 22 by the mode of exposure imaging or laser-induced thermal etching.
Next, form a sensing electrode layer 23 and be positioned at visible area V with correspondence on substrate 21, and further sensing electrode layer 23 is extended through end difference S and be positioned at non-visible area NV (step S103) to be formed on shielding layer 22 with correspondence.The concrete generation type of sensing electrode layer 23 is relevant to its concrete structure, is this area known techniques, in the present invention, is not limited, therefore repeats no more.And then, at least form a conductive protecting layer 24 in the position of corresponding end difference S in the surface (step S104) of sensing electrode layer.By this, allow at least part of sensing electrode layer 23 be between conductive protecting layer 24 and shielding layer 22 in the position of end difference S, effectively prevent the sensing electrode layer 23 of contact panel 20,20 ' to lose efficacy because of fracture, breakage or stripping at end difference S.In addition, described manufacture method more comprises formation one wire 25 and be positioned at non-visible area with correspondence on shielding layer 22, in order to be electrically connected sensing electrode layer 23 (step S105).In another embodiment, after abovementioned steps S104 completes, more extensible conductive protecting layer 24 in non-visible area NV is electrically connected wire 25.
It is worth mentioning that; conductive protecting layer 24 and wire 25 can adopt identical material to make in actual design; as metal, abovementioned steps S104 and step S105 can merge into a step and form conductive protecting layer 24 and wire 25 simultaneously by this, at this not by the present invention is limited.In addition, substrate 21 mentioned in foregoing embodiments can such as adopt the non-conductive substrates such as glass, acryl, plastics to design, and aforementioned substrates more may further be the base material through strengthening.Moreover aforementioned transparent electrode layer 23 can have the transparent conductive materials such as tin indium oxide (IndiumTinOxide), zinc-tin oxide (ZincTinOxide) or zinc oxide aluminum (AluminumZincOxide).
Contact panel provided by the present invention more can be integrated in one further and have in the electronic installation of display module, allows contact panel become the operation inputting interface of described electronic installation.Refer to the 6th figure, represent the partial cutaway schematic of the electronic installation of one embodiment of the invention.Wherein, the present embodiment such as illustrates with the contact panel 20 described by the embodiment of aforementioned 1st figure and the 2nd figure.
Electronic installation 1 comprises housing 10, aforesaid contact panel 20 and display module 30.Wherein, contact panel 20 and display module 30 are fitted by an adhesion layer 40 (as optical cement), and laminating after whole contact panel 20 and display module 30 be arranged in housing 10.By this, user is to watch use in the side of contact panel 20 when using electronic installation 1, wherein display module 30 is that show image is watched to user, and the substrate 21 of contact panel 20 is then available to user on a relative surface on the surface carrying shielding layer 22 and sensing electrode layer 23 carries out touching operation.
In sum; the invention provides contact panel and manufacture method thereof that one has conductive protecting layer; by the setting of conductive protecting layer; sensing electrode layer itself and the electric connection fiduciary level between sensing electrode layer and wire can be improved, and then sensing electrode layer can be lowered in end difference fracture distress or the risk that namely cannot use after peeling off.
Although the present invention with aforementioned embodiment disclose as above, so itself and be not used to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the invention, when doing a little change and retouching.Therefore the present invention protection domain when depending on after the attached claim person of defining be as the criterion.
Claims (15)
1. a contact panel, is characterized in that, being defined a non-visible area and a pair should the visible area of non-visible area, and this contact panel comprises:
One shielding layer, is formed on a substrate, and wherein the forming region of this shielding layer defines this non-visible area, and this shielding layer and this substrate form an end difference;
One sensing electrode layer, is formed on this substrate and is positioned at this visible area with correspondence, and further extends through this end difference and be positioned at this non-visible area to be formed on this shielding layer with correspondence; And
One conductive protecting layer, at least to the position of end difference being formed at the surface of this sensing electrode layer.
2. as claim according to as described in claim 1 contact panel, it is characterized in that, more comprise a wire, be formed on shielding layer and be positioned at this non-visible area with correspondence, and be electrically connected this sensing electrode layer.
3. contact panel according to claim 2, is characterized in that, this conductive protecting layer is extend further to be electrically connected this wire in this non-visible area.
4. contact panel according to claim 1, is characterized in that, this sensing electrode layer comprises a plurality of first axial electrode and a plurality of the second axial electrode of being mutually electrically insulated.
5. contact panel according to claim 4, is characterized in that, this conductive protecting layer comprises a plurality of protection assembly, respectively correspondence be formed at each those first axial electrode and those the second axial electrode on the surface.
6. contact panel according to claim 5, is characterized in that, those protection assemblies are strip structure.
7. contact panel according to claim 6, is characterized in that, those protect assemblies non-perpendicular and non-parallel border between this visible area and this non-visible area.
8. contact panel according to claim 6, is characterized in that, the edge of those protection assemblies those first axial electrode and those second axial electrode along each come corresponding be formed at each those first axial electrode and those the second axial electrode on the surface.
9. contact panel according to claim 6, is characterized in that, those protection assemblies are zigzag strip structure.
10. contact panel according to claim 1, is characterized in that, this conductive protecting layer is metal material.
The manufacture method of 11. 1 kinds of contact panels, is characterized in that, this contact panel comprises a non-visible area and a pair should the visible area of non-visible area, and the step of the manufacture method of this contact panel comprises:
Form a shielding layer on a substrate, wherein the forming region of this shielding layer defines this non-visible area, and this shielding layer and this substrate form an end difference;
Form a sensing electrode layer and be positioned at this visible area with correspondence on this substrate, and further this sensing electrode layer is extended through this end difference and be positioned at this non-visible area to be formed on this shielding layer with correspondence; And
At least to the position of end difference forming a conductive protecting layer in the surface of this sensing electrode layer.
The manufacture method of 12. contact panels according to claim 11, is characterized in that, more comprises formation one wire and be positioned at this non-visible area with correspondence on this shielding layer, in order to be electrically connected this sensing electrode layer.
The manufacture method of 13. contact panels according to claim 12, is characterized in that, more comprises and extends in this conductive protecting layer in this non-visible area to be electrically connected this wire.
The manufacture method of 14. contact panels according to claim 12, is characterized in that, this wire and this conductive protecting layer adopt same material and formed in same step.
The manufacture method of 15. contact panels according to claim 11, is characterized in that, this conductive protecting layer is metal material.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201410226823.6A CN105204671A (en) | 2014-05-27 | 2014-05-27 | Touch panel and manufacturing method |
TW103128909A TWI552042B (en) | 2014-05-27 | 2014-08-22 | Touch panel and method of manufacturing the same |
TW103215021U TWM490615U (en) | 2014-05-27 | 2014-08-22 | Touch panel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410226823.6A CN105204671A (en) | 2014-05-27 | 2014-05-27 | Touch panel and manufacturing method |
Publications (1)
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CN105204671A true CN105204671A (en) | 2015-12-30 |
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Family Applications (1)
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CN201410226823.6A Pending CN105204671A (en) | 2014-05-27 | 2014-05-27 | Touch panel and manufacturing method |
Country Status (2)
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CN (1) | CN105204671A (en) |
TW (2) | TWI552042B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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TW201643668A (en) | 2015-06-11 | 2016-12-16 | 原相科技股份有限公司 | Conducting structure, display device and touch control device applying the conducting structure |
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CN202018644U (en) * | 2011-04-25 | 2011-10-26 | 富创得科技股份有限公司 | Touch panel structure |
WO2012011390A1 (en) * | 2010-07-22 | 2012-01-26 | アルプス電気株式会社 | Input device and method of manufacturing the same |
CN202976020U (en) * | 2012-11-02 | 2013-06-05 | 宸鸿科技(厦门)有限公司 | Touch device |
CN103744565A (en) * | 2014-01-08 | 2014-04-23 | 湖州健邦科技有限公司 | Touch screen and manufacturing method thereof |
CN203930732U (en) * | 2014-05-27 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | Contact panel |
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JP2000137556A (en) * | 1998-11-02 | 2000-05-16 | Sony Computer Entertainment Inc | Electronic equipment and method for displaying information |
TWM412422U (en) * | 2011-04-14 | 2011-09-21 | Fortrend Taiwan Scient Corp | Touch panel structure |
TWM443888U (en) * | 2012-06-22 | 2012-12-21 | Chunghwa Picture Tubes Ltd | Touch panel having line breakage preventing structure |
CN103631409B (en) * | 2012-08-21 | 2017-01-11 | 宸鸿科技(厦门)有限公司 | Touch device and manufacturing method thereof |
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2014
- 2014-05-27 CN CN201410226823.6A patent/CN105204671A/en active Pending
- 2014-08-22 TW TW103128909A patent/TWI552042B/en active
- 2014-08-22 TW TW103215021U patent/TWM490615U/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012011390A1 (en) * | 2010-07-22 | 2012-01-26 | アルプス電気株式会社 | Input device and method of manufacturing the same |
CN202018644U (en) * | 2011-04-25 | 2011-10-26 | 富创得科技股份有限公司 | Touch panel structure |
CN202976020U (en) * | 2012-11-02 | 2013-06-05 | 宸鸿科技(厦门)有限公司 | Touch device |
CN103744565A (en) * | 2014-01-08 | 2014-04-23 | 湖州健邦科技有限公司 | Touch screen and manufacturing method thereof |
CN203930732U (en) * | 2014-05-27 | 2014-11-05 | 宸鸿科技(厦门)有限公司 | Contact panel |
Also Published As
Publication number | Publication date |
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TW201545015A (en) | 2015-12-01 |
TWM490615U (en) | 2014-11-21 |
TWI552042B (en) | 2016-10-01 |
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Application publication date: 20151230 |