Source: http://www.patentsencyclopedia.com/app/20120299867
Timestamp: 2019-01-18 15:53:39
Document Index: 336029241

Matched Legal Cases: ['application No. 201110157883', 'arts 108', 'arts 108', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350', 'arts 350']

TOUCH-CONTROL PATTERN STRUCTURE, MANUFACTURE METHOD THEREOF AND TOUCH PANEL CONTAINING THEREIN - Patent application
Patent application title: TOUCH-CONTROL PATTERN STRUCTURE, MANUFACTURE METHOD THEREOF AND TOUCH PANEL CONTAINING THEREIN
Inventors: Jing Yu (Xiamen, CN) Jing Yu (Xiamen, CN) Huilin Ye (Xiamen, CN) Rongwu Wang (Longyan, CN)
Patent application number: 20120299867
A touch-control pattern structure is provided to reinforce capacitive sensing layer to increase the durability and reliability. The touch-control pattern structure comprises a capacitive sensing layer having two intersected electrode groups and a insulating layer located between the two intersected electrode groups at intersections of the two intersected electrode groups, and a reinforcing layer placed on the capacitive sensing layer at the intersection of the two intersected electrode groups at the edge of the insulating layer. Furthermore, the method of forming the touch-control pattern structure is also provided.
1. A touch-control pattern structure, comprising: a capacitive sensing layer having two intersected electrode groups; a insulating layer located between said two intersected electrode groups at intersections of said two intersected electrode groups; and a reinforcing layer placed on said capacitive sensing layer at said intersection of said two intersected electrode groups at edge of said insulating layer.
2. The touch-control pattern structure of claim 1, wherein said two intersected electrode groups comprise a plurality of first electrode groups on a first direction and a plurality of second electrode groups on a second direction.
3. The touch-control pattern structure of claim 2, wherein said first electrode groups comprise a plurality of first electrode cells and a plurality of first wires connecting adjacent said first electrode cells; said second electrode groups comprise a plurality of second electrode cells and a plurality of second wires connecting adjacent said second electrode cells; said insulating layer is placed between said first wires and said second wires.
4. The touch-control pattern structure of claim 3, wherein a plurality of jumping parts are formed on said first wires at edge of said insulating layer, and said reinforcing layer is placed on said first wires at said jumping parts.
5. The touch-control pattern structure of claim 3, wherein a plurality of jumping parts are formed on said second wires at edge of said insulating layer, and said reinforcing layer is placed on said second wires at said jumping parts.
6. The touch-control pattern structure of claim 1, wherein said reinforcing layer comprises a plurality of reinforcing elements.
7. The touch-control pattern structure of claim 1, wherein said reinforcing layer is made of conductive material.
8. The touch-control pattern structure of claim 7, wherein said conductive material is metal.
9. The touch-control pattern structure of claim 7, wherein said conductive material is transparent conductive material.
10. The touch-control pattern structure of claim 3, wherein said first wires and said second wires are made of transparent conductive material.
11. The touch-control pattern structure of claim 3, wherein said first wires and said second wires are made of metal.
12. The touch-control pattern structure of claim 3, wherein said first electrode cells and said second electrode cells are made of transparent conductive material.
13. The touch-control pattern structure of claim 1, wherein said insulating layer comprises a plurality of insulating elements.
14. The touch-control pattern structure of claim 1, further comprising a periphery circuit connected to said two intersected electrode groups.
15. A method of forming a touch-control pattern structure, comprising steps of: a) forming a capacitive sensing layer having two intersected electrode groups on a substrate; b) forming a insulating layer located between said two intersected electrode groups at intersections of said two intersected electrode groups; and c) forming a reinforcing layer placed on said capacitive sensing layer at the intersection of said two intersected electrode groups at edge of said insulating layer.
16. The method of forming a touch-control pattern structure of claim 15, wherein said two intersected electrode groups comprise a plurality of first electrode groups on a first direction and a plurality of second electrode groups on a second direction.
17. The method of forming a touch-control pattern structure of claim 16, wherein said first electrode groups comprise a plurality of first electrode cells and a plurality of first wires connecting adjacent said first electrode cells; said second electrode groups comprise a plurality of second electrode cells and a plurality of second wires connecting adjacent said second electrode cells; said insulating layer is placed between said first wires and said second wires.
18. The method of forming a touch-control pattern structure of claim 17, wherein a plurality of jumping parts are formed on said first wires at edge of said insulating layer, and said reinforcing layer is placed on said first wires at said jumping parts.
19. The method of forming a touch-control pattern structure of claim 17, wherein said step (a) comprises steps of: a1) forming said second wires on said substrate; a2) forming said second electrode cells; a3) forming said insulating layer on said second electrode cells; and a4) forming said first electrode cells and said first wires.
20. The method of forming a touch-control pattern structure of claim 17, wherein said step (a) comprises steps of: a1) forming said second wires on said substrate; a2) forming said insulating layer on said second electrode cells; and a3) forming said second electrode cells, said first electrode cells and said first wires at the same time.
21. The method of forming a touch-control pattern structure of claim 17, wherein a plurality of jumping parts are formed on said second wires at edge of said insulating layer, and said reinforcing layer is placed on said second wires at said jumping parts.
22. The method of forming a touch-control pattern structure of claim 21, wherein said step (a) comprises steps of: a1) forming said second electrode cells, said first electrode cells and said first wires on said substrate at the same time; a2) forming said insulating layer on said first electrode cells; and a3) forming said second wires.
23. The method of forming a touch-control pattern structure of claim 16, further comprising a step of forming a periphery circuit connecting to said first electrode groups and said second electrode groups.
24. The method of forming a touch-control pattern structure of claim 23, wherein said periphery circuit and said reinforcing layer are formed in one step.
25. A touch panel, comprising: a substrate; said touch-control pattern structure of claim 1 for generating touch sensing signals; and a controller for receiving and processing said touch sensing signals.
[0001] This application claims the benefit of China application No. 201110157883.3, filed on May 27, 2011.
[0002] The present invention relates to touch-control technology, particularly to a touch-control pattern structure, manufacture method and touch panel which have the touch-control pattern structure.
[0003] FIG. 1 is the schematic diagram of the traditional touch-control pattern structure. Please refer to FIG. 1, traditional touch-control pattern structure 100 comprises conductive jumping wires 102 on the surface of a substrate 101, a insulating layer 103 disposed on the conductive jumper wires 102, and a conductive layer 104 disposed on the insulating layer 103. Wherein, this conductive layer 104 includes conductive units in two different directions, horizontal direction and vertical direction, and wire 107. The conductive units 105 of the same group in horizontal direction are connected by the conductive jumping wire 102, while the conductive units 106 of the same group in vertical direction are connected by the wire 107 (the material is consistent with the conductive units of vertical direction). Due to the insulating layer 103 between conductive jumping wires 102 and wires 107, the conductive units on the two directions are insulated from each other, in order to form coupling capacity
[0004] However, the thickness of insulating layer 103 cannot be designed too thin, it will result in the conductive units 105, 106 in two directions occur coupling puncture to effect the reliability of touch panel. Normally, the thickness the conductive layer 104 is extremely thin, approximately 500˜1000 angstrom, while the thickness of insulating layer 103 is approximately 2 um. The insulating layer 103 is thicker than wires 107. Thus, the jumping parts 108 of the wire 107 at the edge of the insulating layer 103 (the jumping parts 108 is omitted in part A in FIG. 1 to show the wire 107 more clearly) can easily occur fracture, to cause the reduction of the durability and reliability of the touch panel.
[0005] One objective of the present invention is to provide a new touch-control pattern structure, it can reinforce capacitive sensing layer to increase the durability and reliability.
[0006] The touch-control pattern structure of the present invention comprises a capacitive sensing layer having two intersected electrode groups and an insulating layer located between said two intersected electrode groups at intersections of said two intersected electrode groups, and a reinforcing layer placed on said capacitive sensing layer at the intersection of said two intersected electrode groups at edge of said insulating layer.
[0007] Another objective of the present invention is to provide the method of forming the touch-control pattern structure. The method includes the following steps: forming a capacitive sensing layer having two intersected electrode groups on a substrate; forming a insulating layer located between said two intersected electrode groups at intersections of said two intersected electrode groups; and forming a reinforcing layer placed on said capacitive sensing layer at the intersection of said two intersected electrode groups at the edge of said insulating layer.
[0008] Moreover, another objective of the present invention is also to provide a touch panel. The touch panel comprises a substrate, the touch-control pattern structure provided by the present invention for generating touch sensing signals, and a controller for receiving and processing said touch sensing signals.
[0009] The reinforcing layer is used for reinforcing the jumping parts of the wire at the edge of the insulating layer to avoid fracture. If the reinforcing layer is made of conductive materials, even though the jumping parts of the wire as mentioned above fractured, the reinforcing layer can still play a role of conduction as wires to raise the durability and reliability of the capacity sensing layer as well as the touch panel.
[0010] The skilled artisan will understand that the drawings, described below, are for illustration purposes only. The drawings are not intended to limit the scope of the present teachings in any way. Like reference numerals designate corresponding parts throughout the several views.
[0011] FIG. 1 is a schematic diagram of traditional touch-control pattern structure;
[0012] FIG. 2 is a schematic diagram of the first embodiment of the touch-control pattern structure;
[0013] FIG. 3 is a enlarge diagram of Part B of FIG. 2;
[0014] FIG. 4 is a laminar diagram of FIG. 2;
[0015] FIG. 5 is a schematic diagram of the second embodiment of the touch-control pattern structure;
[0016] FIG. 6 is a enlarge diagram of Part C of FIG. 5; and
[0017] FIG. 7 is a laminar diagram of FIG. 5.
[0018] FIG. 2 is the schematic diagram of touch-control pattern structure of the present invention. Referring to FIG. 2, a touch-control pattern structure 300 includes the capacitive sensing layer 320 which is disposed on the surface of the substrate 310. The capacitive sensing layer 320 includes a plurality of separated first electrode groups 321 evenly arrayed on the first direction, and a plurality of separated second electrode groups 322 arrayed on the second direction. Wherein, each first electrode group 321 includes a plurality of first electrode cells 3211, and two adjacent first electrode cells 3211 located on the same first electrode group are connected by the first wire 3212. In the same manner, each second electrode group 322 includes a plurality of second electrode cells 3221, and those second electrode cells 3221 are separated from each other. The second electrode cells 3221 are arranged at both sides of the first wires 3212, and the two adjacent second electrode cells 3221 in the same second electrode group 322 are connected by the second wire 3222. Wherein, the first wires 3212 cross over the second wires 3222, and an insulating layer 330 is placed between the first wires 3212 and the second wires 3222 (shown in FIG. 3). Particularly, the insulating layer 330 comprises a plurality of insulating elements 331; each insulating element 331 is sited between each second wire 3222 and the first wire 3212 corresponding to each of second wires 3222 to insulate the first wires 3212 from the second wires 3222.
[0019] Referring to FIGS. 2, 3 and 4, the second wires 3222 are disposed on the substrate 310, the first wires 3212 are located on the second wires 3222, and the insulating layer 330 is located between them. A reinforcing layer 340, which is disposed on the top of the first wires 3212 opposite to the insulating layer 330, is placed on jumping parts 350 of the first wires 3212 at the edge of the insulating layer 330 (shown in FIG. 3), shown as dotted line in the FIG. 3, in order to reinforce the first wires 3212 to avoid fracture, consequently increase the durability and reliability of the touch panel.
[0020] More particularly, the reinforcing layer 340 includes a plurality of reinforcing elements 341. Thus, the reinforcing elements 341 are separated from each other and placed on jumping parts 350 of the first wires 3212 at the edge of the insulating layer 330. Those reinforcing elements 341 are arranged evenly. In alternative embodiments, the reinforcing elements 341 can be arranged unevenly as well. The shape of the reinforcing elements 341 can be dot, piece, strip and so on. The distribution and size of reinforcing elements 341 can be adjusted on the basis of design requirement without affecting the optical performance of touch panel.
[0021] In one embodiment, the reinforcing layer 340 is made of conductive materials. Thus, even though the first wires 3212 fractured at the jumping parts 350, the reinforcing layer 340 can still play a role of conduction as wire without affecting the normal performance of the touch panel, to further raise the durability and reliability of the touch panel. The reinforcing layer 340 can be made of transparent conductive materials, e.g. tin indium oxide (ITO), indium zinc oxide or zinc oxide etc. or metal, for its conductivity and ductility, e.g. molybdenum, aluminum or copper etc.
[0022] In the above mentioned embodiments, the first electrode cells 3211 and the second electrode cells 3221 are made of transparent conductive materials, such as tin indium oxide (ITO), indium zinc oxide, aluminum or zinc oxide etc. The first wires 3212 and second wires 3222 are also made of transparent conductive materials, such as tin indium oxide (ITO), indium zinc oxide, aluminum or zinc oxide etc., by etching, sputtering or screen-printing. Also, the first wires 3212 and second wires 3222 can be made of metal materials, e.g. copper, aluminum etc. The insulating layer 330 is made of transparent insulating materials.
[0023] Furthermore, a plurality of first electrode groups 321 and second electrode groups 322 are connected to a periphery circuit separately (not shown), and those periphery circuit are placed on the surface of the substrate.
[0024] The method of forming the first embodiment of the touch-control pattern structure is: referring to FIG. 4, firstly, forming a plurality of second wires 3222 on a surface of the substrate 310, and then forming an insulating layer 330 on the second wires 3222. The insulating layer 330 specifically comprises a plurality of insulating elements 331 covering each corresponding second wire 3222. Afterward, on the same surface of the substrate 310 form the first electrode cells 3211, second electrode cells 3221 and the first wires 3212 connecting first cells 3211 at the same time. Wherein, a plurality of first cells 3211 and the first wires 3212 constitute a plurality of first electrode groups 321, and a plurality of second electrode cells 3221 and the second wires 3222 constitute a plurality of second electrode groups 322. Particularly, each second wire 3222 connects two adjacent second electrode cells 3221 belong to the same second electrode group 322. The first electrode groups 321 and the second electrode groups 322 constitute the capacitive sensing layer 320.
[0025] Referring to FIGS. 2 and 3, the first electrode cells 3211, the second electrode cells 3221 and the second wires 3222 are located on the same layer. However, the first wires 3212 are placed over the second wires 3222, and crossed over the insulating elements 331. Therefore, the first wires 3212 are placed higher than the first electrode cells 3211 connected by the first wires 3212, so as to the first wires 3212 form a structure of slope that is the jumping parts 350 (shown in FIG. 3 as dotted line) existed at the edge of the insulating elements 331. Thus, the jumping parts 350 of the first wires 3212 will generate stress to cause itself become weaker which condition will be more apparent if the first wires 3212 are made of transparent conductive materials (ITO) or indium zinc oxide aluminum or zinc oxide etc.
[0026] After forming the capacitive sensing layer 320, as shown in FIG. 3 and FIG. 4, on the jumping parts 350 of the first wires 3212 at the edge of the insulating elements 331 form the reinforcing layer 340 which comprises a plurality of reinforcing elements 341. Those reinforcing elements 341 are arranged evenly. In alternative embodiments, the reinforcing elements 341 can be arranged unevenly as well. The shape of the reinforcing elements 341 can be dot, piece, strip and so on. The distribution and size of reinforcing elements 341 can be adjusted on the basis of design requirement without affecting the optical performance of touch panel.
[0027] In one embodiment, the reinforcing layer 340 is made of conductive materials. Thus, even though the first wires 3212 fractured at the jumping parts 350, the reinforcing layer 340 can still play a role of conduction as wire without affecting the normal performance of the touch panel, to further raise the durability and reliability of the touch panel. The reinforcing layer 340 can be made of transparent conductive materials, e.g. tin indium oxide (ITO), indium zinc oxide or zinc oxide etc., or metal, for its conductivity and ductility, e.g. molybdenum, aluminum or copper etc.
[0028] Furthermore, the manufacture method also includes the step of forming a periphery circuit (not shown) which is placed on the surface of the substrate 310. The first electrode groups 321 and the second electrode groups 322 are both connected with the periphery circuit separately. In one embodiment, the periphery circuit and the reinforcing layer 340 are formed in one step.
[0029] The manufacture method can also be implemented in different order. After forming the second wire 3222, the second electrode cells 3221 are form on the same surface of the substrate 310, and the second wires 3222 connect the adjacent second electrode cells 3221. After forming the insulating layer 330, the first electrode cells 3211 and the first wires 3212 are formed. Wherein the first wires 3212 connecting the adjacent first electrode cells 3211 cross over the insulating layer 330. Finally, the reinforcing layer 340 is formed on the first wires 3212 mentioned above.
[0030] Referring to FIG. 5, another embodiment of the present invention provides a touch-control pattern structure 300. The touch-control pattern structure 300 includes the capacitive sensing layer 320 which is disposed on the surface of the substrate 310. The capacitive sensing layer 320 includes a plurality of separated first electrode groups 321 evenly arrayed on the first direction, and a plurality of separated second electrode groups 322 arrayed on the second direction. Wherein, each first electrode group 321 includes a plurality of first electrode cells 3211, and two adjacent first electrode cells 3211 located on the same first electrode group are connected by the first wire 3212. In the same manner, each second electrode group 322 includes a plurality of second electrode cells 3221, and those second electrode cells 3221 are separated from each other. The second electrode cells 322 are arranged at the both sides of the first wires 3212, and the two adjacent second electrode cells 3221 in the same second electrode group 322 are connected by the second wire 3222. Wherein, the first wires 3212 cross over the second wires 3222, and an insulating layer 330 is placed between the first wires 3212 and the second wires 3222 (shown in FIG. 3). Particularly, the insulating layer 330 comprises a plurality of insulating elements 331; each insulating element 331 is sited between each second wire 3222 and the first wire 3212 corresponding to each of second wires 3222 to insulate the first wires 3212 from the second wires 3222.
[0031] Referring to FIG. 7, the first wires 3212 are disposed on the substrate 310, the second wires 3222 are located on the first wires 3212, with the insulating layer 330 located between them. A reinforcing layer 340, which is disposed on the top of the second wires 3222 opposite to the insulating layer 330, is placed on jumping parts 350 of the second wires 3222 at the edge of the insulating layer 330, shown as dotted line in the FIG. 6, in order to reinforce the second wires 3222 to avoid fracture, consequently increase the durability and reliability of the touch panel.
[0032] More particularly, the reinforcing layer 340 includes a plurality of reinforcing elements 341. Thus, the reinforcing elements 341 are separated from each other and placed on jumping parts 350 of the second wires 3222 at the edge of the insulating layer 330. Those reinforcing elements 341 are arranged evenly. In alternative embodiments, the reinforcing elements 341 can be arranged unevenly as well. The shape of the reinforcing elements 341 can be dot, piece, strip and so on. The distribution and size of reinforcing elements 341 can be adjusted on the basis of design requirement without affecting the optical performance of touch panel.
[0033] In one embodiment, the reinforcing layer 340 is made of conductive materials. Thus, even though the second wires 3222 fractured at the jumping parts 350, the reinforcing layer 340 can still play a role of conduction as wire without affecting the normal performance of the touch panel, to further raise the durability and reliability of the touch panel. The reinforcing layer 340 can be made of transparent conductive materials, e.g. tin indium oxide (ITO), indium zinc oxide or zinc oxide etc., or metal, for its conductivity and ductility, e.g. molybdenum, aluminum or copper etc.
[0034] In the above mentioned embodiments, the first electrode cells 3211 and second electrode cells 3221 are made of transparent conductive materials, such as tin indium oxide (ITO), indium zinc oxide, aluminum or zinc oxide etc. The first wires 3212 and second wires 3222 are also made of transparent conductive materials, such as tin indium oxide (ITO), indium zinc oxide, aluminum or zinc oxide etc., by etching, sputtering or screen-printing. Also, the first wires 3212 and second wires 3222 can be made of metal materials, e.g. copper, aluminum etc. The insulating layer 330 is made of transparent insulating materials.
[0035] Furthermore, a plurality of first electrode groups 321 and second electrode groups 322 are connected to a periphery circuit separately (not shown), and those periphery circuit are placed on the surface of the substrate.
[0036] Referring to FIG. 5 to FIG. 7, Firstly, forming a plurality of first electrode cells 3211, second electrode cells 3221 and the first wires 3212 connecting first cells 3211 on a surface of the substrate 310 at the same time, then forming an insulating layer 330 on the first wires 3212. The insulating layer 330 specifically comprises a plurality of insulating elements 331 covering each corresponding first wire 3212. Afterward, a plurality of second wires 3222 are formed on each insulating element 331. Wherein, a plurality of first cells 3211 and the first wires 3212 constitute a plurality of first electrode groups 321, and a plurality of second electrode cells 3221 and the second wires 3222 constitute a plurality of second electrode groups 322. Particularly, each second wire 3222 connects two adjacent second electrode cells 3221 belong to the same second electrode group 322. The first electrode groups 321 and the second electrode groups 322 constitute the capacitive sensing layer 320.
[0037] Referring to FIG. 5 to FIG. 7, the first electrode cells 3211, the second electrode cells 3221 and the first wires 3212 are located on the same layer. However, the second wires 3222 are placed over the first wires 3212, and crossed over the insulating elements 331. Therefore, the second wires 3222 are placed higher than the second electrode cells 3221 connected by the second wires 3222, so as to the second wires 3222 form a structure of slope that is the jumping parts 350 (shown in FIG. 6 as dotted line) existed at the edge of the insulating elements 331. Thus, the jumping parts 350 of the second wires 3222 will generate stress to cause itself become weaker. If the second wires 3222 are made of transparent conductive materials (ITO) or indium zinc oxide aluminum or zinc oxide etc., it will be more apparent.
[0038] After forming the capacitive sensing layer 320, on the jumping parts 350 of the second wires 3222 at the edge of the insulating elements 331 form the reinforcing layer 340 which comprises a plurality of reinforcing elements 341. Those reinforcing elements 341 are arranged evenly. In alternative embodiments, the reinforcing elements 341 can be arranged unevenly as well. The shape of the reinforcing elements 341 can be dot, piece, strip and so on. The distribution and size of reinforcing elements 341 can be adjusted on the basis of design requirement without affecting the optical performance of touch panel.
[0039] In another embodiment, the reinforcing layer 340 is made of conductive materials. Thus, even though the second wires 3222 fractured at the jumping parts 350, the reinforcing layer 340 can still play a role of conduction as wire without affecting the normal performance of the touch panel, to further raise the durability and reliability of the touch panel. The reinforcing layer 340 can be made of transparent conductive materials, e.g. tin indium oxide (ITO), indium zinc oxide or zinc oxide etc. or metal, for its conductivity and ductility, e.g. molybdenum, aluminum or copper etc.
[0040] Furthermore, the manufacture method also includes the step of forming a periphery circuit (not shown) which is placed on the surface of the substrate 310. The first electrode groups 321 and the second electrode groups 322 are both connected with the periphery circuit separately. In one embodiment, the periphery circuit and the reinforcing layer 340 are formed in one step.
[0041] Need to be explained is, the manufacture technology of first direction electrode cell 3211, the second direction electrode cell 3221 and the first direction wire 3212 mentioned above are formed through the technology of well-known etching, sputtering and screen printing etc.
[0042] The present invention provides a touch panel which includes the touch-control pattern structure 300 as mentioned above as well as the substrate 310. It can be used for generating touch sensing signals; and the periphery circuit is used for transmitting the touch sensing signals to a controller (not shown), the function of the controller is to receive and process the touch sensing signals.
[0043] While certain embodiments have been shown and described, various modifications and substitutions may be made thereto without departing from the spirit and scope of the invention. Therefore, it is to be understood that the present invention has been described by way of illustration and not limitations.
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