Capacitive touch panel and a method of manufacturing the same
First Claim
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1. A capacitive touch panel comprising:
- a transparent substrate comprising a first surface and a second surface opposite to the first surface;
a sensing circuit layer placed on the second surface of the transparent substrate for sensing touch and generating sense signals, wherein the sensing circuit layer comprises a plurality of first electrodes and a plurality of second electrodes, wherein adjacent first electrodes are electrically connected through a first-axis wire, and wherein a metal jumper is overlapped with adjacent second electrodes to electrically connect the adjacent second electrodes while the metal jumper and the first-axis wire are electrically insulated by an insulating layer, wherein a width of the insulating layer is less than a distance between the adjacent second electrodes that overlap the metal jumper;
a mask layer, wherein reflectance of the mask layer is lower than that of the metal jumper, and wherein the mask layer is set between the metal jumper and the transparent substrate and interposed between the insulating layer and the transparent substrate to block light reflected by the metal jumper;
a black matrix laminated around the second surface of the transparent substrate; and
a protective layer configured to shield electromagnetic noise, wherein the protective layer is set between the black matrix and the transparent substrate.
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Abstract
The present invention relates to a touch technology and provides a capacitive touch panel which has low-visibility metal jumper. The touch panel comprises of a transparent substrate and at least one metal juniper. A mask layer, reflectance of which is lower than that of the metal jumper, is set between the metal jumper and the transparent substrate to block the light reflected by the metal jumper. The mask layer can reduce light reflection of the metal jumper so as to reduce visibility of the metal jumper.
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Citations
23 Claims
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1. A capacitive touch panel comprising:
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a transparent substrate comprising a first surface and a second surface opposite to the first surface; a sensing circuit layer placed on the second surface of the transparent substrate for sensing touch and generating sense signals, wherein the sensing circuit layer comprises a plurality of first electrodes and a plurality of second electrodes, wherein adjacent first electrodes are electrically connected through a first-axis wire, and wherein a metal jumper is overlapped with adjacent second electrodes to electrically connect the adjacent second electrodes while the metal jumper and the first-axis wire are electrically insulated by an insulating layer, wherein a width of the insulating layer is less than a distance between the adjacent second electrodes that overlap the metal jumper; a mask layer, wherein reflectance of the mask layer is lower than that of the metal jumper, and wherein the mask layer is set between the metal jumper and the transparent substrate and interposed between the insulating layer and the transparent substrate to block light reflected by the metal jumper; a black matrix laminated around the second surface of the transparent substrate; and a protective layer configured to shield electromagnetic noise, wherein the protective layer is set between the black matrix and the transparent substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A method for reducing visibility of a metal jumper in a capacitive touch panel comprising:
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providing a transparent substrate, wherein the transparent substrate has a first surface and a second surface opposite to the first surface; coating a transparent conductive layer on the second surface of the transparent substrate; forming a sensing circuit layer on the second surface of the transparent substrate by patterning the transparent conductive layer, wherein the sensing circuit layer comprises a plurality of first electrodes and a plurality of second electrodes, wherein adjacent first electrodes are electrically connected through a first-axis wire; placing an insulating layer on the first-axis wire after patterning the transparent conductive layer, wherein a width of the insulating layer is less than a distance between adjacent second electrodes; forming the metal jumper across the insulating layer, the metal jumper overlapping and electrically connecting the adjacent second electrodes, wherein the metal jumper and the first-axis wire are electrically insulated by the insulating layer; and placing a mask layer, wherein reflectance of the mask layer is lower than that of the metal jumper, wherein the mask layer is set between the transparent substrate and the metal jumper and interposed between the insulating layer and the transparent substrate, wherein the mask layer is coated on the second surface of the transparent substrate, and wherein the mask layer comprises a plurality of mask pieces, and one of the mask pieces corresponding to the metal jumper. - View Dependent Claims (11, 12, 13, 14, 15, 17)
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18. A method for reducing visibility of a metal jumper in a capacitive touch panel comprising:
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providing a transparent substrate, wherein the transparent substrate has a first surface and a second surface opposite to the first surface; coating a transparent conductive layer on the second surface of the transparent substrate; forming a sensing circuit layer on the second surface of the transparent substrate by patterning the transparent conductive layer, wherein the sensing circuit layer comprises a plurality of first electrodes and a plurality of second electrodes, wherein adjacent first electrodes are electrically connected through a first-axis wire; placing an insulating layer on the first-axis wire after patterning the transparent conductive layer, wherein a width of the insulating layer is less than a distance between adjacent second electrodes; forming the metal jumper across the insulating layer, the metal jumper overlapping and electrically connecting the adjacent second electrodes, wherein the metal jumper and the first-axis wire are electrically insulated by the insulating layer; and placing a mask layer, wherein reflectance of the mask layer is lower than that of the metal jumper, wherein the mask layer is set between the transparent substrate and the metal jumper and interposed between the insulating layer and the transparent substrate, wherein the metal jumper is overlapped with the adjacent second electrodes, and a length of the metal jumper is equal to the distance between the adjacent second electrodes. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification