Touch panel and method of manufacturing the same
First Claim
1. A touch panel comprising:
- an upper substrate having an upper conductive layer formed on a bottom surface thereof;
a lower substrate having a lower conductive layer formed thereon, the lower conductive layer opposed to the upper conductive layer with a predetermined space held therebetween; and
an adhesive layer bonding the upper substrate and the lower substrate;
wherein the adhesive layer is made of an adhesive material, and the adhesive material includes a thermoplastic resin and a tackifier, and bonding property of the adhesive material is enhanced by pressing.
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Accused Products
Abstract
Upper substrate 1 that has upper conductive layer 2 formed on a bottom surface thereof is bonded to lower substrate 3 that has lower conductive layer 4 opposed to upper conductive layer 2 with a predetermined space held therebetween on a top surface of lower substrate 3 by adhesive layer 15 that is made of a thermoplastic resin containing a tackifier dispersed therein and bonding property of the adhesive layer is enhanced by pressing. Addition of the tackifier increases flexibility of adhesive layer 15 and performs bonding with a large adhesive area at pressing. Thus, the width of adhesive layer 15 can be as small as approximately 1 to 1.5 mm. This can provide a smaller touch panel ensuring a predetermined touch sensitive area.
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Citations
11 Claims
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1. A touch panel comprising:
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an upper substrate having an upper conductive layer formed on a bottom surface thereof;
a lower substrate having a lower conductive layer formed thereon, the lower conductive layer opposed to the upper conductive layer with a predetermined space held therebetween; and
an adhesive layer bonding the upper substrate and the lower substrate;
wherein the adhesive layer is made of an adhesive material, and the adhesive material includes a thermoplastic resin and a tackifier, and bonding property of the adhesive material is enhanced by pressing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing a touch panel, the touch panel comprising:
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an upper substrate having an upper conductive layer formed on a bottom surface thereof;
a lower substrate having a lower conductive layer formed thereon, the lower conductive layer opposed to the upper conductive layer with a predetermined space held therebetween; and
an adhesive layer bonding the upper substrate and the lower substrate;
wherein the adhesive layer is made of an adhesive material, and the adhesive material includes a thermoplastic resin and a tackifier, and bonding property of the adhesive material is enhanced by pressing;
the method comprising the steps of;
printing the adhesive layer on at least one of the upper substrate and the lower substrate;
opposing the upper substrate to the lower substrate; and
bonding the upper substrate and the lower substrate by pressing the adhesive layer. - View Dependent Claims (10, 11)
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Specification