Touch panel and electronic device using the same
First Claim
1. A touch panel comprising a first transparent substrate forming a first transparent conductive film on the upside, a second transparent substrate forming a second transparent conductive film on the downside, and marginal outer circumferential parts for adhering the transparent substrates mutually while keeping the conductive films face to face across a specified interval, wherein a correction insulating layer for correcting step difference in the marginal outer circumferential parts is interposed in the marginal outer circumferential parts, an adhesive layer is formed at the position correcting the step difference by the insulating layer, and the first transparent substrate and second transparent substrate are adhered by the adhesive layer.
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Abstract
The invention presents a touch panel disposed at the display screen side of a liquid crystal display device or the like, and excellent in surface smoothness and environmental resistance. In marginal outer circumferential part 400B for adhering and fixing first transparent substrate 21 and second transparent substrate 31 face to face, insulating layer 27 for correction of step difference is disposed in order to make uniform the film thickness. Adhesive layer 29 is disposed on insulating layer 27, and first transparent substrate 21 and second transparent substrate 31 are adhered to each other. As a result, the adhesion fixing state if stabilized, and the adhesion strength is enhanced, and a touch panel suitable for car-mount unit excellent in surface smoothness and environmental resistance can be presented.
93 Citations
13 Claims
- 1. A touch panel comprising a first transparent substrate forming a first transparent conductive film on the upside, a second transparent substrate forming a second transparent conductive film on the downside, and marginal outer circumferential parts for adhering the transparent substrates mutually while keeping the conductive films face to face across a specified interval, wherein a correction insulating layer for correcting step difference in the marginal outer circumferential parts is interposed in the marginal outer circumferential parts, an adhesive layer is formed at the position correcting the step difference by the insulating layer, and the first transparent substrate and second transparent substrate are adhered by the adhesive layer.
- 7. A touch panel comprising a first transparent substrate forming a first transparent conductive film on the upside, a second transparent substrate forming a second transparent conductive film on the downside, a connector connected to at least one of the first transparent substrate and second transparent substrate, and a protective layer applied on the connection area of the connector, wherein the protective layer is not in contact with the transparent substrate not adhered to the connector out of the first transparent substrate and second transparent substrate.
Specification