Coordinate input device including a substrate having thinner central portion
First Claim
1. A coordinate input device comprising:
- a first light-transmitting substrate, and a second light-transmitting substrate having flexibility, which are arranged to face each other with a void space therebetween,a first light-transmitting electrode layer formed on a inner side of the first light-transmitting substrate, a second light-transmitting electrode layer formed on an inner side of the second light-transmitting substrate, andwhen an external surface of the second light-transmitting substrate is pressed by an indicator, the first light-transmitting electrode layer and the second light-transmitting electrode layer are partially and electrically connected to each other in a pressed portion so as to output coordinate information of the pressed portion,wherein the external surface of the first light-transmitting substrate is different in thickness at a central portion and at a peripheral portion, andwherein the thickness of the central portion of the first light-transmitting substrate is smaller than the thickness of the peripheral portion.
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Accused Products
Abstract
A liquid crystal display device contains a coordinate input device on the front side of a liquid crystal display unit. The coordinate input device is of a resistive contact type and includes a first light-transmitting substrate, and a second light-transmitting substrate having flexibility, which are arranged to face each other with a void space therebetween. A first light-transmitting electrode layer is formed on the inner side of the first light-transmitting substrate. A second light-transmitting electrode layer is formed on the inner side of the second light-transmitting substrate. The first light-transmitting substrate is different in thickness at its central portion and at its peripheral portion.
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Citations
10 Claims
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1. A coordinate input device comprising:
- a first light-transmitting substrate, and a second light-transmitting substrate having flexibility, which are arranged to face each other with a void space therebetween,
a first light-transmitting electrode layer formed on a inner side of the first light-transmitting substrate, a second light-transmitting electrode layer formed on an inner side of the second light-transmitting substrate, and when an external surface of the second light-transmitting substrate is pressed by an indicator, the first light-transmitting electrode layer and the second light-transmitting electrode layer are partially and electrically connected to each other in a pressed portion so as to output coordinate information of the pressed portion, wherein the external surface of the first light-transmitting substrate is different in thickness at a central portion and at a peripheral portion, and wherein the thickness of the central portion of the first light-transmitting substrate is smaller than the thickness of the peripheral portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a first light-transmitting substrate, and a second light-transmitting substrate having flexibility, which are arranged to face each other with a void space therebetween,
Specification