Perimeter seal reinforcement holes for plastic LCDs
First Claim
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1. A method for assembling a liquid crystal device, comprising the steps of:
- providing first and second flexible substrates, each said substrate being provided with a conductor layer, and an alignment layer over said conductor layer, on a first surface thereof;
providing reinforcement holes near the perimeter of at least one said substrate;
providing glue around the perimeter of said first face of at least one of said substrates; and
gluing said first and second substrates together, so that said glue forms a perimeter seal to define an enclosed cavity between said first substrate and said second substrate, and introducing glue into said reinforcement holes.
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Abstract
To increase the perimeter seal strength of plastic LCDs, reinforcement holes are formed in the plastic substrate at the maximum stress points. These holes, which are not in contact with any active area of the device, are filled with glue, so that each pair of holes in the upper and lower substrates forms a tensile connection which directly links the two substrates together at the maximum stress points.
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Citations
11 Claims
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1. A method for assembling a liquid crystal device, comprising the steps of:
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providing first and second flexible substrates, each said substrate being provided with a conductor layer, and an alignment layer over said conductor layer, on a first surface thereof; providing reinforcement holes near the perimeter of at least one said substrate; providing glue around the perimeter of said first face of at least one of said substrates; and gluing said first and second substrates together, so that said glue forms a perimeter seal to define an enclosed cavity between said first substrate and said second substrate, and introducing glue into said reinforcement holes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A liquid crystal device, comprising:
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a first substrate comprising a flexible material, said first substrate having a conductor layer, and an alignment layer on said conductor layer, on at least a central portion of a first surface of said substrate; a second substrate, comprising a flexible material, said first substrate having a conductor layer, and an alignment layer on said conductor layer, on at least a central portion of a first surface of said substrate; said first and second substrates being joined along the respective primeters thereof by a glue seal, said glue seal extending along substantially the entire perimeter of said first and second substrates, said first and second substrates being joined so that said first surfaces of both said substrates mutually face together and define a cavity therebetween; a liquid crystal material filling said cavity; at least one said substrate containing reinforcement holes near the perimeter of said first face thereof, said holes being at least partially filled with hardened glue. - View Dependent Claims (9, 10, 11)
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Specification