Liquid crystal display having substrates with alignment layers
First Claim
1. A liquid crystal display comprising:
- two substrates opposite to each other and spaced apart a predetermined distance, each of the substrates having an alignment layer;
a liquid crystal layer between the two substrates, and having a plurality of liquid crystal molecules; and
a pair of electrodes formed on one of the substrates;
wherein each of the alignment layers has a plurality of parallel grooves on its surface for orienting the liquid crystal molecules, therefore, when no voltage is provided, the overall arrangement of the liquid crystal molecules comprises a 90°
twist;
when a voltage is applied to the electrodes, an electrical field parallel to the substrate is formed, which rotates and orients the liquid crystal molecules, and makes the arrangement of the liquid crystal molecules homogeneous.
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Accused Products
Abstract
A liquid crystal display has two substrates (100, 200) opposite to each other and spaced apart a predetermined distance, a liquid crystal layer (300) between the two substrates and having a plurality of liquid crystal molecules (310), and a pair of electrodes (121, 122) formed on one of the substrates to provide an electrical field parallel to the substrates. Each substrate has an alignment layer formed thereon. Each alignment layer has a plurality of parallel grooves (190, 240) on its surface to orient the liquid crystal molecules. The grooves of one alignment layer are orthogonal to the grooves of the other alignment layer. When no voltage is provided, the overall arrangement of the liquid crystal molecules comprises a 90° twist. When a voltage is applied to the electrodes, an electrical field parallel to the substrate is formed, which rotates the liquid crystal molecules and makes the arrangement of the liquid crystal molecules homogeneous.
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Citations
16 Claims
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1. A liquid crystal display comprising:
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two substrates opposite to each other and spaced apart a predetermined distance, each of the substrates having an alignment layer;
a liquid crystal layer between the two substrates, and having a plurality of liquid crystal molecules; and
a pair of electrodes formed on one of the substrates;
wherein each of the alignment layers has a plurality of parallel grooves on its surface for orienting the liquid crystal molecules, therefore, when no voltage is provided, the overall arrangement of the liquid crystal molecules comprises a 90°
twist;
when a voltage is applied to the electrodes, an electrical field parallel to the substrate is formed, which rotates and orients the liquid crystal molecules, and makes the arrangement of the liquid crystal molecules homogeneous. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for manufacturing an alignment film on a substrate of an LCD comprises the following steps:
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coating a layer of polyimide on a substrate;
mechanically processing a plurality of V-shaped grooves on the polyimide layer. - View Dependent Claims (10, 11)
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12. A liquid crystal display comprising:
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at least one substrate;
a pair of spaced pixel and common electrodes formed in said substrate and in a parallel relation with each other, said pair of electrodes defining an electrical field along a direction;
an alignment layer formed on said substrate;
a plurality of liquid crystal molecules disposed on said alignment layer and affected by said alignment layer to be commonly arranged along said direction before said electrical field is applied thereto. - View Dependent Claims (13, 14, 15, 16)
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Specification