Liquid crystal display element and manufacturing method thereof
First Claim
1. A liquid crystal display element comprising:
- a spacer located between a pair of substrates for maintaining a gap between the substrates;
a liquid crystal layer sealed between the substrates, said layer comprising liquid crystal material and a polymer, wherein said spacer comprises elastically deformable material whose elasticity is such that a sum of a force causing elastic deformation of said spacer and a counterveiling internal pressure of said liquid crystal layer confined by maid spacer and substrates is constantly approximately equal to atmospheric pressure throughout changes in temperature within a range of storage temperatures of the liquid crystal display element, said spacer is located directly on at least one of said pair of substrates, and said spacer structure is at least partially hollow.
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Abstract
A liquid crystal display element of the present invention comprises a pair of substrates 1, 2 with transparent electrodes 5, 6, a spacer 3 for maintaining a certain gap between the substrates, which is disposed between the pair of substrates 1, 2, and a liquid crystal layer 4 sealed between the substrates 1, 2; in which the spacer 3 has an elasticity, the sum of a repulsion force of the spacer 3 and an internal pressure of the above-mentioned liquid crystal layer 4 is constantly approximately 1 atm with a change in temperature within a range of usable temperatures of the liquid crystal display element, and each of the spacer 3 and the internal pressure of the liquid crystal layer 4 varies linearly. According to such a constitution, it is possible to improve a temperature characteristic of the grade of display resulting from a firm column-shaped spacer with little elasticity, and to realize a liquid crystal display element with little deterioration in the grade of display due to a change in temperature.
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Citations
1 Claim
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1. A liquid crystal display element comprising:
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a spacer located between a pair of substrates for maintaining a gap between the substrates;
a liquid crystal layer sealed between the substrates, said layer comprising liquid crystal material and a polymer, wherein said spacer comprises elastically deformable material whose elasticity is such that a sum of a force causing elastic deformation of said spacer and a counterveiling internal pressure of said liquid crystal layer confined by maid spacer and substrates is constantly approximately equal to atmospheric pressure throughout changes in temperature within a range of storage temperatures of the liquid crystal display element, said spacer is located directly on at least one of said pair of substrates, and said spacer structure is at least partially hollow.
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Specification
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- Resources
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Current AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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Original AssigneeMatsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
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InventorsNakao, Kenji, Nishiyama, Seiji, Uemura, Tsuyoshi
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Primary Examiner(s)Parker, Kenneth
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Application NumberUS09/562,602Time in Patent Office988 DaysField of Search349/155, 349/156, 349/84US Class Current349/156CPC Class CodesG02F 1/1334 based on polymer dispersed ...G02F 1/13394 spacers regularly patterned...
