Production process of liquid crystal display panel, seal material for liquid crystal cell and liquid crystal display

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United States of America Patent

PATENT NO 5898041
SERIAL NO

08608109

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Abstract

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This invention relates to a liquid crystal display apparatus formed by sealing a liquid crystal between two substrates having electrodes and an alignment film with a seal material, the production process comprising the steps of attaching two substrates in a vacuum, compressing under atmospheric pressure to provide a uniform cell gap, a temporary hardening process of the seal material by ultraviolet ray irradiation and a main hardening process of the seal material by heating, wherein a radically polymerizable curing resin is used in the liquid crystal seal material. The method provides a liquid crystal display panel having a uniform cell gap, without dislocation of the alighnment between substrates, or discharge of uncured component of a seal material to the liquid crystal, capable of having a seal material firmly attached to the substrates even at panel corner portions, and having an excellent straightness and moisture resistance of the seal material.

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Patent Owner(s)

Patent OwnerAddress
JAPAN DISPLAY CENTRAL INC1-9-2 HATARA-CHO FUKAYA-SHI SAITAMA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsukawa, Hideki Osaka, JP 9 687
Yamada, Satoshi Osaka, JP 285 3712

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