Production process of liquid crystal display panel, seal materia

Details Production process of liquid crystal display panel, seal materia Production process of liquid crystal display panel, seal materia

1996-02-28

1999-04-27

Berman, Susan W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 83, 522142, 522103, 522182, 522183, 349122, 349153, C08F 248, C09J16310, C09J 402

Patent

active

058980415

ABSTRACT:
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.

REFERENCES:
patent: 4297401 (1981-10-01), Chern et al.
patent: 4364168 (1982-12-01), Matsuyama et al.
patent: 4695490 (1987-09-01), McClelland et al.
patent: 5387445 (1995-02-01), Horiuchi et al.
patent: 5596023 (1997-01-01), Tsubota et al.
patent: 5596024 (1997-01-01), Horie et al.

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