Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent
1991-12-06
1993-01-12
Seidel, Richard K.
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
445 25, 427 66, 359 52, H01J 926
Patent
active
051785714
ABSTRACT:
A method for manufacturing an electro-optical device is disclosed. The first step of the method is distributing on a substrate at a thickness of 1 to 500 pm a mixture which comprises spacers having a diameter of 1 to 50 pm and plastic spherical covers having an inner diameter of 0.2 to 50 pm and containing a liquid crystal therein and coated with heat curable resin or photocurable resin or a polymerizable material on the outside surfaces thereof. Secondly, the substrate is joined to another substrate with the distributed mixture therebetween. Finally, the joined substrates are pressed against each other under an environmental pressure less than atmospheric pressure. In case of the heat curable resin, said pressing step is carried out with the substrates heated. In case of the photocurable resin, said pressing step is carried out with the distributed mixture irradiated with light. In case of the polymerizable, material, the material is polymerized during said pressing step. Liquid crystal devices having a more distinct threshold value and hence having an increased drive margin are realized.
REFERENCES:
patent: 3852092 (1974-12-01), Patterson et al.
patent: 4878741 (1989-11-01), Fergason
patent: 4902929 (1990-02-01), Toyoda et al.
patent: 5011624 (1991-04-01), Yamagishi et al.
patent: 5056898 (1991-10-01), Ma et al.
Knapp Jeffrey T.
Seidel Richard K.
Semiconductor Energy Laboratory Co,. Ltd.
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