Liquid crystal cell and its manufacturing method

Details Liquid crystal cell and its manufacturing method Liquid crystal cell and its manufacturing method

1998-03-30

1999-01-19

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

G02R 11339

Patent

active

058619321

ABSTRACT:
A pair of electrode panels are supported by plural spacer walls made of photo-resist resin to form a cell gap between electrode panels. The cell gap is filled with liquid crystal, preferably, antiferroelectric liquid crystal. The spacer walls are formed on an orientation layer formed on either panel. A thin layer is also formed on the orientation layer together with formation of the spacer walls as a residual layer. The residual layer has to be sufficiently thin not to disturb orientation of the liquid crystal and to attain a sufficiently high display contrast. The thickness of the residual layer is indirectly detected by an X-ray electron spectroscopy for chemical analysis (ESCA), and the residual layer is made sufficiently thin by setting a temperature of a preliminary baking process, which is carried out before formation of the spacer walls, in a proper range.

REFERENCES:
patent: 4720173 (1988-01-01), Okada et al.
patent: 5546208 (1996-08-01), Shimizu et al.
patent: 5559621 (1996-09-01), Minato et al.
patent: 5627665 (1997-05-01), Yamada et al.

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