Liquid crystal display device with acrylic polymer spacers and m

Details Liquid crystal display device with acrylic polymer spacers and m Liquid crystal display device with acrylic polymer spacers and m

1994-03-15

1996-03-12

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

G02F 11339

Patent

active

054991285

ABSTRACT:
The columnar spacer included in a liquid crystal display device is formed of a photosensitive resin selected from the group consisting of acrylic polymers and acrylic copolymers, said photosensitive resin having at least one atomic group selected from the group consisting of an epoxy group, an imide bond, an ether bond, an ester bond and an urethane bond. The particular photosensitive resin used for forming the columnar spacers permits the surface of a polyimide alignment film to be prevented from being swollen by or dissolved in a developing solution in the subsequent step so as to maintain the crystal orientation satisfactorily.

REFERENCES:
patent: 4720173 (1988-01-01), Okada et al.
patent: 4844597 (1989-07-01), Katagiri et al.
patent: 4924243 (1990-05-01), Sato et al.
patent: 4983023 (1991-01-01), Nakagawa et al.
patent: 5361152 (1994-11-01), Harada et al.

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