Composition for forming liquid crystal orientation film, apparatus for forming liquid orientation film, and liquid crystal display
AssigneeSeiko Epson Corporation
InventorsKei Hiruma, Kohei Ishida
Life of this patent
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Abstract
A composition for forming a liquid crystal orientation film using a liquid ejection apparatus comprises (a) a mixed solvent including γ-butylolactone and at least one type of solvent selected from aprotic polar solvents other than γ-butylolactone and phenol based solvents, where the at least one type of solvent is no less than 5 weight % relative to the mixed solvent; and (b) a material for forming a liquid crystal orientation film.
Claims11
A composition for forming a liquid crystal orientation film using a liquid ejection apparatus comprising:
- (a) a mixed solvent including γ-butylolactone and at least one type of solvent selected from aprotic polar solvents other than γ-butylolactone and phenol based solvents, where the at least one type of solvent is no less than 5 weight % relative to the mixed solvent;
- and
- (b) a material for forming a liquid crystal orientation film.
An apparatus for forming a crystal liquid orientation film on substrate comprising:
- an ejection head having a plurality of nozzles;
- and
- a composition for forming a crystal liquid orientation film that is ejected from the plurality of nozzles to the substrate as a droplet, wherein the composition includes:
- (a) a mixed solvent including γ-butylolactone and at least one type of solvent selected from aprotic polar solvents other than γ-butylolactone and phenol based solvents, where the at least one type of solvent is no less than 5 weight % relative to the mixed solvent;
- and
- (b) a material for forming a liquid crystal orientation film.
A liquid crystal display comprising:
- a substrate;
- and
- a liquid crystal orientation film placed on the substrate, wherein the film is formed of a composition including:
- (a) a mixed solvent including γ-butylolactone and at least one type of solvent selected from aprotic polar solvents other than γ-butylolactone and phenol based solvents, where the at least one type of solvent is no less than 5 weight % relative to the mixed solvent;
- and
- (b) a material for forming a liquid crystal orientation film.
A liquid crystal display comprising:
- an upper substrate having a liquid crystal orientation film placed thereon;
- a lower substrate having a liquid crystal orientation film placed thereon;
- a sealing material for sealing the upper and lower substrates;
- and
- liquid crystal placed in a portion surrounded by the sealing material;
- wherein the liquid crystal orientation film placed at least one of the upper substrate and the lower substrate is formed of a composition including:
- (a) a mixed solvent including γ-butylolactone and at least one type of solvent selected from aprotic polar solvents other than γ-butylolactone and phenol based solvents, where the at least one type of solvent is no less than 5 weight % relative to the mixed solvent;
- and
- (b) a material for forming a liquid crystal orientation film.
Dependencies are inferred from the claim text.