Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – Alignment layer of specified composition
Reexamination Certificate
2006-09-12
2006-09-12
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
Alignment layer of specified composition
C428S001250, C428S001260, C428S473500, C528S170000, C528S188000, C528S353000, C349S135000, C522S170000
Reexamination Certificate
active
07105211
ABSTRACT:
A liquid crystal alignment treating agent for optical alignment treatment, whereby it is possible to obtain a liquid crystal alignment film which presents a high and stable tilt angle of liquid crystal and which is excellent in an accumulated charge property by a DC voltage, is provided.A liquid crystal alignment treating agent which comprises, as resin components, a polyimide precursor or a polyimide obtained by cyclodehydration of the polyimide precursor, and an acryl polymer having repeating units represented by the formula (II):(wherein R3represents a hydrogen atom, a methyl group or a halogen atom, R4represents an alkyl group having at least 8 carbon atoms, and k represents a positive represented by the formula (III):(wherein R3and R5each independently represents a hydrogen atom, a methyl group or a halogen atom, R4represents an alkyl group having at least 8 carbon atoms, R6represents an organic group having an epoxy group, and k and j each represents a positive integer), wherein the acryl polymer having the repeating units represented by the formula (II) or the formula (III) is from 0.01 to 30 wt % based on the whole resin components.
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Endo Hideyuki
Imamura Tetsuya
Nawata Hideyuki
Hon Sow-Fun
Nissan Chemical Industries Ltd.
Pyon Harold
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