Title:
PRODUCTION OF VISUAL ANGLE COMPENSATION PLATE FOR LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JP2853068
Kind Code:
B2
Abstract:
PURPOSE: To obtain the compensation plate which decreases the viewing angle dependency possessed by a liquid crystal display.
CONSTITUTION: Optically active polyester contg. an arom. unit, polycylic hydrocarbon ring unit and ortho-substd. arom. unit having at least 3 to 8C hydrocarbon group and/or halogen as a substituent as a constituting component, or a compsn. contg. liquid crystalline polyester contg. the hydrocarbon unit as a constituting component and the optically active compd. is treated at a temp. above the glass transition point of the polyester on the oriented film formed on a light transparent substrate and is then cooled to the temp. below the glass transition point of the polyester and a cholesteric structure is immobilized, by which the visual angle compensation plate for the liquid crystal display element is obtd. The uniform viewing angle compensation plate which drastically decreases the viewing angle dependency is provided at a low cost in this way.
Inventors:
MAZAKI HITOSHI
TOYOOKA TAKEHIRO
ITO HIROYUKI
TOYOOKA TAKEHIRO
ITO HIROYUKI
Application Number:
JP24848291A
Publication Date:
February 03, 1999
Filing Date:
September 03, 1991
Export Citation:
Assignee:
NIPPON SEKYU KK
International Classes:
G02B5/30; C09K19/38; C09K19/40; C09K19/58; G02F1/1335; G02F1/13363; (IPC1-7): G02F1/1335; G02B5/30
Domestic Patent References:
| JP387720A | ||||
| JP1282519A | ||||
| JP416919A | ||||
| JP43020A |
Attorney, Agent or Firm:
Takehiko Saito
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