Title: Liquid crystal directional membrane and liquid crystal displaying componnet
Application Number: 00131093 Application Date: 2000.12.09
Publication Number: 1306222 Publication Date: 2001.08.01
Approval Pub. Date: 2005.07.20 Granted Pub. Date: 2005.07.20
International Classifi-cation: G02F1/1337;C08G73/10
Applicant(s) Name: JSR Corp Address:
Inventor(s) Name: Tokusa Hiroaki;Tsuchiya Gen;Ose Masaki
Attorney & Agent: wei jinxi
Abstract:
    A liquid crystal alignment film formed from a polyamic acid and polyimide is provided to exhibit good alignment characteristics, and to have a high voltage holding rate, and for a long time appliying to voltage, does not produce contrast deviation and display defect. The liquid crystal alignment film consists of (a) a polymer having imide coupling units or a polymer having both of amic acid coupling units and imide coupling units, wherein the percentage of the imide coupling units to the total coupling units of the imide coupling units and amic acid coupling units in the polymer ranging is 30 to 100%, (b) the polar term in the surface tension of the liquid crystal alignment film is more than 10 dyn/cm.
Time: 7
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