The photosensitive PI film composing of DOCDNDAP-Chalcone [5-2,5-dioxotetrahydro~ryl]-3-methyl-3-cyclohexene-l ,Zdicarboxylic anhydride/l,4-diaminophenoV4-n-propyl-4-(3-propylene hydroxide) chalcone] induces orientation of liquid crystal alignment perpendicular to the polarization direction. The pretilt angle of liquid crystal was about 1". It will be applied to the ferroelectric liquid crystal display.
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