| 摘要 |
The present invention relates to a photoalignable material comprising a photoactive stilbazolium-containing polymer of formula I: wherein, M<SUB>a</SUB>, M<SUB>b</SUB>, M<SUB>c </SUB>are monomer units making up the polymer; x, y, z, are mole fractions of the monomer units M<SUB>a</SUB>, M<SUB>b</SUB>, M<SUB>c</SUB>, wherein in each case 0<x<=1; 0<=y<1, 0<=Z<1; S<SUB>a </SUB>and S<SUB>b </SUB>are spacer units; Z<SUB>a </SUB>is a stilbazolium unit which can undergo photochemical isomerization/dimerization reactions; Z<SUB>b </SUB>is a stilbazole unit, and n varies from 4 to 10,000. The present invention also relates to a display using a layer of the photoaligned material and methods for aligning the orientation layer as well as orienting a liquid crystal layer applied to the photoaligned orientation layer.
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