发明名称 |
Ferroelectric liquid crystal display with liquid crystal mixtures having high spontaneous polarization and short helical pitch and alignment layers containing lipophilic or amphiphilic compounds |
摘要 |
Ferroelectric liquid crystal display comprising outer substrates, electrodes, polarizer(s), ferroelectric liquid crystalline material and alignment layer(s), in which the ferroelectric liquid crystalline material has a spontaneous polarization of Ps>20 nC.cm-2 and a natural helical pitch of less than half of the cell thickness, and the alignment layer comprises at least one lipophilizing, lipophilic and/or amphiphilic compound. The liquid crystal display according to the invention exhibits a short switching time and a significantly reduced surface memory effect, and thus achieves an improved display contrast.
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申请公布号 |
US5373380(A) |
申请公布日期 |
1994.12.13 |
申请号 |
US19930047815 |
申请日期 |
1993.04.15 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
HARADA, TAKAMASA;ESCHER, CLAUS;ILLIAN, GERD;KALTBEITZEL, ANKE;ROESCH, NORBERT |
分类号 |
C09K19/02;G02F1/1337;G02F1/141;(IPC1-7):G02F1/133 |
主分类号 |
C09K19/02 |
代理机构 |
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