Liquid-crystalline polymer
Abstract
Abstract A liquid-crystalline polymer comprising repeating units of the following general formula <IMAGE> wherein: R1 is -H, -CH3 or -C2H5, 1 is an integer having a value of 1 to 20, k is an integer having a value of 1 to 30, A is -O- (oxygen) or -COO-, m is 0 or 1, and R2 is <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> wherein Y is -COO- or -OCO-, and R3 is -COOR4, -OCOR4, -OR4, -COR4 or -R4 where R4 is <IMAGE> R5 being -CH3, -CN or a halogen radical, n and p being independently an integer having a value of 0 to 10 with the proviso that if R5 is -CH3, p is not 0, X being a halogen radical, q being 0 or 1, and C* being an asymmetric carbon atom. The liquid-crystalline polymer not only exhibits liquid-crystalline properties and transfers to ferroelectric chiral smectic C phase at temperatures of a wide range including the vicinity of room temperature but also has a high speed in responding to external factors enabling to display motion pictures, and can be advantageously used as display elements of large size screens and curved screens.
Inventors
- 👤 Kazuharu Morita
- 👤 Shunji Uchida
- 👤 Satoshi Hachiya
Bibliographic Details
Claims Analysis
Total Claims: 15References Cited (Backward Citations)
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