| 发明名称 |
LIQUID CRYSTAL WITH GREAT NEGATIVE DIELECTRIC ANISOTROPY AND ELECTROOPTICAL DISPLAY DEVICE CONTAINING SUCH A LIQUID CRYSTAL |
| 摘要 |
Novel mesomorphic substances, constituting, in certain temperature ranges, nematic or smectic liquid crystals which are compounds of the formula: <IMAGE> wherein R1 is an alkoxy group containing 1 to 10 atoms of carbon; R2 is an alkyl group containing 1 to 10 atoms of carbon; X is Br or CN. |
| 申请公布号 |
DE2960722(D1) |
申请公布日期 |
1981.11.26 |
| 申请号 |
DE19792960722 |
申请日期 |
1979.04.25 |
| 申请人 |
THOMSON-CSF |
发明人 |
DUBOIS, JEAN CLAUDE;NGUYEN HUU, TINH;ZANN, ANNIE |
| 分类号 |
C07C69/92;C07C67/00;C07C253/00;C07C255/57;C09K19/20;G02F1/13;(IPC1-7):C09K3/34;G02F1/03 |
主分类号 |
C07C69/92 |
| 代理机构 |
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代理人 |
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