发明名称 |
Liquid crystal material mixtures and devices incorporating such mixtures |
摘要 |
A liquid crystal material mixture for use in liquid crystal displays is arranged to have a small display threshold voltage change with temperature over a desired operating range, e.g. 0 DEG to 40 DEG C. This is obtained by a mixture of at least one liquid crystal material of type A and at least one liquid crystal material of a type B; wherein type A has the following phases with increasing temperature: crystal working phase isotropic; type B has the following phases with increasing temperature; crystal working phase smectic working phase isotropic; and the working phase is nematic or cholesteric. The resulting mixture has only one phase, the working phase, between crystalline and isotropic phases but has a lower threshold voltage change with temperature characteristic than a type A material alone.
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申请公布号 |
US4227778(A) |
申请公布日期 |
1980.10.14 |
申请号 |
US19780955751 |
申请日期 |
1978.10.30 |
申请人 |
THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND |
发明人 |
RAYNES, EDWARD P. |
分类号 |
C09K19/04;C09K19/06;C09K19/42;C09K19/44;C09K19/46;G02F1/13;(IPC1-7):G02F1/13;C09K3/34 |
主分类号 |
C09K19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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