发明名称 |
Liquid crystal memory device including an organic ferroelectric layer |
摘要 |
An improved liquid crystal device such as an optical disc memory or a display device with a ferroelectric liquid crystal (FLC) is shown. As FLC a chiral smectic liquid crystal is employed to exhibit a hysteresis between a pair of substrates which have easy polarization axes normal to each other. Information to be recorded are written on the disc in terms of a binary system by use of the hysteresis. A ferroelectric layer contiguous to the liquid crystal makes the nonvolatility of the memory sure. |
申请公布号 |
US5267224(A) |
申请公布日期 |
1993.11.30 |
申请号 |
US19910717191 |
申请日期 |
1991.06.18 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
YAMAZAKI, SHUNPEI |
分类号 |
G02F1/135;G02F1/141;G11B7/24;G11B7/25;(IPC1-7):G11B7/13;G11B9/02;G11B13/04 |
主分类号 |
G02F1/135 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|