发明名称 |
SOLID STATE TIMEPIECE WITH LIQUID CRYSTAL DISPLAY |
摘要 |
Disclosed is a solid state wristwatch having an improved liquid crystal time display. Solid state time-keeping components are continuously energized from a low voltage battery while the display is energized only on demand from a separate high voltage battery. The direction of current flow through the liquid crystals is reversed during display to improve display life. A highly polished mirror surface is provided on the outside of the back plate of the thin glass sandwich where it is not in contact with the liquid crystal material.
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申请公布号 |
US3701249(A) |
申请公布日期 |
1972.10.31 |
申请号 |
USD3701249 |
申请日期 |
1971.03.12 |
申请人 |
HAMILTON WATCH CO. |
发明人 |
JOHN M. BERGEY;ERIC L. BLOUCH;RICHARD S. WALTON |
分类号 |
G04G9/00;G04G9/12;(IPC1-7):G04B19/30 |
主分类号 |
G04G9/00 |
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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