"Liquid crystal device having ""dummy"" thin-film transistors as spacers"
US4842377A · kind A · utility
8Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Apr 12, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal device includes a pair of first and second opposed substrates, a ferroelectric liquid crystal filled in a space defined between both the substrates, and a thin film transistor formed on at least one of the substrates. The thin film transistor is used as a spacer between the substrates, and the spacer is bonded to the first substrate opposed to the second substrate on which the spacer is formed. In another aspect, a dummy corresponding to the thin film transistor is further provided on the substrate on which the thin film transistor is formed, wherein the dummy is used as a spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.