Liquid crystal device with shorting ring and transistors for electrostatic discharge protection
US5373377A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 5, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Feb 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133512
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active matrix type liquid crystal display device with a short-circuiting wire for mutually short-circuiting address wires and data wires through the medium of resistors made of a thin-film transistor is formed along the periphery of a display region on an insulating substrate. The short-circuiting wire is electrically connected inside a region in which the resistors made of a thin-film transistor are formed. In one embodiment, the transistors are surrounded by a portion of the shod circuiting wire. In another embodiment, they are partially surrounded by the wire with a gate electrode which is not protruding out. In another embodiment they are formed with two source and drain regions, one which has a lower breakdown voltage than the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.