Active matrix display apparatus with drain electrode extensions
US5076666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13624
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active matrix display apparatus comprising a pair of substrates, at least one of which is translucent, a display medium charged between the substrates and modulated of its optical characteristics in response to applied voltage, picture element electrodes disposed in a matrix at the inner surface of either one of the pair of substrates, switching elements electrically connected to the picture element electrodes respectively, and spare switching elements disposed close to the picture element electrodes in a non-conductive state respectively, the extension end of the spare switching element and one end of the picture element electrode are disposed on a metal piece so as to sandwich an insulating layer therebetween, whereby a picture element defect caused by a malfunction of switching elements can be readily corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.