Active matrix display device having spare switching elements connectable to divisional subpixel electrodes
US5164851A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Jan 31, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13624
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An active matrix device has pixel electrodes (40), each of which is divided into a plurality of divisional pixel electrodes (41, 42). Each divisional pixel electrode (41, 42) has a corresponding switching element (31, 32). A junction bridges adjacent ones of the divisional pixel electrodes (41, 42), and at least one spare switching element (34) is disposed in proximity to the junction. The junction has a pair of metal pieces (44, 45) electrically connected to the respective pixel electrodes (41, 42), an output terminal (74) of the spare switching element (34), and a joint metal layer (46) on which both of the metal pieces (44, 45) and the output terminal (74) of the spare switching element (34) are superposed with an insulating film (54) placed therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.