Matrix display device
US5095304A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an active matrix addressed electro-optical, e.g. LC, display device of the kind comprising a row and column array of picture elements (12) each associated with a switching transistor (11) to which switching and data signals are supplied via switching and data signal conductors (14, 15) the transistors associated with alternate rows of picture elements are of opposite conductivity type (n,p) and the transistors of separate adjacent pairs of rows share a common switching signal conductor (14) to which switching signals for both conductivity types of transistors are applied, thereby reducing the number of such conductors. The transistors can be polysilicon or a-Si TFTs, or MOSFETs. CMOS technology may be used to produce also an integrated driver circuit (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.