Flat display unit
US6437775B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1999 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Sep 9, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0209
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flat display unit has a display area including scanning lines, signal lines, switching elements arranged in the vicinity of intersections of the scanning lines and the signal lines, and display pixels connected to corresponding switching elements. The display area is divided into small regions, each of which includes a set of signal lines and signal line driving circuits, each of which is arranged to correspond to one of the small regions, for supplying a picture signal to each set of signal lines in parallel. At least one of the signal line driving circuits has a shift register for transferring a start pulse in a predetermined direction in a predetermined timing, a sampling circuit for sampling an input picture signal to supply the picture signal to a corresponding one of the signal lines on the basis of an output of each stage of the shift register, and a control circuit for inverting the transfer direction of the start pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.