Charge storage circuit for a pixel, and a display
US8976099B2 · kind B2 · utility
1Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Feb 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A charge storage circuit for a pixel comprises a charge storage node. First and second series-connected transistors (8,10) are provided for selectively isolating the charge storage node from a first voltage input (9,SL) for supplying a data voltage. The circuit is provided with a voltage follower circuit for replicating a voltage at the charge storage node (12) at another node in the circuit thereby to reduce the drain-source voltage across the second transistor (10). The first transistor forms part of the voltage follower circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.