Pixel circuit for active matrix display apparatus and the driving method thereof
US9343026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Sep 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0251
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is the pixel circuit for active matrix display apparatus and the driving method thereof, which is controlled by digital signal. The pre-charge pixel voltage is controlled and discharged by controlling the resistor and transistors, so that the desired grey scale is generated. The pixel circuit includes: a first switch, a second switch, a third switch, an energy storage device and resistor. By controlling the third switch, the first end of the energy storage device is charged to the voltage of the second source. The first switch and the second switch are controlled to switch on, so that the first end of the energy storage device discharging to the first source. The second switch switches off when the first end of the energy storage device reaches the desired pixel voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.