Display device with bidirectional shift register and method of driving same
US8922473B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Feb 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a display device capable of correctly displaying an image when surplus outputs are produced within a driver, regardless of a shifting direction of a shift register within the driver, without bringing about increase in cost and increase in consumption current. A timing controller (200) is provided with a register (22) that can store data indicating the length of a horizontal back porch when a shifting direction of a shift register within a source driver (300) is in a forward direction and data indicating the length of the horizontal back porch when the shifting direction is in an inverse direction. A source-start-pulse generation unit (21) within the timing controller (200) refers to the data within the register (22) according to the shifting direction of the shift register, and generates one of a first source start pulse signal (SSP1) for the forward direction and a second source start pulse signal (SSP2) for the inverse direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.