Drive circuit, display apparatus, and method for adjusting screen refresh rate
US7952543B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2007 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus and a drive circuit for adjusting a screen refresh rate of the display apparatus and a method thereof are disclosed. The display apparatus comprises an OLED diode display array and a drive circuit. The drive circuit comprises a detection unit, a clock generating unit, and a timing control unit. The detection unit determines whether a plurality of frames displayed by the OLED diode display array are configured as a dynamic frame. The detection unit generates a first control signal when the displayed frames are not configured as a dynamic frame, and the detection unit generates a second control signal when the displayed frames are configured as a dynamic frame. The clock generating unit generates a clock signal, the frequency of which is a first frequency in response to the first signal, or a second frequency in response to the second signal. The first frequency is greater than the second frequency. The timing control unit sets the screen refresh rate of the display apparatus in response to the frequency of the clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.