OLED drive system raising frame contrast and drive method
US9881553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Apr 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An OLED drive system raising a frame contrast and a drive method are disclosed. The OLED display panel is equally divided into a plurality of display divisions along a vertical direction. The brightness calculation module is employed to calculate average pixel brightnesses corresponding to the respective display divisions in the OLED display panel. On one hand, the power management module is employed to supply different reference voltages for the respective display divisions correspondingly according to the average pixel brightnesses of the respective display divisions in the OLED display panel, and respectively insert the reference voltages of the respective display divisions into reference voltage lines corresponding to the pixels of middle rows in the display divisions to make the reference voltages of the respective display divisions be different for raising the frame contrast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.