Display device, and method of determining a power supply voltage based on gray level and voltage drop
US11217180B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes: a display panel including a plurality of pixels; a power supply configured to provide a power supply voltage to the display panel; and a controller configured to control the power supply, the controller including: a motion calculation block configured to calculate a motion amount of image data based on the image data in a previous frame and the image data in a current frame, and to determine a motion gain based on the motion amount of the image data; a maximum gray determination block configured to determine a maximum gray level of the image data in the current frame; a voltage drop calculation block configured to calculate a voltage drop amount in the display panel; and a power supply voltage determination block configured to determine an initial voltage level of the power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.