Changing LCD display timing controller settings for different graphics processor requirements
US11922855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2022 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information handling system includes a host processing system and a Liquid Crystal Display device. The host processing system includes a graphics processing unit (GPU) and the LCD device includes a memory device and a DisplayPort Configuration Data (DPCD) register. The host processing system 1) determines whether the first GPU supports a Dynamic Display Shifting (DDS) mode, 2) when the GPU does not support the DDS mode, provides a first indication to the LCD device that the GPU does not support the DDS mode, and 3) when the GPU supports the DDS mode, provides a second indication to the LCD device that the GPU supports the DDS mode. The LCD device retrieves a Panel Self Refresh (PSR) setting from the memory device and stores the PSR setting to the DPCD register in response to the first indication, and retrieves a DDS setting from the memory and stores the DDS setting to the DPCD register in response to the second indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.