Invention Grant
- Patent Title: Changing LCD display timing controller settings for different graphics processor requirements
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Application No.: US17589496Application Date: 2022-01-31
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Publication No.: US11922855B2Publication Date: 2024-03-05
- Inventor: Chun-Yi Chang , Yi-Fan Wang , Meng-Feng Hung , No-Hua Chuang , Yu Sheng Chang
- Applicant: Dell Products L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Larson Newman, LLP
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/36

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.
Public/Granted literature
- US20230245613A1 CHANGING LCD DISPLAY TIMING CONTROLLER SETTINGS FOR DIFFERENT GRAPHICS PROCESSOR REQUIREMENTS Public/Granted day:2023-08-03
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