Patent ID: 11908425
Assignee: DELL PRODUCTS L.P.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An information handling system comprising:
a processor operable to execute instructions that process information to generate visual information for presentation at a display;
a memory interfaced with the processor and operable to store the instructions, the information and the visual information;
a graphics processing unit interfaced with the processor and memory and operable to further process the visual information to define pixel values for application at pixels of a display panel to present a visual image defined by the visual information, the graphics processing unit further operable to command a variable refresh rate for application of the pixel values to the pixels, the variable refresh rate including at least a first and second refresh rate;
a display interfaced with the graphics processing unit and having plural pixels that generate colors to present the visual image based upon the pixel values;
a scalar included with the display, the scalar having a multiplexor with plural inputs and a gamma adjusted output, each of the plural inputs including the pixel values, each of the plural inputs interfaced with a SRAM, the scalar applying values of a first gamma lookup table to adjust the pixel values to first adjusted pixel values with the first refresh rate and applying values of a second gamma lookup table to adjust the pixel values to second adjusted pixel values with the second refresh rate, the multiplexor having a selector to select one of the plural inputs as the gamma adjusted output, each of the plural inputs associated with a refresh rate;
a first SRAM of the scalar storing the first gamma lookup table, the scalar multiplexor selecting the SRAM having the first gamma lookup table as the input for the gamma adjusted output when the first refresh rate is commanded from the graphics processing unit; and
a second SRAM of the scalar storing the second lookup table, the scalar multiplexor selecting the SRAM having the second gamma lookup table as the input for the gamma adjusted output when the second refresh rate is communicated from the graphics processing unit.