Patent ID: 11908370
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of operating a display apparatus, the display apparatus comprising a display panel and driver set electrically connected to each other, the method comprising:
calculating a first color reference luminance ratio, which is a ratio of a first color luminance value to a total color luminance value for a reference grayscale value;
calculating a second color reference luminance ratio, which is a ratio of a second color luminance value to the total color luminance value for the reference grayscale value;
calculating a third color reference luminance ratio, which is a ratio of a third color luminance value to the total color luminance value for the reference grayscale value;
calculating first color target luminance ratios, which are ratios of first color luminance values to total color luminance values for adjustment target grayscale values;
calculating second color target luminance ratios, which are ratios of second color luminance values to the total color luminance values for the adjustment target grayscale values;
calculating third color target luminance ratios, which are ratios of third color luminance values to the total color luminance values for the adjustment target grayscale values;
generating first color adjustment values based on the first color reference luminance ratio and the first color target luminance ratios;
generating second color adjustment values based on the second color reference luminance ratio and the second color target luminance ratios;
generating third color adjustment values based on the third color reference luminance ratio and the third color target luminance ratios;
performing a gamma conversion of a first color using the first color adjustment values for the adjustment target grayscale values;
performing a gamma conversion of a second color using the second color adjustment values for the adjustment target grayscale values;
performing a gamma conversion of a third color using the third color adjustment values for the adjustment target grayscale values;
generating first data voltages using results of the gamma conversion of the first color, the gamma conversion of the second color, and the gamma conversion of the third color; and
emitting or transmitting first light using the display panel and the first data voltages to display a first image.