Patent ID: 11967297
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A color modulation method for a display, the color modulation method comprising:
obtaining a group of original RGB data of a pixel of an image;
calling a display look-up-table (LUT) to determine whether a group of RGB mapped data corresponding to the group of original RGB data is present in the display LUT; wherein the display LUT includes a plurality of groups of selected RGB data and a group of RGB mapped data corresponding to each group of selected RGB data; the groups of selected RGB data are some groups of original RGB data selected from groups of original RGB data corresponding to the display within value ranges of the groups of original RGB data corresponding to the display;
if the group of RGB mapped data corresponding to the group of original RGB data is present in the display LUT, performing color modulation on the image using the group of RGB mapped data corresponding to the group of original RGB data; and
if no group of RGB mapped data corresponding to the group of original RGB data is present in the display LUT, calculating the group of RGB mapped data corresponding to the group of original RGB data using the group of original RGB data, the plurality of groups of selected RGB data and the group of RGB mapped data corresponding to each group of selected RGB data in combination with a predetermined interpolation algorithm, and performing the color modulation on the image using the group of RGB mapped data obtained through calculation;
the color modulation method further comprising:
determining value ranges Ns corresponding to a R value, a G value and a B value included in the group of original RGB data according to a data size of a signal source of the display;
taking M R values from a value range N corresponding to the R value as selected R values according to a first value interval;
taking O G values from a value range N corresponding to the G value as selected G values according to a second value interval;
taking P B values from a value range N corresponding to the B value as selected B values according to a third value interval;
obtaining M×O×P groups of selected RGB data according to the M selected R values, O selected G values and P selected B values;
calculating the group of RGB mapped data corresponding to each group of selected RGB data; and
establishing the display LUT according to the M×O×P groups of selected RGB data and the group of RGB mapped data corresponding to each group of selected RGB data.