Patent ID: 11869395
Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A color calibration display method for a color calibration display apparatus of claim 1, wherein the color calibration display method comprises:
receiving a target color temperature for expressing a specific color of a projected image from the user;
obtaining a color temperature for each color constituting the target color temperature using a color coordinate system;
obtaining color temperature coordinates for each color using the color coordinate system;
measuring illuminance for each color according to ambient external light using the illuminance sensor;
obtaining color space coordinates corresponding to the color coordinate system from the illuminance for each color using a color matching function;
comparing the color temperature coordinates and the color space coordinates for each color to calculate a color calibration value; and
reflecting the color calibration value in the illuminance for each color to calibrate a color temperature disproportionately expressed due to external light so as to be uniformly expressed.