公开(公告)号：US20200226965A1

公开(公告)日：2020-07-16

申请号：US16482107

申请日：2018-09-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanhui XI ,  Bin DAI ,  Xiaomang ZHANG ,  Yan SUN ,  Kuanjun PENG ,  Haijun NIU ,  Xiaolong LI ,  Donghui WANG

IPC: G09G3/20

Abstract: Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3≤M, 3≤N, M is different from N, and M and N are positive integers.

公开(公告)号：US20200143732A1

公开(公告)日：2020-05-07

申请号：US16473543

申请日：2018-11-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yanhui XI ,  Bin DAI ,  Xiaomang ZHANG ,  Yan SUN ,  Haijun NIU ,  Kuanjun PENG ,  Yuxin BI ,  Donghui WANG

IPC: G09G3/20

Abstract: The present application provides a multiple primary color conversion method, including: determining color triangles according to color coordinates of a target color; computing grayscale components of l primary colors corresponding to the target color in the color triangles; in step S130, obtaining initial grayscales of l primary colors; in step S140, judging whether there is an overflow grayscale; if yes, then performing step S160, if no, then performing step S150; in step S150, adjusting initial brightness components corresponding to grayscale components of the same primary color as the overflow grayscale, computing grayscale components of l primary colors in color triangles including the primary color of the overflow grayscale, and performing steps S130 and S140; in step S160, determining the initial grayscales of l primary colors as grayscales of l primary colors of the target color.