公开(公告)号：US20250131872A1

公开(公告)日：2025-04-24

申请号：US18919728

申请日：2024-10-18

Applicant: Lextar Electronics Corporation

Inventor： Jui-Yi WU ,  Cheng-Yen TSAI ,  Kai-Hsiang SHIH ,  Chih-Hao LIN ,  Chien-Nan YEH

IPC: G09G3/32

Abstract: In order to maintain the white balance ratio of the mixed white light, a pixel unit is provided, which is composed of four sub-pixels of red, green, blue, and another green colors, and these sub-pixels are composed of a red LED element, a first green LED element, a blue LED element and a second green LED element. A control element is used to control the four sub-pixels of red, first green, blue and second green correspondingly by outputting control signals through the control channels. Base on the adjustment of the current, the brightness ratio of the above three colors is still maintained at the ratio of 3:6:1 of the white balance, and the ratio of the white balance of the white light after being mixed is also maintained.