公开(公告)号：US20210074228A1

公开(公告)日：2021-03-11

申请号：US16581780

申请日：2019-09-25

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hongchun CONG ,  Jian-Hua LIANG ,  Xiao ZHANG

IPC: G09G3/36 ,  G09G3/34 ,  G02F1/1335 ,  G02F1/1347

Abstract: A dual cell LCD apparatus that includes a LCD display panel, a backlight circuit and a dual cell LCD control circuit. The LCD display panel includes a back cell and a front cell. The dual cell LCD control circuit includes a back cell control circuit, a backlight control circuit and a front cell control circuit. The back cell control circuit retrieves a plurality of luminance and color parameters of a display frame data to further generate back cell control parameters to control the back cell layer. The backlight control circuit performs a statistics analysis of the display frame data according to the luminance and color parameters to further generate a plurality of duty parameters to control the backlight circuit. The front cell control circuit performs an intensity compensation on the front cell according to the luminance and color parameters, the duty parameters and the display frame data.