公开(公告)号：US20220189420A1

公开(公告)日：2022-06-16

申请号：US17529912

申请日：2021-11-18

Applicant: Sharp Display Technology Corporation

Inventor： Masamitsu KOBAYASHI ,  Takafumi MIURA ,  Masafumi YASHIKI

IPC: G09G3/34 ,  G09G3/36

Abstract: An image display apparatus includes a display panel including multiple pixels, a backlight including multiple white-light light sources, a panel driving circuit, a backlight driving circuit, and a determination circuit determining image data. The white-light light sources have characteristics that cause afterglow of a particular color to persist longer than afterglow of another color. The backlight driving circuit segments the backlight into multiple areas and drives the backlight such that a time duration of performing control to cause the areas to sequentially be in a light-emission state at mutually different timings alternates with a time duration of performing control to cause all the areas to be in a non-light-emission state. The determination circuit determines a determination value indicating a degree of inclusion at which achromatic data is included in the image data and determines a light-emission start timing of each of the areas in accordance with the determination value.