公开(公告)号：US11942056B2

公开(公告)日：2024-03-26

申请号：US17893631

申请日：2022-08-23

Applicant: Sharp Display Technology Corporation

Inventor： Shinji Tomokawa ,  Yasutomo Nishihara ,  Yohji Inui ,  Kohichi Ohhara ,  Katsutoshi Kikuchi

IPC: G09G3/36 ,  G02F1/13357 ,  G09G3/34

CPC classification number: G09G3/3648 ,  G02F1/1336 ,  G09G3/3406 ,  G09G2320/0233 ,  G09G2360/16

Abstract: A display device includes a lighting device, a display panel, a memory, and a correction circuit. The lighting device includes a light exit area defined into light exit sections corresponding to light sources. The display panel includes a display area disposed opposite the light exit area and including pixels. The memory stores data of pixel matrix linked to the display sections. The memory stores position data of the pixels that are not disposed opposite the corresponding light exit sections and deviation data when a position error is caused between the light exit area and the display area. The correction circuit is configured to determine whether the memory stores the position data of the pixels and link new pixel matrix units to the corresponding display sections based on the deviation data if a determination result is affirmative.

公开(公告)号：US11769459B2

公开(公告)日：2023-09-26

申请号：US18078874

申请日：2022-12-09

Applicant: Sharp Display Technology Corporation

Inventor： Koki Oka ,  Kohichi Ohhara

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3655 ,  G09G2310/06 ,  G09G2320/0233

Abstract: A display device includes a control circuit. By setting an intermediate point between a start point and an end point of a lighting period as a start point of the lighting cycle, and setting an intermediate point between a start point and an end point of a lighting period of the next lighting period as an end point of the lighting cycle, the control circuit controls a backlight such that an absolute value of a difference value between a first ratio of a sum of a length of a first lighting period in the first lighting cycle and a length of the next second lighting period in the first lighting cycle to a length of the first lighting cycle and the target duty ratio is 0.1 or less.