公开(公告)号：US20240203344A1

公开(公告)日：2024-06-20

申请号：US17909861

申请日：2020-04-21

Applicant: Sharp Kabushiki Kaisha

Inventor： Keiichi YAMAMOTO ,  Ryo YONEBAYASHI

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/045 ,  G09G2330/021

Abstract: A display device is implemented that can reduce power consumption over a known example while preventing occurrence of black floating. The voltage value of a low-level power supply voltage ELVSS provided to a pixel circuit is set to a higher value in a pause driving period than in a normal driving period. Upon writing a data voltage, an anode initialization period for initializing an anode voltage of an organic EL element is provided. In this regard, an anode initialization period in the pause driving period is made longer than an anode initialization period in the normal driving period. To implement this, for example, a write frequency of a data voltage is made lower in the pause driving period than in the normal driving period.

公开(公告)号：US20180024395A1

公开(公告)日：2018-01-25

申请号：US15550046

申请日：2016-03-03

Applicant: Sharp Kabushiki Kaisha

Inventor： Masahiro MITANI ,  Aya NAKATANI ,  Keiichi YAMAMOTO ,  Seiji MURAOKA

IPC: G02F1/1333 ,  G02F1/1345

CPC classification number: G02F1/133305 ,  G02F1/133308 ,  G02F1/133615 ,  G02F1/13452 ,  G02F1/13454 ,  G02F2001/13456 ,  G02F2201/56

Abstract: A liquid crystal display device includes a liquid crystal panel, a panel driver board, and flexible circuit boards. The liquid crystal panel has a substantially round shape and includes linear edge sections formed by linearly cutting out outer edge portions. The panel driver board is configured to supply signals related to image display to the liquid crystal panel. The flexible circuit boards include first ends and second ends. The first ends are mounted to the liquid crystal panel aligned with the linear edge sections with respect to the circumferential direction in a non-display area. The second ends are mounted to the panel driver board. Portions of the flexible circuit boards joining the first ends and the second ends have bending shapes in a plan view.

公开(公告)号：US20160027394A1

公开(公告)日：2016-01-28

申请号：US14782244

申请日：2014-02-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Keiichi YAMAMOTO

IPC: G09G3/36

CPC classification number: G09G3/3659 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/061 ,  G09G2330/027

Abstract: A display drive circuit (drive device) has a signal line drive circuit that, before the display panel is turned OFF, writes prescribed data signals to a respective plurality of pixels via a plurality of source signal lines, such that the potential of the drain electrodes of the respective pixels becomes equal to the potential of the opposite electrode after the display panel is turned OFF.

Abstract translation: 显示驱动电路（驱动装置）具有信号线驱动电路，其在显示面板关闭之前，经由多条源极信号线将规定的数据信号写入到相应的多个像素，使得漏极的电位 在显示面板关闭之后，各个像素的电位变得等于相对电极的电位。