公开(公告)号：US20250148981A1

公开(公告)日：2025-05-08

申请号：US18838165

申请日：2022-04-19

Applicant: Sharp Display Technology Corporation

Inventor： Kei SHINADA ,  Kazuki TAKAHASHI ,  Kazuo NAKAMURA ,  Noriyuki TANAKA

IPC: G09G3/3233

Abstract: A display device includes a plurality of subpixels that include pixel circuits respectively including light-emitting elements, a display region that includes the plurality of subpixels, a frame region that is provided outside the display region, first power supply voltage wiring lines for supplying a high potential side power supply to the pixel circuits, second power supply voltage wiring lines for supplying a low potential side power supply to the pixel circuits, one or more adjustment circuits each of which includes a switching element and an adjustment element and is connected to the first power supply voltage wiring lines and the second power supply voltage wiring lines, and a control circuit that controls a current value of the adjustment element in accordance with image data.

公开(公告)号：US20230273697A1

公开(公告)日：2023-08-31

申请号：US18095241

申请日：2023-01-10

Applicant: Sharp Display Technology Corporation

Inventor： Jin MIYAZAWA ,  Noriyuki TANAKA ,  Daiji KITAGAWA ,  Tatsuhiko SUYAMA ,  Yousuke NAKAMURA ,  Daisuke SUEHIRO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/044

Abstract: A display device includes: a display panel including a sensor unit configured to detect a touch operation; a first control unit configured to supply a first signal to the display panel; and a second control unit configured to calculate touch information related to the touch operation and to supply the touch information to the first control unit. The first control unit includes: a signal generator configured to generate the first signal based on an image signal supplied from an external image signal supply source; and an overdrive circuit configured to perform a process of increasing an amplitude of the first signal generated by the signal generator. The overdrive circuit is actuated based on the touch information from the second control unit. The first control unit, in response to the actuation of the overdrive circuit, supplies the first signal having the amplitude increased by the overdrive circuit to the display panel.

公开(公告)号：US20230333679A1

公开(公告)日：2023-10-19

申请号：US18135041

申请日：2023-04-14

Applicant: Sharp Display Technology Corporation

Inventor： Daisuke SUEHIRO ,  Daiji KITAGAWA ,  Noriyuki TANAKA ,  Tatsuhiko SUYAMA ,  Jin MIYAZAWA ,  Yousuke NAKAMURA

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/04164 ,  G09G3/3655

Abstract: A touch panel display driver includes a source driver circuit, a touch detection circuit, a selector circuit, a register a plurality of source terminals, a plurality of touch detection terminals, and a plurality of selection terminals. The selector circuit electrically connects the source driver circuit to each of the source terminals, electrically connects the touch detection circuit to each of the touch detection terminals, and electrically connects each of the selection terminals to the source driver circuit or the touch detection circuit.