公开(公告)号：US20240404485A1

公开(公告)日：2024-12-05

申请号：US18621428

申请日：2024-03-29

Applicant: Sharp Display Technology Corporation

Inventor： KAORU YAMAMOTO ,  Kohhei Tanaka ,  Keiichi Yamamoto

IPC: G09G3/36

Abstract: In a first transition period during which an operation mode transitions from a normal mode to a low power consumption mode, a source driver changes the potential of each source bus line to 0 V, a gate driver sets all gate bus lines to be in a high impedance state in a state where a gate low power source voltage VGL (a potential of a second level: for example, −7 V) is applied to all of the gate bus lines, and a power source IC sets a common electrode and a VGL line to be in a high impedance state.

公开(公告)号：US20240162214A1

公开(公告)日：2024-05-16

申请号：US18378106

申请日：2023-10-09

Applicant: Sharp Display Technology Corporation

Inventor： KOHHEI TANAKA ,  KAORU YAMAMOTO ,  Keiichi YAMAMOTO ,  Ryo YONEBAYASHI

IPC: H01L25/18

CPC classification number: H01L25/18 ,  H01L25/167

Abstract: A display device includes an active matrix substrate including a plurality of pixels and a driver unit. The driver unit includes a flexible substrate, a first wiring pattern disposed on the flexible substrate, a demultiplexer circuit or a multiplexer circuit supported by the flexible substrate and connected to the first wiring pattern, and a source driver IC supported by the flexible substrate and connected to the first wiring pattern. The driver unit is connected to a display panel, and a TFT of the plurality of pixels and a TFT of the demultiplexer circuit or the multiplexer circuit have semiconductors different from each other.

公开(公告)号：US20240404486A1

公开(公告)日：2024-12-05

申请号：US18621439

申请日：2024-03-29

Applicant: Sharp Display Technology Corporation

Inventor： KAORU YAMAMOTO ,  KOHHEI TANAKA ,  Keiichi YAMAMOTO

IPC: G09G3/36 ,  G09G3/20

Abstract: In a first transition period during which an operation mode transitions from a normal mode to a low power consumption mode, a VCOM generation unit in a power source IC changes a potential of a common electrode drive voltage VCOM from a potential of a first level (for example, 5 V) to a potential of a second level (for example, 12 V) so that a leakage current flowing through a pixel transistor is not generated during a pause period, a gate driver changes a potential of each gate bus line to 0 V, and a source driver changes a potential of each source bus line to 0 V.