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.

公开(公告)号：US20240210777A1

公开(公告)日：2024-06-27

申请号：US18524820

申请日：2023-11-30

Applicant: Sharp Display Technology Corporation

Inventor： Ryo YONEBAYASHI ,  KOHHEI TANAKA

IPC: G02F1/139 ,  G02B30/25 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1345

CPC classification number: G02F1/1393 ,  G02B30/25 ,  G02F1/133512 ,  G02F1/134363 ,  G02F1/1345

Abstract: Provided are a liquid crystal panel capable of sufficiently reducing noise without an increase in load on the system, and an active retarder for 3D image display and a display device each including the liquid crystal panel. The liquid crystal panel includes: pixels adjacent to one another; a pair of substrates; pixel electrodes corresponding to the respective pixels; common electrodes overlapping the respective pixel electrodes; a liquid crystal layer; and an input unit. The pixel electrodes, the common electrodes, and the liquid crystal layer are disposed between the pair of substrates. The common electrodes are adjacent to one another across an aperture in a plan view. The aperture overlaps a boundary between the pixel electrodes. The input unit is configured to input a same signal to the common electrodes.

公开(公告)号：US20230013661A1

公开(公告)日：2023-01-19

申请号：US17376519

申请日：2021-07-15

Applicant: Sharp Display Technology Corporation

Inventor： OLIVER JAMES BEARD ,  KOHHEI TANAKA

IPC: G09G3/3233

Abstract: A pixel circuit for a display device is disclosed. The pixel circuit may include a drive transistor configured to control an amount of current from a first power supply to a light-emitting device depending upon a voltage applied to a gate of the drive transistor. The light-emitting device includes a first terminal electrically connected to a second terminal of the drive transistor and a second terminal electrically connected to a second power supply. The pixel circuit may also include a storage capacitor including a first plate connected to the gate terminal of the drive transistor and a second plate connected to a first node. The pixel circuit may also include a plurality of transistors configured to couple the first power supply, a data voltage input line, and a preset voltage input line to the pixel circuit.

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.