公开(公告)号：US20250111834A1

公开(公告)日：2025-04-03

申请号：US18883182

申请日：2024-09-12

Applicant: Sharp Display Technology Corporation

Inventor： Yousuke NAKAMURA ,  Daiji Kitagawa ,  Daisuke Suehiro ,  Jin Miyazawa

IPC: G09G3/36

Abstract: A drive control circuit that controls operations of liquid crystal drive circuits (a gate driver and a source driver) is provided with a counter that counts a polarity bias value that represents polarity bias of a data voltage applied to liquid crystal capacitance. During a scan frame period in which the polarity bias value is greater than a predetermined upper limit at a start of input of one frame of the image signal, the drive control circuit controls operations of the liquid crystal drive circuits so that the polarity bias value becomes smaller. During a scan frame period in which the polarity bias value is smaller than a predetermined lower limit at the start of input of one frame of the image signal, the drive control circuit controls the operations of the liquid crystal drive circuits so that the polarity bias value becomes larger.

公开(公告)号：US20250105504A1

公开(公告)日：2025-03-27

申请号：US18811970

申请日：2024-08-22

Applicant: Sharp Display Technology Corporation

Inventor： Hideki KITAGAWA ,  Yoshimasa CHIKAMA ,  Masamitsu YAMANAKA

IPC: H01Q3/36

Abstract: A phased array antenna with excellent reliability is provided. The phased array antenna includes a printed circuit board 10 including a plurality of first terminals, a TFT substrate 50 including a plurality of second terminals and being arranged to face the printed circuit board 10, and a plurality of conductors 30 connecting the first terminals and the second terminals, respectively. The printed circuit board includes a plurality of transmission/reception electrodes 12, and beamforming ICs 20 receiving control signals from the TFT substrate via the first terminals and controlling phases of signals transmitted/received by transmission/reception electrodes based on the control signals. The TFT substrate includes a plurality of control circuits 90 that include TFTs and generate control signals for controlling the beamforming ICs, and a flattening multilayer 70 that covers the plurality of control circuits, wherein the flattening multilayer 70 include a plurality of recessed portions 80 each of which has an opening on a top face.

公开(公告)号：US20250076703A1

公开(公告)日：2025-03-06

申请号：US18765408

申请日：2024-07-08

Applicant: Sharp Display Technology Corporation

Inventor： Kouichi WATANABE ,  Shinichi TERASHITA

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13363 ,  G02F1/1343

Abstract: A transflective liquid crystal display device includes a first polarizer, a first phase difference layer, a first substrate, a liquid crystal layer, a second substrate, a second phase difference layer, and a second polarizer. The first substrate includes a reflective layer, a pair of electrodes configured to generate a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film. The second substrate includes a second horizontal alignment film. The first phase difference layer includes a first λ/2 plate and a first λ/4 plate. The second phase difference layer includes a second λ/2 plate and a second λ/4 plate. At least one of the first phase difference layer and the second phase difference layer further includes a positive C plate. The liquid crystal layer includes a liquid crystal material having a negative-type anisotropy of dielectric constant and takes a twist alignment when no voltage is applied. Each of pixels includes a reflective region in which light is reflected by the reflective layer to perform display and a transmissive region in which light is transmitted to perform display.

公开(公告)号：US20250071915A1

公开(公告)日：2025-02-27

申请号：US18724587

申请日：2022-02-28

Applicant: Sharp Display Technology Corporation

Inventor： Mayuko SAKAMOTO ,  Takehiro MURAO ,  Yasuyuki TOGASHI ,  Ikuo NINOMIYA ,  Ryoh KIKUCHI

IPC: H05K5/02

Abstract: A foldable display includes a housing unit including a hinge member, and a first housing and a second housing coupled via the hinge member, and a flexible display panel including a flexible display layer and a support substrate. The support substrate includes a third portion between a first portion and a second portion of the support substrate. The third portion of the support substrate includes, in a first state, a first region overlapping a at least one step portion and a second region overlapping a planar portion. A first ratio of volume of openings of an opening group in the first region to volume of the first region in the first region of the support substrate is lower than a second ratio of volume of openings of an opening group in the second region to volume of the second region in the second region of the support substrate.

公开(公告)号：US20250067922A1

公开(公告)日：2025-02-27

申请号：US18766705

申请日：2024-07-09

Applicant: Sharp Display Technology Corporation

Inventor： Shugo YAGI ,  Junichi Masuda ,  Yuuichi Kanbayashi ,  Satoshi Tsubooka

IPC: F21V8/00

Abstract: An illumination device is provided with a first light source, a first light guide plate including a second main surface, a second light source, a second light guide plate including a fourth main surface, a third light source, an optical member, and a first sheet. The main surfaces of the first light guide plate and the second light guide plate overlap each other and the first light guide plate and the second light guide plate are disposed on the opposite side of the first sheet from the optical member. The first sheet includes two first light blocking portions and a first light-transmitting portion. The first light reflection portion is selectively provided in a first region in the first opposite main surface, and the second light reflection portion is provided at least in a fourth region in the second opposite main surface.

公开(公告)号：US20250063862A1

公开(公告)日：2025-02-20

申请号：US18721877

申请日：2022-02-14

Applicant: Sharp Display Technology Corporation

Inventor： Tazuko KITAZAWA

IPC: H01L33/50 ,  H01L25/075 ,  H01L33/40 ,  H01L33/42

Abstract: A pixel includes a first R subpixel having a reflective electrode disposed on a second display surface side and a first R light-emitting layer disposed on a first display surface side relative to the reflective electrode; a second R subpixel having a reflective electrodes disposed on the first display surface side and a second R light-emitting layer disposed on the second display surface side relative to the reflective electrode; a first G subpixel having a reflective electrode disposed on the second display surface side and a first G light-emitting layer disposed on the first display surface side relative to the reflective electrode; a second G subpixel having a reflective electrode disposed on the first display surface side and a second G light-emitting layer disposed on the second display surface side relative to the reflective electrode; and a B subpixel having a B light-emitting layer.

公开(公告)号：US12230178B2

公开(公告)日：2025-02-18

申请号：US18577805

申请日：2021-08-24

Applicant: Sharp Display Technology Corporation

Inventor： Keiichi Yamamoto

IPC: G09G3/00 ,  G09G3/3233

Abstract: A display device includes: at least one first pixel including a first drive transistor and a first initialization transistor configured to initialize the first drive transistor; at least one second pixel including a second drive transistor and a second initialization transistor configured to initialize the second drive transistor; a first initialization line connected to the first drive transistor via the first initialization transistor; a second initialization line connected to the second drive transistor via the second initialization transistor; and a first temperature detection transistor connected to the second initialization line, the first temperature detection transistor including a gate connected to the first initialization line.

公开(公告)号：US20250057007A1

公开(公告)日：2025-02-13

申请号：US18721677

申请日：2022-02-14

Applicant: Sharp Display Technology Corporation

Inventor： Kota ADACHI ,  Yasushi ASAOKA

IPC: H10K59/00 ,  H10K50/16 ,  H10K59/122 ,  H10K59/35

Abstract: A light-emitting device includes at least one light-emitting element including a first electrode and a second electrode facing each other, and a light-emitting layer provided between the first electrode and the second electrode. At least one of the light-emitting elements includes a plurality of carrier transport layers and at least one insulating layer, both being layered between the first electrode and the light-emitting layer. The insulating layer is provided at least partially between at least one carrier transport layer among the plurality of carrier transport layers and at least another carrier transport layer overlapping the at least one carrier transport layer.

公开(公告)号：US20250056959A1

公开(公告)日：2025-02-13

申请号：US18717409

申请日：2022-02-10

Applicant: Sharp Display Technology Corporation

Inventor： YUSUKE SAKAKIBARA

IPC: H10K50/115 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K71/20

Abstract: A blue light-emitting element includes a first electrode and a second electrode, and a function layer placed between the first electrode and the second electrode and including at least a blue light-emitting layer containing quantum dots. The blue light-emitting layer contains at least some amount of first ligands, which are at least one type of ligand selected from a ligand being a halogen atom and a ligand being a sulfur atom, and includes a first region, which is a partial region of the blue light-emitting layer including at least part of an end portion of the blue light-emitting layer, and a second region other than the first region. The number of the first ligands contained per unit volume in the first region is greater than the number of the first ligands contained per unit volume in the second region.

公开(公告)号：US20250056922A1

公开(公告)日：2025-02-13

申请号：US18718014

申请日：2022-02-18

Applicant: Sharp Display Technology Corporation

Inventor： Keisuke KITANO ,  Yoji MATSUDE ,  Yoshihiro UETA

IPC: H01L33/06 ,  C09K11/08 ,  H01L25/075

Abstract: A quantum-dot-containing composition contains: either quantum dots each having a surface provided with only one equivalent crystal plane, or quantum dots each having a surface provided with two or more different equivalent crystal planes; and one selected from (A), (B), and (C) below: (A) two or more compounds; (B) one or more compounds, and single atoms formed of one or more halogens or chalcogens; and (C) single atoms formed of two or more halogens or chalcogens.