公开(公告)号：US20250157421A1

公开(公告)日：2025-05-15

申请号：US18911422

申请日：2024-10-10

Applicant: Sharp Display Technology Corporation

Inventor： Masashi TSUBOTANI

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/32 ,  G09G3/36

Abstract: A display device includes a display panel including a liquid crystal panel and a backlight disposed behind the liquid crystal panel, and a controller configured to control luminance of the backlight. The controller is configured to increase or decrease the luminance of the backlight at a time of switching a refresh rate when an image is displayed on the display panel in accordance with an image signal in such a manner that a change in luminance of the display panel before and after the switching with respect to an image signal having the same gray scale falls within a predetermined range.

公开(公告)号：US20250151516A1

公开(公告)日：2025-05-08

申请号：US18837680

申请日：2022-04-20

Applicant: Sharp Display Technology Corporation

Inventor： YASUSHI ASAOKA ,  Sentaro KIDA ,  Takahiro ADACHI

IPC: H10K59/12 ,  H10K59/122 ,  H10K59/35 ,  H10K71/12

Abstract: A display device includes a first light-emitting layer formed continuously over a plurality of first pixels, and a second light-emitting layer formed continuously over a plurality of second pixels and not overlapping the first light-emitting layer in a plan view. The second light-emitting layer includes a solution drop material, and the first light-emitting layer is formed overlapping a part of an outer peripheral portion of each pixel in a plan view.

公开(公告)号：US20250138361A1

公开(公告)日：2025-05-01

申请号：US18899016

申请日：2024-09-27

Applicant: Sharp Display Technology Corporation

Inventor： Shinichi Terashita ,  Kouichi Watanabe

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

Abstract: Provided is a liquid crystal display device with sufficiently reduced or prevented alignment defect generation and useful as an in-cell touch panel capable of providing display in the reflective mode. The liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes a reflective layer reflecting light, first and second electrodes capable of generating a transverse electric field in the liquid crystal layer, and a first horizontal alignment film. At least one of the first electrode or the second electrode includes strip portions and a slit between adjacent two strip portions among the strip portions. The second substrate includes a second horizontal alignment film in contact with the liquid crystal layer. The liquid crystal layer includes liquid crystal molecules having a positive anisotropy of dielectric constant and is in a twist alignment during no voltage application.

公开(公告)号：US20250123514A1

公开(公告)日：2025-04-17

申请号：US18916937

申请日：2024-10-16

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  H04N23/20 ,  H04N23/54 ,  H04N23/57

Abstract: An image pickup apparatus equipped with a display function includes a liquid crystal panel, an infrared camera including a condenser lens and an imaging element, and a backlight disposed on a back face of the liquid crystal panel. The liquid crystal panel includes a display region including a first region and a second region located to surround the first region in a plan view, at least the imaging element of the infrared camera is disposed on a light path of light transmitted through the first region and the condenser lens, and the liquid crystal panel does not include a black matrix at least in the first region but includes color filters in the first and second regions.

公开(公告)号：US12276893B2

公开(公告)日：2025-04-15

申请号：US18416940

申请日：2024-01-19

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihito Hara ,  Tohru Daitoh ,  Hajime Imai ,  Teruyuki Ueda ,  Masaki Maeda ,  Tatsuya Kawasaki ,  Yoshiharu Hirata

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1345 ,  G02F1/1362 ,  G03F7/00 ,  G06F3/041 ,  G06F3/044

Abstract: An active matrix substrate includes a plurality of thin film transistors including an oxide semiconductor layer, an interlayer insulating layer, a plurality of pixel electrodes arranged above the interlayer insulating layer, a common electrode arranged between the pixel electrode and the interlayer insulating layer and also configured to function as a touch sensor electrode, a first dielectric layer arranged between the interlayer insulating layer and the common electrode, a second dielectric layer arranged between the common electrode and the pixel electrode, a plurality of touch wiring lines arranged between the interlayer insulating layer and the common electrode and formed of a third conductive film, and a plurality of pixel contact portions, in which each of the plurality of pixel contact portions includes a drain electrode of the thin film transistor, a connection electrode formed of the third conductive film and electrically connected to the drain electrode in a lower opening formed in the interlayer insulating layer, and a pixel electrode electrically connected to the connection electrode in an upper opening formed in the first dielectric layer and the second dielectric layer.

公开(公告)号：US12276797B2

公开(公告)日：2025-04-15

申请号：US18136272

申请日：2023-04-18

Applicant: Sharp Display Technology Corporation

Inventor： Naru Usukura

IPC: G02B27/01 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  H10K59/80

Abstract: Provided is a display device having a thin profile and a high light use efficiency and a head-mounted display including the display device. The display device includes a display panel; a circular polarizer configured to convert display light from the display panel into circularly polarized light and to transmit the circularly polarized light; a patterning mirror including light transmitters and a light reflector, the light transmitters being configured to transmit the circularly polarized light and the light reflector being provided on a surface opposite to a surface facing the circular polarizer; a lens configured to transmit the circularly polarized light transmitted through the patterning mirror; and a circularly polarized light selective reflector configured to selectively reflect the circularly polarized light transmitted through the lens.

公开(公告)号：US20250116898A1

公开(公告)日：2025-04-10

申请号：US18792883

申请日：2024-08-02

Applicant: Sharp Display Technology Corporation

Inventor： Makoto NAKAZAWA ,  Keisuke YOSHIDA

IPC: G02F1/1335 ,  G02B27/01

Abstract: A color filter substrate includes first and second color filters exhibiting different colors and a light blocking portion. The light blocking portion includes a first transmissive film, a first reflective film on an upper layer side of the first transmissive film, a second transmissive film on an upper layer side of the first reflective film, and a second reflective film on an upper layer side of the second transmissive film and being thicker than the first reflective film. The first transmissive film includes a first bottom surface and a first side surface being inclined at a first angle with respect to the first bottom surface. The second reflective film includes a second bottom surface extending parallel to the first bottom surface and a second side surface being inclined at a second angle with respect to the second bottom surface. The first angle and the second angle are acute angles.

公开(公告)号：US12267922B2

公开(公告)日：2025-04-01

申请号：US18195028

申请日：2023-05-09

Applicant: Sharp Display Technology Corporation

Inventor： Hidekazu Miyata

IPC: H05B45/30 ,  G02F1/1335 ,  G02F1/13357 ,  H01L25/075 ,  H05B45/10 ,  H05B45/46

Abstract: An anode line control circuit provided corresponding to each of anode lines includes a first resistor connected to a control terminal of a first switching element, which controls the supply of a power supply voltage to the anode line, and a second switching element connected to a second resistor connected to one end of the anode line. When the first switching element changes from an OFF state to an ON state, the second switching elements corresponding to the anode lines other than the anode line connected to the first switching element are maintained in the OFF state.

公开(公告)号：US20250104665A1

公开(公告)日：2025-03-27

申请号：US18894353

申请日：2024-09-24

Applicant: Sharp Display Technology Corporation

Inventor： Tetsuya UMEHARA ,  Masahiro Takeda ,  Hideo Hosorogi

IPC: G09G3/36

Abstract: A display device includes multiple scan lines arranged in a display region; a first scan line driving circuit outside the display region that is connected to multiple scan lines at one end in an extending direction and supplies voltages to multiple scan lines; a second scan line driving circuit outside the display region that is connected to multiple scan lines at the other end in the extending direction and supplies voltages to multiple scan lines; and a control circuit. The control circuit alternately drives either the first scan line driving circuit or the second scan line driving circuit for each predetermined frame when a refresh rate of an image displayed according to a video signal is a first refresh rate, and drives both the first scan line driving circuit and the second scan line driving circuit at a second refresh rate higher than the first refresh rate.

公开(公告)号：US20250102867A1

公开(公告)日：2025-03-27

申请号：US18806501

申请日：2024-08-15

Applicant: Sharp Display Technology Corporation

Inventor： Hiroaki ASAGI ,  Kiyoshi MINOURA ,  Daisuke MINAMI

IPC: G02F1/1337 ,  G02F1/13363 ,  G02F1/1343 ,  G06F1/16

Abstract: Provided is a liquid crystal element sequentially including: a first substrate; a first weak anchoring horizontal alignment film; a liquid crystal layer containing dual-frequency liquid crystal molecules; a second weak anchoring horizontal alignment film; and a second substrate. At least one of the first substrate or the second substrate includes a comb-teeth electrode for electric field generation in the liquid crystal layer. The dual-frequency liquid crystal molecules are twist-aligned between the first and second substrate with voltage applied and with no voltage applied. A direction of twist of the dual-frequency liquid crystal molecules with voltage applied and that with no voltage applied are the same. An alignment direction of dual-frequency liquid crystal molecules in a center of the liquid crystal layer in a thickness direction is orthogonal or parallel to an extension direction of the comb-teeth electrode.