公开(公告)号：US12175916B2

公开(公告)日：2024-12-24

申请号：US18381965

申请日：2023-10-19

Applicant: Sharp Display Technology Corporation

Inventor： Osamu Sasaki

IPC: G09G3/20

Abstract: A display device has a gate drive circuit that performs scanning to sequentially supply a gate signal, and a source drive circuit that inverts the polarity of the voltage applied to the source line in each vertical scanning period. The gate drive circuit starts scanning from a first gate line among the plurality of gate lines when scanning the gate lines in a preceding period of two consecutive vertical scanning periods, and starts scanning from a second gate line different from the first gate line when scanning the gate lines in a period following the preceding period of two vertical scanning periods.

公开(公告)号：US12174487B1

公开(公告)日：2024-12-24

申请号：US18586741

申请日：2024-02-26

Applicant: Sharp Display Technology Corporation

Inventor： Hirotoshi Yasunaga ,  Hisashi Watanabe

IPC: G02F1/13357 ,  G02F1/133

Abstract: A lighting device includes light sources, a board having a mount surface on which the light sources are arranged, and a reflection member disposed on the mount surface of the board and having a rectangular plan view shape. The reflection member includes insertion holes in each of which at least one of the light sources is disposed and wall portions defining a surface area of the reflection member into reflection areas in a grid. Some of the wall portions surround at least one of the insertion holes. The reflection areas include a first reflection area at a corner portion of the reflection member. The wall portions include one wall portion that is included in the first reflection area and the one wall portion includes a passing portion through which light from one of the light sources that is adjacent to the reflection area via the one wall portion passes.

公开(公告)号：US20240420428A1

公开(公告)日：2024-12-19

申请号：US18643505

申请日：2024-04-23

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA

IPC: G06T19/00 ,  G02B5/08 ,  G02B5/30

Abstract: An augmented reality display device causes a user to perceive first and second images at different distances in a state where the user can perceive a real environment. The augmented reality display device includes: a display panel which emits polarized lights for first and second images; a surface-divided polarization conversion component; and an optical element and a concave semi-transparent mirror. The surface-divided polarization conversion component in a plan view includes: a first transmissive part; and a second transmissive part which introduces a phase difference different by λ/2 from a phase difference introduced by the first transmissive part. The optical element makes a first image generated from the first polarized light transmitted through the first transmissive part different in virtual image distance from a second image generated from the second polarized light transmitted through the second transmissive part.

公开(公告)号：US20240414975A1

公开(公告)日：2024-12-12

申请号：US18726144

申请日：2022-03-23

Applicant: Sharp Display Technology Corporation

Inventor： Shota NOMIYAMA

IPC: H10K59/80 ,  H10K59/35

Abstract: A light-emitting element includes: a first electrode including a first conductive layer and a second conductive layer, the first conductive layer being provided with a flat surface serving as an upper surface and reflecting visible light, and the second conductive layer being provided on the flat surface, transmitting the visible light, and including a first region having a first thickness, a second region positioned around the first region and having a second thickness thicker than the first thickness, and a third region positioned around the second region and having a third thickness thicker than the second thickness; a functional layer including at least a light-emitting layer and formed on the second conductive layer in conformity with a shape of the second conductive layer, and a second electrode formed on the functional layer and transmitting the visible light; and an edge cover containing at least one of a scattering material to scatter the visible light or a light-blocking material to block the visible light, covering at least a portion of an end portion of the first electrode, and formed higher than the second electrode.

公开(公告)号：US20240414940A1

公开(公告)日：2024-12-12

申请号：US18696886

申请日：2021-12-06

Applicant: Sharp Display Technology Corporation

Inventor： Masaki MAEDA ,  Hajime IMAI ,  Yoshiharu HIRATA ,  Teruyuki UEDA ,  Tatsuya KAWASAKI ,  Tohru DAITOH

IPC: H10K59/121 ,  H01L27/12 ,  H10K59/131 ,  H10K59/80

Abstract: A display device includes: a base substrate; a thin-film transistor layer provided on the base substrate and having a first metal layer containing a copper film; and a light-emitting element layer provided on the thin-film transistor layer, and including a plurality of pixel electrodes, a plurality of light-emitting functional layers, and a common electrode, all of which are sequentially stacked on top of another and corresponding to a plurality of subpixels. A terminal unit includes a plurality of terminals formed of a same material as, and arranged in a same layer as, the first metal layer. Each of the pixel electrodes is formed of a second metal layer containing a silver film. On each of the terminals, a terminal protective layer formed of a transparent conductive film is provided.

公开(公告)号：US20240412690A1

公开(公告)日：2024-12-12

申请号：US18700348

申请日：2021-12-29

Applicant: Sharp Display Technology Corporation

Inventor： Kohhei TANAKA ,  Seiichi UCHIDA

IPC: G09G3/3233 ,  G06F3/041 ,  G09G3/3266 ,  G09G3/3275

Abstract: A pixel circuit with sensing function that can perform sensing operation and display operation in a simultaneous and parallel manner is implemented using a small number of elements. For each pixel circuit (20) there are provided a sensor circuit (22) connected to a control node (NG) and including three or less circuit elements; and a read circuit (24) connected to a second conductive terminal of a drive transistor (T4) and including one read transistor (T9). A sensing process is performed during a period during which a drive current is supplied to an organic EL element (21) depending on a potential at the control node (NG). A sensing result reading process is performed by maintaining the read transistor (T9) in on state during a predetermined period after ending the sensing process.

公开(公告)号：US12158658B2

公开(公告)日：2024-12-03

申请号：US18234607

申请日：2023-08-16

Applicant: Sharp Display Technology Corporation

Inventor： Hisashi Watanabe

IPC: G02F1/1335 ,  H01L25/16 ,  H01L33/60

Abstract: Provided is a display device allowing perception of any design in a non-display state while allowing perception of display images in a display state without hindrance by the design. The display device includes, in the following order from a viewer side: a front plate; and a display panel. The front plate includes: a transflective component; a design layer having a first design and being disposed on or in front of a viewer side of the transflective component; and an inverted design layer disposed on or behind a side opposite to the viewer side of the transflective component. The transflective component transmits light incident on its display panel side and partially reflects light incident on its viewer side. The inverted design layer has a second design overlaid with the first design in a plan view and being an inversion of the first design in terms of brightness or hue.

公开(公告)号：US20240397769A1

公开(公告)日：2024-11-28

申请号：US18692942

申请日：2021-11-02

Applicant: Sharp Display Technology Corporation

Inventor： Tohru OKABE ,  Shoji OKAZAKI ,  Shinsuke SAIDA ,  Shinji ICHIKAWA ,  Hiroki TANIYAMA ,  Eiji FUJIMOTO

IPC: H10K59/131 ,  H01L25/16 ,  H10K59/35 ,  H10K59/80 ,  H10K59/90 ,  H10K102/00

Abstract: A terminal portion provided in a frame region around a display region is provided with a resin substrate, an inorganic layered film provided above the resin substrate, a pad column provided above the inorganic layered film, the pad column including a plurality of pads arranged in a row electrically connected to a plurality of bumps provided on an IC chip via an ACF, and a flattening film including an organic insulating film provided above the inorganic layered film and the pad column, the flattening film covering an end portion of each of the plurality of pad, and an opening exposing the inorganic layered film is formed in the flattening film.

公开(公告)号：US20240389412A1

公开(公告)日：2024-11-21

申请号：US18691546

申请日：2021-12-07

Applicant: Sharp Display Technology Corporation

Inventor： Hiroyuki MADONO ,  Yoshifumi OHTA ,  Takeshi HIRASE ,  Takashi TOYODA

IPC: H10K59/131

Abstract: A display device includes a dummy contact hole formed away from a portion of a routed wiring portion in a width direction, and formed to overlap with another portion of the routed wiring portion in the width direction. The routed wiring portion bypasses a first region and passes through a second region.

公开(公告)号：US12147138B2

公开(公告)日：2024-11-19

申请号：US18197014

申请日：2023-05-12

Applicant: Sharp Display Technology Corporation

Inventor： Seiichi Uchida ,  Kiyoshi Minoura ,  Kuniaki Okada ,  Hiromi Katoh ,  Keisuke Yoshida

IPC: G02F1/1368 ,  G02F1/1362

Abstract: An active matrix substrate includes a substrate that is transparent, and a plurality of pixels positioned on the substrate. Each pixel includes a thin-film transistor (TFT) positioned on the substrate, a first color filter layer disposed on the substrate so as to cover the TFT, a contact hole being provided in the first color filter layer, a pixel electrode that is positioned on a bottom face and a side face of the contact hole, and on the first color filter layer, and that is electrically connected to the TFT via the contact hole, and a second color filter layer disposed within the contact hole.