公开(公告)号：US12259615B2

公开(公告)日：2025-03-25

申请号：US18658856

申请日：2024-05-08

Applicant: Sharp Display Technology Corporation

Inventor： Satsuki Hagihara ,  Kazuhiko Negoro ,  Mayumi Hori ,  Kenichi Iwamoto

IPC: G02F1/1335 ,  G02F1/13357

Abstract: A backlight apparatus includes an LED substrate having a principal surface over which a plurality of light-emitting elements that emit excitation light are arrayed, a phosphor layer containing a phosphor that emits fluorescence upon receiving the excitation light, a wavelength-selective reflecting layer disposed between the phosphor layer and the LED substrate, and a louver film disposed between the wavelength-selective reflecting layer and the LED substrate and having a plurality of louvers. The wavelength-selective reflecting layer has different transmittances according to wavelengths and/or angles of incidence of light falling thereon. The louver film blocks the fluorescence and the excitation light falling thereon at an angle greater than or equal to a first angle and smaller than 90 degrees with respect to a direction normal to a film surface of the louver film.

公开(公告)号：US20250078773A1

公开(公告)日：2025-03-06

申请号：US18771700

申请日：2024-07-12

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihisa TAKAHASHI

IPC: G09G3/36

Abstract: A display device includes pixels arranged in a matrix, scanning signal lines, display signal lines, a scanning signal line driving circuit, a display signal line driving circuit, and input signal lines for supplying an input signal to the scanning signal line driving circuit. The scanning signal line driving circuit includes a shift register circuit, and each stage of the shift register circuit includes an input terminal connected to the input signal line via a branch line and an output terminal connected to the scanning signal line. The input signal line includes unit portions when a portion between the adjacent branch lines is defined as a unit portion, and the unit portions include at least one first unit portion each having a resistance value smaller than a resistance value of the unit portion adjacent thereto on a downstream side in an input direction of the input signal.

公开(公告)号：US20250078719A1

公开(公告)日：2025-03-06

申请号：US18768086

申请日：2024-07-10

Applicant: Sharp Display Technology Corporation

Inventor： Junichi SAWAHATA

IPC: G09G3/20

Abstract: A display device includes: a display panel including a pixel array including a plurality of pixels, a plurality of gate bus lines connected to the pixel array, a first gate driver circuit disposed on one side of the pixel array, and configured to supply a scan signal to the plurality of gate bus lines, and a second gate driver circuit disposed opposite the first gate driver circuit with respect to the pixel array, and configured to supply a scan signal to the plurality of gate bus lines; a first protection circuit configured to detect a first overcurrent supplied to the first gate driver circuit to protect the first gate driver circuit from the first overcurrent; and a second protection circuit different from the first protection circuit, and configured to detect a second overcurrent supplied to the second gate driver circuit to protect the second gate driver circuit from the second overcurrent.

公开(公告)号：US12243878B2

公开(公告)日：2025-03-04

申请号：US17963287

申请日：2022-10-11

Applicant: Sharp Display Technology Corporation

Inventor： Hikaru Yoshino ,  Satoshi Horiuchi ,  Junichi Morinaga

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1368 ,  H01L27/12

Abstract: An active matrix substrate includes a substrate in which a notch or an aperture is formed, and electrodes. Each electrode includes at least either of: a capacitor forming portion that is arranged in a region other than a bypass region and overlaps with at least one of a plurality of bypass gate lines when viewed in a plan view; and an electrode layer portion that is formed in an electrode layer and that composes a bypass gate line interposed portion together with a source line layer portion formed in a source line layer in the bypass region. The electrode layer portion and the source line layer portion overlap with at least one of the bypass gate lines in the bypass region when viewed in a plan view, and at least one of the bypass gate lines is positioned between the electrode layer portion and the source line layer portion in a normal line direction of the substrate.

公开(公告)号：US20250069563A1

公开(公告)日：2025-02-27

申请号：US18779759

申请日：2024-07-22

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH

IPC: G09G3/36

Abstract: A display device includes a substrate including a display region including a plurality of divided regions divided into three or more and disposed in a first direction on a main surface, a scanning line extending in a first direction, a data line extending in a second direction, a plurality of pixels, and a scanning line connection wiring line extending in the second direction, which are disposed in each of the plurality of divided regions, a plurality of data line drive circuits respectively connected to the data lines in each of the plurality of divided regions, and a plurality of scanning line drive circuits corresponding to each of the plurality of divided regions. The scanning line drive circuits and the data line drive circuits are arrayed in the first direction outside the display region, each of the plurality of scanning line connection wiring lines electrically connects the scanning line drive circuit to the scanning line, and the plurality of scanning line drive circuits and the plurality of data line drive circuits display an image at a frame frequency different from each other in at least a pair of divided regions adjacent to each other among the plurality of divided regions.

公开(公告)号：US20250061861A1

公开(公告)日：2025-02-20

申请号：US18726045

申请日：2022-04-28

Applicant: Sharp Display Technology Corporation

Inventor： Masahito SANO

IPC: G09G3/3258 ,  G09G3/3233

Abstract: Regarding a display device that uses display elements driven by current, occurrence of flicker upon pause driving is suppressed while an increase in power consumption is suppressed. In a period, during which supply of a drive current to an organic EL element is stopped, in a refresh frame period (RF) included in a driving period, before a writing period (14) during which a data voltage is provided to the control terminal of the drive transistor, a reset circuit provided in a pixel circuit provides an off-voltage that brings a drive transistor into off state to a control terminal of the drive transistor, and then provides an initialization voltage that brings the drive transistor into on state to the control terminal of the drive transistor.

公开(公告)号：US20250056987A1

公开(公告)日：2025-02-13

申请号：US18721878

申请日：2022-02-16

Applicant: Sharp Display Technology Corporation

Inventor： Tamotsu SAKAI

IPC: H10K59/131 ,  H10K59/123

Abstract: A third TFT is provided with a third semiconductor layer in which a fifth conductor region, a sixth conductor region, and a third channel region are defined, and which is formed by a second semiconductor film made of an oxide semiconductor, with a fourth gate electrode provided on the third semiconductor layer via a fourth inorganic insulating film so as to overlap with the third channel region, and with a fifth gate electrode provided on a base substrate side of the third semiconductor layer via a second inorganic insulating film and a third inorganic insulating film so as to overlap with the third channel region.

公开(公告)号：US12224303B2

公开(公告)日：2025-02-11

申请号：US18197117

申请日：2023-05-15

Applicant: Sharp Display Technology Corporation

Inventor： Makoto Nakazawa ,  Hiroyuki Moriwaki ,  Rikiya Takita ,  Tetsuya Tanishima

IPC: H01L27/146 ,  G01T1/20

Abstract: In a manufacturing method of a photoelectric conversion panel, a contact hole CH3 that exposes a part of an upper face of a photodiode and a contact hole CH2 that exposes a source connection electrode are formed in a first flattening film and in inorganic insulating films 105a to 105c, an inorganic insulating film 107 is formed, contact holes CH2a and CH3a are formed in the contact holes CH2 and CH3, respectively, and a bias line and a data line are formed in the contact holes CH2a and CH3a, respectively.

公开(公告)号：US20250035610A1

公开(公告)日：2025-01-30

申请号：US18715903

申请日：2022-02-03

Applicant: Sharp Display Technology Corporation

Inventor： Kenichi KITOH ,  Fumitoshi YASUO ,  Chihiro TACHINO ,  Tomoko TERANISHI ,  Takeshi HARA

IPC: G01N33/483 ,  C12M1/34

Abstract: A cell potential measuring device includes a base plate having insulation properties, first line disposed on the base plate, an insulation layer disposed on the base plate and covering at least a surface of the first line, a first electrode disposed on the insulation layer and being electrically connected to the first line, and a second line disposed on the base plate and a portion of which is disposed below the first electrode via the insulation layer.

公开(公告)号：US20250031451A1

公开(公告)日：2025-01-23

申请号：US18715544

申请日：2022-02-02

Applicant: Sharp Display Technology Corporation

Inventor： Masatomo HONJO

IPC: H01L27/12

Abstract: A display device includes an insulating layer located in a gap between a first electrode and a second electrode and including an application-type insulating material, and an oxide semiconductor layer, at least a portion of which functions as a channel of a first transistor. The oxide semiconductor layer is in contact with the upper surface of the insulating layer.