公开(公告)号：US11927775B2

公开(公告)日：2024-03-12

申请号：US18134504

申请日：2023-04-13

Applicant: Sharp Display Technology Corporation

Inventor： Masahiro Hasegawa ,  Akira Sakai ,  Kiyoshi Minoura

IPC: G02B30/24 ,  G02B30/25 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347 ,  G02C11/00

CPC classification number: G02B30/24 ,  G02B30/25 ,  G02F1/133528 ,  G02F1/133634 ,  G02F1/133638 ,  G02F1/1347 ,  G02C11/10 ,  G02F2413/04 ,  G02F2413/13 ,  G02F2413/14

Abstract: Provided are 3D glasses capable of reducing crosstalk when disposed on the viewer side of a liquid crystal panel that is time-divisionally driven; an optical device including the 3D glasses; and a three-dimensional image display device including the optical device. The 3D glasses include a right-eye polarizer and a left-eye polarizer, the right-eye polarizer and the left-eye polarizer each including a polarizing plate and a first λ/4 plate, at least one of the right-eye polarizer or the left-eye polarizer including a phase difference layer on or behind a back surface side of the polarizing plate, wherein a phase difference introduced by the right-eye polarizer in a thickness direction at a wavelength of 550 nm is different from a phase difference introduced by the left-eye polarizer in the thickness direction at a wavelength of 550 nm.

公开(公告)号：US20240071328A1

公开(公告)日：2024-02-29

申请号：US18229211

申请日：2023-08-02

Applicant: Sharp Display Technology Corporation

Inventor： Akihiro MASUDA

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3611 ,  G09G3/2096 ,  G09G2310/061 ,  G09G2330/021

Abstract: A switching control circuit is included in a boost direct current to direct current (DC-DC) converter generating an analog power supply voltage to be supplied to a source driver. The switching control circuit supplies a switching pulse to a control terminal of a switching element varying an inductor current such that an operation mode transitions to a current continuation mode during a first predetermined period that is at least a portion of a time duration that continues from a moment when the operation mode transitions from the current continuation mode to a current discontinuation mode in response to transitioning from an efficient video period to a vertical blanking period to a moment when the vertical blanking period transitions to the effective video period.

公开(公告)号：US20240046900A1

公开(公告)日：2024-02-08

申请号：US18228715

申请日：2023-08-01

Applicant: Sharp Display Technology Corporation

Inventor： Junichi SAWAHATA

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3677 ,  G09G2310/0278

Abstract: A display device includes a plurality of pixels, a plurality of scanning signal lines, a plurality of data signal lines, a source driver configured to supply a data signal to the plurality of pixels via a corresponding data signal line of the plurality of data signal lines, and a spare wiring line configured to connect to a disconnected data signal line. For each data signal output to a data signal line with disconnection corrected by the spare wiring line, the source driver sets an output delay amount according to a disconnection position and a line position of a pixel to be supplied with the data signal.

公开(公告)号：US20240027634A1

公开(公告)日：2024-01-25

申请号：US18218620

申请日：2023-07-06

Applicant: Sharp Display Technology Corporation

Inventor： Hiroyuki MORIWAKI

IPC: G01T1/20 ,  H01L27/146

CPC classification number: G01T1/2018 ,  H01L27/14663 ,  H01L27/14616 ,  H01L27/14636 ,  H01L27/14689 ,  H01L27/14698

Abstract: A photoelectric conversion panel includes a TFT, a photodiode, a first organic film formed on an upper layer from the photodiode, a bias line formed on an upper layer from the first organic film, a data line separated from the bias line, a second organic film covering the first organic film, the bias line, and the data line, and a first inorganic insulating film. Part of the second organic film is disposed between the bias line and the data line. The first inorganic insulating film covers the second organic film.

公开(公告)号：US20240019735A1

公开(公告)日：2024-01-18

申请号：US18219132

申请日：2023-07-07

Applicant: Sharp Display Technology Corporation

Inventor： Motoaki OKITSU

IPC: G02F1/13357 ,  G02F1/1333

CPC classification number: G02F1/133603 ,  G02F1/133608 ,  G02F1/133382

Abstract: A backlight unit includes an LED substrate including a first main surface and a second main surface on a side opposite to the first main surface, a plurality of LED elements arranged on the first main surface, one or more drive IC elements arranged on the second main surface, a chassis disposed on the second main surface side of the LED substrate, and one or more IC element covers each being in direct or indirect contact with a corresponding drive IC element of the one or more drive IC elements. The chassis includes one or more protrusions respectively corresponding to the one or more drive IC elements. Each of the one or more protrusions includes an opening that exposes the corresponding drive IC element when viewed from a normal direction of the second main surface. The IC element cover fits in the protrusion.

公开(公告)号：US11869452B2

公开(公告)日：2024-01-09

申请号：US18095256

申请日：2023-01-10

Applicant: Sharp Display Technology Corporation

Inventor： Naoko Goto

IPC: G09G3/36 ,  G09G3/20 ,  G09G3/34

CPC classification number: G09G3/3607 ,  G09G3/2074 ,  G09G3/3426 ,  G09G2300/023 ,  G09G2300/0465 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2360/16

Abstract: In an image processing device, for each of one or two or more picture elements among a plurality of picture elements, the one or two or more picture elements having an input grayscale value included in the input image data being equal to or less than a first predetermined value, the second panel data correction unit corrects the second aperture ratio of each of at least one pixel among the plurality of pixels, the at least one pixel facing the one or two or more picture elements, so that an actual transmittance gets closer to a theoretical transmittance, and the first panel data generation unit generates the first aperture ratio for each of the plurality of picture elements by dividing a normalized input grayscale value included in the input image data by a normalized luminance included in the panel luminance distribution data.

公开(公告)号：US20240008344A1

公开(公告)日：2024-01-04

申请号：US18210855

申请日：2023-06-16

Applicant: Sharp Display Technology Corporation

Inventor： Edward Andrew BOARDMAN ,  Takehiro MURAO

IPC: H10K59/80 ,  H10K59/40

CPC classification number: H10K59/87 ,  H10K2102/311 ,  H10K59/8793 ,  H10K59/40

Abstract: A foldable display device includes a plurality of layers bonded to each other. The plurality of layers includes a light emitting diode substrate layer, a cover window layer including a window film through which light from a first surface of the light emitting diode substrate layer is emitted, a shock-absorber layer located on a second surface of the light emitting diode substrate layer. The second surface is a surface opposite to the first surface. A dimension of the light emitting diode substrate layer measured along a folding axis is larger than a dimension of at least one layer in the plurality of layers.

公开(公告)号：US20240005885A1

公开(公告)日：2024-01-04

申请号：US18141908

申请日：2023-05-01

Applicant: Sharp Display Technology Corporation

Inventor： Masaki UEHATA ,  Yasuki MORI ,  Kohji SAITOH ,  Takayuki MIZUNAGA ,  Kazuya KONDOH ,  Takashi NOJIMA ,  Kazuhisa YOSHIMOTO ,  Kosuke KAWAMOTO ,  Hiroyuki KITO ,  Kazuki NAKAMICHI

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G2310/0202 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2320/0209 ,  G09G2320/0247

Abstract: A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.

公开(公告)号：US11852919B1

公开(公告)日：2023-12-26

申请号：US18219132

申请日：2023-07-07

Applicant: Sharp Display Technology Corporation

Inventor： Motoaki Okitsu

IPC: G02F1/13357 ,  G02F1/1333

CPC classification number: G02F1/133603 ,  G02F1/133382 ,  G02F1/133608

Abstract: A backlight unit includes an LED substrate including a first main surface and a second main surface on a side opposite to the first main surface, a plurality of LED elements arranged on the first main surface, one or more drive IC elements arranged on the second main surface, a chassis disposed on the second main surface side of the LED substrate, and one or more IC element covers each being in direct or indirect contact with a corresponding drive IC element of the one or more drive IC elements. The chassis includes one or more protrusions respectively corresponding to the one or more drive IC elements. Each of the one or more protrusions includes an opening that exposes the corresponding drive IC element when viewed from a normal direction of the second main surface. The IC element cover fits in the protrusion.

公开(公告)号：US20230384637A1

公开(公告)日：2023-11-30

申请号：US18202983

申请日：2023-05-29

Applicant: Sharp Display Technology Corporation

Inventor： Daisuke TERAGAWA

IPC: G02F1/13357

CPC classification number: G02F1/133608 ,  G02F1/133603 ,  G02F1/133605

Abstract: A reflective sheet is attached to a front face of a light source substrate so as to cover a head portion of a fixing member, a bridge across the head portion of the fixing member is formed by providing a slit in the reflective sheet, and the bridge is disposed so as to pass through a central portion of a region surrounded by four light sources around the head portion of the fixing member.