公开(公告)号：US11842023B2

公开(公告)日：2023-12-12

申请号：US17947103

申请日：2022-09-17

Applicant: Sharp Display Technology Corporation

Inventor： Takenori Maruyama ,  Kazutoshi Kida ,  Shinji Yamagishi ,  Takuma Yamamoto ,  Yasuhiro Sugita ,  Hiroshi Fukushima

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0447 ,  G06F3/0412 ,  G06F3/0446 ,  G06F3/041662 ,  G06F2203/04105

Abstract: A touch panel include a cover member, a drive electrode, a pressure detecting electrode, and a position detecting electrode. The pressure detecting electrode and the position detecting electrode are alternately arranged in a first direction. The pressure detecting electrode includes a plurality of pressure detecting sections, arranged side by side in a second direction orthogonal to the first direction, that each independently detect a pressure. The position detecting electrode includes a plurality of position detecting sections, arranged side by side in the second direction, that each independently detect a touched position. The area of a pressure detecting section is larger than the area of a position detecting section.

公开(公告)号：US20230386424A1

公开(公告)日：2023-11-30

申请号：US18144063

申请日：2023-05-05

Applicant: Sharp Display Technology Corporation

Inventor： Yasushi SASAKI ,  Yuhichiroh MURAKAMI ,  Shuji NISHI ,  Takahiro YAMAGUCHI

IPC: G09G3/36

CPC classification number: G09G3/3629 ,  G09G3/3614 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0842 ,  G09G2310/0291 ,  G09G2310/0278 ,  G09G2330/021

Abstract: When binary pixel data is written to a pixel circuit, of an H-level (3V) and a L-level (0V), a voltage of the level indicating the binary pixel data is held at a first node, and a voltage of the inverted level thereof is held at a second node. The first and second nodes are connected to a third node via N-channel transistors, respectively, and first and second selection control signals are supplied to gate terminals of the transistors, respectively. Voltage levels of the first and second selection control signals are periodically switched between 5V indicating the H-level and 0V indicating the L-level in a mutually inverted manner. As a result, the voltage of the first node and the voltage of the second node are alternately selected and applied to a pixel electrode of a display element.

公开(公告)号：US20230384634A1

公开(公告)日：2023-11-30

申请号：US18199882

申请日：2023-05-19

Applicant: Sharp Display Technology Corporation

Inventor： Ryosuke SAIGUSA ,  Akira SAKAI ,  Yuichi KAWAHIRA ,  Masahiro HASEGAWA

IPC: G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/133528 ,  G02F1/13363 ,  G02F1/133562 ,  G02F1/133567 ,  G02F2413/06 ,  G02F2413/02

Abstract: Provided are an optical element that can achieve both color difference control and luminance reduction at an oblique viewing angle, and a liquid crystal display device including the optical element and having excellent display quality. The optical element includes: a first polarizer; a first phase difference layer; a second phase difference layer; and a second polarizer, the first polarizer, the first phase difference layer, the second phase difference layer, and the second polarizer being arranged in the stated order, the first phase difference layer satisfying the formula nx>ny≈nz, the second phase difference layer satisfying the formula nz>nx≈ny, the first polarizer and the second polarizer being linear polarizers, transmission axes of the first polarizer and the second polarizer being parallel to each other, a slow axis of the first phase difference layer being orthogonal to a polarization axis of the first polarizer.

公开(公告)号：US20230333679A1

公开(公告)日：2023-10-19

申请号：US18135041

申请日：2023-04-14

Applicant: Sharp Display Technology Corporation

Inventor： Daisuke SUEHIRO ,  Daiji KITAGAWA ,  Noriyuki TANAKA ,  Tatsuhiko SUYAMA ,  Jin MIYAZAWA ,  Yousuke NAKAMURA

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/04164 ,  G09G3/3655

Abstract: A touch panel display driver includes a source driver circuit, a touch detection circuit, a selector circuit, a register a plurality of source terminals, a plurality of touch detection terminals, and a plurality of selection terminals. The selector circuit electrically connects the source driver circuit to each of the source terminals, electrically connects the touch detection circuit to each of the touch detection terminals, and electrically connects each of the selection terminals to the source driver circuit or the touch detection circuit.

公开(公告)号：US20230323266A1

公开(公告)日：2023-10-12

申请号：US18123209

申请日：2023-03-17

Applicant: Sharp Display Technology Corporation

Inventor： Chihiro TACHINO ,  Takeshi HARA ,  Tomoko TERANISHI ,  Satoshi IHIDA

IPC: C12N5/00 ,  C12M1/12

CPC classification number: C12M25/14 ,  C12N5/0068

Abstract: A cell culture substrate includes a base, a first segment disposed on the base and occupying a part of one surface of the cell culture substrate, and a second segment disposed on the base and occupying another part of the one surface. The second segment is formed of a metal material and thus has a relatively higher surface free energy than the first segment formed of an inorganic material. The second segment is disposed such that a percentage of an area of the second segment in a total area of the first segment and the second segment increases in a gradation direction (first direction) along the one surface.

公开(公告)号：US20230314885A1

公开(公告)日：2023-10-05

申请号：US18126338

申请日：2023-03-24

Applicant: Sharp Display Technology Corporation

Inventor： Yasuhiro HASEBA ,  Takako KOIDE

IPC: G02F1/1362 ,  C09K19/30 ,  C09K19/06

CPC classification number: G02F1/136222 ,  C09K19/3003 ,  C09K19/062 ,  C09K19/3098 ,  C09K2019/3004

Abstract: A liquid crystal display device includes, in sequence, a backlight, a first substrate including a color filter layer, a liquid crystal layer containing a liquid crystal composition, and a second substrate. The liquid crystal composition contains a liquid crystal compound having a phenyl group and a conjugated bond group. The phenyl group has a halogen atom substituted for at least one hydrogen atom. The conjugated bond group is conjugated with the phenyl group to form a continuous conjugated system.

公开(公告)号：US11774819B2

公开(公告)日：2023-10-03

申请号：US18095821

申请日：2023-01-11

Applicant: Sharp Display Technology Corporation

Inventor： Tadayoshi Miyamoto ,  Yoshitaka Koyama ,  Yoshinobu Nakamura ,  Toshihiro Kaneko

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

CPC classification number: G02F1/136286 ,  G02F1/1368 ,  H01L27/124 ,  H01L27/1225

Abstract: An active matrix substrate includes, in each pixel region, a pixel TFT of an oxide semiconductor layer having source and drain regions, a first insulating layer disposed on top of the oxide semiconductor layer, an extraction electrode, disposed on top of the first insulating layer, that includes a transparent conductive film, and a pixel electrode connected to the extraction electrode. The first insulating layer includes first and second contact holes located above the source and drain regions, respectively. Part of a source bus line overlaps part of the source region and is connected to the source region via the first contact hole. The extraction electrode is connected to the drain region via the second contact hole. Shapes of bottoms of the first and second contact holes are different from each other, and the shape of the bottom of the second contact hole includes two orthogonal sides.

公开(公告)号：US20230305175A1

公开(公告)日：2023-09-28

申请号：US18125688

申请日：2023-03-23

Applicant: Sharp Display Technology Corporation

Inventor： Kohzoh TAKAHASHI

IPC: G01T1/24

CPC classification number: G01T1/247

Abstract: An X-ray image capturing apparatus includes a photoelectric conversion element, a TFT, a gate drive circuit, a control circuit, and a filter section. The TFT is connected to the photoelectric conversion element. The gate drive circuit supplies a gate signal to a gate electrode of the TFT. The control circuit supplies a control signal to the gate drive circuit. The filter section attenuates a component of the gate signal or the control signal that has a frequency lower than a prescribed frequency.

公开(公告)号：US20230296932A1

公开(公告)日：2023-09-21

申请号：US18122725

申请日：2023-03-17

Applicant: Sharp Display Technology Corporation

Inventor： Koji MURATA ,  Hiroshi TSUCHIYA ,  Atsuko KANASHIMA ,  Takashi SATOH ,  Shinji SHIMADA

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/1323 ,  G02F1/133531 ,  G02F1/134372 ,  G02F1/134363

Abstract: Provided is a display device including a backlight; a first liquid crystal panel; a display panel; and a second liquid crystal panel. The first liquid crystal panel includes a first substrate, a first liquid crystal layer containing first liquid crystal molecules, and a second substrate. The second liquid crystal panel includes a third substrate, a second liquid crystal layer containing second liquid crystal molecules, and a fourth substrate. The display device satisfies the following Formula (1):


|φ3−φ1|≥50°  Formula (1)

wherein φ1 represents an azimuthal angle of a director of the first liquid crystal molecules near the first substrate with no voltage applied to the first liquid crystal layer, and φ3 represents an azimuthal angle of a director of the second liquid crystal molecules near the third substrate with no voltage applied to the second liquid crystal layer.

公开(公告)号：US20230280632A1

公开(公告)日：2023-09-07

申请号：US18110810

申请日：2023-02-16

Applicant: Sharp Display Technology Corporation

Inventor： Daisuke MINAMI ,  Hiroaki ASAGI ,  Kiyoshi MINOURA

IPC: G02F1/29

CPC classification number: G02F1/294

Abstract: Provided is an optical element including: a first liquid crystal cell including first liquid crystal molecules and a first electrode; and a second liquid crystal cell including second liquid crystal molecules and a second electrode, the first and second electrodes disposed to enable switching between a first state twist-aligning the second liquid crystal molecules and vertically aligning the first liquid crystal molecules and a second state twist-aligning the first liquid crystal molecules and vertically aligning the second liquid crystal molecules. Alignment directions of the second liquid crystal molecules near a third substrate and the second liquid crystal molecules near a fourth substrate in the first state are respectively at azimuthal angles resulting from a ¼ turn in the same direction of azimuthal angles of alignment directions of the first liquid crystal molecules near the first substrate and the first liquid crystal molecules near the second substrate in the second state.