公开(公告)号：US20240160052A1

公开(公告)日：2024-05-16

申请号：US18379427

申请日：2023-10-12

Applicant: Sharp Display Technology Corporation

Inventor： Koji MURATA ,  Junichi MASUDA ,  Shugo YAGI ,  Akira HIRAI ,  Hiroshi TSUCHIYA ,  Takashi SATOH ,  Akira SAKAI ,  Kiyoshi MINOURA

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/1323 ,  G02F1/133528 ,  G02F1/1347

Abstract: A viewing angle-controlling liquid crystal panel sequentially includes a first polarizing plate; a first liquid crystal panel; a second polarizing plate; a second liquid crystal panel; and a third polarizing plate, wherein an azimuthal angle φP1 of the absorption axis of the first polarizing plate, an azimuthal angle φ1 of a director of liquid crystal molecules near the first substrate and an azimuthal angle φ2 of a director of liquid crystal molecules near the second substrate in the first liquid crystal panel, an azimuthal angle φP2 of the absorption axis of the second polarizing plate, an azimuthal angle φ3 of a director of liquid crystal molecules near the third substrate and an azimuthal angle φ4 of a director of liquid crystal molecules near the fourth substrate in the second liquid crystal panel, and an azimuthal angle φP3 of the absorption axis of the third polarizing plate satisfy specific formulas.

公开(公告)号：US20230333402A1

公开(公告)日：2023-10-19

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 ,  G02F1/13363 ,  G02F1/1335 ,  G02F1/1347

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

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：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.

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.

公开(公告)号：US20220382099A1

公开(公告)日：2022-12-01

申请号：US17752574

申请日：2022-05-24

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Kiyoshi MINOURA ,  Takashi SATOH ,  Shunsuke NOICHI ,  Yasuhiro SUGITA ,  Chiaki MINARI

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/041 ,  G06F3/044

Abstract: An in-cell touch panel device includes a first substrate, a plurality of color filters formed on an upper layer with respect to the first substrate and including a green color filter, a transmitter electrode formed on an upper layer with respect to the plurality of color filters, a receiver electrode formed on a lower layer with respect to the plurality of color filters, and a second substrate including a pixel electrode disposed on the second substrate. The transmitter electrode includes a gap portion formed in a portion overlapping the receiver electrode in a plan view and in a portion overlapping the green color filter in a plan view.

公开(公告)号：US20230375889A1

公开(公告)日：2023-11-23

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

CPC classification number: G02F1/1368 ,  G02F1/136222 ,  G02F1/136227 ,  G02F1/136209

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.

公开(公告)号：US20230314868A1

公开(公告)日：2023-10-05

申请号：US18127549

申请日：2023-03-28

Applicant: Sharp Display Technology Corporation

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

IPC: G02F1/1335

CPC classification number: G02F1/133528

Abstract: Provided is a liquid crystal display device in which reflection and light leakage from oblique directions are reduced or prevented. The liquid crystal display device includes, sequentially in the following order from a back surface side: a first polarizer; a liquid crystal panel; a second polarizer; a first retardation layer; and a third polarizer, wherein light transmitted in an oblique direction between the second polarizer and the third polarizer is elliptically polarized light.

公开(公告)号：US20230176424A1

公开(公告)日：2023-06-08

申请号：US18072105

申请日：2022-11-30

Applicant: Sharp Display Technology Corporation

Inventor： Daisuke MINAMI ,  Hiroaki ASAGI ,  Kiyoshi MINOURA

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/29 ,  G02F1/1337 ,  G02B27/01 ,  G02F1/137

CPC classification number: G02F1/133638 ,  G02F1/133541 ,  G02F1/134309 ,  G02F1/133637 ,  G02F1/294 ,  G02F1/133711 ,  G02B27/0172 ,  G02F1/13712 ,  G02F1/133526

Abstract: Provided is an optical element including: a liquid crystal cell including a first substrate, a liquid crystal layer, and a second substrate; and a quarter-wave film. The liquid crystal layer contains liquid crystal molecules twist-aligned. The liquid crystal cell includes electrodes. The electrodes are disposed to enable switching between a first state and a second state by application of voltage to the liquid crystal layer. The switching between the first state and the second state controls a polarization state of light incident on the liquid crystal cell. Circularly polarized light incident on the liquid crystal cell is converted to first linearly polarized light in the first state while converted to second linearly polarized light in the second state. Linearly polarized light incident on the liquid crystal cell is converted to first circularly polarized light in the first state while converted to second circularly polarized light in the second state.

公开(公告)号：US20230134662A1

公开(公告)日：2023-05-04

申请号：US17969839

申请日：2022-10-20

Applicant: Sharp Display Technology Corporation

Inventor： Naru USUKURA ,  Hiroaki ASAGI ,  Yasuhiro HASEBA ,  Kiyoshi MINOURA

IPC: G02F1/29 ,  G06F1/16

Abstract: Provided is a liquid crystal lens including: a first substrate; a second substrate facing the first substrate; and a liquid crystal layer held between the first substrate and the second substrate and containing liquid crystal molecules. The first substrate includes a Fresnel lens and a first electrode sequentially toward the liquid crystal layer. The second substrate includes a second electrode. The Fresnel lens includes a Fresnel-shaped part including annular lens surfaces in a concentric circle pattern and a flat part including a flat surface that extends in a radial direction of the concentric circle and intersects at least one of the annular lens surfaces. The annular lens surfaces are on a liquid crystal layer-facing surface of the Fresnel-shaped part and defines an uneven surface. The flat surface is on the liquid crystal layer-facing surface of the flat part.

公开(公告)号：US20220382098A1

公开(公告)日：2022-12-01

申请号：US17752561

申请日：2022-05-24

Applicant: Sharp Display Technology Corporation

Inventor： Kazutoshi KIDA ,  Kiyoshi MINOURA ,  Takashi SATOH ,  Shunsuke NOICHI ,  Yasuhiro SUGITA ,  Chiaki MINARI

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1362 ,  G06F3/041 ,  G06F3/044

Abstract: An in-cell touch panel device includes a first substrate, a plurality of color filters formed on a layer on an opposite side of a touch surface with respect to the first substrate, a transmitter electrode formed on a layer on an opposite side of the touch surface with respect to the plurality of color filters, a receiver electrode formed on a layer closer to the touch surface side with respect to the plurality of color filters, and a second substrate, a pixel electrode being disposed on the second substrate. The transmitter electrode includes a gap portion formed in a portion overlapping a space between adjacent ones of the plurality of color filters in a plan view.