公开(公告)号：US11698556B2

公开(公告)日：2023-07-11

申请号：US17715085

申请日：2022-04-07

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Kosuke Nagata ,  Kazutoshi Kida ,  Kazutaka Hanaoka ,  Shinji Shimada ,  Yasuhiro Haseba

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/13 ,  G02F1/1333 ,  G06F3/041 ,  G06F3/044

CPC classification number: G02F1/134372 ,  G02F1/1323 ,  G02F1/13338 ,  G02F1/133345 ,  G02F1/134336 ,  G02F1/134345 ,  G02F1/136286 ,  G06F3/0412 ,  G06F3/0446

Abstract: The liquid crystal display device includes a liquid crystal panel, the liquid crystal panel including sub-pixels and including an active matrix substrate and a counter substrate, the active matrix substrate including a gate line, a first electrode, and a second electrode, the counter substrate including a third electrode, each of the sub-pixels being provided with an optical opening, the third electrode including a linear electrode extending along the gate line, a distance between the linear electrode and the optical opening being less than D/4 and a width of the linear electrode being D/4 or less, wherein a distance between two optical openings adjacent in the direction perpendicular to the extending direction of the gate line is defined as D.

公开(公告)号：US12287548B2

公开(公告)日：2025-04-29

申请号：US18691293

申请日：2021-11-16

Applicant: Sharp Display Technology Corporation

Inventor： Kimiaki Nakamura ,  Masakazu Shibasaki ,  Yasuhiro Haseba ,  Koji Murata

IPC: G02F1/1343 ,  G02F1/133 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1339

Abstract: A display device includes: a plurality of first colored particles contained in a space between a first substrate and a second substrate; a light-emitting portion having a first light-emitting element provided on the first substrate, and a first-light-emitting-element driving circuit provided on the first substrate and configured to drive the first light-emitting element; a first transparent portion disposed in a direction along a main surface of the first substrate with respect to the light-emitting portion; a first electrode provided in the light-emitting portion; and a second electrode provided in the first transparent portion and being nckudestransparent. The display device is capable of switching between a light-transmitting state of the first transparent portion in which the first electrode attracts the plurality of first colored particles, and a light-blocking state of the first transparent portion in which the second electrode attracts the plurality of first colored particles.

公开(公告)号：US11852911B2

公开(公告)日：2023-12-26

申请号：US17852411

申请日：2022-06-29

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Yasuhiro Haseba ,  Kazutaka Hanaoka ,  Kimiaki Nakamura ,  Mariko Honda ,  Atsuko Kanashima ,  Tadashi Hasegawa ,  Shinji Shimada

IPC: G02F1/1334 ,  G02F1/137 ,  G02F1/1337 ,  G02F1/13357

CPC classification number: G02F1/1334 ,  G02F1/1337 ,  G02F1/13706 ,  G02F1/133603

Abstract: Provided is a liquid crystal display device capable of switching between a transparent state and a scattering state, reducing or preventing a decrease in transmittance in the transparent state, and reducing or preventing a decrease in luminance in the panel central portion in the scattering state. The liquid crystal display device includes, sequentially from its viewing surface side toward its back surface side: a first liquid crystal panel; a light source; and a second liquid crystal panel, the first liquid crystal panel including a polymer dispersed liquid crystal containing a polymer network and liquid crystal components, the light source being configured to irradiate a back surface side main surface of the first liquid crystal panel with light from an oblique direction.

公开(公告)号：US12007640B2

公开(公告)日：2024-06-11

申请号：US18383548

申请日：2023-10-25

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Yasuhiro Haseba ,  Kazutaka Hanaoka ,  Kimiaki Nakamura ,  Mariko Honda ,  Atsuko Kanashima ,  Tadashi Hasegawa ,  Shinji Shimada

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/137

CPC classification number: G02F1/1334 ,  G02F1/133603 ,  G02F1/1337 ,  G02F1/13706

Abstract: Provided is a liquid crystal display device capable of switching between a transparent state and a scattering state, reducing or preventing a decrease in transmittance in the transparent state, and reducing or preventing a decrease in luminance in the panel central portion in the scattering state. The liquid crystal display device includes, sequentially from its viewing surface side toward its back surface side: a first liquid crystal panel; a light source; and a second liquid crystal panel, the first liquid crystal panel including a polymer dispersed liquid crystal containing a polymer network and liquid crystal components, the light source being configured to irradiate a back surface side main surface of the first liquid crystal panel with light from an oblique direction.

公开(公告)号：US11852952B2

公开(公告)日：2023-12-26

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 ,  G02C7/10 ,  G02C7/08

CPC classification number: G02F1/294 ,  G06F1/163 ,  G02C7/083 ,  G02C7/10 ,  G02C2202/20 ,  G02F2201/122 ,  G02F2201/56

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：US11829021B2

公开(公告)日：2023-11-28

申请号：US17579388

申请日：2022-01-19

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Kimiaki Nakamura ,  Mariko Honda ,  Tadashi Hasegawa ,  Kazutaka Hanaoka ,  Yasuhiro Haseba ,  Shinji Shimada ,  Atsuko Kanashima

IPC: G02F1/1334 ,  G02F1/1341 ,  G02F1/1337

CPC classification number: G02F1/13347 ,  G02F1/1341 ,  G02F1/13345 ,  G02F1/133738 ,  G02F1/133788

Abstract: Provided is a polymer dispersed liquid crystal display device including: a pair of substrates including an electrode on at least one substrate; and a composite layer disposed between the pair of substrates. The composite layer includes a liquid crystal component and a polymer network constituted by a cured product of a photopolymerizable liquid crystal compound, and is in a transparent state when no voltage is applied and in a scattering state when a voltage is applied, and the polymer network has a helical structure with a number of turns of from one to less than eight in the composite layer.

公开(公告)号：US20220334438A1

公开(公告)日：2022-10-20

申请号：US17715085

申请日：2022-04-07

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Kosuke Nagata ,  Kazutoshi Kida ,  Kazutaka Hanaoka ,  Shinji Shimada ,  Yasuhiro Haseba

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/13 ,  G06F3/041

Abstract: The liquid crystal display device includes a liquid crystal panel, the liquid crystal panel including sub-pixels and including an active matrix substrate and a counter substrate, the active matrix substrate including a gate line, a first electrode, and a second electrode, the counter substrate including a third electrode, each of the sub-pixels being provided with an optical opening, the third electrode including a linear electrode extending along the gate line, a distance between the linear electrode and the optical opening being less than D/4 and a width of the linear electrode being D/4 or less, wherein a distance between two optical openings adjacent in the direction perpendicular to the extending direction of the gate line is defined as D.