公开(公告)号：US20240402545A1

公开(公告)日：2024-12-05

申请号：US18797922

申请日：2024-08-08

Applicant: TOPPAN HOLDINGS INC.

Inventor： Tetsushi YOSHIDA

IPC: G02F1/1343 ,  E06B9/24 ,  G02F1/1334 ,  G02F1/137

Abstract: A light control device includes a sheet unit provided with a light control sheet, and a control unit that controls an application of voltage to the sheet unit. The processing executed by the control unit includes setting the light control sheet to a first state in which visible light is reflected by controlling a voltage between transparent electrode layers to a first voltage, setting the light control sheet to a second state in which visible light is scattered by controlling the voltage between the transparent electrode layers to a second voltage, and setting the light control sheet to a third state in which visible light is transmitted by controlling the voltage between the transparent electrode layers to a third voltage.

公开(公告)号：US20240393638A1

公开(公告)日：2024-11-28

申请号：US18660211

申请日：2024-05-09

Applicant: Coretronic Corporation

Inventor： Jing-Yu Wu ,  Chung-Yang Fang ,  Ping-Yen Chen ,  Chia-Hua Chen

IPC: G02F1/1335 ,  G02F1/13363 ,  G02F1/137 ,  H01L25/075 ,  H01L33/60

Abstract: A display panel including a substrate, a light emitting structure layer, a C-plate, and a first bandpass polarizing reflective layer is provided. The light emitting structure layer is disposed on the substrate and includes first light emitting structures. The first light emitting structures have a first peak emission wavelength. The C-plate is disposed on a side of the light emitting structure layer away from the substrate. The first bandpass polarizing reflective layer is disposed between the light emitting structure layer and the C-plate and overlapped with the light emitting structure layer. A reflectance of the first bandpass polarizing reflective layer for light with a wavelength in a first wavelength range is greater than 20%. The first wavelength range is the first peak emission wavelength±20 nm.

公开(公告)号：US20240385491A1

公开(公告)日：2024-11-21

申请号：US18787388

申请日：2024-07-29

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Kanghee WON ,  Young KIM ,  Jungkwuen AN ,  Hongseok LEE

IPC: G02F1/29 ,  G02B27/00 ,  G02B30/00 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/137 ,  G03H1/00 ,  G03H1/22

Abstract: A beam deflector includes a first electrode layer including a plurality of line electrodes extending in a first direction and arranged parallel to each other in a second direction crossing the first direction; a second electrode layer separated from the first electrode layer by a predetermined distance to face the first electrode layer; and a deflection layer between the first electrode layer and the second electrode layer and having a plurality of optically anisotropic molecules controlled by an electric field formed between the first electrode layer and the second electrode layer. Each of the optically anisotropic molecules has an ellipse shape having a major axis and a minor axis, wherein the major axis is arranged to head for the first direction.

公开(公告)号：US12147141B2

公开(公告)日：2024-11-19

申请号：US17842318

申请日：2022-06-16

Applicant: HANWANG TECHNOLOGY CO., LTD.

Inventor： Yao-Dong Ma ,  Lilya Darlene Ma ,  Blair Ma

IPC: G02F1/137 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1368

Abstract: The present invention relates to a TFT liquid crystal display, more specifically, to a cholesteric liquid crystal display employing both field-induced nematic vertical alignment texture and field-induced eddy alignment texture as video astable states and cholesteric planer texture and focal conic texture as power-free bistable states. Thus, the display provides not only video speed motion pictures with unlimited grayscale but also excellent static images.

公开(公告)号：US12147124B2

公开(公告)日：2024-11-19

申请号：US18378841

申请日：2023-10-11

Applicant: Sharp Display Technology Corporation

Inventor： Shinichi Terashita ,  Kouichi Watanabe ,  Fumikazu Shimoshikiryoh

IPC: G02F1/13363 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/139 ,  G02F1/137

Abstract: A liquid crystal display device includes a first substrate, a second substrate disposed on a viewer side relative to the first substrate, a liquid crystal layer provided between the first substrate and the second substrate, a polarizer disposed on the viewer side relative to the liquid crystal layer, and a phase difference layer disposed between the polarizer and the liquid crystal layer, and also includes a plurality of pixels arrayed in a matrix shape. The first substrate includes a reflective layer that reflects light, a first electrode and a second electrode that can generate a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film in contact with the liquid crystal layer. The second substrate includes a second horizontal alignment film in contact with the liquid crystal layer. The liquid crystal layer takes a twist alignment when no voltage is applied.

公开(公告)号：US20240377691A1

公开(公告)日：2024-11-14

申请号：US18655137

申请日：2024-05-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Jasmine Soria SEARS ,  Francis Lawrence LEARD ,  Olga Vladimirovna BARYKINA-TASSA ,  Gareth John VALENTINE ,  Xi WU

IPC: G02F1/137 ,  G02B5/20 ,  G02B5/28 ,  G02B27/01 ,  G02F1/1335

Abstract: An optical device includes an optically dimmable filter for providing a first set of scattering properties while the optically dimmable filter is in a first state and providing a second set of scattering properties while the first optically dimmable filter is in a second state. The optically dimmable filter also includes (i) a substrate with a plurality of surface features characterized by a first refractive index; (ii) a first set of one or more electrodes; (iii) a second set of one or more electrodes; and (iv) a medium having a second refractive index while the first optically dimmable filter is in a first state and a third refractive index distinct from the second refractive index while the first optically dimmable filter is in the second state. The first refractive index is closer to the second refractive index than the third refractive index.

公开(公告)号：US12140847B2

公开(公告)日：2024-11-12

申请号：US17390063

申请日：2021-08-03

Applicant: RealD Spark, LLC

Inventor： Jonathan Harrold ,  Robert A. Ramsey ,  Michael G. Robinson ,  Graham J. Woodgate

IPC: G02F1/137 ,  G02F1/13 ,  G02F1/1335

Abstract: A control system for a switchable privacy display apparatus comprises sensors arranged to determine device location, operating environment, document type, application type and further comprises a privacy policy for control of privacy images. High image visibility is provided for public mode operation while in privacy mode a high visual security level may be obtained by means of control of image luminance, contrast and white point in response to the privacy policy.

公开(公告)号：US12140846B2

公开(公告)日：2024-11-12

申请号：US18217715

申请日：2023-07-03

Applicant: Ibrahim Abdulhalim

Inventor： Ibrahim Abdulhalim

IPC: G02F1/137 ,  E06B3/67 ,  E06B9/24 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343

Abstract: A fast spectral modulator for modulating intensity, phase, and spectrum of light beam, is described in the present invention. The spectral modulator comprises at least one liquid crystal composite and a photonic structure. Said at least one liquid crystal composite is made of a liquid crystal and porous microparticles infiltrated within said liquid crystal, wherein: (i) said porous microparticles have an average refractive index approximately equals to one of the liquid crystal principal refractive indices; and (ii) concentration of said microparticles in said composite is less than 0.1% for avoiding significant light scattering.

公开(公告)号：US12134725B2

公开(公告)日：2024-11-05

申请号：US17619971

申请日：2020-06-15

Applicant: Merck Patent GmbH

Inventor： Christian Schoenefeld ,  Michael Junge ,  Mark Goebel ,  Raphael Lisicki ,  Kevin Kaiser

IPC: C09K19/58 ,  C09K19/04 ,  C09K19/12 ,  C09K19/30 ,  C09K19/60 ,  G02F1/137

Abstract: A light valve that is operable in and electrically switchable between an optically clear and transparent state and an opaque state, wherein one or more polymerisable mesogenic compounds provided in a layer containing a liquid-crystalline medium that comprises one or more mesogenic compounds, one or more chiral compounds, one or more dichroic dyes and the one or more polymerisable mesogenic compounds are subjected to photopolymerisation. Further, a liquid-crystalline medium used in the method, a light valve obtained or respectively obtainable by carrying out the method, and the use of the light valve in mobile devices.

公开(公告)号：US20240361660A1

公开(公告)日：2024-10-31

申请号：US18768072

申请日：2024-07-10

Applicant: TOPPAN HOLDINGS INC.

Inventor： Tetsushi YOSHIDA

IPC: G02F1/137 ,  G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/13756 ,  G02F1/133738 ,  G02F1/13439 ,  G02F1/13706

Abstract: A light control sheet includes a first transparent electrode layer, a second transparent electrode layer, and a light control layer including a liquid crystal composition having positive dielectric anisotropy and including chiral nematic liquid crystals. A control unit of a light control device controls voltage applied between the transparent electrode layers to a first voltage to bring the light control sheet into a first state of reflecting infrared light and transmitting visible light, controls the voltage applied between the transparent electrode layers to a second voltage to bring the light control sheet into a second state of scattering infrared light and visible light, and controls the voltage applied between the transparent electrode layers to a third voltage to bring the light control sheet into a third state of transmitting infrared light and visible light.