公开(公告)号：US20240258334A1

公开(公告)日：2024-08-01

申请号：US18624525

申请日：2024-04-02

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Hajime KIMURA ,  Atsushi UMEZAKI ,  Shunpei YAMAZAKI

IPC分类号： H01L27/12 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/20 ,  G09G3/36 ,  H01L21/8234 ,  H01L29/24 ,  H01L29/786

CPC分类号： H01L27/124 ,  G02F1/133345 ,  G02F1/1334 ,  G02F1/134309 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/2007 ,  G09G3/36 ,  H01L27/1225 ,  H01L27/127 ,  H01L29/247 ,  H01L29/786 ,  H01L29/78606 ,  H01L29/78693 ,  H01L29/78696 ,  G02F1/133302 ,  G02F1/13345 ,  G09G2300/0426 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2330/021 ,  H01L21/823412

摘要： An object is to improve the drive capability of a semiconductor device. The semiconductor device includes a first transistor and a second transistor. A first terminal of the first transistor is electrically connected to a first wiring. A second terminal of the first transistor is electrically connected to a second wiring. A gate of the second transistor is electrically connected to a third wiring. A first terminal of the second transistor is electrically connected to the third wiring. A second terminal of the second transistor is electrically connected to a gate of the first transistor. A channel region is formed using an oxide semiconductor layer in each of the first transistor and the second transistor. The off-state current of each of the first transistor and the second transistor per channel width of 1 μm is 1 aA or less.

公开(公告)号：US12001111B2

公开(公告)日：2024-06-04

申请号：US17916449

申请日：2021-03-26

申请人： SAINT-GOBAIN GLASS FRANCE

发明人： Frédéric Mondiot

IPC分类号： G02F1/137 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1343

CPC分类号： G02F1/13756 ,  G02F1/13345 ,  G02F1/134309 ,  G02F1/13775 ,  G02F1/133531 ,  G02F2202/04

摘要： A device having variable scattering by liquid crystals includes a stack with a first electrode, an electroactive layer with liquid crystals being stabilized by the polymeric network, and a second electrode. The material exhibits, from a temperature referred to as T1, a mesophase referred to as P. At a temperature T′ greater than or equal to T1, the stack is capable of exhibiting at least three stable and reversible scattering states in the visible range and a variable color.

公开(公告)号：US11953777B2

公开(公告)日：2024-04-09

申请号：US17622790

申请日：2021-12-15

申请人： WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Wenlong Ye ,  Rui He ,  Wei Cheng

IPC分类号： G02F1/1333 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

CPC分类号： G02F1/133528 ,  G02F1/13345 ,  G02F1/1337 ,  G02F1/134309

摘要： The present application discloses a display module and a display device. The display module includes a light grating assembly. The light grating assembly includes alternately arranged first regions and second regions, and liquid crystal molecules and dye molecules distributed in the first regions and the second regions. Arrangement of the liquid crystal molecules and the dye molecules are controlled to make the first regions light-transmissive and the second regions light-transmissive under a first mode and not light-transmissive under a second mode to form alternately light and dark stripes under the second mode.

公开(公告)号：US11852814B2

公开(公告)日：2023-12-26

申请号：US16810471

申请日：2020-03-05

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Yusufu Njoni Bamaxam Sulai ,  Gang Li ,  Ying Geng ,  Brian Wheelwright ,  Jacques Gollier ,  Babak Amirsolaimani ,  Weichuan Gao

IPC分类号： G02B3/08 ,  G02B27/01 ,  G02B5/02 ,  H04N9/31 ,  G02B5/18 ,  G02B5/30 ,  G02B27/10 ,  G02B27/28 ,  G02F1/1334 ,  G02F1/137

CPC分类号： G02B27/0172 ,  G02B3/08 ,  G02B5/0289 ,  G02B5/1819 ,  G02B5/3025 ,  G02B27/0176 ,  G02B27/10 ,  G02B27/106 ,  G02B27/283 ,  G02F1/137 ,  G02F1/1334 ,  H04N9/3152 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02F1/13345

摘要： A display device includes an optical diffuser configured to, in response to receiving image light, output diffused image light having a same polarization as the image light. The optical diffuser is also configured to transmit ambient light. The display device also includes an optical assembly that includes a substrate, a reflector coupled to the substrate, and a beam splitter coupled to the substrate. The optical assembly is configured to transmit the diffused image light at a first optical power by reflecting the diffused image light at the reflector and at the beam splitter and to transmit the transmitted ambient light at a second optical power that is less than the first optical power without reflection at the reflector or the beam splitter. A method for transmitting light through the display device is also disclosed.

公开(公告)号：US20230408857A1

公开(公告)日：2023-12-21

申请号：US18330486

申请日：2023-06-07

申请人： PEKING UNIVERSITY

发明人： Huai YANG ,  Xiao WANG ,  Lanying ZHANG

IPC分类号： G02F1/1334 ,  G02F1/137 ,  G02F1/1341 ,  C09K19/54

CPC分类号： G02F1/13345 ,  G02F1/137 ,  G02F1/1341 ,  C09K19/544 ,  G02F2203/48

摘要： A liquid crystal/polymer composite electrically controlled dimming film is provided, including a liquid crystal material, a polymer matrix, and two layers of conductive substrates. The polymer matrix is sandwiched between the two layers of conductive substrates, and the polymer matrix has a porous microstructure. The liquid crystal material is dispersed in the polymer matrix to form liquid crystal microdroplets, and the liquid crystal microdroplets have vertically oriented polymer networks. The liquid crystal/polymer composite electrically controlled dimming film has a unique composite microstructure. In this composite microstructure, the polymer matrix of the porous microstructure gives the film with good mechanical processing performance. In addition, the vertically oriented polymer networks in the liquid crystal microdroplets further reduces the orientation difficulty of liquid crystal molecules, which is conducive to reducing the driving voltage of the liquid crystal/polymer composite electrically controlled dimming film, and is suitable for large area processing and production.

公开(公告)号：US20230185146A1

公开(公告)日：2023-06-15

申请号：US17623900

申请日：2021-12-20

申请人： WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Xindong MEI ,  Rui HE ,  Wei CHENG ,  Wenlong YE

IPC分类号： G02F1/137 ,  G02F1/1335 ,  G02F1/1334 ,  G02F1/1337

CPC分类号： G02F1/137 ,  G02F1/133531 ,  G02F1/13345 ,  G02F1/1337 ,  G02F2203/48 ,  G02F2202/28 ,  G02F2203/01

摘要： A privacy film and a display device are provided. The privacy film comprises a liquid crystal dimming cell and a first polarizer. The liquid crystal dimming cell comprises two opposed substrates and a liquid crystal layer sandwiched between the two substrates. The liquid crystal layer comprises a plurality of liquid crystal molecules, and the plurality of liquid crystal molecules have the same fixed orientation angle, and an orthogonal projection of long axes of the liquid crystal molecules on the first substrate is perpendicular to an absorption axis of the first polarizer. As such, the brightness of the display screen will not be affected when looking up from the front, and the privacy-image protection effect for decreasing the brightness of the display screen when looking up from the side is achieved.

公开(公告)号：US11662617B2

公开(公告)日：2023-05-30

申请号：US17057674

申请日：2020-08-26

申请人： WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Xindong Mei ,  Shaojun Hou ,  Chao Wang ,  Guanghui Liu ,  He Jiang ,  Quan Tang

IPC分类号： G02F1/1333 ,  G06V10/141 ,  G06V40/13 ,  G06V10/145 ,  F21V8/00 ,  G02F1/1334

CPC分类号： G02F1/13338 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G06V10/141 ,  G06V10/145 ,  G06V40/1318 ,  G02F1/13345

摘要： A display panel is provided. The display panel comprises a display screen, a first backlight module, a second backlight module, and a fingerprint sensor, wherein the second backlight module has a fingerprint identification mode and a display mode. In the fingerprint identification mode, light reaches the fingerprint sensor through the second backlight module for fingerprint identification, and in the display mode, the first backlight module and the second backlight module provide uniform backlight to the display screen, thus realizing compatibility of functions of under-screen fingerprint identification and display.

公开(公告)号：US20240184157A1

公开(公告)日：2024-06-06

申请号：US18516863

申请日：2023-11-21

申请人： Meta Platforms Technologies, LLC

发明人： Xi WU ,  Nicholas John DIORIO, JR. ,  Gareth John VALENTINE ,  Kai-Han CHANG ,  Chenrun FENG ,  Afsoon JAMALI ,  Francis Lawrence LEARD ,  Jasmine Soria SEARS ,  Olga Vladimirovna BARYKINA-TASSA

IPC分类号： G02F1/1334 ,  G02F1/1343

CPC分类号： G02F1/13345 ,  G02F1/134309

摘要： An optical device includes a first set of one or more electrodes, a second set of one or more electrodes distinct and separate from the first set of one or more electrodes, and a medium that includes liquid crystal physical gel. The medium is located between the first set of one or more electrodes and the second set of one or more electrodes. The optical device may operate as an optical dimming device, which may be used in head-mounted display devices or as dimmable windows or shutters.

公开(公告)号：US20240069369A1

公开(公告)日：2024-02-29

申请号：US17623334

申请日：2021-12-22

申请人： WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Rui HE ,  Xindong MEI ,  Wenlong YE ,  Qian DENG ,  Wei CHENG

IPC分类号： G02F1/13 ,  G02F1/1334 ,  G02F1/1335

CPC分类号： G02F1/1323 ,  G02F1/13345 ,  G02F1/133528

摘要： A display device and a dimming device are provided. A dimming layer is located between a first polarizer and a second polarizer whose transmission axes are parallel to each other. When the display device is in a first display mode, long axes of the liquid crystal molecules distributed in the first polymer network are arranged along the second direction, and long axis of the liquid crystal molecules distributed in the second polymer network are arranged along the third direction. The third direction and the second direction respectively point to opposite sides of a normal line of the first polarizer.

公开(公告)号：US20240061284A1

公开(公告)日：2024-02-22

申请号：US18228018

申请日：2023-07-31

申请人： Sharp Display Technology Corporation

发明人： Chiaki MINARI ,  Naru USUKURA ,  Ryuzo YUKI

IPC分类号： G02F1/133 ,  G02F1/1334 ,  G02F1/137

CPC分类号： G02F1/13312 ,  G02F1/13345 ,  G02F1/137 ,  G02F2202/04 ,  G02F2203/02

摘要： A display device includes a display panel and a control unit. The display panel includes a first substrate, a light modulation layer configured to switch between transmissive display and non-transmissive display, and a second substrate in this order, and further includes an optical sensor configured to detect a luminance of light incident from a first space located on one main surface side of the display panel and from a second space located on the other main surface side of the display panel. The control unit calculates, based on the luminance, a relationship between brightness of the first space and brightness of the second space as a numerical value and switches display of the light modulation layer based on the numerical value.