Microencapsulated Or Polymer Dispersed Liquid Crystal Patents (Class 349/86)
-
Patent number: 12253699Abstract: According to one embodiment, a liquid crystal optical element including a first substrate including a first transparent substrate, a first alignment film, and a first liquid crystal layer which includes first cholesteric liquid crystals, and which reflects part of light incident through the first transparent substrate toward the first transparent substrate, a second substrate including a second transparent substrate, a second alignment film, and a second liquid crystal layer which includes second cholesteric liquid crystals, and which reflects part of light transmitted through the first liquid crystal layer toward the first transparent substrate, and a transparent adhesive layer which adheres the first substrate and the second substrate.Type: GrantFiled: February 15, 2024Date of Patent: March 18, 2025Assignee: Japan Display Inc.Inventors: Koichi Igeta, Shinichiro Oka, Yasushi Tomioka, Junji Kobashi
-
Patent number: 12253767Abstract: Provided are a method for manufacturing a PDLC membrane electrode, a negative pressure platform, and a PDLC membrane. The method for manufacturing a PDLC membrane electrode includes the following steps: placing a PDLC membrane on a negative pressure platform with a side to be processed facing upwards, and making a liquid crystal activation area of the side to be processed of the PDLC membrane coincide with a transparent area of the negative pressure platform, and other area coincides with a main body area of the negative pressure platform; activating a liquid crystal layer of the PDLC membrane; cutting and tearing off, according to a half-cut area, a PET layer and an electric conduction layer located on the liquid crystal layer, and sweeping or tearing off the activated liquid crystal layer together to expose the electric conduction layer below the liquid crystal layer to form a corresponding electrode.Type: GrantFiled: February 4, 2021Date of Patent: March 18, 2025Assignee: SHANGHAI LONGSHENG PHOTOELECTRIC NEW MATERIAL CO., LTD.Inventors: Yung-Lung Wu, Pin-Hung Lee, Rui Sun
-
Patent number: 12217716Abstract: A method for driving a cholesteric liquid crystal display, wherein the method includes steps as follows: Firstly, a reflective cholesteric liquid crystal panel including a pixel array composed of a plurality of pixel units is provided. Next, a scanning operation is performed on the pixel array. The scanning operation includes steps as follows: A continuous fixed pulse is applied to at least one of the plurality of pixel units lasting for a time period, so as to make a cholesterol liquid crystal layer of the at least one of the plurality of pixel units having a uniform lying helix (ULH) phase; and a maintaining pulse that is smaller than the continuous fixed pulse is applied to the at least one of the plurality of pixel units.Type: GrantFiled: March 14, 2024Date of Patent: February 4, 2025Assignee: AUO CORPORATIONInventors: Heng-Yi Tseng, Yi-Han Tseng, Yi-Jyun Ke, Kun-Cheng Tien
-
Patent number: 12204221Abstract: A high-brightness handwriting liquid crystal device is provided. The device includes a substrate, a first base layer disposed on the substrate, a first conductive layer disposed on a side of the first base layer away from the substrate, a second conductive layer opposite to the first conductive layer, a liquid crystal layer disposed between the first conductive layer and the second conductive layer, and a second base layer disposed on a side of the second conductive layer away from the liquid crystal layer. The liquid crystal layer includes a cholesteric liquid crystal mixture and a plurality of spacers, wherein a plurality of lattices is defined by the plurality of spacers, and the cholesteric liquid crystal mixture is filled in the plurality of lattices.Type: GrantFiled: June 3, 2023Date of Patent: January 21, 2025Assignee: WICUE USA INC.Inventor: Fenghua Li
-
Patent number: 12162247Abstract: A composite pane includes a functional element having electrically controllable optical properties, includes an inner pane including an inner and outer side and an outer pane including an inner and outer side, a thermoplastic intermediate layer, which joins the inner side) of the inner pane to the inner side of the outer pane, a functional element embedded in the thermoplastic intermediate layer and having electrically controllable optical properties at least including a multilayer film containing, arranged surface-to-surface one above the other in this sequence, a first carrier film, a first surface electrode, an active layer, a second surface electrode, and a second carrier film. The active layer includes a matrix and an active substance, and the concentration of the active substance varies over the area of the functional element.Type: GrantFiled: September 19, 2019Date of Patent: December 10, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Marcel Klein, Jefferson Do Rosario
-
Patent number: 12136367Abstract: The invention relates to a system for displaying information, comprising: an emission device arranged to emit light so as to display information to a user, the emission device being adapted to emit the light in a pulsed manner so that the intensity of the light varies between a high value and a low value, a selective viewing device comprising a panel, the panel being adapted so that the user can view the light which is emitted by the emission device through that panel so as to visually perceive the information being displayed, the panel having a variable transparency which can be varied between a state of high transparency and a state of low transparency, the system being adapted to synchronize the emission device and the selective viewing device so that the states of the emission device emitting light at a high-intensity value and the states of the panel of the selective viewing device of high transparency overlap in time, the system further comprising a photoelectric conversion means arranged to convert ambType: GrantFiled: September 6, 2019Date of Patent: November 5, 2024Assignee: MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.Inventor: Moritz Kreysing
-
Patent number: 12124149Abstract: An electrophoretic display device, including a substrate, a first conductive layer, multiple insulating patterns, a second conductive layer, an adhesive layer, and an electrophoretic display film, is provided. The first conductive layer is disposed on the substrate, and includes multiple background patterns and multiple signal lines. Each of the signal lines is located between two adjacent background patterns. Each of the insulating patterns covers each of the signal lines and bridges to the two adjacent background patterns. The second conductive layer includes multiple conductive patterns. Each of the conductive patterns covers the each of the insulating patterns and bridges to the two adjacent background patterns. The adhesive layer is disposed on and in direct contact with the background pattern and the second conductive layer. The electrophoretic display film is disposed above the adhesive layer.Type: GrantFiled: July 8, 2021Date of Patent: October 22, 2024Assignee: E Ink Holdings Inc.Inventors: Hsiao-Lung Cheng, Pei-Lin Tien, I-Shin Lo, Chi-Mao Hung
-
Patent number: 12115756Abstract: A multilayer film with electrically switchable optical properties, includes arranged areally in the following order a first carrier film, a first electrically conductive layer, an active layer, a second electrically conductive layer, and a second carrier film. The multilayer film has within its area at least one first cutout and the at least one first cutout protrudes in the form of a through-hole through all layers of the multilayer film, the first cutout is filled with an electrically conductive filler compound, which electrically conductingly contacts the first electrically conductive layer within the first cutout, and a first busbar electrically conductingly contacts the electrically conducting filler compound.Type: GrantFiled: June 6, 2019Date of Patent: October 15, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Marcel Klein, Sebastian Schurse, Valentin Schulz
-
Patent number: 12085746Abstract: Provided are a backlight unit and a liquid crystal display device including the backlight unit, the backlight unit being capable of switching between viewing angles in the liquid crystal display device and having a configuration in which the brightness values of emitted light on the “+” side and the “?” side at a polar angle with respect to the normal line are symmetric to each other.Type: GrantFiled: January 25, 2022Date of Patent: September 10, 2024Assignee: FUJIFILM CorporationInventors: Fumitake Mitobe, Keisuke Kodama, Katsumi Sasata, Yukito Saitoh
-
Patent number: 12061388Abstract: An integrated stereoscopic image display device is provided. The integrated stereoscopic image display device includes a display, a lens array layer, and a baffle layer. The display has a display surface and an image computing unit, and the lens array layer is disposed adjacent to the display surface. The baffle layer includes a plurality of baffles that extend along a first inclined direction, and each of the baffles has a rotation angle. The baffles are inclined to the display surface and extend along a second inclined direction, and each of the baffles has an inclination angle.Type: GrantFiled: September 26, 2022Date of Patent: August 13, 2024Assignee: LIXEL INC.Inventors: Chih-Hung Ting, Wei-An Chen, Hsin-You Hou, Chih-Wei Shih, Kuan-Yu Chen
-
Patent number: 12063726Abstract: A lighting unit having a light-emitting diode matrix and a controllable power source, in particular for a headlight. The light-emitting diode matrix is equipped with at least one first supply connection, a number m of first switches which have a first connection that is connected to the first supply connection, at least one second supply connection, a number n of second switches which have a second connection that is connected to the second supply connection, a number of m*n inorganic light-emitting diodes, a first connection of which is connected to a second connection of one of the first switches and a second connection of which is connected to a first connection of one of the second switches.Type: GrantFiled: July 28, 2022Date of Patent: August 13, 2024Assignee: Hella GmbH & Co. KGaAInventors: Christoph Foecking, Dieter Nietfeld
-
Patent number: 12007652Abstract: A switchable optical assembly comprises a switchable waveplate configured to be electrically activated and deactivated to selectively alter the polarization state of light incident thereon. The switchable waveplate comprises first and second surfaces and a first liquid crystal layer disposed between the first and second surfaces. The first liquid crystal layer comprises a plurality of liquid crystal molecules that are rotated about respective axes parallel to a central axis, where the rotation varies with an azimuthal angle about the central axis. The switchable waveplate additionally comprises a plurality of electrodes to apply an electrical signal across said first liquid crystal layer.Type: GrantFiled: June 13, 2019Date of Patent: June 11, 2024Assignee: Magic Leap, Inc.Inventors: Chulwoo Oh, Ravi Kumar Komanduri
-
Patent number: 12001111Abstract: 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.Type: GrantFiled: March 26, 2021Date of Patent: June 4, 2024Assignee: SAINT-GOBAIN GLASS FRANCEInventor: Frédéric Mondiot
-
Patent number: 11990680Abstract: The array antenna system according to an embodiment includes an active radiation layer including a plurality of unit cells and a control circuit to control properties of each unit cell, a plurality of patch antennas placed on each unit cell, and a feed line to feed waves for excitation of the plurality of patch antennas through the active radiation layer, wherein each unit cell is controlled to have different radiation properties by the control circuit, and beam steering and impedance control of the array antenna system is enabled by control of the active radiation layer. According to the embodiment, power consumption is much lower than the existing beamforming circuit, and the using of the single feed line reduces the complexity of system design.Type: GrantFiled: March 18, 2021Date of Patent: May 21, 2024Assignee: Seoul National University R&DB FoundationInventors: Jungsuek Oh, Jaehoon Kim
-
Patent number: 11983900Abstract: A method includes obtaining a first image to be rendered, obtaining a target mask image corresponding to the first image where a g component of the target mask image stores first light change data and a b component of the target mask image stores second light change data, the first light change data being change data of light on a left side of the first image used when the first image is rendered and the second light change data being change data of light on a right side of the first image used when the first image is rendered, and rendering the first image by using the target mask image to obtain a second image.Type: GrantFiled: January 31, 2022Date of Patent: May 14, 2024Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Qi Liu, Guangzhou Zhai, Yuanxie Mai
-
Patent number: 11927343Abstract: A variable angle beam control device is capable of maintaining the same color temperature of the light source regardless of the changes in the angle of the beam. The controllable light beam device has a light source with primary optics producing a low divergence light beam having an inverted angular distribution of the correlated color temperature (CCT), and a liquid crystal device with an electrically variable refractive index distribution arranged to receive said light beam and to provide a variable angle beam.Type: GrantFiled: September 30, 2020Date of Patent: March 12, 2024Inventors: Tigran Galstian, Armen Zohrabyan, Behzad Khodadad, Karen Asatryan
-
Patent number: 11927842Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines; scanning lines; a grid-shaped organic insulating layer that extends along the scanning lines and the signal lines and overlies the scanning lines and the signal lines; pixel electrodes provided in regions surrounded by the scanning lines and the signal lines; and a first orientation film that covers the pixel electrodes. A portion of each pixel electrodes overlaps a slant surface of the organic insulating layer. The counter substrate includes: a common electrode overlapping the respective pixel electrodes; a protective film that has an insulating capability and a light transmitting capability and covers a side of the common electrode facing the array substrate at least in the display region; and a second orientation film that covers the protective film.Type: GrantFiled: March 3, 2023Date of Patent: March 12, 2024Assignee: Japan Display Inc.Inventors: Hiroki Sugiyama, Kentaro Okuyama, Yoshihide Ohue, Yuuji Oomori
-
Patent number: 11921370Abstract: Disclosed are a display panel and a method of manufacturing a display panel. The display panel includes an array substrate; a color film substrate disposed opposite to the array substrate; a liquid crystal layer disposed between the array substrate and the color film substrate; a reflective layer disposed on a side of the array substrate facing the liquid crystal layer. The reflective layer comprises a plurality of first convex structures, each of the first convex structures has a first sidewall extending from a bottom to a top of each of the first convex structures, and an angle between a normal line of the first sidewall and a horizontal plane is greater than 0° and less than or equal to 10°.Type: GrantFiled: July 24, 2022Date of Patent: March 5, 2024Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Ying Lu, Yingchun Zhao, Wuguang Liu, Lixia Li
-
Patent number: 11899313Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.Type: GrantFiled: January 17, 2023Date of Patent: February 13, 2024Assignee: Japan Display Inc.Inventors: Manabu Mizuno, Kentaro Okuyama, Hiroshi Inamura, Hiroki Sugiyama
-
Patent number: 11884862Abstract: Compounds of the formula I in which R1 is alkyl or alkoxy in which CH2 groups are optionally replaced, and X1 is alkyl OCF3, CF3, CHF2, OCF2CF3, CCF2CHFCF3, OCF?CF2, OCH?CF2 or F, a liquid-crystalline medium containing a compound of formula I, and use thereof in electro-optical liquid-crystal displays, in particular in TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS or PS-FFS-, positive VA displays and in shutter spectacles for 3D effects and LC lenses.Type: GrantFiled: August 4, 2016Date of Patent: January 30, 2024Assignee: MERCK PATENT GMBHInventors: Achim Goetz, Christian Hock, Lars Lietzau, Mark Goebel
-
Patent number: 11835812Abstract: A display system includes a lighting device, a correction coefficient generating circuit receiving a plurality of image data including first image data and second image data, generating a first correction coefficient based on a brightness of the first image data and generating a second correction coefficient based on a brightness of the second image data, and the first image data corresponding to a first image and a second image data corresponding to a second image adjacent to the first image and located on the opposite side of the lighting device, a multiplication circuit generating first corrected image data using the first image data and the first correction coefficient, and generating second corrected image data using the second image data and the second correction coefficient, and a display drive control unit transmitting the first and the second corrected image data to the display panel.Type: GrantFiled: April 11, 2022Date of Patent: December 5, 2023Assignee: Japan Display Inc.Inventor: Yoshio Maruoka
-
Patent number: 11789319Abstract: A liquid crystal phase modulation device includes a first substrate, a second substrate, a liquid crystal layer, at least one first spacer, and a first alignment layer. The second substrate is opposite to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. The one first spacer is between the first substrate and the second substrate. The first alignment layer is adjacent to the liquid crystal layer and the first spacer, and has a first alignment direction. The first spacer has a first length in the first alignment direction and a second length in a direction perpendicular to the first alignment direction as view from top, and the first length is greater than the second length.Type: GrantFiled: December 21, 2020Date of Patent: October 17, 2023Assignee: Liqxtal Technology Inc.Inventors: Chih-Chan Lin, Yu-Ching Chen
-
Patent number: 11740457Abstract: New augmented reality display systems are provided, some of which incorporate “shifted-reality” techniques. In some embodiments, an augmented reality display system includes a matrix of light-augmenting pixels within a variable-transmission, semi-transparent screen (e.g., an augmented reality headset, comprising a semi-transparent screen) and creates redirected, attenuated and augmented light and shading to form and alter virtual objects. In some embodiments, a plurality of angle-alterable, shiftable sources (e.g., light-focusing and -directing pixels), aids in creating virtual objects of greater realism than conventional 3D imaging methods, and aids in reducing the appearance of other objects or conditions. In some aspects, existing images and objects may be shifted in perspective for an observer, and enhanced and overlaid with effects and demonstrative information related to them and a surrounding environment.Type: GrantFiled: May 2, 2021Date of Patent: August 29, 2023Inventor: Christopher V. Beckman
-
Patent number: 11732193Abstract: A display panel includes a first substrate, an electrode layer, and a display medium layer. The electrode layer is disposed on the first substrate. The display medium layer is disposed on the electrode layer and includes a filler and liquid crystal capsules. The liquid crystal capsules are distributed in the filler, and the filler has a birefringence difference ?n in a range from 0.02 to 0.175.Type: GrantFiled: July 6, 2021Date of Patent: August 22, 2023Assignee: AU OPTRONICS CORPORATIONInventors: Liang-Yin Huang, Chih-Hao Chen, Min-Zi Hong, Seok-Lyul Lee
-
Patent number: 11686965Abstract: A light control sheet including a light control layer switchable between a transparent state and an opaque state, and transparent electrode layers sandwiching the light control layer. The light control layer includes a transparent polymer layer that has domains whose average size is 1.0 ?m-1.55 ?m, and the light control layer includes a liquid crystal composition at a concentration of 37%-55% such that the liquid crystal composition fills the domains.Type: GrantFiled: December 28, 2021Date of Patent: June 27, 2023Assignee: TOPPAN Inc.Inventors: Toshiji Yasuhara, Takehiro Yamada
-
Patent number: 11675244Abstract: Layered dielectric materials for use in controlling dielectric strength in microelectronic devices, especially as they relate to electrophoretic and electrowetting applications. Specifically, a combination of a first atomic layer deposition (ALD) step, a sputtering step, and a second ALD step result in a layer that is chemically robust and nearly pinhole free. The dielectric layer may be disposed on the transparent common electrode of an electrophoretic display or covering the pixelated backplane electrodes, or both.Type: GrantFiled: April 30, 2020Date of Patent: June 13, 2023Assignee: E Ink CorporationInventors: Cristina Visani, Stephen J. Telfer, Kosta Ladavac, Kenneth R. Crounse, Timothy J. O'Malley, Teck Ping Sim
-
Patent number: 11640079Abstract: A beam splitter configured to split incident light includes a polarization grating having a liquid crystal layer and a reflective sub-aperture beam splitter. The liquid crystal layer is configured to switch between an “on” state and an “off” state in response to an applied voltage. In the “off” state, the polarization grating angularly deviates and polarizes a portion of received incident light passing therethrough. In the “on” state, crystals of the polarization grating align with the incident light, allowing it to pass therethrough unimpeded and unpolarized. The beam splitter includes a plurality of sub-aperture mirrors which are spaced at randomly varying distances from one another, the mirrors being configured to reflect a portion of the incident light.Type: GrantFiled: July 23, 2020Date of Patent: May 2, 2023Assignee: RAYTHEON COMPANYInventor: David N. Sitter, Jr.
-
Patent number: 11598985Abstract: A system such as a vehicle, building, or electronic device system may have a support structure with one or more windows. The support structure and window may separate an interior region within the system from a surrounding exterior region. Control circuitry may receive input such as user input and may adjust an adjustable layer in the window based on the input. The adjustable layer may have a polymer matrix layer with embedded cells. The cells may include intermixed guest-host liquid crystal cells and liquid crystal cells. The guest-host liquid crystal cells and liquid crystal cells may have different liquid crystal materials and/or different sizes that allow the guest-host liquid crystal cells and liquid crystal cells to electrically switch states at different respective threshold voltages. Based on the user input or other input the control circuitry can adjust a drive signal across the adjustable layer to change light transmittance and haze.Type: GrantFiled: September 3, 2021Date of Patent: March 7, 2023Assignee: Apple Inc.Inventors: Yuan Chen, Donald R. Monroe, Peter F. Masschelein, Stephen B. Lynch, Xiaokai Li, Zhibing Ge
-
Patent number: 11591261Abstract: A method for bonding glass components and the resulting glass assemblies produced by the same. A mixture containing a catalyst and a resin is provided that when combined forms an index-matching optical adhesive. At least one of the catalyst or the resin is encapsulated. The mixture is applied to a glass component. A second glass component is placed on the mixture so that the mixture is interposed between the glass components without breaking the encapsulation. The mixture is exposed to ultraviolet light causing the capsules to release the portions contained therein and combine to form an adhesive.Type: GrantFiled: February 7, 2017Date of Patent: February 28, 2023Assignee: Manufacturing Resources International, Inc.Inventors: William Dunn, Michael LeCave
-
Patent number: 11592704Abstract: A dimming panel includes: a transparent base substrate and a plurality of dimming cells disposed on the transparent base substrate; each of the plurality of dimming cells comprises a refractive structure and an electric field structure disposed outside the refractive structure, the refractive structure comprises at least two film layers stacked, a refractive index difference between any two adjacent film layers in the at least two film layers is variable under an action of an electric field applied by the electric field structure.Type: GrantFiled: December 24, 2019Date of Patent: February 28, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bingyang Liu, Dongchuan Chen, Xueqiang Qian, Kaixuan Wang, Xinli Ma
-
Patent number: 11586086Abstract: A pixel architecture includes sub-pixels, gate lines extending in first direction and data lines. Two gate lines are provided between every two adjacent rows of sub-pixels. Each data line includes first extension portions extending in first direction and second extension portions extending in second direction intersecting the first direction. The gate lines and the data lines define pixel regions each being provided with two sub-pixels arranged in the first direction therein. Every two adjacent first extension portions and a second extension portion connected between the two first extension portions constitute a projection portion accommodating at least one pixel region. All sub-pixels in each projection portion are coupled to the same data line to receive data voltage signals with the same voltage polarity. Sub-pixels in two adjacent projection portions in the second direction are coupled to two adjacent data lines to receive data voltage signals with opposite voltage polarities.Type: GrantFiled: August 21, 2020Date of Patent: February 21, 2023Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yang Wang, Bo Feng, Xiaoxiao Chen, Wenjun Xiao, Hao Xu, Zhiying Bao, Tianxin Zhao, Wenkai Mu, Bingqing Yang, Yi Liu, Shijun Wang
-
Patent number: 11532799Abstract: The present disclosure relates to a neuron behavior-imitating electronic synapse device and a method of fabricating the same. According to one embodiment, the neuron behavior-imitating synapse device includes a first electrode having a lithium-doped surface, an active layer formed on the first electrode and including a polyelectrolyte and one or more metal nanoparticles, and a second electrode formed on the active layer.Type: GrantFiled: October 21, 2020Date of Patent: December 20, 2022Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Tae Whan Kim, Young Pyo Jeon, Jeong Heon Lee
-
Patent number: 11513280Abstract: A light guide plate, a backlight module and a display device are disclosed. The light guide plate includes: a first optical path control layer, a second optical path control layer, and a light guide layer that are sequentially stacked. A plurality of prism structures are provided on a side of the first optical path control layer distal to the second optical path control layer. The first optical path control layer, the second optical path control layer, and the light guide layer all extend in a first direction. The first optical path control layer is configured to deflect the light that enters the first optical path control layer from the light guide layer through the second optical path control layer, so that the deflected light passes through the second optical path control layer and is emitted from the light exit surface of the light guide layer.Type: GrantFiled: July 30, 2020Date of Patent: November 29, 2022Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Hai Tang, Liang Gao, Jianwei Qin, Lu Gao, Bo Han
-
Patent number: 11500241Abstract: A polarizer, a display panel and a method for manufacturing the display panel are disclosed. The polarizer may include a first liquid crystal layer and a second liquid crystal layer. The second liquid crystal layer may be formed on the first liquid crystal layer and stacked on the first crystal layer. A polarity of first liquid crystal molecules in the first liquid crystal layer may be smaller than a polarity of first liquid crystal molecules in a natural state.Type: GrantFiled: July 1, 2021Date of Patent: November 15, 2022Assignees: Kunshan New Flat Panel Display Technology Center Co., Ltd., KunShan Go-Visionox Opto-Electronics Co., Ltd.Inventors: Lingyan Chen, Lingxiao Du
-
Patent number: 11460889Abstract: A glass protective film assembly method for covering a curved surface which protects a display area of a portable device, including a flat display area and a curved display area. The glass protective film assembly for covering the curved surface includes a glass film member having a flat area portion corresponding to the flat display area and a curved area portion corresponding to the curved display area and an adhesive layer adhering the entire area of the lower surface of the glass film member to the display area of the portable display.Type: GrantFiled: April 11, 2019Date of Patent: October 4, 2022Assignee: Whitestone Co., Ltd.Inventors: Chanhyun Park, In Su Yoon, Jae Yong Jeong
-
Patent number: 11435615Abstract: An optical device that can be used for various applications including eyewears, such as sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle, and the like is provided. The optical device includes first and second outer substrates disposed to face each other, an active liquid crystal film layer, and a step forming layer. The active liquid crystal film layer and the step forming layer are encapsulated by an encapsulating agent between the first and second outer substrate. The active liquid crystal film layer comprises a first region that is pressed by the step forming layer and a second region that is not pressed by the step forming layer. The defects caused by an excessively large or small amount of light-modulating material or heat shrinkage of the light-modulating material, and the like are prevented in the optical device.Type: GrantFiled: March 26, 2020Date of Patent: September 6, 2022Inventors: Seong Min Lee, Byoung Kun Jeon, Nam Hun Kim, Jung Woon Kim, Young Shin Lee
-
Patent number: 11435607Abstract: A liquid crystal composite material is disclosed, including a polymer matrix, and a light-blocking body dispersed in the polymer matrix, wherein when no voltage is applied, the light-blocking body is randomly oriented so that the liquid crystal composite material is in a black state, and wherein when a voltage is applied, the light-blocking body is orderly oriented and the polymer matrix scatters incident light, so that the liquid crystal composite material is in a scattering state. A light switching device, a display device and methods for manufacturing the liquid crystal composite material, the light switching device, and the display device are further disclosed.Type: GrantFiled: July 6, 2020Date of Patent: September 6, 2022Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenbo Li
-
Patent number: 11429015Abstract: An object is to provide a light-emitting element capable of further suppressing the spread of a light-emitting region and further improving directivity. A light-emitting element is provided which includes at least a phosphor layer and an emission angle selection layer which emits light incident at a predetermined angle, in which the phosphor layer includes a phosphor and a light scatterer, and the phosphor layer and the light emission angle selection layer are arranged in this order.Type: GrantFiled: January 17, 2019Date of Patent: August 30, 2022Assignee: SONY CORPORATIONInventors: Hiroki Morita, Izushi Kobayashi
-
Patent number: 11396001Abstract: The present invention relates to a process for the preparation of formaldehyde-free organic-inorganic microcapsules, comprising a hydrophobic active ingredient-based core, preferably a perfume or a flavour, and a shell comprising inorganic particles consisting of non-chemically surface modified inorganic particles. Microcapsules obtained by said process are also an object of the invention. Consumer products comprising said capsules, in particular perfumed consumer products in the form of home care or personal care products, are also part of the invention.Type: GrantFiled: September 12, 2017Date of Patent: July 26, 2022Assignee: Firmenich SAInventors: Yongtao Wu, Lahoussine Ouali
-
Patent number: 11340452Abstract: A heads up display system of a vehicle includes a combiner screen having a first substantially transparent substrate defining a first surface and a second surface, a second substantially transparent substrate defining a third surface and a fourth surface. A primary seal is disposed between the first and second substrates. The seal and the first and second substrates define a cavity therebetween. An electro-optic material is positioned within the cavity and a transflective layer having a multilayer polymeric film positioned on one of the first and second surfaces, and a projector for projecting light having a first polarization toward the first surface of the first substrate.Type: GrantFiled: December 12, 2019Date of Patent: May 24, 2022Assignee: GENTEX CORPORATIONInventors: David J. Cammenga, William L. Tonar, David L. Poll
-
Patent number: 11327354Abstract: An array substrate, a method of driving an array substrate, a method of fabricating and array substrate, and a display panel including an array substrate are provided. The array substrate includes a base substrate, a first electrode and a second electrode on the base substrate, a polymer-dispersed liquid crystal layer between the first electrode and the second electrode, and a reflective layer on a side of the polymer-dispersed liquid crystal layer opposite from the base substrate. The polymer-dispersed liquid crystal layer is configured to switch between a transparent state and an opaque state in accordance with a voltage applied between the first electrode and the second electrode.Type: GrantFiled: June 27, 2018Date of Patent: May 10, 2022Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Kui Gong, Xianxue Duan, Tianzhen Liu, Cheng Chen
-
Patent number: 11314137Abstract: A display device for displaying at least one of graphical information and alphanumeric data may include a housing, a display housed within the housing, a backlight housed within the housing and for generating visible light to illuminate the display, a light guide plate coupled between the display and the backlight within the housing and configured to guide the visible light generated by the backlight, a laminate exposed through the housing and covering a portion of the light guide plate, wherein the laminate has a variable optical transmittance based on a voltage applied to the laminate, and a controller housed within the housing and configured to control the voltage applied to the laminate in order to control the variable optical transmittance and modulate emission of light generated by the backlight transmitted through the laminate.Type: GrantFiled: September 23, 2020Date of Patent: April 26, 2022Assignee: Dell Products L.P.Inventors: Guentaek Oh, Yong-Gu Kang
-
Patent number: 11237431Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.Type: GrantFiled: December 8, 2020Date of Patent: February 1, 2022Assignee: Japan Display Inc.Inventors: Manabu Mizuno, Kentaro Okuyama, Hiroshi Inamura, Hiroki Sugiyama
-
Patent number: 11221126Abstract: A light emitting device includes a plurality of light emitting elements and a light controller. The light emitting elements are for emitting lights. The light controller is disposed on the light emitting elements for the lights passing through, which is switchable in a first state and a second state. The light controller collimates the lights in the first state and diffuses the lights in the second state.Type: GrantFiled: March 26, 2021Date of Patent: January 11, 2022Assignee: InnoLux CorporationInventors: Jui-Jen Yueh, Kuan-Feng Lee
-
Patent number: 11215863Abstract: A light-modulating element, a backlight module, a display device and a method for controlling the same are provided. The light-modulating element includes a first substrate and a second substrate arranged opposite to each other, and a polymer dispersed liquid crystal layer located between the first substrate and the second substrate. The light-modulating element is divided into a plurality of light-modulating zones, and the light-modulating element further includes a first electrode and a second electrode located in each of the plurality of light-modulating zone. A plurality of first electrodes located in different light-modulating zones are independently arranged, and the first electrode and the second electrode are configured to drive a deflection of polymer dispersed liquid crystal molecules in polymer dispersed liquid crystal layer.Type: GrantFiled: December 3, 2019Date of Patent: January 4, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Desheng Xiang, Jianye Tang, Dawei Wang, Jiaqiang Wang, Dong Wang, Yanming Wang, Shuainan Liu, Yajun Guo, Xi Chen
-
Patent number: 11143905Abstract: A display panel and a manufacturing method thereof, and a display device are disclosed. The display panel includes a display laminated structure and an electrostatic discharge layer stacked on a surface, which is at a display side of the display laminated structure, of the display laminated structure. The display laminated structure includes a display region, the electrostatic discharge layer includes a lens unit, and the lens unit is on the display region.Type: GrantFiled: June 3, 2019Date of Patent: October 12, 2021Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTDInventors: Linlin Wang, Huabin Chen, Yongzhi Song
-
Patent number: 11086190Abstract: The disclosure provides an optically drivable glass device including: a substrate; a windable stacked layer arranged on the substrate, where one end of the windable stacked layer is installed on the substrate, and the windable stacked layer includes a driving layer formed of an ultraviolet rays-sensitive and deformable material, and a flexible substrate layer with a light absorbing or reflecting function, where an initial state of the driving layer is a flat state; and an ultraviolet light source configured to provide the windable stacked layer with a light source, where the driving layer is configured to change from the flat state to a curled state under an ultraviolet radiation environment; and the driving layer is configured to change from the curled state to the flat state under an ultraviolet radiation-free environment.Type: GrantFiled: August 29, 2019Date of Patent: August 10, 2021Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Wenbo Li
-
Patent number: 10989939Abstract: A liquid crystal display device includes a narrow light distribution backlight, a transparent backlight disposed in front of the narrow light distribution backlight, and a transmissive liquid crystal panel in a horizontal electrical field mode. The transparent backlight is a sidelight type backlight including a transparent light guide plate disposed to face the narrow light distribution backlight and a light source disposed on a side surface of the light guide plate. Prism-like irregularities extending in a vertical direction are formed on a surface of the light guide plate on a side of the narrow light distribution backlight. An electrode having a comb-like shape extending in a horizontal direction is disposed in each pixel of the transmissive liquid crystal panel.Type: GrantFiled: January 2, 2020Date of Patent: April 27, 2021Assignee: Mitsubishi Electric CorporationInventor: Akimasa Yuuki
-
Patent number: 10930600Abstract: There is provided a display substrate, a method of manufacturing a display substrate, and a display device. The display substrate includes a base substrate, a conductive layer on the base substrate, and a protective layer on the conductive layer. The protective layer includes a plurality of fillers disposed in one layer. The filler includes an outer wall and a plurality of nanoscale filling particles enclosed by the outer wall.Type: GrantFiled: May 3, 2018Date of Patent: February 23, 2021Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weixiong Chen, Bin Li, Xin Li, Huiying Li, Yong Song
-
Patent number: 10921672Abstract: A switchable window includes an electro-optical layer of or including an anisotropic gel of polymer stabilized highly chiral liquid crystal, for example, blue phase liquid crystal, encapsulated in, for example, a mesogenic polymer inclusive shell, that forms a self-assembled, three-dimensional photonic crystal that remains electro-optically switchable under a moderate applied voltage (e.g., electric field). The liquid crystal (LC) arrangement may be achieved via a polymer assembled blue phase liquid crystal system having a substantially continuous polymer structure case surrounding well-defined discrete bodies of liquid crystal material arranged in a cellular manner. These assembled structures globally connect to form a matrix. This provides for reduction of angular birefringence of highly chiral LC systems, which advantageously reduces haze in applications such as switchable windows.Type: GrantFiled: March 23, 2017Date of Patent: February 16, 2021Assignee: Guardian Glass, LLCInventor: Vijayen S. Veerasamy