Alignment Layer Patents (Class 349/123)
  • Patent number: 11126043
    Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: September 21, 2021
    Assignee: Japan Display Inc.
    Inventor: Motoharu Miyamoto
  • Patent number: 11119374
    Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 14, 2021
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11114646
    Abstract: An organic light emitting display panel and a display device are provided. The organic light emitting display panel includes a substrate, a plurality of organic light emitting diode elements in an array on one side of the substrate, a phase compensation film on a side of the organic light emitting diode elements away from the substrate, and a circular polarizer on a side of the phase compensation film away from the organic light emitting diode elements, wherein the phase compensation film compensates for phase retardation amounts of the circular polarizer at all viewing angles, so that a phase retardation amount of light obliquely passing through the circular polarizer and the phase compensation film is substantially consistent with that of light perpendicularly passing through the circular polarizer and the phase compensation film.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 7, 2021
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qian Li, Bing Zhang
  • Patent number: 11112654
    Abstract: A liquid crystal display device, which includes a first substrate and a second substrate disposed to face each other with a liquid crystal sandwiched therebetween. The first substrate is an electrode-provided substrate having a first electrode and a plurality of second electrodes overlaid on the first electrode via an insulating film, formed on a pixel region on a surface on the liquid crystal side, where one of the first electrode and the second electrodes is a pixel electrode and the other is a counter electrode, having a first liquid crystal alignment film formed on the surface on the liquid crystal side of the first substrate covered with the second electrodes. The second substrate is a substrate having a second liquid crystal alignment film formed on a surface on the liquid crystal side, the second liquid crystal alignment film containing a photosensitive side chain type polymer which develops liquid crystallinity.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 7, 2021
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Atsuhiko Mandai, Naoki Sakumoto
  • Patent number: 11069977
    Abstract: A liquid crystal alignment agent according to the present invention includes: an alignment film forming material; and an organic solvent. The organic solvent contains a compound which has at least two functional groups selected from the group consisting of a methylene group, a methyl group, an ether group, a ketone group, and a hydroxyl group, and does not contain a nitrogen atom.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: July 20, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Isamu Miyake
  • Patent number: 11067855
    Abstract: A method for aligning a layer of photopolymers includes projecting light onto a rotating optical element and asymmetrically focusing the light transmitted through the rotating optical element onto a layer of photopolymers. The asymmetrically focused light is swept across different regions of the layer of photopolymers while a direction of polarization in the light is varied due to the rotation of the first optical element, producing a pattern of orientations for the layer of photopolymers. The method can be incorporated in a raster-scanning process to produce an alignment pattern in a layer of photopolymers with a large surface area, and is faster and provides improved precision and/or uniformity of the alignment pattern compared to currently available methods. An apparatus for aligning the layer of photopolymers is also disclosed.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: July 20, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Babak Amirsolaimani, Ying Geng, Scott Charles McEldowney
  • Patent number: 11069752
    Abstract: A display device and a manufacturing method which minimize a difference in touch sensitivity between regions of a display device are disclosed. The display includes a display area, a color filter area disposed over the display area, and a touch area disposed between the display area and the color filter area. The display area includes a substrate, an insulating layer disposed over the substrate, first and second electrodes, partition walls disposed between the insulating layer and the second electrode, an emission layer disposed in an opening formed by the first and second electrodes and adjacent partition walls, and a spacer disposed on at least one of the partition walls. The color filter area includes a first light blocking member disposed at a region overlapping the spacer and including at least two color filters stacked on each other.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: July 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyeon Bum Lee
  • Patent number: 11053442
    Abstract: The invention relates to a liquid crystal mixture characterised in that it comprises one or more photoreactive mesogens of formula I wherein the parameters and groups occurring are defined as indicated in claim 1, to a process for the fabrication of liquid crystal displays using these liquid crystal mixtures and to a liquid crystal display obtainable by this process. The invention further relates to new compounds of formula I.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 6, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Kevin Adlem, Alex Davis, Joseph Sargent, Ian Charles Sage, Edward Plummer, Izumi Saito, Rocco Fortte, Helga Haas, Lars Lietzau
  • Patent number: 11036088
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate disposed to oppose the first substrate, a layer of liquid crystal located between the first substrate and the second substrate, and an alignment film disposed on the first substrate so as to be in contact with the layer of the liquid crystal. The liquid crystal has a refractive-index anisotropy ?n of 0.11 or more, the layer of the liquid crystal has a thickness d of 2.5 ?m or less, and a product ?nd of the refractive-index anisotropy ?n and the thickness d is 0.20 or more but 0.31 or less. The transmissivity of light having a wavelength of 450 nm in the first substrate and the alignment film is 85% or more but 97% or less.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 15, 2021
    Assignee: Japan Display Inc.
    Inventors: Hidehiro Sonoda, Masahiro Kosuge, Yasushi Tomioka, Takenori Hirota, Noboru Kunimatsu
  • Patent number: 11030785
    Abstract: Provided is a display device including a first display unit, a second display unit arranged on a back side of the first display unit, a generation unit configured to perform predetermined image processing on first image data to generate second image data, and a control unit configured to select one of a plurality of display modes including a first display mode on which the first display unit displays an image based on the first image data and the second display unit displays an image based on the second image data, and a second display mode on which the first display unit and the second display unit display the image based on the first image data.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 8, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masahiro Kamiyoshihara
  • Patent number: 11022847
    Abstract: Provided is a liquid crystal display in lateral-electric-field mode that improves faulty display resulting from static electricity without, in particular, degrading display quality or considerably increasing costs. A liquid crystal display in one aspect of the present invention includes the following: an array substrate and counter substrate processed into a thin plate that is less than 0.5 mm thick; a liquid crystal layer sealed between this pair of substrates; and an alignment film disposed on the counter substrate. The alignment film has a photoconductivity in which the volume resistance value of the alignment film under light irradiation changes to at least not greater than 1/10 of the volume resistance value of the alignment film under no light irradiation.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 1, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazushi Kiyota
  • Patent number: 11003007
    Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 11, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Yusuke Hagiwara
  • Patent number: 10998348
    Abstract: A display apparatus includes a substrate including a display area, in which gate lines and data lines are disposed, and a non-display area, in which a gate driver and a pad part are disposed. A gate insulating layer is on the substrate. Data link lines are on the gate insulating layer to connect data pads of the pad part to the data lines, and an interlayer insulating layer is on the data link lines. Gate voltage supply lines are on the interlayer insulating layer to connect the gate driver with the gate lines. A protective layer is on the interlayer insulating layer to cover the gate voltage supply lines, the protective layer including an opening for exposing the interlayer insulating layer of an area overlapping the data link lines.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 4, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Chul Um, Jong-Chan Park
  • Patent number: 10976578
    Abstract: A privacy display comprises a polarised output spatial light modulator, reflective polariser, plural polar control retarders and a polariser. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without loss, whereas off-axis light has reduced luminance. Further, display reflectivity is reduced for on-axis reflections of ambient light, while reflectivity is increased for off-axis light. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction and increased frontal reflectivity to ambient light. In a public mode of operation, the liquid crystal retardance is adjusted so that off-axis luminance and reflectivity are unmodified.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: April 13, 2021
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Jonathan Harrold, Robert A. Ramsey
  • Patent number: 10969630
    Abstract: A liquid crystal display apparatus according to an embodiment of the present invention includes a first and a second substrate, and a vertical alignment type liquid crystal layer. The first substrate has a pixel electrode and a first photo alignment film. The second substrate has a counter electrode and a second photo alignment film. Each pixel has a plurality of liquid crystal domains having different reference alignment directions. The plurality of liquid crystal domains include a first liquid crystal domain, the reference alignment direction of the first liquid crystal domain being a first direction. A portion of a plurality of edges of the pixel electrode that is close to the first liquid crystal domain includes a first edge portion, the angle between an azimuth angle direction perpendicular to the first edge portion and pointing toward the inside of the pixel electrode, and the first direction, being greater than 90°.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 6, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Mitsuaki Hirata
  • Patent number: 10969633
    Abstract: A method of fabricating a display panel includes providing a first substrate and a second substrate, forming an alignment material layer on one of the first substrate and the second substrate and patterning the alignment material layer to form an individual central portion, forming a hydrophobic surface extending from an edge of the individual central portion toward an edge of the one of the first substrate and the second substrate, forming a sealant material on the one of the first substrate and the second substrate, dropping a display medium material on the individual central portion, assembling the first substrate and the second substrate with the sealant material and curing the sealant material to form a sealant. A gap separates the sealant material from the individual central portion and the hydrophobic surface extends in the gap. The display medium material is restricted by the hydrophobic surface and does not contact the sealant material.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 6, 2021
    Assignee: Himax Display, Inc.
    Inventors: Po-Hung Pan, Hsing-Lung Wang
  • Patent number: 10948779
    Abstract: An optical waveplate is provided. The optical waveplate includes a positive-C film including a first liquid crystal (“LC”) layer. Tilt angles of LC molecules vary along a thickness direction of the first LC layer. The optical wave also includes an LC cell disposed at a first side of the positive-C film and including a second LC layer aligned in an optically compensated bend (“OCB”) mode. The optical waveplate also includes a positive-A film disposed at a second side of the positive-C film. The optical waveplate further includes a negative biaxial retardation film disposed between the positive-A film and the positive-C film. The LC cell is switchable between at least two predetermined states.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: March 16, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Afsoon Jamali, Yingfei Jiang
  • Patent number: 10948781
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film covering a pixel electrode, a second substrate including a second alignment film covering a second common electrode, a sealant attaching the first substrate and the second substrate, and a liquid crystal layer held between the first alignment film and the second alignment film, wherein the first alignment film and the second alignment film are formed of a material in which a principal chain is composed of silica (SiO2), and extend at a position overlapping the sealant between an inner face and an outer face of the sealant.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 16, 2021
    Assignee: Japan Display Inc.
    Inventor: Keisuke Takano
  • Patent number: 10942397
    Abstract: A spatial phase modulator and a method for producing a spatial phase modulator are provided. The spatial phase modulator includes a first substrate and a second substrate that are meshed together, and a liquid crystal layer disposed between the two substrates, where a transparent electrode layer and a first alignment and guiding layer are disposed in a cascading manner on a side that is of the first substrate and that faces the liquid crystal layer; and an electrode layer and an insulation medium glass layer are disposed in a cascading manner on a side that is of the second substrate and that faces the liquid crystal layer, where the insulation medium glass layer has an inclined serration structure on a side facing the liquid crystal layer.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 9, 2021
    Assignees: Huawei Technologies Co., Ltd., Cambridge Enterprise Limited
    Inventors: Liangjia Zong, Daping Chu, Haining Yang
  • Patent number: 10928682
    Abstract: A display device and a method of manufacturing the same are disclosed. The display device comprises a thin film transistor on a substrate, a protective film on the thin film transistor, and an alignment film on the protective film. The protective film includes one or more protective films, and a protective film adjacent to the alignment film among the one or more protective films has a silicon content higher than a nitrogen content. Thus, it is possible to provide a display device capable of reducing image sticking or flicker.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: February 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: HaJoong Lee, Kyungmin Yeo
  • Patent number: 10921652
    Abstract: A display apparatus includes a first base substrate (BS), a second BS facing the first BS, a liquid crystal layer disposed between the first BS and the second BS, a color filter layer, pixel electrodes, a light-shielding column spacer, a common electrode, and trap electrodes. The first BS includes a display area and a non-display area. The color filter layer is disposed on the first BS in the display area. The pixel electrodes are disposed on the color filter layer. The light-shielding column spacer is disposed on the first BS in the non-display area and includes a light-shielding material. The common electrode is disposed on the second BS and faces the pixel electrodes. The liquid crystal layer is disposed between the common electrode and the pixel electrodes. The trap electrodes are disposed on a lower portion of the light-shielding column spacer and face the common electrode.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: February 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doyeong Park, Byoungsun Na, Yoomi Ra, Kyusu Ahn, Richard James, Kookhyun Choi
  • Patent number: 10914966
    Abstract: The disclosure discloses a manufacturing method of a liquid crystal display grating. The method includes preparing a substrate, depositing a transparent film layer on the substrate, patterning the transparent film layer for producing a plurality of containing grooves, depositing a liquid crystal alignment film in the containing grooves, injecting liquid crystal molecules in the containing grooves, aligning and packaging the liquid crystal molecules. The disclosure can achieve 3D display by the method above.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 9, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yanhong Meng, Zhixiong Jiang
  • Patent number: 10892551
    Abstract: A phase shifter and a manufacturing method thereof, a liquid crystal antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate which are oppositely arranged; and a sealing frame structure located in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material; wherein the sealing frame structure includes a support, and sealant for bonding to the first substrate, on the support. It is able to facilitate the increase in the adjusting range of the resonant frequency of the liquid crystal antenna by the phase shifter and the manufacturing method thereof.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: January 12, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Tingze Dong, Jingpeng Li, Yongshan Zhou
  • Patent number: 10891097
    Abstract: A receiving device includes a display, a communication unit, and a protrusion portion. The display displays an image and receives an operation corresponding to the image in such a manner that a user comes into contact with the image. The communication unit communicates with a wireless communication apparatus performing near-field wireless communication. The protrusion portion is disposed at least between the display and the communication unit and protrudes from a surface on which the display is provided.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 12, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shunsuke Kodaira, Asako Takayama
  • Patent number: 10879273
    Abstract: An active matrix substrate includes a thin film transistor having a gate electrode, an oxide semiconductor layer disposed on the gate electrode via a gate insulating layer, and a source electrode and a drain electrode disposed on the oxide semiconductor layer. A plurality of gate bus lines and the gate electrode are made of a first electrically conductive film. At least part of each of the plurality of source bus lines, the source electrode, and the drain electrode have a multilayer structure including a lower layer that is made of a second electrically conductive film and an upper layer that is made of a first transparent electrically conductive film. Between the plurality of source bus lines and the gate insulating layer, a plurality of first oxide strips extending along the first direction are disposed, the first oxide strips being made of the same oxide semiconductor film as the oxide semiconductor layer.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 29, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hidenobu Kimoto
  • Patent number: 10872934
    Abstract: Disclosed is a display device including: a plurality of pixel electrodes; a plurality of opposing electrodes located over the plurality of pixel electrodes and arranged in a stripe shape; and an EL layer sandwiched between the plurality of pixel electrodes and the plurality of opposing electrodes. The plurality of opposing electrodes is electrically independent from one another. Each of the opposing electrodes may be electrically independent from the plurality of metal films. The plurality of metal films may be electrically floating.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: December 22, 2020
    Assignee: Japan Display Inc.
    Inventors: Shuji Hayashi, Hayato Kurasawa, Takayuki Nakanishi, Mitsuhide Miyamoto, Hiroshi Mizuhashi, Yoshitoshi Kida
  • Patent number: 10871682
    Abstract: A method for manufacturing a display panel, a display panel and a display device are provided. The method for manufacturing a display panel includes: mixing a liquid crystal material and a spacer preparation material, and injecting them between an array substrate and a color filter substrate which are assembled; performing a UV irradiation on the assembled array substrate and the color film substrate with ultraviolet rays by using a mask plate to polymerize the spacer preparation material to form spacers, the spacers connecting the array substrate and the color film substrate.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: December 22, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Cao
  • Patent number: 10866465
    Abstract: A display panel includes a first substrate and a second substrate assembled together, a display medium layer between the first and second substrates, a sealant between the first and second substrates and surrounding the display medium layer, a first alignment layer between the first substrate and the display medium layer, a second alignment layer between the second substrate and the display medium layer, and a hydrophobic surface. One of the first alignment layer and the second alignment layer has an individual central portion. The hydrophobic surface extends from an edge of the individual central portion toward an edge of the one of the first substrate and the second substrate. The sealant at least extends between the hydrophobic surface and the edge of the one of the first substrate and the second substrate. The hydrophobic surface includes a hydrophobic material that is more hydrophobic than the individual central portion.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 15, 2020
    Assignee: Himax Display, Inc.
    Inventors: Po-Hung Pan, Hsing-Lung Wang
  • Patent number: 10852590
    Abstract: A liquid crystal display device includes substrates, a liquid crystal layer between the substrates, a seal member between the substrates and surrounding the liquid crystal layer, an electrode in a first region of one of the substrates, the first region overlapping a region surrounded by the seal member, a first conductive film in a second region of the one substrate, the second region being a region outside the seal member, a second conductive film in the one substrate and extending from the electrode toward the first conductive film, a first insulating film disposed between the first and second conductive films, including a contact hole in a portion of the second region overlapping the first conductive film, and the first conductive film and the second conductive film being electrically connected to each other through the contact hole, and a second insulating film that covers the contact hole and is moisture-proof.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: December 1, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yoshihito Hara
  • Patent number: 10831073
    Abstract: A liquid crystal on silicon (LCOS) display includes a substrate; a wafer disposed on a top surface of the substrate; a liquid crystal (LC) layer disposed on a top surface of the wafer; a sealant enclosing the LC layer; an electrode layer disposed on a top surface of the LC layer, which is confined by the wafer, the sealant and the electrode layer; at least one conductive adhesive disposed and electrically coupled between the electrode layer and the substrate; and a barrier disposed adjacent to the conductive adhesive and disposed between the electrode layer and the wafer to block particles of the conductive adhesive from entering a location between the electrode layer and the wafer.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: November 10, 2020
    Assignee: Himax Display, Inc.
    Inventor: Meng-Ju Wu
  • Patent number: 10823990
    Abstract: A switchable view angle control device includes an electrically switchable zenithal bistable liquid crystal display view angle control liquid crystal device (ZBD view angle control LCD) that is operable in a first state and a second state; a front polarizer located on a viewing side of the switchable ZBD view angle control LCD; and a polarized light source located on a non-viewing side of the switchable ZBD view angle control LCD that emits light that is polarized in a first direction. When the switchable ZBD view angle control LCD in the first state, the view angle control device operates in a narrow angle view mode in which the polarization of the light from the polarized light source is changed by the switchable ZBD view angle control LCD to be polarized in a second direction that is at least partially absorbed by the front polarizer, and on-axis light passes through the switchable ZBD view angle control LCD and the front polarizer.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 3, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Andrew Acreman, Nathan James Smith
  • Patent number: 10802349
    Abstract: A flexible liquid crystal display panel is provided. The flexible liquid crystal display panel includes a color filter substrate and a plurality of polymer walls. The color filter substrate includes a second glass substrate, a light-shielding layer and a second flexible substrate, and the light-shielding layer is disposed between the second glass substrate and the second flexible substrate. The polymer walls are disposed between the array substrate and the color filter substrate. A width of each polymer wall is equal to a width of each light transmission portion.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 13, 2020
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: He Jiang
  • Patent number: 10802314
    Abstract: The present invention provides a liquid crystal display device in which display unevenness is reduced in an edge portion of a display region and the forming position of an alignment film is suitably adjusted. A liquid crystal display device includes: a display region for displaying an image; a frame region surrounding the display region; a first substrate including an insulating substrate; a second substrate facing the first substrate; a liquid crystal layer between the first substrate and the second substrate; and an alignment film on a liquid crystal layer side of the insulating substrate, the first substrate in a plan view including a groove extending to surround the display region, the groove including a first side wall on a display region side and a second side wall on a side remote from the display region, the first side wall having a smaller inclination than the second side wall.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: October 13, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kohshiroh Taniike
  • Patent number: 10802330
    Abstract: The present disclosure provides a liquid crystal display panel and a liquid crystal display apparatus. The liquid crystal display panel includes a first substrate including a plurality of protrusions, a second substrate including an active switch array and a color filter layer formed on the active switch array, and a liquid crystal layer formed between the first substrate and the second substrate.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 13, 2020
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CORPORATION LIMITED
    Inventor: Yu-Jen Chen
  • Patent number: 10802344
    Abstract: Provided is a liquid crystal display device including a first substrate; a second substrate; a liquid crystal layer sandwiched between the first substrate and the second substrate and containing a negative liquid crystal material; a first alignment film provided on the surface of the first substrate on the liquid crystal layer side; a first phase difference layer having birefringence provided between the first substrate and the first alignment film; and a second alignment film disposed on the surface of the second substrate on the liquid crystal layer side, wherein at least one of the first alignment film and the second alignment film is a photo-alignment film being in contact with the liquid crystal layer and imparting a pretilt angle of 75° or more and less than 90° to the liquid crystal material; the first phase difference layer is formed of a first polymer material having a first photofunctional group; the photo-alignment film is formed of a second polymer material having a second photofunctional group; a
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: October 13, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Kiyoshi Minoura, Akira Sakai
  • Patent number: 10795212
    Abstract: A stacked body includes a first resin film, a first electrode portion, a first alignment film, and a sealing material which are stacked, wherein the first alignment film has a permeation region where at least a part of components constituting the sealing material permeate.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 6, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Keisuke Miura
  • Patent number: 10782578
    Abstract: A method for forming a wire portion of a liquid crystal chromic device. The method includes: a) preparing a liquid crystal chromic device by forming a transparent electrode on a substrate, and forming an alignment film on the transparent electrode; b) forming two or more etching lines spaced apart by a constant interval by irradiating the alignment film with a laser; and c) applying a conductive paste to a valley region of each of the two or more etching lines. The liquid crystal chromic device includes: a substrate; a transparent electrode provided on the substrate; an alignment film provided on the transparent electrode; and two or more etching lines provided on the alignment film. The two or more etching lines are spaced apart by a constant interval, and a valley region of each of the two or more etching lines is coated with a conductive paste.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: September 22, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Ho Park, Bu Gon Shin, Eun Kyu Her
  • Patent number: 10739630
    Abstract: A touch display panel and a touch display device are provided. The touch display panel, comprising an array substrate and a color filter substrate are cell-assembled, and a liquid crystal layer positioned between the array substrate and the color filter substrate. The array substrate includes a first substrate, a black matrix layer, a touch sensing layer, a first electrode layer and a pixel electrode layer are sequentially positioned, the pixel electrode layer is nearby the liquid crystal layer, the first substrate layer is positioned on a side of the pixel electrode which far away the liquid crystal layer. The touch display panel using the first substrate for controlling the touch display panel displays image while touch, the touch electrode field and driving electrode file in the touch display panel are not effect to each other, such that avoids to decrease resolution of touch display panel.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 11, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yucheng Tsai, Zhou Zhang, Pan Xu, Changwen Ma
  • Patent number: 10714689
    Abstract: A production method for an OLED panel includes forming on an upper face side of a transparent substrate, a layered body including a resin layer, a TFT layer, an OLED layer and a sealing layer including an organic sealing film, and then irradiating the resin layer being in contact with the transparent substrate with a laser beam to separate the transparent substrate and the layered body. In the production method, the resin layer includes a first region to be irradiated with a laser beam at a first intensity P1 and a second region to be irradiated with a laser beam at a second intensity P2 greater than the first intensity, the first region overlaps with the organic sealing film, and the second region does not overlap with the organic sealing film.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tetsunori Tanaka
  • Patent number: 10706790
    Abstract: Provided is a novel display device without deterioration of display quality or a novel display device in which flickering due to a reduced refresh rate is suppressed. The display device includes a pixel for displaying a still image at a frame frequency of less than or equal to 1 Hz. The pixel includes a liquid crystal layer. The liquid crystal layer includes a molecule whose dipole moment is greater than or equal to 0 debye and less than or equal to 3 debye. Thus, flickering due to a reduced refresh rate can be suppressed, which leads to an improvement in display quality.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: July 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuhiro Niikura, Makoto Ikenaga, Daisuke Kubota, Ryo Hatsumi
  • Patent number: 10690966
    Abstract: A material of alignment film, a method of fabricating a liquid crystal display panel, and a liquid crystal display panel are provided. The material of alignment film is obtained by mixing a polymerizable monomer in the polyamic acid solution, thus is easy to fabricate. The method of fabricating the liquid crystal display panel obtains an alignment film including a polyimide film and polymer protrusions located on a surface of the polyimide film by coating the material of alignment film on a substrate, and going through a series of processes; the alignment film can allow liquid crystal molecules arrange in vertical alignment and generate a pre-inclination angle, and a risk of the polymerizable monomer contaminating the liquid crystal molecules does not exist, so as to enhance quality of the liquid crystal display panel. The liquid crystal display panel has a simple structure and good alignment effect, and has excellent display quality.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 23, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Song Lan
  • Patent number: 10684489
    Abstract: The invention relates to a light modulation device for a display for representing two- and/or three-dimensional image content or image sequences. The light modulation device comprises a light modulator and a controller. The phase and/or the amplitude of a light wave field, which is substantially collimated, can be varied by means of the light modulator depending on the location of the light modulator. The light modulator can be actuated by means of the control device. According to the invention, in the direction of propagation of the light wave field, at least one diffracting unit is arranged downstream of the light modulator. The diffracting unit has a variable diffracting structure. By means of the diffracting structure, the light wave field varied by the light modulator can be diffracted in a variable and predeterminable manner. Further, the present invention relates to a display and a method for producing a light modulation device.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 16, 2020
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Bo Kroll, Norbert Leister, Gerald Futterer, Robert Missbach, Stephan Reichelt
  • Patent number: 10670902
    Abstract: A liquid crystal display device includes a thin film transistor (TFT) disposed on a substrate. The TFT is divided into pixel regions. Pixel electrodes are disposed in the pixel regions, respectively. The pixel electrodes are electrically connected with the TFT. A roof layer is disposed over the pixel electrodes. Fine spaces, which are spaced apart from each other, are each disposed between each of the pixel electrodes and the roof layer. The fine spaces include a first region and a second region that is below the first region. The second region includes a protrusion protruding in a direction substantially parallel to the substrate with respect to the first region. An alignment layer is disposed on an inner surface of each of the fine spaces. Liquid crystal molecules fill each of the fine spaces.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: June 2, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Boram Lee, Jiseong Yang, Taehwan Kim, Jonghwan Lee, Seokjoon Hong
  • Patent number: 10663805
    Abstract: A material of alignment film, a method of fabricating a liquid crystal display panel, and a liquid crystal display panel are provided. The material of alignment film is obtained by mixing a polymerizable monomer in the polyamic acid solution, thus is easy to fabricate. The method of fabricating the liquid crystal display panel obtains an alignment film including a polyimide film and polymer protrusions located on a surface of the polyimide film by coating the material of alignment film on a substrate, and going through a series of processes; the alignment film can allow liquid crystal molecules arrange in vertical alignment and generate a pre-inclination angle, and a risk of the polymerizable monomer contaminating the liquid crystal molecules does not exist, so as to enhance quality of the liquid crystal display panel. The liquid crystal display panel has a simple structure and good alignment effect, and has excellent display quality.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 26, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Song Lan
  • Patent number: 10656148
    Abstract: Chromonic azo dyes are particular types of chromonic molecules that are alignable homeotropically (aggregated molecules stack perpendicularly to the surface) on different types of substrates, often without the need of any special surface treatment. This feature enables the optimization of a detection device with increased sensitivity based of the alignment distortion created by a biological immune complex.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 19, 2020
    Assignee: Pathogen Systems, Inc.
    Inventor: Luana Tortora
  • Patent number: 10643513
    Abstract: An array substrate, a display panel and a test method thereof and a display device. The array substrate has a display region and a peripheral region and includes a first electrode layer and a first test line. The first electrode layer includes a plurality of first signal lines arranged along a first direction, and the first signal lines extend from the peripheral region to the display region; the first test line is provided in the peripheral region, and extends along the first direction; the first test line is overlapped with and insulated from the first signal lines.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 5, 2020
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Xiang Wang, Wei Xu, Yu e Ke
  • Patent number: 10642089
    Abstract: The present disclosure provides a liquid crystal display panel, an liquid crystal display apparatus, and a method for manufacturing same. The liquid crystal display panel includes a substrate, a black matrix disposed on the substrate, an alignment layer disposed on the black matrix, and a groove disposed on the black matrix and arranged around the alignment layer, wherein the sealant is arranged on an outside of the groove, to prevent diffusion of the alignment layer according to feature of the groove, avoid overlap of the alignment layer and the sealant and improve the cell quality.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: May 5, 2020
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yu-Jen Chen
  • Patent number: 10634953
    Abstract: According to one embodiment, a display device includes a first substrate including a scanning line and a pixel electrode, a second substrate opposed to the first substrate, and a liquid crystal layer held between the first substrate and the second substrate and including streaky polymers and liquid crystal molecules, wherein the liquid crystal layer includes a first area overlapping the scanning line and a second area overlapping the pixel electrode, and the polymers of the first area are denser than the polymers of the second area.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 28, 2020
    Assignee: Japan Display Inc.
    Inventors: Kentaro Okuyama, Yudai Numata
  • Patent number: 10629324
    Abstract: New stretchable electrically conductive composite materials comprising at least one polymer and a plurality of nanoparticles are provided, which exhibit high conductivity even at high strain levels. The composite may comprise polyurethane as the polymer and spherical gold nanoparticles. Such materials have conductivity levels as high as 11,000 Scm?1 at 0% strain and 2,400 Scm?1 at 110% strain. Furthermore, certain embodiments of the composite have a maximum tensile strain of 480% while still exhibiting conductivity of 35 Scm?1. The inventive materials are highly flexible, highly conductive and suitable for a variety of applications, especially for advanced medical devices, implants, and flexible electronics. The disclosure also provides methods of making such stretchable electrically conductive nanocomposites, including formation by layer-by-layer and vacuum assisted flocculation.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: April 21, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Nicholas A. Kotov, Yoonseob Kim, Jian Zhu, Matthew Di Prima, Bongjun Yeom
  • Patent number: 10620496
    Abstract: An array substrate, a manufacturing method thereof and a liquid crystal display panel are provided. The array substrate comprises a source-drain layer stacked, a pixel electrode layer and an interval layer, comprising a via hole structure. The pixel electrode layer is electrically connected to the source-drain layer through the via hole structure, comprising a via hole and a plurality of drainage grooves provided at intervals on an edge of the via hole. The pixel electrode layer forms a groove corresponding to the via hole, and the pixel electrode layer forms a sub-drainage groove corresponding to each drainage groove. When the alignment layer is disposed on the pixel electrode, an alignment liquid for forming an alignment layer flow into the groove through a sub-drainage groove, so that the groove can also cover an alignment film and ensure a normal display of the liquid crystal display panel formed by the array substrate.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 14, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renpeng Li, Yoneda Kotaro