Patents Examined by Ruiyun Zhang
  • Patent number: 11111387
    Abstract: The present invention relates to a polymer composition which contains (A) a photosensitive side-chain polymer that exhibits liquid crystallinity in a predetermined temperature range and has a repeating unit comprising a vertically aligning group, and (B) an organic solvent. The present invention provides: a liquid crystal alignment film which has excellent tilt angle characteristics, while being provided with alignment controllability with high efficiency; a polymer composition which enables the achievement of this liquid crystal alignment film; a twisted nematic liquid crystal display element; and a vertical field switching mode liquid crystal display element.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 7, 2021
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventor: Tatsuya Nagi
  • Patent number: 11111438
    Abstract: The embodiment of the present invention discloses a display panel and a display device. The present invention, by designing a supportive blocking wall, divides a liquid crystal cell into regions, and fills vertical alignment agents with corresponding structures in the different regions of the liquid crystal cell to adjust alignment ability of liquid crystal molecules in gap regions among different liquid crystal layers such that the liquid crystal molecules in the different regions have the same alignment ability to mitigate phenomenon of poor alignment of the liquid crystal molecules and improve display effect of the display panel.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: September 7, 2021
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Song Lan
  • 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: 11116096
    Abstract: A medium for binding components in an assembly of an electronic device, a method of preparing the same, a display assembly of an electronic device, and a system for simulating mechanical behaviours of the electronic device and the medium. The medium including: a first layer of material defining a first portion arranged to connect with a first electronic component of the assembly; and a second layer of material defining a second portion having a set of mechanical properties with one or more values different from those in the first portion, and the second layer of material is arranged to connect with a second electronic component of the assembly; wherein the combination of the first layer of material and the second layer of material is arranged to minimize stress established in the first electronic component when the first electronic component combines with the second electronic component.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: September 7, 2021
    Assignee: City University of Hong Kong
    Inventors: Xinrui Niu, Bo Xu
  • Patent number: 11104601
    Abstract: A foldable electronic device module that includes a glass cover element having a thickness from about 25 ?m to about 200 ?m, an elastic modulus from about 20 GPa to about 140 GPa. The module further includes: a stack having a thickness from about 50 ?m to about 600 ?m; and a first adhesive joining the stack to a second primary surface of the cover element, the adhesive having a shear modulus from about 0.01 MPa to about 1 GPa and a glass transition temperature of at least 80 C. Further, the device module includes a flex-bond residual stress region through the thickness, and within a central region, of the cover element that ranges from a maximum compressive residual stress at the second primary surface to a maximum tensile residual stress at a first primary surface of the element along a central bend axis of the cover element.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: August 31, 2021
    Assignee: Corning Incorporated
    Inventors: Guangli Hu, Dhananjay Joshi, Eunyoung Park, Yousef Kayed Qaroush
  • Patent number: 11098164
    Abstract: The present invention relates to siloxane polymer, copolymer or oligomer for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, and which derives from at least one monomer of formula (I), to compositions thereof, to a process for the preparation of the linear, branched or crosslinked siloxane polymer, and to its use for optical and electro optical devices, such as liquid crystal devices (LCDs):
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: August 24, 2021
    Assignee: ROLIC TECHNOLOGIES AG
    Inventor: Sabrina Chappellet
  • Patent number: 11091674
    Abstract: A multilayer adhesive tape exhibiting high step coverage and having both high reworkability and excellent punchability is provided. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which a glass transition temperature of the intermediate adhesive layer is ?40° C. or more and 0° C. or less, a glass transition temperature of each of the first outer adhesive layer and the second outer adhesive layer is ?60° C. or more and ?20° C. or less, and a difference in glass transition temperature between each of the first outer adhesive layer and the second outer adhesive layer and the intermediate adhesive layer is 5° C. or more and 25° C. or less.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 17, 2021
    Inventors: Sle Lee, Dong Hoon Lim, Ju Yong Seo, Jun Man Choi, Woo Yeon Kim, Ho Kyung Song, Jae Sung Hong, Jang Soon Kim, Kwang Su Seo
  • Patent number: 11079631
    Abstract: A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 3, 2021
    Assignees: SOUTH CHINA NORMAL UNIVERSITY, SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD.
    Inventors: Guofu Zhou, Laurens De Haan, Pei Zhang, Wei Zhao
  • Patent number: 11078424
    Abstract: Provided is a liquid crystal aligning agent composition including a liquid crystal polymer together with a polyimide-based (co)polymer, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 3, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeongseuk Yun, Jung Ho Jo, Jun Young Yoon, Hoonseo Park
  • Patent number: 11072741
    Abstract: An optically anisotropic layer is formed by a liquid crystal compound represented by General Formula 1, in which the long axes of the molecules are oriented. wherein L1 and L2 independently represent a linking group having a carbonyl group; F1 and F2 independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom; n and m independently represent an integer from 0 to 4; a and b independently represent an integer from 1 to 4; T1 and T2 independently represent a spacer portion including a straight chain or branched alkylene or alkylene oxide group having 2 to 20 carbon atoms; and Ar represents a divalent group having at least one aromatic ring selected from a group consisting of aromatic hydrocarbon rings and aromatic heterocycles, the number of ? electrons in the Ar group being 8 or greater.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 27, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Matsuyama, Ryoji Goto, Hiroyuki Ishikawa, Keita Takahashi, Taiji Katsumata
  • Patent number: 11061271
    Abstract: The present invention discloses a polarizing device, a preparation method thereof, a display panel, and a display device. The polarizing device includes: a polarizing functional layer; and an auxiliary functional layer disposed on the polarizing functional layer, wherein the auxiliary functional layer includes a host material and an additive, a thermal expansion coefficient of the additive is less than that of the host material, and a thermal conductivity of the additive is greater than that of the host material. In the above way, the present invention can improve stress bending of the polarizing device in a severe environment such as high temperature and high humidity, and improve quality and reliability of product.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 13, 2021
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Haijun Wang
  • Patent number: 11053354
    Abstract: The present invention provides a liquid crystal display device with a high degree of freedom in molecular structure design of an alignment film and with reduced image sticking. The liquid crystal display device includes a pair of substrates; a liquid crystal layer held between the substrates; an alignment film disposed on a liquid crystal layer side surface of at least one of the substrates; and a polymer layer disposed between the liquid crystal layer and the alignment film, the alignment film containing a first polymer containing at least one structure represented by the following formula (1) in a side chain, wherein R1 represents a C3-C6 branched or cyclic alkylene group, and a hydrogen atom at a para position to a carbonyl group in the phenyl group is optionally replaced.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: July 6, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Yuko Teraoka, Tsuyoshi Okazaki
  • Patent number: 11046056
    Abstract: The invention relates to a sheetlike composite (100) comprising a first composite region (101) and a second composite region (102); wherein the first composite region (101) comprises, as mutually superposed layers from an outer surface (104) of the first composite region (101) to an inner surface (103) of the first composite region (101): a) a thermoplastic layer A (110), b) a carrier layer (108), c) a barrier layer (106), and d) an inner polymer layer (105); wherein the outer surface (104) of the first composite region (101) is a surface of the thermoplastic layer A (110); wherein the second composite region (102) comprises, as mutually superposed layers from an outer surface (104) of the second composite region (102) to an inner surface (103) of the second composite region (102): A) a first thermoplastic layer B (109), B) the carrier layer (108); C) the barrier layer (106); and D) the inner polymer layer (105); wherein the outer surface (104) of the second composite region (102) is a surface of the first th
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: June 29, 2021
    Assignee: SIG TECHNOLOGY AG
    Inventors: Dirk Schibull, Michael Wolters
  • Patent number: 11048125
    Abstract: A liquid crystal cell includes a color filter substrate, an array substrate, a liquid crystal layer, and two alignment control layers. The color filter substrate includes a color conversion layer for converting color of light but not include an alignment film containing polyamic acid or polyamide. The array substrate is opposed to the color filter substrate. The alignment control layers are formed on an inner surface of the color filter substrate and an inner surface of the array substrate, respectively. The alignment control layers contact the liquid crystal layer. The alignment control layers are made of reactants of radical polymerizable monomers added to a liquid crystal material for forming the liquid crystal layer. The alignment control layers control orientations of liquid crystal molecules in the liquid crystal layer. The radical polymerizable monomers include radical polymerizable monomers having ultraviolet-ray absorbing functional groups.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 29, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Kiyoshi Minoura
  • Patent number: 11043638
    Abstract: An organic electroluminescence device includes an anode, an emitting layer and a cathode, in which the emitting layer includes a first compound and a second compound. The first compound is a delayed-fluorescent compound. The second compound is represented by a formula (2) below, in which X is a nitrogen atom or a carbon atom bonded to Y; R21 to R26 are each independently a hydrogen atom or a substituent; Z21 and Z22 are each independently selected from the group consisting of a halogen atom, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, and a substituted or unsubstituted aryloxy group.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 22, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Toshinari Ogiwara, Kei Yoshida, Yuichiro Kawamura
  • Patent number: 11024811
    Abstract: A composition of materials including a first compound having a structure according to Formula I
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 1, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Suman Layek, Pierre-Luc T. Boudreault, Zeinab Elshenawy, Gregg Kottas, Alexey Borisovich Dyatkin, Scott Joseph, Vadim Adamovich, Chuanjun Xia, Ting-Chih Wang, Walter Yeager
  • Patent number: 11015095
    Abstract: The present invention relates to a photo-curable adhesive composition comprising a (meth)acrylate capped aliphatic polyurethane having an average number of ethylenically unsaturated groups less than 1, a mono-functional (meth)acrylate monomer or oligomer and a photoinitiator. The adhesive composition can be used in a method of bonding a substrate to a liquid crystal display. The adhesive composition according to the present invention has improved side curing depth.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 25, 2021
    Assignees: HENKEL AG & CO. KGAA, HENKEL IP & HOLDING GMBH
    Inventors: Chao Hu, Jiangbo Ouyang, Junwei Yang
  • Patent number: 11009750
    Abstract: The present invention provides a liquid crystal display device that includes: a pair of substrates; a liquid crystal layer held between the substrates; an alignment film disposed on a liquid crystal layer side surface of at least one of the substrates; and a polymer layer disposed between the liquid crystal layer and the alignment film, the liquid crystal layer containing liquid crystal compounds aligned in a predetermined direction with no voltage applied, the alignment film containing a first polymer containing in its main chain at least one selected from a polyamic acid structure and a polyimide structure, the first polymer containing a functional group that functions as a polymerization initiator, the polymer layer containing a second polymer obtained by polymerizing at least one monomer containing a chalcone group.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 18, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Patent number: 11001653
    Abstract: An object of the present invention is to provide an optical film having an optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. This optical film of the present invention is an optical film at least having an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and the optically anisotropic layer has a density of 1.20 g/cm3 or more and a crosslinking point density of 0.0016 mol/cm3 or more.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 11, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Ayako Muramatsu, Hiroshi Sato, Kengo Saito, Takashi Komiyama, Keita Takahashi
  • Patent number: 11002896
    Abstract: Disclosed is a retardation film which shows a high light selective absorbency to visible rays having short wavelengths near 400 nm to have a high light resistance, and which can give, when used in a display device, good display properties to the display device. This film is a retardation film, satisfying all of the following formulae (1) to (4): 2?A(380) (1), 0.5?A(400) (2), 0.4?A(420)/A(400) (3), and 100 nm?Re(550)?170 nm (4), in which each A(?) represents the absorbance of the film at a wavelength ? nm, and Re (550) represents the in-plane retardation value of the film to a light ray having a wavelength of 550 nm.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: May 11, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Nobuyuki Hatanaka, Shinnosuke Yoshioka, Shoichi Ozawa, Tatsuaki Kasai