Patents Examined by Sophie Hon
  • Patent number: 11029568
    Abstract: A photoalignment agent is provided. The photoalignment agent includes a copolymer of ii) at least one of a cyclobutanedianhydride (CBDA) and a cyclobutanedianhydride (CBDA) derivative, and ii) a diamine, and the diamine includes an electron donor group.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Yeong Rong Park, Mi Hwa Lee, Jun Woo Lee, Baek Kyun Jeon
  • Patent number: 11016345
    Abstract: A liquid crystal cell 10A according to the present invention includes: a pair of substrates 11 and 12 facing each other and having alignment films 11a and 12a formed on surfaces of the substrates, respectively, the surfaces facing each other; and a liquid crystal layer LC interposed between the substrates 11 and 12. The alignment films 11a and 12a contain a polymer for alignment films which has a hydrazide functional group represented by Chemical Formula (1).
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 25, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Tomonori Itoh, Takashi Satoh
  • Patent number: 11008485
    Abstract: A pressure-sensitive adhesive composition for an image display panel, a pressure-sensitive adhesive layer for an image display panel, and an optical film provided with a pressure-sensitive adhesive layer are disclosed which are free of problems regarding durability and defective appearance caused by an antistatic agent (conductive agent), and which have superior antistatic properties so as to be usable for applications such as in an image display panel. An image display panel is also disclosed in which the optical film provided with a pressure-sensitive adhesive layer is attached to the surface of the image display panel in contact with the pressure-sensitive adhesive layer without an interposed conductive layer, and a liquid crystal display device using the image display panel. Further, a liquid crystal display device is disclosed with a touch sensing function using the image display panel that can be used as various input display devices such as mobile devices.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: May 18, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Masakuni Fujita, Satoshi Yamamoto, Yusuke Toyama
  • Patent number: 11002897
    Abstract: A polarizing plate including a polarizer, and a protective film layer formed on at least one surface of the polarizer, wherein the protective film layer is formed of a protective resin having a volatile component content of 0.03% by weight or less, and a thickness d of the protective film layer satisfies the formula (1): 0.01 ?m?d?0.5 ?m (1).
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 11, 2021
    Assignee: ZEON CORPORATION
    Inventor: Hiromu Mashima
  • Patent number: 11003017
    Abstract: The present specification relates to a polarizer protective film including a photocurable resin including a multifunctional acrylate-based monomer and an acrylate-based oligomer having an elongation of 5% to 200%; and a dye or a pigment having a maximum absorption wavelength of 580 nm to 610 nm, and a polarizing plate and a liquid crystal display device including the same.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 11, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hanna Lee, Yeongrae Chang, Hye Min Kim
  • Patent number: 10996386
    Abstract: The optical film according to the present invention has a feature that it has high adhesiveness and excellent property of blocking UV light even while using an acrylic resin having no ring structure in the main chain.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 4, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sang Min Kwak, Seong Wook Kang, Dong Wan Kim, Kil An Jung, Ki Joong Lee, Min Su Park, Jong Sung Park
  • Patent number: 10996532
    Abstract: The liquid crystal diffraction grating includes: paired substrates each including an electrode; a liquid crystal layer being held between the substrates; a sealant; and an alignment-controlling layer being disposed in a region surrounded by the sealant in a plan view and being in contact with the liquid crystal layer between the liquid crystal layer and each of the substrates, the alignment-controlling layer being configured to align liquid crystal molecules in a direction parallel to the substrates and containing a polymer of at least one monomer, the orientation of the liquid crystal molecules periodically rotating in at least one direction in a plan view of the liquid crystal layer in a state where the liquid crystal molecules are aligned in the direction parallel to the substrates.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 4, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Kiyoshi Minoura, Hiroshi Tsuchiya
  • Patent number: 10989964
    Abstract: The present invention provides a liquid crystal display device that can retain a favorable VHR and a low residual DC voltage and minimize display unevenness such as stains and image sticking, in long-term use at high temperatures.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 27, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masanobu Mizusaki, Hiroshi Tsuchiya, Katsuya Ogawa, Toshiaki Fujihara
  • Patent number: 10962821
    Abstract: A display device includes a first base substrate; a liquid crystal layer disposed on the first base substrate; an overcoat layer disposed on the liquid crystal layer and including epoxy polymer; a color conversion layer disposed on the overcoat layer; and a second base substrate disposed on the color conversion layer. The epoxy polymer is a polymer obtained by polymerizing 1 part to 50 parts by weight of a cardo-based binder resin; 1 part to 50 parts by weight of an epoxy-based monomer; and 1 part to 50 parts by weight of a bisphenol-based resin, with respect to 100 parts by weight.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 30, 2021
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon
  • Patent number: 10948780
    Abstract: A liquid crystal element includes a pair of substrates disposed to face each other, a liquid crystal layer disposed between the pair of substrates, and a liquid crystal alignment layer provided on each of the liquid crystal layer sides of the pair of substrates. The liquid crystal layer includes a compound having an alkenyl structure and a compound having a terphenyl ring structure, or includes a compound having an alkenyl structure and a terphenyl ring structure in the same molecule, and the liquid crystal alignment layer is a layer comprising a liquid crystal alignment agent containing a polymer (P) which has at least one selected from the group consisting of a radical polymerizable group, a photoinitiator group, a nitrogen-containing heterocyclic ring (excluding imide rings in polyimides), an amino group and a protected amino group.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 16, 2021
    Assignee: JSR CORPORATION
    Inventor: Yuusuke Uesaka
  • Patent number: 10927260
    Abstract: Provided are a coloring composition with which a light absorption anisotropic film having excellent durability can be formed, a light absorption anisotropic film, a laminate, and an image display device. A coloring composition according to the invention contains a dichroic dye compound having a structure represented by Formula (1D) and a liquid crystalline compound.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 23, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Wataru Hoshino, Masaki Ota, Masatoshi Mizumura, Takashi Katou, Yoshiaki Takada, Yoji Ito, Daisuke Kashiwagi, Yuya Hamaguchi
  • Patent number: 10928662
    Abstract: A display apparatus includes a display panel which displays an image with light; and a side sealing member which is configured to block the light. The side sealing member contacts at least one side surface of the display panel to cover the one side surface. The side sealing member has an elongation of about 100% to about 300% inclusive.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Woosuk Seo, Yong-hoon Kwon, Seokhyun Nam, Byoungdae Ye
  • Patent number: 10921648
    Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx?ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: February 16, 2021
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takashi Kuroda, Seiichi Isojima, Norinaga Nakamura
  • Patent number: 10914988
    Abstract: A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 9, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xinhui Zhong, Yungjui Lee
  • Patent number: 10901130
    Abstract: An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: January 26, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dae Gyu Lee, Yong Un Jung
  • Patent number: 10895775
    Abstract: The invention is directed to a polarizing plate protective film containing a polymer having at least one of an ester bond and an amide bond and a compound which generates a base by an action of an acid, a polarizing plate including the polarizing plate protective film and a polarizer, a liquid crystal display device including a liquid crystal cell and the polarizing plate, and a production method of a polarizing plate protective film including producing the Polarizing plate protective film with a composition containing a polymer having at least one of an ester bond and an amide bond and a compound which generates a base by an action of an acid.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 19, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yoshinori Maeda, Mikio Nakagawa
  • Patent number: 10890701
    Abstract: The present invention is to provide a laminate that includes a polarizer and a photo alignment film and is excellent in the moisture-heat resistance of the polarizer, a method of producing a laminate, a polarizing plate, a liquid crystal display device, and an organic EL display device including the laminate. The laminate of the present invention includes a polarizer, and a photo alignment film that is adjacently arranged on the polarizer, the photo alignment film is a layer formed by bringing a composition for forming a photo alignment film into direct contact with a surface of the polarizer, and the composition for forming a photo alignment film contains Compound A having a photo-aligned group and Compound B having a crosslinking group, or Compound C having a photo-aligned group and a crosslinking group.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: January 12, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masataka Yoshizawa, Akira Yamamoto
  • Patent number: 10884529
    Abstract: Embodiments of an electronic device with an assembled multi-layered display screen and methods for a multi-layered screen assembly are disclosed herein. In one instance, the method may include disposing a frame for a display screen upon a base comprising a substantially flat surface and substantially corresponding to a shape of the display screen, assembling the display screen by stacking multiple components within the frame such that the assembled display screen faces the base, and delivering a bonding substance into the frame such that the bonding substance substantially fills the frame to the depth of the frame and around the stacked multiple components. The substance may be allowed to harden to a solid state thus bonding the assembly. The frame may have a depth substantially corresponding to a thickness of the assembled display screen. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: January 5, 2021
    Assignee: Amazon Technologies, Inc.
    Inventor: Sukwon Noh
  • Patent number: 10852584
    Abstract: The embodiment relates to a quantum dot-polymer composite and a method for producing the same, wherein the quantum dot-polymer composite includes: a first phase made of a matrix resin; a second phase dispersed and distributed in the first phase, comprising a quantum dot, and having a spherical shape; and a micro scattering agent distributed in an interface between the first phase and the second phase along a surface of the second phase.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 1, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Byoungkwon Cho, Jinmok Oh, Dongseon Jang, Juchul Lee
  • Patent number: 10852579
    Abstract: A polyester protection film for a polarising plate that has a yellow index (YI) of 1.0 or less, and that includes an ultraviolet absorber of Chemical Formula 1 and an ultraviolet absorber of Chemical Formula 2; a polarising plate comprising the same; and a liquid crystal display apparatus comprising the same are provided.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 1, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Bae Wook Lee