Compensator Or Retarder (i.e., Not Using Liquid Crystal Cell) Patents (Class 349/117)
  • Patent number: 10338426
    Abstract: According to an aspect of the present invention, there is provided a light diffusion member which includes a light diffusion film, a polarizing film, and a retardation film. The light diffusion film includes a first substrate, a light diffusion portion, and a light shielding layer. The polarizing film includes a second substrate and a polarization layer. The retardation film includes a third substrate and a retardation layer. The retardation layer is formed from a birefringence body which has optically-negative uniaxiality. An alignment direction of the birefringence body is different in a thickness direction thereof. A slow axis of the retardation layer is positioned at azimuth between a transmission axis and an absorption axis of the polarization layer.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 2, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Asaoka, Tsuyoshi Maeda, Shohei Katsuta, Emi Yamamoto, Sho Ochi
  • Patent number: 10330967
    Abstract: In a display device, a plurality of display panels displaying an image formed by a plurality of pixels are coupled to each other. Each of the display panels includes a display surface having a display region and a non-display region surrounding the display region, and a polarizer provided on the display surface. The polarizer covers the display region and a part of the polarizer extends to the non-display region. A pair of display panels to be coupled to each other are arranged such that parts of the non-display regions overlap with each other. One display panel is located at a display surface side of the other display panel, and the other display panel is located at a rear surface side of the one display panel, the rear surface side being an opposite side to the display surface side.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 25, 2019
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Shinji Fujisawa
  • Patent number: 10324244
    Abstract: An exemplary embodiment of the present invention provides a polarizer including a first retardation layer and a second retardation layer having different retardation values with respect to each other, a polarization layer disposed on the first retardation layer, a first compensation layer disposed between the first retardation layer and the second retardation layer, and a second compensation layer disposed below the second retardation layer.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: June 18, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Young Lee, Sung June Park, In Seo Kee, Jin Kyu Kim
  • Patent number: 10317581
    Abstract: A composition includes a first population of strongly plasmonic nanorods and a second population of strongly plasmonic nanorods. The two populations each have a size range of the nanorods, creating a size range gap between the two populations. This size range gap creates a transparency window that can be seen in an extinction spectrum of the composition, which is characterized by the sizes of the nanorods in both populations. The composition may be included in a filter providing a transparency to a defined wavelength characterized by the size range gap of the nanorods.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: June 11, 2019
    Assignee: Ohio University
    Inventor: Alexander Govorov
  • Patent number: 10317692
    Abstract: The present application discloses a stereoscopic display for naked eyes includes a two-dimensional display panel, a stereoscopic module for the naked eyes and a light converting module. The stereoscopic module for the naked eyes is deposited between the two-dimensional display panel and the light converting module. The two-dimensional display panel is used to output a two-dimensional image based on the linearly polarized light; the stereoscopic module for the naked eyes is used to output a three-dimensional image based on the linearly polarized light. The light converting module is used to convert the linearly polarized light to a circularly polarized light and output a three-dimensional image based on the circularly polarized light.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Guowei Zha
  • Patent number: 10317599
    Abstract: A wavelength plate, wherein first birefringent layer and second birefringent layer are laminated such that in-plane directions of optical axes of first birefringent layer and second birefringent layer cross each other, wherein the wavelength plate satisfies formulae (1), (2), (3), and (4), and wherein at least one of first birefringent layer and second birefringent layer is obliquely-deposited birefringent layer formed by oblique deposition, ?n1×t1=?/2??(1) 1.7?(?n1×t1)/(?n2×t2)?2.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 11, 2019
    Assignee: DEXERIALS CORPORATION
    Inventors: Nobuyuki Koike, Masatoshi Sasaki, Akio Takada
  • Patent number: 10317693
    Abstract: A directional backlight unit includes: a light source configured to emit light; a light guide plate including: an incident surface on which light emitted by the light source is incident, an emission surface from which the light incident on the incident surface is emitted, and a reflective surface facing the emission surface; a reflective polarizer provided on the emission surface and configured to transmit a portion of the light as first polarized light having a first polarization direction and reflect another portion of the light as second polarized light having a second polarization direction and being perpendicular to the first polarized light; and a diffractor configured to diffract the first polarized light transmitted through the reflective polarizer toward a plurality of viewing zones.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunghoon Lee, Joonyong Park, Bongsu Shin, Dongouk Kim, Jihyun Bae, Dongsik Shim, Jaeseung Chung
  • Patent number: 10302843
    Abstract: Provided is a light concentrating module capable of reducing bending, comprising: a reflective polarization sheet layered with a plurality of stacks having different refractive indexes, so as to selectively transmit light, and having both sides of which the contraction rates are different; and a first light concentrating sheet having a first structural pattern in which first unit light concentrating bodies, of which cross-sectional areas gradually decrease towards an upper part thereof, are successively repeated, wherein the first unit light concentrating bodies are attached to one surface of the reflective polarization sheet, thereby reducing the contracting and bending of the reflective polarization sheet according to a rise in the temperature, caused by a difference between the contraction rate of the first light concentrating sheet and the contraction rate of one surface of the reflective polarization sheet.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 28, 2019
    Assignee: LMS Co., Lt.d
    Inventors: Eun Mi Lee, Jang Hee Cho
  • Patent number: 10295860
    Abstract: The present disclosure discloses a private display device, which comprises: a color film substrate and an array substrate provided to a box; a liquid crystal provided between the color film substrate and the array substrate; a first polarizing film provided on surface of the color film substrate facing away from the array substrate; a first quarter wave plate provided on the surface of the array substrate facing away from the color film substrate; wherein the direction of the absorption axis of the first polarizing film is different from the direction of the optical axis of the first quarter wave plate. The present disclosure also discloses a decrypted viewing device and a display system.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 21, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Bo Hai
  • Patent number: 10281771
    Abstract: In a liquid crystal display device having an alignment film subjected to an optical alignment process, the frame area can be reduced while maintaining the reliability of the sealing portion. To achieve this, in the display area, the alignment process is performed with UV light on the alignment film, to form an area in which the alignment film is not formed in the opposing first and second sides, and to form an area in which the amount of UV light irradiation on the alignment film is one fourth or less of the display area in the opposing third and fourth sides. In the first and second sides, the sealing material overlaps the area in which the alignment film is not formed. In the third and fourth sides, the sealing material overlaps the area in which the amount of UV light irradiation is one fourth or less of the display area.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: May 7, 2019
    Assignee: Japan Display Inc.
    Inventors: Hidehiro Sonoda, Noboru Kunimatsu, Takenori Hirota, Yosuke Hyodo, Yasuo Imanishi, Yasushi Tomioka
  • Patent number: 10284826
    Abstract: An image sensor, and an apparatus and method of acquiring an image by using the image sensor are provided. The image sensor includes a color filter having an array of a plurality of types of color filter elements, where each of the color filter elements transmits visible light in a certain wavelength band and blocks visible light outside the certain wavelength band; a photoelectric conversion cell array that detects light that has been transmitted through the color filter; and a modulator, disposed on the photoelectric conversion cell array, which changes a rate of light transmitted to the photoelectric conversion cell array based on an applied voltage.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 7, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunghyun Nam, Yunhee Kim, Sookyoung Roh, Hongkyu Park, Seokho Yun
  • Patent number: 10283536
    Abstract: A method for manufacturing an array substrate includes (S1) forming a pattern including a gate electrode and a gate line, (S2) forming an insulating layer, (S3) forming a pattern including an active layer, where the region where the active layer is arranged includes a first region corresponding to the gate electrode and second regions arranged on both sides of the first region, (S4) forming a mask pattern including a hollowed-out portion, a first portion and a second portion, wherein the second portion has a thickness smaller than the first portion, (S5) etching the insulating layer to form a via hole for exposing a portion of the gate line, and (S6) ashing a portion of the mask pattern corresponding to the second region to remove the portion of the mask pattern corresponding to the second region, and implanting ions into the active layer.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 7, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventor: Fuqiang Li
  • Patent number: 10261181
    Abstract: A laser radar system capable of active polarization comprises a signal processing unit for sending a control signal; a laser emitting unit for emitting a first laser to a target after receiving the control signal, wherein the laser emitting unit comprises a liquid crystal polarization driver and a liquid crystal polarization component group, and the liquid crystal polarization driver controls a phase delay of the liquid crystal polarization component group to therefore change a polarized state of the first laser; and a laser receiving unit for receiving a second laser reflected off the target and analyzing polarization information of the second laser through the signal processing unit to evaluate surface characteristics of the target.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 16, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Te-Yuan Chung, Ruoh-Rou Chang, Shih-Che Chien, Yu-Sung Hsiao
  • Patent number: 10261363
    Abstract: The present disclosure proposes an optical compensation film for a liquid crystal display, including a first C-plate arranged on one side of a liquid crystal panel, a first polyvinyl alcohol layer arranged outside the first C-plate, a second C-plate arranged on the other side of the liquid crystal panel, an A-plate arranged outside the second C-plate and a second polyvinyl alcohol layer arranged outside the A-plate, wherein the in-plane compensation value for optical path difference of the A-plate lies in the range of [92, 184] nm, the compensation value for optical path difference in the thickness direction of the A-plate lies in the range of [46, 92] nm. The present disclosure also proposes a liquid crystal display including the above-mentioned optical compensation film for reducing light leakage and increasing contrast.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chih-Tsung Kang, Bo Hai
  • Patent number: 10254605
    Abstract: An advanced super dimension switch (ADS) liquid crystal display device, a first substrate, a second substrate disposed opposite to the first substrate, a first polarizing sheet attached onto the first substrate, and a second polarizing sheet attached onto the second substrate; the ADS liquid crystal display device further comprises a graphene film, and the graphene film is provided within the second polarizing sheet. Further disclosed is a method of manufacturing an ADS liquid crystal display device.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: April 9, 2019
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiongcan Zuo, Junhwan Lim, Junrui Zhang
  • Patent number: 10241364
    Abstract: The present invention is a liquid crystal display device including a first polarizer, a first protective layer, a first substrate, a first optical alignment film, a liquid crystal layer, a second optical alignment film, a second substrate including a signal electrode and an opposite electrode, a second protective layer, a second polarizer in this order, in which the layers satisfy the relationship nx=ny?nz, an in-plane retardation of each of optical alignment films is greater than or equal to 1 nm, given that R1 is a thickness-direction retardation of each of the protective layers and that R2 is the in-plane retardation of each of optical alignment films, the relationship R1?0.047R22?2.1R2+44.3 is satisfied, the liquid crystal layer has a positive dielectric anisotropy, and a transmission axis of the second polarizer is perpendicular to an initial alignment direction of the liquid crystal molecules.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: March 26, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kawahira, Isamu Miyake
  • Patent number: 10234612
    Abstract: A polarizing plate includes a polarizer and a protective film formed on at least one surface of the polarizer. A transverse direction (TD) shrinkage stress ratio SRA of the polarizing plate ranges from about 1% to about 10%, as calculated using Equation 1: SRA (%)=(S1/S2)×100??(1) In Equation 1, S1 is the TD shrinkage stress of the protective film, and S2 is the TD shrinkage stress of the polarizer.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventor: Jong Hoon Yeo
  • Patent number: 10228563
    Abstract: Embodiments of the present disclosure provide an optical medium, for enabling increase in the viewing field angle without increasing a thickness of a device. The optical medium includes: a substrate having an upper interface and a lower interface parallel to each other; a first anisotropic partially-reflective film and a second anisotropic partially-reflective film being parallel to each other and arranged between the upper interface and the lower interface of the substrate in an inclined way; and a total reflection film arranged within the substrate in a direction of inclination opposite to that of the first and second anisotropic partially-reflective films. Embodiments of the present disclosure further provide glasses including the optical medium and an imaging method for the glasses.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: March 12, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Shuxin Yu
  • Patent number: 10216056
    Abstract: Disclosed are an array substrate, a liquid crystal display panel, and a liquid crystal display device. The array substrate includes a plurality of data lines and a plurality of pixel units. Each data line is divided into multiple continuously connected data line segments, and each pixel unit has a pixel switch. Each data line segment is divided into a first section and a second section which are connected to each other end to end, the second section being located in a region of a pixel switch corresponding to the data line segment to which the second section belongs, the shape of the second section being in a shape of a curve.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 26, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yanyang Sun
  • Patent number: 10180518
    Abstract: The present invention relates to an optical film, a polarizing plate including the same, and a display device. The exemplary optical film may have a desired wavelength dispersion characteristic using positive and negative uniaxial retardation films satisfying a predetermined condition. In addition, the optical film has a desired wavelength dispersion characteristic, and thus may be utilized in various fields requiring delicate control of optical properties. For example, the optical film can be useful in the polarizing plate used to prevent reflection and ensure visibility in the display device.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: January 15, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Byoung Kun Jeon, Su Young Ryu, Moon Soo Park, Hyuk Yoon
  • Patent number: 10175116
    Abstract: An apparatus includes a liquid-crystal polarization interferometer that causes an optical path delay between a first and a second polarization of input light. The liquid-crystal polarization interferometer includes a liquid-crystal variable retarder that provides a variable retardance in response to a voltage applied across the liquid-crystal cell. First and second polarizers are located on opposing sides of the liquid-crystal cell. The apparatus includes an image sensor that senses interferograms based on output light that passes through the liquid-crystal polarization interferometer. The apparatus includes a color filter that filters one of the input light and the output light. The color filter has a spectral transmission characteristic that passes more light in a blue spectral region that in a red spectral region.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: January 8, 2019
    Assignee: Palo Alto Research Center Incorporated
    Inventor: Alex Hegyi
  • Patent number: 10173959
    Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two characteristics, and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio and a long service life; a liquid crystal composition contains a specific compound having a polymerizable group as a first component, and may contain a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: January 8, 2019
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yukihiro Fujita, Yoshimasa Furusato
  • Patent number: 10174129
    Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: January 8, 2019
    Assignee: Eastman Chemical Company
    Inventors: Charles Michael Buchanan, Norma Lindsey Buchanan, Robert Thomas Hembre, Juanelle Little Lambert, Michael Eugene Donelson, Maryna Grigorievna Gorbunova, Thauming Kuo, Bin Wang
  • Patent number: 10162099
    Abstract: A light guide block is provided made up of a plurality of light guide rods that are molded in a curable filler material, wherein for manufacturing the light guide block, the curable filler material is fillable into an at least half-open trough, the light guide rods, as plastic injection-molded parts or plastic molded parts, being molded onto surfaces of the trough that is made, at least partially or in sections, of light-conducting plastic.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 25, 2018
    Inventors: Dieter Christandl, Josef Christandl, Robert Hofer
  • Patent number: 10156671
    Abstract: There is provided a polarizing plate with a retardation layer being extremely thin and having excellent durability. A polarizing plate with a retardation layer includes a polarizer; a protective layer bonded onto one side of the polarizer through intermediation of a first adhesive layer; and a retardation layer bonded onto another side of the polarizer through intermediation of a second adhesive layer. The polarizer has a thickness of from 2 ?m to 12 ?m, a boric acid content of 18 wt % or more, an iodine content of 2.1 wt % or more, a single layer transmittance of 44.2% or more, a polarization degree of 98% or more, and an orientation function of 0.35 or more. The retardation layer has a thickness of 50 ?m or less and a birefringence ?nxy of 0.0025 or more. The first and second adhesive layer each has a thickness of 2 ?m or less.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: December 18, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventors: Takeharu Kitagawa, Takashi Shimizu, Shusaku Goto
  • Patent number: 10145998
    Abstract: A liquid crystal display device has a light source unit and a liquid crystal cell sandwiched by two polarizing plates. The light emitted by the light source unit has separated peaks in each of blue, green and red wavelength ranges. The green and red peaks have a full width at half maximum intensity of 20 nm or more. At least one of the polarizing plates has a polarizer and a protective film with a Re of 5,000 nm or more and low moisture permeability. The device exhibits excellent color reproducibility and prevents display nonuniformity under a high temperature and high humidity environment.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 4, 2018
    Assignee: FUJIFILM CORPORATION
    Inventors: Naoyoshi Yamada, Shinichi Nakai, Maki Mifune
  • Patent number: 10146085
    Abstract: A display device includes: a substrate; a display medium layer disposed on the substrate; and a polarizer having a first film, a second film and a third film sequentially laminated on the display medium layer. The second film connects to the first film. The third film connects to the second film. A first bottom surface of the first film has a first edge. A second bottom surface of the second film has a second edge. A third bottom surface of the third film has a third edge. A first minimum distance exists between projections of the first edge and the second edge on the substrate in a first direction perpendicular to a normal direction of the substrate, and a second minimum distance exists between the second edge and the third edge on the substrate in the first direction. The first minimum distance is different from the second minimum distance.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: December 4, 2018
    Assignee: INNOLUX CORPORATION
    Inventors: Hui-Chi Wang, Hsia-Ching Chu, Mei-Chun Shih
  • Patent number: 10146083
    Abstract: A liquid crystal display apparatus includes a liquid crystal display module and a top polarizer. The liquid crystal display module has a display module upper surface. The top polarizer is disposed on the display module upper surface, and has a reinforced surface. The boundary of the top polarizer is extended from boundary of the display module upper surface. The top polarizer includes a main body and a reinforced film. The reinforced film is formed on the surface of the main body, which is disposed away from the liquid crystal display module, in which the reinforced surface is the surface of the reinforced film, which is disposed away from the liquid crystal display module.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: December 4, 2018
    Assignees: INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD., GENERAL INTERFACE SOLUTION LIMITED
    Inventors: Zheng-Xiao Chen, Ching-Huang Lin
  • Patent number: 10132973
    Abstract: An elliptically polarizing plate includes a polarizing plate and a retardation plate. The elliptically polarizing plate satisfies the following: 0.8?P(450)/P(650)?1.2 P(550)?0.7 Re(450)<Re(550)<Re(650) 0.05<1?P(450)<0.3 Re(550) and Re(650) represent the front retardation at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(450), P(550) and P(650) represent the elliptically polarized light states (P(?)) at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(?)=tan {sin?1(I1(?)×sin ?(?)×sin 2??I2(?)×sin ?(?)×cos 2?)/I2(?))/2}. I1(?)=(10?A1(?)?10?A2(?))/2. I2(?)=(10?A1(?)+10?A2(?))/2. ?(?)=Re(?)/?×2?. A1(?) and A2(?) represent the absorbance in the transmission and adsorption axis directions, respectively, of the polarizing plate at wavelength (?). Re(?) represents the front retardation at wavelength (?). ? represents the angle formed by the polarizing plate absorption axis and the retardation plate slow axis.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: November 20, 2018
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Nobuyuki Hatanaka
  • Patent number: 10121992
    Abstract: The present invention provides a transparent displaying apparatus, which includes a transparent display (30/40) and a liquid crystal twisting layer (20) arranged on a back surface of the transparent display (30/40). The liquid crystal twisting layer (20) includes therein liquid crystal molecules that selectively exhibit two states of arrangement including a first one of being substantially perpendicular to the transparent display (30/40) and a second one of being substantially parallel to the transparent display (30/40).
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 6, 2018
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guoren Hu
  • Patent number: 10108049
    Abstract: Devices and methods related to high-contrast liquid crystal displays (LCDs) are provided. For example, such an electronic device may include an LCD with two liquid crystal alignment layers not symmetric to one another and upper and lower polarizing layers respectively above and below the alignment layers. Light transmittance through the plurality of pixels may increase monotonically with gray scale voltage. The display may operate using a gray scale level 0 voltage higher than a minimum gray scale level 0 voltage capability of the display. Additionally or alternatively, liquid crystal molecular alignment axes of the two alignment layers may be offset from one another by an angle other than a multiple of 180 degrees. Additionally or alternatively, a first polarizing axis of the upper polarizing layer or a second polarizing axis of the lower polarizing layer, or both, may be neither parallel nor perpendicular to one of the liquid crystal molecular alignment axes.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: EnkhAmgalan Dorjgotov, Zhibing Ge, Ming Xu, Cheng Chen, Young Bae Park, John Z. Zhong, Wei Chen, Shawn Robert Gettemy
  • Patent number: 10096801
    Abstract: The present application discloses a display device having a metal pattern on a substrate of a display device and a light absorbing layer positioned to absorb light reflected by the metal pattern, and a manufacturing method thereof. The light absorbing layer has a pattern corresponding to at least a portion of the metal pattern.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: October 9, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunyun Tian, Hyun Sic Choi
  • Patent number: 10078165
    Abstract: A polarization unit includes a plurality of retardation layers that each have a different retardation value, a polarization layer positioned above the plurality of retardation layers, a first compensation layer positioned between the polarization layer and the plurality of retardation layers, and a second compensation layer positioned below the plurality of retardation layers.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Suk Choi, Tae Young Ahn
  • Patent number: 10067277
    Abstract: A compensation film includes a first retardation layer comprising a polymer having negative birefringence, and a second retardation layer comprising a polymer having negative birefringence, where the first retardation layer has an in-plane retardation (Re1) in a range of about 180 nanometers to about 300 nanometers for incident light having a wavelength of about 550 nanometers, the second retardation layer has an in-plane retardation (Re2) in a range of about 60 nanometers to about 170 nanometers for the incident light having the wavelength of about 550 nanometers, and the entire in-plane retardation (Re0) of the first retardation layer and the second retardation layer for incident light having wavelengths of about 450 nanometers and about 550 nanometers satisfies the following inequation: Re0 (450 nm)<Re0 (550 nm).
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: September 4, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hyung Jun Kim, Ji-Hoon Lee, Hye Young Kong, Jong Hoon Won, Myung Sup Jung
  • Patent number: 10062345
    Abstract: A curved liquid crystal display (LCD) includes a curved liquid crystal panel assembly. The curved liquid crystal panel assembly includes: a lower panel including a first linear polarizer having a first polarization axis; an upper panel including a second linear polarizer having a second polarization axis, the second polarization axis cross the first polarization axis in a plan view; and a liquid crystal layer interposed between the lower panel and the upper panel. An angle formed by a first polarization axis and a second polarization axis does not meet at a right angle in a plan view.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 28, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Kyung Yim, Hyun Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang Myoung Lee
  • Patent number: 10048407
    Abstract: An antiglare film in which occurrence of screen scintillation and white muddiness can be sufficiently prevented at a high level while maintaining hard coating properties and antiglare properties, and excellent display images with a high contrast can be provided. The antiglare film includes a light-transmitting substrate; and an antiglare layer having a surface roughness on at least one surface of the light-transmitting substrate, wherein the antiglare layer contains an aggregate composed of two or more types of fine particles, and the aggregate forms a projection of the surface of the antiglare layer to form a surface roughness on the antiglare layer.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: August 14, 2018
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Junya Eguchi, Tasuku Kitamura, Shoichiro Ogumi
  • Patent number: 10048416
    Abstract: To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 14, 2018
    Assignee: FUJIFILM CORPORATION
    Inventors: Ayako Muramatsu, Shinnosuke Sakai, Teruki Niori, Shinichi Morishima
  • Patent number: 10042176
    Abstract: This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, inorganic half-wave plates provided selectively on the output surface of a polarizing beam-splitter array have obliquely deposited layers comprising a dielectric material and the side surfaces of said obliquely deposited layers are covered by protective films.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 7, 2018
    Assignee: DEXERIALS CORPORATION
    Inventors: Koji Sasaki, Masatoshi Sasaki, Nobuyuki Koike, Akio Takada, Katsuhiro Shindo, Toshiaki Sugawara, Kouichi Miyagi, Masahiro Oowada
  • Patent number: 10042100
    Abstract: Having a layer B formed of a resin “b” having a negative intrinsic birefringence value; and layers A formed of a resin “a” having a positive intrinsic birefringence value and formed on both surfaces of the layer B, wherein the resin “b” includes a styrene-based polymer, the resin “a” includes a polycarbonate, and a difference in average refractive index between the resin “b” and the resin “a” is 0.01 or more.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: August 7, 2018
    Assignee: ZEON CORPORATION
    Inventor: Kyosuke Inoue
  • Patent number: 10036840
    Abstract: There is provided a circularly polarizing plate capable of realizing a bendable display apparatus in which an excellent reflection hue is obtained and a color change due to bending is suppressed. A circularly polarizing plate according to the present invention is used in a bendable display apparatus. The circularly polarizing plate includes: a polarizer; and a retardation film arranged on one side of the polarizer. In-plane retardations of the retardation film satisfy a relationship of Re(450)<Re(550)<Re(650), and a slow axis direction of the retardation film is adjusted so as to form an angle of from 20° to 70° with respect to a bending direction of the display apparatus.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 31, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kentarou Takeda, Hironori Yaginuma, Hiroshi Sumimura, Nao Murakami
  • Patent number: 10025140
    Abstract: Disclosed is a liquid crystal display, including: a first substrate and a second substrate, which face each other; a color filter disposed on the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizing plate disposed outside the first substrate; a first compensation film disposed outside the first polarizing plate; a second compensation film disposed outside the second substrate; and a second polarizing plate disposed outside the second compensation film, in which the second compensation film includes a biaxial film, and the first substrate and the second substrate include a poly-amide (PA) having an optical characteristic of a negative C-plate.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 17, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Hoon Kim, Sang-Gu Lee, Seung Hee Lee, Hyo Sung Hong, Dae Won Kim
  • Patent number: 10018866
    Abstract: An outdoor display apparatus includes a housing having an opening, an inlet port and an outlet port, a transparent member disposed in tile opening, a liquid crystal display panel module disposed in the housing so that the liquid crystal display panel module is spaced from the transparent member to define a gap therebetween, the liquid crystal display panel module being provided at a front thereof with a liquid crystal display panel, a circuit disposed at a rear of the liquid crystal display panel module, an optical film disposed inside the transparent member at a position corresponding to the liquid crystal display panel, and an air circulation device to distribute air introduced through the inlet port so that the distributed air passes through the gap between the transparent member and the liquid crystal display panel and through the circuit and is discharged through the outlet port.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jin Hyun Cho
  • Patent number: 10001673
    Abstract: An optical sheet member includes a polarizing plate including a polarizer, a brightness enhancement film including a reflection polarizer, and a ?/4 plate, in which the reflection polarizer includes a first light reflecting layer which has a reflection center wavelength range of 430 nm to 480 nm, and is formed by fixing a cholesteric liquid crystalline phase emitting circular polarization light, a second light reflecting layer which has a reflection center wavelength range of 500 nm to 600 nm, and a third light reflecting layer which has a reflection center wavelength range of 600 nm to 650 nm, and both formed by fixing a cholesteric liquid crystalline phase emitting circular polarization light, and the brightness enhancement film includes the ?/4 plate satisfying 550 nm/4?25 nm<Re(550)<550 nm/4+25 nm between the polarizer and the reflection polarizer.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 19, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Yukito Saitoh, Katsufumi Ohmuro, Akiko Watano, Hiroshi Sato
  • Patent number: 10001874
    Abstract: A display device including a display section having a plurality of pixel electrodes; and a plurality of drive electrodes extending in a first direction and arranged side-by-side in a second direction. Each of the drive electrodes has a width in the second direction corresponding to a size of the two or more pixel electrodes, and has one or more slits extending in the first direction.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 19, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Noguchi, Yoshitoshi Kida, Kohei Azumi, Takayuki Nakanishi, Hiroshi Mizuhashi
  • Patent number: 9995943
    Abstract: A phase difference plate, a manufacturing method thereof and a display device are provided. The phase difference plate includes: a substrate; and a plurality of strip-shaped regions with an equal width, formed on the substrate and made of liquid crystal photoalignment material, wherein strip-shaped regions in which liquid crystal molecules in the liquid crystal photoalignment material are aligned in a horizontal direction and strip-shaped regions in which liquid crystal molecules in the liquid crystal photoalignment material are aligned in a vertical direction are arranged alternately along an arrangement direction, the horizontal direction is a direction parallel with the substrate and the vertical direction is a direction perpendicular to the substrate.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 12, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenbo Li
  • Patent number: 9997487
    Abstract: A display device includes: a first substrate; a wire portion disposed on the first substrate; a pad portion connected with the wire portion; a printed circuit board facing the first substrate and including an output electrode; and an anisotropic conductive film disposed between the first substrate and the printed circuit board, wherein the anisotropic conductive film comprises a plurality of conductive particles disposed with a constant gap, and the plurality of conductive particles respectively disposed at apexes of virtual regular hexagons in a plan view, with a longest diagonal of the respective virtual regular hexagon being parallel with the y-axis.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: June 12, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyeong Yeol Heo, Joon Sam Kim, Ji Hoon Kim
  • Patent number: 9983440
    Abstract: A display device according to one aspect of the present invention includes a liquid crystal panel including a curved display screen, and a phase compensation member provided at a position corresponding to each of corner portions of the curved display screen.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: May 29, 2018
    Assignee: Japan Display Inc.
    Inventor: Shinichiro Tanaka
  • Patent number: 9986603
    Abstract: An optical film includes: a liquid crystal coating; and a base layer on the liquid crystal coating, wherein the liquid crystal coating has reversed wavelength dispersion and in-plane retardation for a reference wavelength ranging from 126 nm to 153 nm, and the base layer has in-plane retardation ranging from about 0 to about 50 nm and out-of-plane retardation ranging from about 0 nm to about 100 nm.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 29, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CHEIL INDUSTRIES INC.
    Inventors: Hee-Kyung Kim, Moon Yeon Lee, Kyoung Ah Oh, Kyu Yeol In, Ji-Hoon Lee, Myung Sup Jung, Sang ah Gam
  • Patent number: 9975967
    Abstract: Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in optical films, such as optical films having certain Nz values, ?A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 22, 2018
    Assignee: Eastman Chemical Company
    Inventors: Charles Michael Buchanan, Michael Eugene Donelson, Elizabeth Guzman-Morales, Peter Borden Mackenzie, Bin Wang
  • Patent number: RE47306
    Abstract: A flat panel display apparatus is disclosed. In one embodiment, the apparatus includes a panel configured to display an image; a glass window covering the panel; and a polarizing film attached on a surface of the glass window, wherein the polarizing film is configured to prevent the scatter of broken pieces when the glass window breaks and also prevent reflection of an external light.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: March 19, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Woon Jung, Dong-Ho Lee, Seon-Chool Kim, Jong-Kap Jo, Sang-Kyu Kim