For Perpendicular Alignment Patents (Class 349/130)
  • Patent number: 10437097
    Abstract: Disclosed are a spatial light modulator and a display device, where 2*2 adjacent pixel electrodes are a pixel group, through-holes corresponding to the respective pixel electrodes are located proximate to the center of the pixel group, and a photo spacer is located at the center of the pixel group, so that the photo spacer can overlap with the through-holes, or the photo spacer can be arranged in close proximity to the through-holes. If the photo spacer overlaps with the through-holes, then a black matrix layer covering the photo spacer, and a black matrix layer covering the surrounding of the photo spacer may cover at least a part of the through-holes; and if the photo spacer is arranged in close proximity to the through-holes, then the black matrix layer covering the surrounding of the photo spacer may cover at least a part of the through-holes.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: October 8, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jialing Li, Lei Niu, Jian Xu, Yaoyang Liu
  • Patent number: 10409113
    Abstract: A liquid crystal display includes: a first substrate and a pixel electrode thereon, a second substrate facing the first substrate and a common electrode thereon; at least one alignment layer on at least one of the pixel electrode and the common electrode; and a liquid crystal layer between the pixel electrode and the common electrode. A pixel including the pixel electrode includes a plurality of domains including a first domain. The domains have average orientations of the liquid crystal molecules different from each other. The pixel electrode has a first opening in the first domain, and the first opening extends substantially parallel to an edge of the pixel electrode.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: September 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-Jeong Kwon, Jae-Hong Park, Sung-Jae Yun, Hyeok Jin Lee, Jiang Shuai, Kyung Hye Park, Joo Young Yoon
  • Patent number: 10359678
    Abstract: In various embodiments magnetically actuated liquid crystals are provided as well as method of manufacturing such, methods of using the liquid crystals and devices incorporating the liquid crystals. In one non-limiting embodiment the liquid crystals comprise Fe3O4 nanorods where the nanorods are coated with a silica coating.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 23, 2019
    Assignee: The Regents of the University of California
    Inventors: Yadong Yin, Mingsheng Wang
  • Patent number: 10344216
    Abstract: The present invention provides a liquid crystal display device that is less prone to display defects and a decrease in the voltage holding ratio regardless of the presence or absence of an alignment film. The liquid crystal display device includes: a pair of substrates; a liquid crystal layer containing a liquid crystal material between the substrates; and a polymer layer for controlling alignment of liquid crystal molecules on a surface of at least one of the substrates, the substrates being substantially free of an alignment film in outermost surfaces thereof, the polymer layer being formed by polymerization of at least two kinds of radical polymerizable monomers in the liquid crystal layer, at least one of the radical polymerizable monomers being a compound having a structure that creates a ketyl radical as a result of hydrogen abstraction induced by light radiation.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 9, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Masayuki Kanehiro, Masanobu Mizusaki
  • Patent number: 10325543
    Abstract: A liquid crystal display (LCD) system comprising: an LCD panel having a plurality of pixels arranged in an array having a plurality of columns and a plurality of rows; a sensor configured to detect a position of an observer in relation to the LCD panel; pixel control circuitry configured supply electrical signals to drive the plurality of pixels; and gamma correction circuitry associated with the pixel control circuitry, the gamma correction circuitry configured to implement gamma correction upon the electrical signals that drive the plurality of pixels that is based on a detected position of the observer with relation to the LCD panel. Associated methods are also described.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: June 18, 2019
    Assignee: A.U. VISTA INC.
    Inventors: Chia-Wei Hao, Fang-Chen Luo, Wei-Chih Hsu
  • Patent number: 10308874
    Abstract: The liquid crystal material of the disclosure includes liquid crystal molecules, polymerizable monomers and a vertical alignment agent, wherein the polymerizable monomers and the vertical alignment agent can be polymerized under ultraviolet irradiation to form a polymer, while the polymer deposits on a substrate to form a polymer film capable of replacing the PI alignment film; so that an alignment process of the liquid crystal is simplified, and a cost is economized. The method of fabricating the liquid crystal display panel of the disclosure eliminates the fabricating process of the alignment film.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 4, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10301546
    Abstract: The liquid crystal display element uses a liquid crystal composition which has a negative value of dielectric anisotropy (??) and is designed to improve light transmittance adjusting an elastic constant, and a liquid crystal display including the liquid crystal display element. The liquid crystal display element uses a liquid crystal composition having a dielectric anisotropy (??) of less than ?1.5, in which a value of ? of the liquid crystal composition is 0.3 or less, and the value of ? is obtained from Equation (2) using measured values of a splay elastic constant (K11) and a bend elastic constant (K33) of the liquid crystal composition and a twist elastic constant (K22) value obtained from Equation (1) using measured values of a threshold voltage (Vth), a bend elastic constant (K33), vacuum permittivity (?0), a cell gap (d), and a helical pitch (P0).
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: May 28, 2019
    Assignee: DIC CORPORATION
    Inventors: Tsuyoshi Sasaki, Hidenari Akiyama, Yasuo Umezu, Kazunori Maruyama, Haruki Ohishi, Shinji Ogawa, Yoshinori Iwashita
  • Patent number: 10120239
    Abstract: In a provided vertical alignment method, a pixel region, and the pixel region is divided into four sub regions of equal sizes which each is designed to be a square, and a pattern unit on the mask comprises a photic region corresponding to one sub region and a shading region corresponding to the other three sub regions in shape and size. The mask is employed to implement linear UV light irradiation to one sub region according to a certain irradiation angle to obtain a alignment direction of the one sub region, and then, the position of the mask and the certain irradiation angle of the irradiation are maintained to be unchanged. By rotating the pixel region 90° with three times, and the irradiation is implemented to the other three sub regions. Accordingly, the four sub regions have four alignment directions different from one another.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 6, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chao Ma, Xiaolong Ma, Yungjui Lee
  • Patent number: 9939700
    Abstract: The present invention discloses a display panel comprises: a cholesteric liquid crystal cell configured to convert a light passing therethrough into a polarized light; a first light modulator, which is provided at a light output side of the cholesteric liquid crystal cell and directly contacts the cholesteric liquid crystal cell, configured to generate a phase retardation in the polarized light passing therethrough so as to modulate a polarization of the polarized light; a first linear polarizer provided at a side of the first light modulator opposite from the cholesteric liquid crystal cell and configured to selectively permit the polarized light modulated by the first light modulator to pass therethrough. The present invention also discloses a display apparatus.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 10, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingtao Wang, Suzuki Teruaki
  • Patent number: 9844924
    Abstract: A glass laminate, a display element, a display apparatus, a method of manufacturing the glass laminate, and a method of manufacturing the display panel. The glass laminate includes a carrier glass substrate; an intermediate layer stacked on the carrier glass substrate and formed of a material having a columnar grain structure; and a thin glass substrate stacked on the intermediate layer.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hayk Khachatryan, Chang-Mo Park, Dong-Min Lee
  • Patent number: 9829753
    Abstract: A display device includes a first light shielding area where two signal lines are arranged between the opening portions of mutually adjacent sub pixels, a second light shielding area where one signal line is arranged between the opening portions of mutually adjacent sub pixels, and a third light shielding area where one scanning line is arranged between the opening portions of mutually adjacent sub pixels. The display device further includes a first spacer arranged in the first light shielding area or the second light shielding area along the extending direction of the signal line and a second spacer arranged in the third light shielding area along the extending direction of the scanning line. The first spacer and the second spacer are arranged crosswise.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Toshiyuki Higano, Emi Higano
  • Patent number: 9812055
    Abstract: A display device includes: a common electrode and a pixel electrode that includes a horizontal stem, a vertical stem, and a branch. A pixel of the branch includes a first branch that extends in a first diagonal direction from the horizontal stem and the vertical stem, and a second branch that extends in a second diagonal direction from the horizontal stem and the vertical stem.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin
  • Patent number: 9791700
    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: October 17, 2017
    Assignee: MAGIC LEAP, INC.
    Inventor: Brian T. Schowengerdt
  • Patent number: 9791742
    Abstract: A liquid crystal display device includes a liquid crystal display panel which includes an array substrate including a pixel electrode, a gate line extending in a first direction and crossing the pixel electrode, and a data line extending in a second direction substantially perpendicular to the first direction, an opposing substrate including a common electrode in which a slit extending in the first direction and overlapping the gate line is defined, and a liquid crystal layer between the array substrate and the opposing substrate, and a light diffusion film which is disposed on the liquid crystal display panel and includes a plurality of low-refractive line members which respectively extends in the first direction and arranged in the second direction.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: October 17, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Ah Cho, Sang-Jae Kim, Hyoung-Joo Lee
  • Patent number: 9705004
    Abstract: A transistor whose channel is formed in a semiconductor having dielectric anisotropy is provided. A transistor having a small subthreshold swing value is provided. A transistor having normally-off electrical characteristics is provided. A transistor having a low leakage current in an off state is provided. A semiconductor device includes an insulator, a semiconductor, and a conductor. In the semiconductor device, the semiconductor includes a region overlapping with the conductor with the insulator positioned therebetween, and a dielectric constant of the region in a direction perpendicular to a top surface of the region is higher than a dielectric constant of the region in a direction parallel to the top surface.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 11, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kobayashi, Shinpei Matsuda, Daisuke Matsubayashi, Hiroyuki Tomisu
  • Patent number: 9678387
    Abstract: A liquid crystal display including a first substrate; a second substrate facing the first substrate; an alignment layer disposed on at least one of the first substrate and the second substrate; a liquid crystal layer disposed between the first substrate and the second substrate and including a reactive mesogen; and bumps disposed adjacent to a surface of the alignment layer, wherein the alignment layer comprises a main chain and a plurality of side chains connected to the main chain, and the side chains comprise a polymerization inhibiting agent group.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 13, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventor: Ho Lim
  • Patent number: 9678393
    Abstract: A liquid crystal display (LCD) panel, a display apparatus and a method for driving the display apparatus capable of providing a LCD panel having good display quality are provided. The liquid crystal display panel comprises: a first substrate (11) and a second substrate (21) opposite to each other, a pixel array provided on the first substrate (11), and a liquid crystal layer (3) between the first substrate (11) and the second substrate (21). The liquid crystal display panel further comprising a first common electrode (12) disposed on a side of the first substrate (11) close to the liquid crystal layer (3) and a second common electrode (22) disposed on a side of the second substrate (21) close to the liquid crystal layer (3). A first pixel electrode (1) and a second pixel electrode (2) are disposed on the first substrate (11). The second common electrode (22) has no overlap region directly facing the first pixel electrode (1) and/or the second pixel electrode (2).
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 13, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chang Xie, Jianshe Xue, Jaegeon You
  • Patent number: 9664954
    Abstract: A liquid crystal display including a light blocking member disposed on a substrate; and a first column spacer and a second column spacer disposed at a distance from each other on the light blocking member. The first column spacer includes a support portion and a column portion, and the second column spacer includes only a column portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nu Ree Um, Min Jung Kang, Hye Ran Mun, Sang Hun Lee
  • Patent number: 9658500
    Abstract: To decrease graininess in a display surface. First openings comprise third openings each having a first area that extends at a ?45 degree angle, and a second area that extends vertically, and fourth openings each having a first area that extends at a 45 degree angle, and a second area that extends vertically. Second openings comprise fifth openings each having a first area that extends at a 45 degree angle, and a second area that extends vertically, and sixth openings each having a first area that extends at a ?45 degree angle, and a second area that extends vertically. The third and the fifth openings are disposed along horizontally so that one third opening and one fifth opening adjacent to each other overlap. The fourth and the sixth openings are disposed along horizontally so that a part of one fourth opening and one sixth opening adjacent to each other overlap.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 23, 2017
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Yoshihisa Iwamoto
  • Patent number: 9638947
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: an insulation substrate; a thin film transistor disposed on the substrate; a common electrode and a pixel electrode disposed on the thin film transistor to overlap each other with an insulating layer therebetween; a roof layer formed to be spaced apart from the pixel electrode with a microcavity therebetween; and a liquid crystal layer filling the microcavity. A lower portion of the roof layer includes a valley where a thickness of the roof layer is increased and a peak where the thickness of the roof layer is reduced.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: May 2, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Soo Bae, Hae Ju Yun, Yong Seok Kim, Dae Ho Song
  • Patent number: 9632371
    Abstract: The present invention discloses a display panel comprising: a cholesteric liquid crystal cell in which a cholesteric liquid crystal exhibiting a planar texture state distribution is filled; a first light modulator provided at a light output side of the cholesteric liquid crystal cell, configured to generate a phase retardation in a polarized light passing therethrough so as to modulate a polarization of the polarized light, and comprising a liquid crystal layer and a drive electrode for driving liquid crystal molecules in the liquid crystal layer to deflect so as to regulate an amount of the phase retardation of the polarized light passing through the liquid crystal layer; and a first linear polarizer provided at a side of the first light modulator opposite from the cholesteric liquid crystal cell and configured to selectively permit the polarized light modulated by the first light modulator to pass therethrough. The present invention also discloses a display apparatus.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 25, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yingtao Wang, Suzuki Teruaki
  • Patent number: 9612486
    Abstract: A liquid crystal display device is provided that has favorable display characteristics in a display mode using a vertical electric field and a horizontal electric field. This liquid crystal display device includes a first substrate and a second substrate arranged facing each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The liquid crystal layer has liquid crystal molecules having a negative dielectric anisotropy, and the first substrate has a plate-shaped first common electrode and a pixel electrode formed in a separate layer from the first common electrode with an insulating film therebetween. The pixel electrode has a comb-shaped structure, and the second substrate has a second common electrode with a liquid crystal orientation structure that is linear in a plan view.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 4, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Yoshida, Yosuke Iwata, Mitsuhiro Murata, Yasuhiro Nasu, Koichi Miyachi, Tsuyoshi Kamata
  • Patent number: 9580653
    Abstract: The invention relates to the compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I in which R1, L1, L2 and L3 and m have the meanings indicated in claim 1 and to the use of the LC mixtures for an active-matrix display, in particular based on the VA, PSA and PS-VA effect.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 28, 2017
    Assignee: Merck Patent GmbH
    Inventors: Graziano Archetti, Andreas Taugerbeck, Izumi Saito
  • Patent number: 9557605
    Abstract: The present invention provides a method of producing a liquid crystal display device which enables suppression of the occurrence of an electric double layer on a horizontal photo-alignment film before a polymer is formed, and exhibits reduced deterioration of display quality such as image sticking, or reduced display unevenness. The present invention is a method of producing a liquid crystal display device including the steps of (1) forming a liquid crystal layer containing a polymerizable monomer between a first substrate and a second substrate; (2) thermally annealing the liquid crystal layer at a temperature higher by 10° C. or more than the liquid crystalline phase-isotropic phase transition temperature of the liquid crystal layer; (3) forming horizontal alignment films to which the alignment treatment is performed by light irradiation on the first substrate and the second substrate by the time of the step (2); and (4) polymerizing the polymerizable monomer after the step (2).
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: January 31, 2017
    Assignee: Merck Patent GmbH
    Inventors: Isamu Miyake, Koichi Miyachi
  • Patent number: 9507189
    Abstract: The present invention provides a display panel that exhibits increased light use efficiency and decreased occurrence of display anomalies. The display panel includes substrates; a light modulating layer that contains shape-anisotropic members that rotate according to the direction of an electric field and that controls the transmittance of incident light by changing the area projected onto the substrates by the shape-anisotropic members; and supporting members that support the shape-anisotropic members and are rotatably connected thereto.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: November 29, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Eiji Satoh, Takuma Tomotoshi, Tomoko Teranishi, Takahiro Nakahara
  • Patent number: 9470928
    Abstract: Disclosed is a homeotropic alignment liquid crystal film without an alignment layer and a method for preparing the same. More specifically, the present invention relates to a homeotropic alignment liquid crystal film without using a separate alignment layer to induce a homeotropic alignment of the liquid crystal in which a liquid crystal layer has a homeotropic alignment property by coating a polymerizable and reactive liquid crystalline mixture solution including a predetermined surfactant on a plastic substrate whose surface are hydrophilic-treated, and drying and UV irradiating the mixture solution; a method for preparing the same. The homeotropic alignment liquid crystal film prepared according to the present invention may be very useful as a major component of a viewing-angle compensation film and a retardation film, etc. in LCD, and has advantages of simplicity of the manufacturing process, its shortened manufacturing time, its mass production, etc.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: October 18, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Eun-kyung Kim, Dae-hee Lee, Moon-soo Park, Seung-hun Chae, Sin-young Kim
  • Patent number: 9465262
    Abstract: A display panel comprises a first substrate, a second substrate and a pixel array. The pixel array is disposed between the first substrate and the second substrate and comprises a pixel electrode and a data line. The data line is disposed adjacent to the pixel electrode and disposed above a side of the first substrate facing the second substrate. The pixel electrode comprises a first trunk electrode and a plurality of branch electrodes. An extension of the first trunk electrode along a first direction crosses the data line and the first trunk electrode connects to the branch electrodes. The branch electrodes extend along a second direction. An angle y is formed by the first direction and the second direction, x is the value of the ppi of the display panel, and x and y satisfy the following equations: A1=?1.28×10?5(x)3+0.0047722(x)2?0.383068(x)+59.494865, B1=?2.38×10?5(x)3+0.0093751(x)2?1.098394(x)+81.919357, B1<y<A1, 45°<y?70°.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 11, 2016
    Assignee: INNOLUX CORPORATION
    Inventors: Hsin-Yu Lee, Ching-Che Yang, Chen-Kuan Kao
  • Patent number: 9454041
    Abstract: A liquid crystal device includes a liquid crystal layer, and an inorganic oriented film between the liquid crystal layer and an electrode, in which the inorganic oriented film has a first inorganic oriented film that has a first prismatic structure including silicon oxide, and a second inorganic oriented film that is formed so as to cover at least a portion of the first prismatic structure, and includes nitrogen.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 27, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Yoshimichi Matsumoto, Yoshio Taniguchi, Norikazu Komatsu
  • Patent number: 9442324
    Abstract: A source line is provided on a layer above a substrate, and as a whole, extends in a first direction while meandering along the main surface of the substrate. An alignment film is provided on a layer above the source line, and specifies the alignment direction of a liquid crystal. A first protruding section along the source line is formed on the surface of the alignment film. In a cross-section that is parallel to the first direction and perpendicular to the substrate, and that passes through the source line, the inclination of an inclined end face on one side of the first protruding section in the first direction is steeper than the inclination of each inclined end face on the other side of the protruding section.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Akinori Sumi
  • Patent number: 9411196
    Abstract: This liquid crystal display device (100) includes: a vertical alignment liquid crystal layer (3); a pixel electrode (11) and a counter electrode (21) arranged on first and second substrates (1, 2), respectively, to front on the liquid crystal layer; and first and second alignment films (12, 22). Each pixel region (10) includes first, second, third and fourth liquid crystal domains (A, B, C, D) in which liquid crystal molecules (3a) are tilted in first, second, third and fourth predetermined directions, respectively, which are defined so that an angle formed between any two of them is approximately equal to an integral multiple of 90 degrees. The first liquid crystal domain is located close to at least a part of edges of the pixel electrode, which includes a first edge portion (EG1) where an azimuthal direction (e1) perpendicular to the part and pointing toward the inside of the pixel electrode defines an angle greater than 90 degrees to the first direction.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: August 9, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Youhei Nakanishi
  • Patent number: 9405157
    Abstract: A liquid crystal display, including a lower panel electrode including at least one lower panel unit electrode, an upper panel electrode including at least one upper panel unit electrode facing the at least one lower panel unit electrode, and a liquid crystal layer disposed between the lower panel electrode and the upper panel electrode, wherein the lower panel unit electrode includes a stem part forming borders between a plurality of sub-regions; a center pattern including a plurality of straight line sides respectively disposed at the plurality of sub-regions, and a plurality of fine branch parts extending out from the center pattern, the stem part includes a horizontal stem part and a vertical stem part, and angles that the horizontal stem part and the vertical stem part form with the respective straight line sides of the center pattern are different from each other.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho Kil Oh, Cheol Shin, Ka Eun Kim, Hyo Ju Jung, Ki Chul Shin
  • Patent number: 9397477
    Abstract: An external-cavity tunable laser with a flexible wavelength grid tuning function comprises a resonant cavity, collimating lenses, an optical isolator, and an output optical fiber. The resonant cavity comprises a semiconductor gain chip, a beam expander collimating lens, a combined liquid crystal tunable filter assembly, and a reflecting mirror. A current injected to the semiconductor gain chip is converted to broadband spontaneously radiating photons through electrical-to-optical conversion, and the photons are spread along a waveguide toward two sides. A part of photons with special frequencies go back and forth multiple times in the resonant cavity to form a laser after a threshold condition is met. The laser is collimated by the collimating lens, passes through the optical isolator, is coupled by the collimating lens, and enters the output optical fiber.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: July 19, 2016
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Yanfeng Fu, Di Zhang, Qianggao Hu, Xuesheng Tang, Shenglei Hu, Yi Tang, Kun Qian
  • Patent number: 9366917
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a pixel electrode disposed on the first substrate, a storage electrode line which is close to edges of the pixel electrode and spaced apart from the pixel electrode, a common electrode disposed on the second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, where the common electrode includes a first cutout having a cross shape, and the pixel electrode includes a second cutout which is close to at least one of the edges of the pixel electrode and disposed along the edge.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh Jeong Kwon, Hyeok Jin Lee, Jae Hong Park, Heung Shik Park, Ki Chul Shin
  • Patent number: 9316868
    Abstract: A liquid crystal display panel and a method for fabricating the same are disclosed. The liquid crystal panel comprises a first substrate (1), a second substrate (2) and a liquid crystal layer (3) sandwiched between the first substrate (1) and the second substrate (1), wherein protrusions (4) are respectively disposed on a side of the first substrate (1) adjacent to the liquid crystal layer (3) and a side of the second substrate (2) adjacent to the liquid crystal layer (3).
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: April 19, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventor: Tao Sun
  • Patent number: 9229274
    Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sun Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 9110341
    Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a sub-pixel electrode extending in the first direction, and a pixel electrode having “n” main pixel electrodes electrically connected with the sub-pixel electrode and extending in the second direction (“n” is positive integer). A second substrate includes a main common electrode extending in the second direction in parallel with the “n” main pixel electrodes, and a liquid crystal layer held between the first and second substrates and including liquid crystal molecules. The dielectric constant anisotropy ?? of the liquid crystal molecules satisfies a following relational expression with respect to a definition depending on an inter-electrode distance between the main pixel electrode and the main common electrode in the first direction. ????0.014×(definition)+(19.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 18, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Yusuke Morita, Jin Hirosawa, Hitomi Hasegawa
  • Patent number: 9063377
    Abstract: The present invention provides a liquid crystal display device which is excellent in uniformity of visual angles even when divided alignment regions are distorted due to an external pressure such as pressing pressure. The present invention provides a liquid crystal display device comprising: a pair of substrates; and a liquid crystal layer between the substrates, wherein, as viewed in a plan view of a main surface of one of the substrates, the liquid crystal display device has an alignment division pattern in which each pixel is divided into four or more alignment regions, and each set of a plurality of pixels constitutes one unit, and each of the units of the alignment division pattern comprises, in at least one pixel, an alignment region whose alignment direction is different from alignment directions of alignment regions which are located at same vertical and horizontal positions in the other pixels.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: June 23, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinji Shimada
  • Publication number: 20150146131
    Abstract: A light modulation layer of a display panel in the present invention includes shape-anisotropic members and liquid crystal molecules. The projected area of the shape-anisotropic members on a first substrate and a second substrate is changed by altering the voltage applied to the light modulation layer, which changes the orientation of the liquid crystal molecules. According to the present invention, it is possible to increase light use efficiency with a simple configuration and to control light/dark switching in both directions at a high switching speed. The present invention is applicable to a television.
    Type: Application
    Filed: March 11, 2013
    Publication date: May 28, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Eiji Satoh, Kohzoh Nakamura, Hisashi Watanabe, Takahiro Nakahara
  • Patent number: 9030635
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a stage including an electrode formation surface, a switching element, a second electrode and a first vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The electrode formation surface is positioned closer to the second substrate than a portion of the first vertical alignment film, which opposes the first electrode.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: May 12, 2015
    Assignee: Japan Display Inc.
    Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kenji Nakao, Kazuhiro Nishiyama
  • Patent number: 9019447
    Abstract: A liquid crystal display device comprising: a liquid crystal cell including a quadrilateral display surface and a liquid crystal layer enclosed between glass substrates and controlling light entering from a second surface side and exiting to a first surface side; a first polarizing plate including a polarizer having an absorption axis and adhered to the first surface side with an adhesive layer; and a second polarizing plate including a polarizer having an absorption axis and adhered to the second surface side with an adhesive layer such that one of the polarizing plates including the polarizer with a larger maximum dimension in an absorption axis direction on the display surface is adhered to the glass substrate with an adhesive layer having higher adhesion strength to the glass substrate than the adhesive layer of other polarizing plates including the polarizer with a smaller maximum dimension in the absorption axis direction.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Japan Display Inc.
    Inventors: Kayoko Miyazaki, Keiji Tago, Hirokazu Morimoto
  • Patent number: 9019457
    Abstract: A liquid crystal display element comprises a first and a second substrates, a vertical alignment liquid crystal layer, and a first and a second polarizers arranged to cross approximately their absorption axes and an alignment direction of liquid crystal molecules when no voltage is applied at almost 45 degrees. At least one of the electrodes comprises a polyline extending to an extending direction as a whole and having no straight line in parallel to the extending direction along an electrode edge, and the polyline is formed along an edge of at least one of the first and the second electrodes where the alignment directions when a voltage is applied and when no voltage is applied are opposite to each other if the polyline is a straight line along the extending direction.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hiroto Fukushima, Yoshihisa Iwamoto
  • Patent number: 9013661
    Abstract: The present invention provides a liquid crystal display (LCD) panel and a display apparatus using the same. The LCD panel comprises a first substrate, a second substrate, a liquid crystal layer and quarter wave (?/4) pattern retarder films. The liquid crystal layer is formed between the first substrate and the second substrate. The second substrate comprises a second electrode, wherein the second electrode comprises main pixel regions and sub-pixel regions. The ?/4 pattern retarder films are disposed between the first substrate and a first polarizer, and between the second substrate and a second polarizer, respectively. The present invention can improve the color shift problem and the transmittance of the LCD panel.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 21, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chihtsung Kang
  • Patent number: 8999462
    Abstract: The present invention provides a photosensitive monomer of which hydrogen atoms of benzene ring of a hard core are substituted by fluorine atoms to increase the electronegativity of the hard core, so that the curing voltage of the curing process is reduced. The photosensitive monomer of the present invention not only reduces the curing voltage and curing time of the curing process of liquid crystal panels, but also increases the pretilt angle of liquid crystal molecules to reduce the response time of a liquid crystal display, so that image sticking and MURA phenomenon are reduced.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 7, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Sikun Hao, Chung-Ching Hsieh, Chung Yi Chiu
  • Patent number: 9001296
    Abstract: A liquid crystal display apparatus includes an electrode and a slit formation region provided in the electrode and extending in a direction of extension of a boundary line, a first alignment region and a third alignment region are formed such that liquid crystal molecules are aligned toward a first director orientation, a second alignment region and a fourth alignment region are formed such that liquid crystal molecules are aligned toward a second director orientation greater in an angle of orientation than the first director orientation, an angle of orientation of a first slit orientation is not greater than an angle of orientation of the first director orientation, and an angle of orientation of a second slit orientation is not smaller than an angle of orientation of the second director orientation.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ken Kuboki, Akira Shibazaki, Satomi Hasegawa, Hiroshi Tsuchiya, Yusuke Nishihara, Taichi Sasaki, Seiji Tanuma
  • Publication number: 20150092148
    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: Application
    Filed: October 1, 2014
    Publication date: April 2, 2015
    Applicant: Japan Display Inc.
    Inventor: Keisuke TAKANO
  • Publication number: 20150085238
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate, a pixel electrode disposed on the first substrate, a first alignment layer disposed on the first substrate and the pixel electrode, a second substrate facing the first substrate, a common electrode disposed on the second substrate, a second alignment layer disposed on the second substrate and the common electrode, and a liquid crystal layer disposed between the first substrate and the second substrate, in which the common electrode has a first opening having a cross shape, an edge of the first opening protrudes beyond an edge of the pixel electrode, and the pixel electrode includes a second opening disposed adjacently to at least one of the edges of the pixel electrode.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Inventors: Oh Jeong Kwon, Jae Hong Park, Sung-Jae Yun, Hyeok Jin Lee, Mee Hye Jung, Jiang Shuai, Kyung Hye Park, Jae-Hoon Kim
  • Patent number: 8982309
    Abstract: A liquid crystal display device includes a substrate, a thin film transistor disposed on the substrate, a plurality of color filters disposed on the substrate, a light blocking member disposed between the plurality of color filters and on the thin film transistor, and a pixel electrode disposed on at least one of the plurality of color filters. The pixel electrode comprises a planar shape electrode and a plurality of minute branches extending from the planar shape electrode. The at least one of the plurality of color filters or the light blocking member comprises a step forming portion overlapped by the planar shape electrode.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Soo Jang, Hak-Sun Chang, Jang Wi Ryu, Ki Chul Shin
  • Patent number: 8982305
    Abstract: The present invention provides a liquid crystal display (LCD) panel and a display apparatus using the same. In the LCD panel, a second electrode of the second substrate comprises a trunk portion and a plurality of branch portion, and each of the pixels comprises a main pixel region and a sub-pixel region, and an included angle between the trunk portion and the branch portions is of 45 degrees in the main pixel region, and in each of the sub-pixel regions, a predetermined angle between the trunk portion and the branch portions is not equal to 45 degrees. The ?/2 pattern retarder film of the LCD panel comprises ?/2 retarder rows and zero wave retarder rows.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: March 17, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chihtsung Kang
  • Patent number: 8970813
    Abstract: The present invention provides an optical compensation film group and a method for reducing light leakage of a vertical alignment LCD using the same. For the vertical alignment LCD at a wavelength of 550 nm, an LC?nd in the range of [305.8 nm, 324.3 nm], and a pretilt angle in the range of [85°, 90°), a compensation value Ro of an in-plane optical path difference of the biaxial compensation film is in the range of 48 nm?Ro?84 nm, and a compensation value Rth of an out-of-plane optical path difference of the biaxial compensation film is in the range of 160 nm?Rth?280 nm, and a TAC compensation film having a compensation value Rth is in the range of Y1?Rth?Y2. The present invention can effectively improve the serious light leakage caused by the conventional compensation structure with a single biaxial compensation film, the contrast and sharpness at the large viewing angles, and the costs.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 3, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chih-Tsung Kang, Bo Hai
  • Patent number: 8964158
    Abstract: A liquid crystal (LC) display device includes a first substrate having a pixel unit and a second substrate. The pixel unit has a pixel electrode unit including a primary electrode region. A LC layer with chiral dopants is disposed between the first and second substrates. The pixel unit has a first boundary along a horizontal direction of an upper portion of the pixel unit. The first boundary has a first central point. The primary electrode region has a first side along the horizontal direction of an upper portion of the primary electrode region. The first side has a second central point left to the first central point. The primary electrode region has a second side located on the left to the second central point, and a first angle between the first and second sides is larger than 90 degrees or equal to 90 degrees.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Innolux Corporation
    Inventors: Ming-Hung Chen, Ying-Jen Chen, Chih-Yung Hsieh