With Plural Alignments On The Same Substrate Patents (Class 349/129)
  • Patent number: 9007552
    Abstract: A normally black liquid crystal display device includes a liquid crystal layer in which liquid crystal molecules are arranged vertically when no voltage is applied, and arranged horizontally by applying a voltage. In each of pixel regions in alignment films which are segmented in a grid by source lines and gate lines, is divided into two along a direction parallel to the source lines. The first alignment film includes a first region and a second region. The second alignment film includes a third region facing the first region and a fourth region facing the second region. In an adjacent pair of the pixel regions, pairs of the regions are adjacent to each other with corresponding one of the source lines interposed therebetween.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 14, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takayuki Hayano, Masayuki Tsuji, Kohji Hayashi
  • Patent number: 9007551
    Abstract: A high resolution, wide viewing angle, low power consumption liquid crystal display device which utilizes nematic liquid crystal and which can attain both the memory effect and wide-viewing-angle display characteristic. A liquid crystal display device that utilizes nematic liquid crystal and includes a pair of transparent substrates; a group of electrodes for applying to a liquid crystal layer disposed between the pair of substrates an electric field having a component substantially parallel to the surfaces of the substrates; and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates and having been subjected to liquid crystal anchoring treatments in plural directions. The plurality of liquid crystal anchoring directions of the alignment layer form substantially equal angles relative to one another, and a rising angle in each of the liquid crystal anchoring directions with respect to the corresponding substrate surface is substantially zero.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 14, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Makoto Yoneya, Jong-Hyun Kim, Hiroshi Yokoyama, Jun Yamamoto
  • Patent number: 9007553
    Abstract: A liquid crystal device including a first substrate including a plurality of picture elements; a second substrate including a common electrode; and a liquid crystal layer sandwiched therebetween. The first substrate and the second substrate are arranged to be opposite to each other, and each of the plurality of picture elements has a plurality of elongated electrodes configured to apply voltages to the liquid crystal layer in cooperation with the common electrode. The elongated electrodes within one of the plurality of picture elements extend in eight directions, and each of the plurality of picture elements is divided into eight regions based upon the eight directions. In each of the eight regions of one of the plurality of picture elements, two or more of the plurality of elongated electrodes extend along a corresponding one of the eight directions.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: April 14, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Kunihiro Tashiro, Katsufumi Ohmuro, Kazutaka Hanaoka, Jin Hirosawa, Norio Sugiura, Kengo Kanii, Shota Makimoto, Naoto Kondo, Isao Tsushima, Tomonori Tanose, Takashi Takagi, Tetsuya Fujikawa
  • Patent number: 9001295
    Abstract: A liquid crystal display device includes: a liquid crystal layer extending at least in a display region; first and second substrates affixed to each other so as to sandwich the liquid crystal layer therebetween; and a pair of polarization plates disposed to sandwich these substrates therebetween. The first substrate is provided with a pixel electrode corresponding to each of a plurality of pixels. The second substrate is provided with a counter electrode so as to face the pixel electrode. A first alignment film is disposed on the pixel electrode. A second alignment film is disposed on the counter electrode. The pixels each include a plurality of domains having different combinations of alignment directions of the first and second alignment films. The pixel electrode has a slit group along at least a part of an outline of the pixel electrode and in the vicinity of the outline.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: April 7, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Shibazaki, Ken Kuboki, Satomi Hasegawa, Hiroshi Tsuchiya, Yusuke Nishihara, Taichi Sasaki, Seiji Tanuma
  • 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
  • Patent number: 8994903
    Abstract: A liquid crystal display includes a display panel having a plurality of pixels. The display panel includes a first substrate and a second substrate opposing each other. A liquid crystal layer is positioned between the first substrate and the second substrate. A pixel electrode is positioned on the first substrate and positioned in one pixel of the plurality of pixels. An opposing electrode faces the pixel electrode with the liquid crystal layer interposed therebetween. At least one of the pixel electrode and the opposing electrode includes a liquid crystal inclination direction determining member. A transmission region of the pixel includes a first region and a second region that have different cell gaps of the liquid crystal layer from each other and extension directions of the liquid crystal inclination direction determining member in the first region and the second region are different from each other.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Suk Yang, Ho-Jun Lee, Sang Ho Kim, Sang Yeoul Lim, Young-Min Jung, Ho Kyung Kim, Sung Hoon Kim
  • Patent number: 8988621
    Abstract: An array substrate includes a gate line, a data line, a thin film transistor (TFT), a pixel electrode and a storage line. The pixel electrode includes a main pixel electrode and a sub pixel electrode partly surrounding at least a portion of the main pixel electrode. The storage line includes a main storage line that extends substantially parallel to the gate line and across the pixel electrode, a sub storage line that extends from the main storage line and substantially parallel to the data line to overlap the sub pixel electrode, and a protruding storage line that extends from the sub storage line and substantially parallel to the gate line to overlap the main pixel electrode.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yeo Geon Yoon, Won-Hee Lee, Kye-Hun Lee, In-Woo Kim
  • 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: 8970524
    Abstract: A touch sensor integrated type display and a method of forming the same are discussed. According to an embodiment, the touch sensor integrated type display device includes a plurality of gate lines and a plurality of data lines formed on a substrate to cross each other; a display area including a plurality of pixel electrodes for displaying images; a common electrode including at least two touch driving electrodes overlapping the plurality of pixel electrodes and at least one touch sensing electrode positioned adjacent to the at least two touch driving electrodes, for recognizing a touch input to the display area; at least one first signal line electrically connected to the at least two touch driving electrodes; and at least one second signal line electrically connected to the at least one touch sensing electrode, and formed over at least one of the data lines.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Cheolse Kim, Sunjung Lee, Sangsoo Hwang
  • Patent number: 8970814
    Abstract: The present invention provides a liquid crystal display device and a manufacturing method thereof. The liquid crystal display device includes a TFT substrate, a CF substrate opposite to and parallel with the TFT substrate, liquid crystal interposed between the TFT substrate and the CF substrate, spacers arranged between the TFT substrate and the CF substrate, and an enclosing resin frame arranged between the TFT substrate and the CF substrate and located along edges of the TFT substrate and the CF substrate. The TFT substrate and the CF substrate have inside surfaces that oppose the liquid crystal and are both provided with alignment layers. The alignment layers include flexible alignment films, which are in the form of thin membranes and are positioned on the inside surfaces of the TFT substrate and the CF substrate by being stuck thereto.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: March 3, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xinhui Zhong
  • Publication number: 20150055065
    Abstract: A liquid crystal display includes a first substrate, a second substrate disposed opposite to the first substrate; a pixel electrode disposed on the first substrate; a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate, where a first cutout having a cross shape is defined in the common electrode, a second cutout is defined in the pixel electrode to be adjacent to and along an edge of the pixel electrode, and the pixel electrode has a step structure, a boundary line of which is in a rhombus shape.
    Type: Application
    Filed: January 17, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dong-Chul SHIN, Jae Hong PARK, Oh Jeong KWON, Ki Chul SHIN, Sung-Jae YUN, Hyeok Jin LEE
  • 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
  • Patent number: 8963174
    Abstract: A TFT-LCD array substrate and a display device. The TFT-LCD array substrate comprises a pixel area the pixel area comprising a plurality of pixel units arranged in an array, and each of the pixel units comprising a first electrode and a second electrode generating a horizontal electric field with the first electrode. The second electrode comprises strip electrodes, and the strip electrodes constitute a radial pattern of a regular triangle, a regular polygon or a circle in each of the pixel units.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: February 24, 2015
    Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Cheng Li, Xue Dong, Dong Chen, Renwei Guo, Suzhen Mu
  • Patent number: 8958036
    Abstract: The present invention discloses a liquid crystal panel, liquid crystal display device and manufacturing method of array substrate thereof. The liquid crystal panel comprises: a color filter substrate and an array substrate, disposed with spacing, surface of array substrate facing color filter substrate being disposed with a plurality of pixel units, each of pixel units comprising a thin film transistor, a pixel electrode and a VIA connecting thin film transistor and pixel electrode; at least an auxiliary hole formed by same EPD etching as VIA being disposed between pixel units or in each pixel unit. The present invention can amplify the detection voltage, which enables monitoring VIA forming process more precisely and reliably to ensure the VIA manufacture quality.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yangling Cheng
  • Patent number: 8958037
    Abstract: An vertical alignment type liquid crystal display element (10) which controls an orientation of liquid crystal molecules (52) in a liquid crystal layer (50) by use of a transverse electric field so as to carry out display. A CF-side first insulating layer (42a) and a CF-side second insulting layer (42b) which have respective different dielectric constants are provided, within a pixel in a planar view, on or above a CF substrate (24) so that a first electric field region (60) and a second electric field region (62) which differ in shapes of equipotential lines are formed in the pixel due to generation of a transverse electric field.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: February 17, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuhiro Murata, Shoichi Ishihara, Takehisa Sakurai, Shuichi Kozaki, Tadashi Ohtake
  • Patent number: 8958035
    Abstract: A wide variety of different alignment polar angles can be created in the alignment layers of a liquid crystal display with just a small number of UV exposure steps by using one or a combination of overlappable UV masks, where the one or more combinations of overlappable UV masks simultaneously define a maximal transmission region, an intermediate transmission region and a nontransmitting (blocking) region. UV rays are irradiated through masks in different irradiation directions while the mask or masks are disposed in different orientations.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: February 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Woo Lee, Jin-Soo Jung, Suk-Hoon Kang, Tae-Ho Kim, Soo-Ryun Cho, Baek-Kyun Jeon
  • Patent number: 8953128
    Abstract: A liquid crystal display may include a first substrate, a second substrate facing the first substrate, a liquid crystal layer comprising liquid crystal molecules that are interposed between the first substrate and the second substrate, a first electrode disposed on the first substrate, an insulating layer disposed on the first electrode, a second electrode disposed on the insulating layer, a third electrode disposed on the second substrate, and an alignment layer disposed on any one of the second electrode and the third electrode. The second electrode comprises a fine slit structure, and at least one of the liquid crystal layer and the alignment layer comprises a sub-alignment substance.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gak-Seok Lee, Ki Chul Shin, Youn Hak Jeong, Hee Hwan Lee, Joo Seok Yeom
  • Patent number: 8953134
    Abstract: A liquid crystal display panel is provided and includes a pair of substrates facing each other with a liquid crystal layer therebetween. One of the substrates having, thereon, an upper electrode having a plurality of slits formed therein, a lower electrode facing the upper electrode with an insulating film therebetween and disposed so as to be adjacent to the substrate, and an alignment film formed so as to cover surfaces of the upper electrode and the insulating film. Each of the slits includes a linear portion disposed so as to be parallel to a liquid crystal alignment direction when no voltage is applied and two extension portions extending from both ends of the linear portion so that a distance between the two extension portions increases in a direction perpendicular to the linear portion while keeping a symmetrical shape with respect to the direction.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Shinichiro Nomura, Kimitaka Kamijo, Tae Nakahara
  • Patent number: 8953127
    Abstract: A lens panel includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first base substrate, a first electrode disposed on the first base substrate, and a first alignment layer disposed on the first electrode. The first alignment layer includes a unit lens area. The unit lens area includes a first alignment area having a first azimuthal angle and a second alignment area having a second azimuthal angle. The lens panel may be controlled to function as a Fresnel lens by adjusting the azimuthal angle of the alignment layer without electrodes having micro pitch patterns.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Hoi-Lim Kim
  • Publication number: 20150036073
    Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.
    Type: Application
    Filed: May 28, 2014
    Publication date: February 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Wan-Soon IM, MinWook PARK, SuWan WOO, Eun-Kil PARK, Jeongman Son, Changil TAE, Kee-Bum PARK, Kyung-Bae KIM, JE HYEONG PARK, JOOHWAN PARK, YU DEOK SEO, Seungho YANG, SEJOON OH, HEEHWAN LEE
  • Patent number: 8947623
    Abstract: A manufacturing method of a liquid crystal display includes: forming an etch target layer including a conductive material on a first substrate; forming a first mask layer on the etch target layer; forming a block copolymer coating layer including a plurality of polymers on the first mask layer; processing the block copolymer coating layer to form a block copolymer pattern layer including first and second polymer blocks; removing one of the first or second polymer blocks to form a second mask pattern layer; etching the first mask layer by using the second mask pattern layer as an etching mask to form a first mask pattern layer; and etching the etch target layer by using the first mask pattern layer as an etching mask to form a first electrode. The first electrode includes a plurality of the first minute patterns extending in a predetermined direction and having a polarization function.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyang-Shik Kong, Sung Hoon Yang, Se Hwan Yu, Yong Hwan Shin, Su Mi Lee, Shin Il Choi
  • Publication number: 20150029455
    Abstract: A liquid crystal display includes a thin film transistor panel including a first alignment layer, an opposing panel including a second alignment layer, and opposite to the thin film transistor panel, and a liquid crystal layer between the thin film transistor panel and the opposing panel, and including liquid crystal molecules, wherein a difference between a pretilt angle provided by the first alignment layer and a pretilt angle provided by the second alignment layer is equal to or greater than about 0.8 degree.
    Type: Application
    Filed: June 13, 2014
    Publication date: January 29, 2015
    Inventors: Su Jeong KIM, Oh Jeong KWON, Ki Chul SHIN
  • Patent number: 8941789
    Abstract: A liquid crystal display apparatus includes a plurality of pixels having first and second subpixels, a plurality of gate lines connected to the first and second subpixels to transmit gate signals, a plurality of first data lines intersecting the gate lines and connected to the first subpixels to transmit first data voltages, and a plurality of second data lines intersecting the gate lines and connected to the second subpixels to transmit second data voltages. The first and second data voltages have different sizes and are obtained from single image information. Each pixel is divided into a pair of subpixels, and different data voltages are applied to the subpixels through two different data lines, so that it is possible to secure a wide viewing angle and improve side visibility.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: January 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Hoon Yoo, Hee-Suk Lee, Woo-Sung Sohn
  • Patent number: 8937700
    Abstract: The liquid crystal display device includes a transparent electrode formed in a plan form and a strip or strips transparent electrode disposed thereon via an insulating film, and controls display by rotating the liquid crystal aligned substantially in parallel to a substrate within a plane that is substantially in parallel to the substrate by an electric field between the both electrodes. Each pixel constituting the display is divided into two regions, the extending directions of the strip electrode in each of the regions are orthogonal, the alignment azimuths of the liquid crystal of each of the regions are orthogonal, and the angles formed between the extending directions of the strip electrode and the alignment azimuth of the liquid crystal are the same.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 20, 2015
    Assignee: NLT Technologies, Ltd.
    Inventors: Shinichi Nishida, Ken Sumiyoshi, Hideki Ito, Mitsuhiro Sugimoto, Hidenori Ikeno
  • Patent number: 8937699
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate and an opposing second substrate; a first pixel electrode and a second pixel electrode disposed in a pixel area, on the first substrate, and including a plurality of branch electrodes; and a liquid crystal layer interposed between the first and second electrodes. Branches electrode of the first pixel electrode and the second pixel electrode are interlaced. The first pixel electrode has an extension disposed adjacent to the center of the pixel area, and a minimum distance between the extension and the adjacent branch electrode is different from an average minimum between the adjacent branch electrodes.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: January 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Doo-Hwan You, Young-Hoon Yoo, Woo-Sung Sohn, Sung-Hoon Kim, Jae-Yong Shin, Se-Hyoung Cho, Hye-Seok Na, Hong-Jo Park, Hyang-Yul Kim
  • Patent number: 8933898
    Abstract: A touch sensor integrated type display device includes gate lines and data lines, which are formed on a substrate to cross each other, a plurality of pixel electrodes formed in areas defined by the crossing of the gate lines and the data lines, a common electrode including at least two touch driving electrodes, which overlap the pixel electrodes with an insulating layer interposed between them, and at least one touch sensing electrode, which is disposed adjacent to the at least two touch driving electrodes, first signal lines which are connected to the at least two touch driving electrodes and are arranged parallel to one another in a first direction, and a second signal line which is connected to the at least one touch sensing electrode and is arranged parallel to the first signal lines in the first direction.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: January 13, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Buyeol Lee, Hyein Han
  • Patent number: 8928846
    Abstract: An object is to provide a liquid crystal display device a driving voltage of which is reduced, which is formed using a liquid crystal material exhibiting a blue phase, and which enables higher contrast. In a liquid crystal display device including a liquid crystal layer exhibiting a blue phase, a first wall-like structure body is formed over a first electrode layer (pixel electrode layer), a second wall-like structure body is provided over a second electrode layer (common electrode layer), and a dielectric film covers them. The dielectric film is an insulator having a higher dielectric constant than the first wall-like structure body, the second wall-like structure body, and a liquid crystal material used for the liquid crystal layer, and is provided so as to protrude in the liquid crystal layer.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: January 6, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Daisuke Kubota, Akio Yamashita, Tetsuji Ishitani
  • Patent number: 8928844
    Abstract: The present invention discloses a pixel unit and has: a gate line; a source line; a drain line; an active element electrically connected to the gate line, the source line and the drain line; a pixel electrode including a main trunk and multiple stripped electrodes, and the main trunk is electrically connected to the drain line, the main trunk has a first predetermined angle with respect to a first polarization axis or a second polarization axis, and the main trunk at least has two segments, an end of each of the strip electrodes is connected to the main trunk and each of the strip electrodes has a second predetermined angle with respect to the main trunk. The present invention further discloses a liquid crystal display panel.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: January 6, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chihtsung Kang
  • Patent number: 8922752
    Abstract: A method for alignment processing including making a substrate 4, coated with an aligned film, closely face the photo mask 7 having a first mask pattern group having a plurality of elongated first openings formed at a fixed array pitch and a second mask pattern group provided in parallel with the first mask pattern group and having a plurality of elongated second openings formed at the same pitch as the array pitch of the first openings and moving the substrate in a direction crossing the first and second mask pattern groups, applying P polarizations with different incidence angles ? to the first and second mask pattern groups of the photo mask, and alternately forming, on the aligned film, first and second slit alignment regions in different aligned states.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 30, 2014
    Assignee: V Technology Co., Ltd.
    Inventors: Koichi Kajiyama, Toshinari Arai, Michinobu Mizumura
  • Patent number: 8908136
    Abstract: The invention provides a liquid crystal display panel with a multi-domain pixel layout, including: a plurality of pixel units arranged in a matrix formed by columns and rows, wherein each pixel unit is divided into a plurality of domains; a first alignment layer aligned to directions along the columns; and a second alignment layer aligned to directions along the rows. For two adjacent pixel units arranged in the column direction, the domains adjacent to a boundary between the two adjacent pixel units are defined with the same directions which liquid crystal molecules tilt toward by the first and second alignment layers.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: December 9, 2014
    Assignee: InnoLux Corporation
    Inventors: Jian-Cheng Chen, Bo-Chin Tsuei, Bo-Han Lyu, Hong-Sheng Hsieh, Tzung-Han Tsai
  • Patent number: 8908140
    Abstract: The present invention provides a liquid crystal display panel that has an enhanced liquid crystal alignment controlling force irrespective of the external conditions or environments. The enhanced liquid crystal alignment controlling force sufficiently prevents surface roughness or color unevenness that can occur depending on the viewing angle, so that favorable display qualities and excellent transmittance can be achieved. The liquid crystal display panel includes a pair of substrates comprising a pixel electrode and a counter electrode; and a liquid crystal layer disposed between the substrates, the liquid crystal display panel comprising spacers at at least four corners of a pixel defined by the pixel electrode.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 9, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshimizu Moriya, Yasuyoshi Kaise, Yasutoshi Tasaka, Yuki Kawashima
  • Patent number: 8902386
    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: Grant
    Filed: May 2, 2012
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    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: 8881671
    Abstract: A rubbing system for an alignment layer of a liquid crystal display (LCD) device, comprises: a rubbing table on which a substrate having an alignment layer thereon is positioned; a rubbing roll on which a rubbing material is wound, substantially positioned on the rubbing table thus to substantially contact the alignment layer, for rubbing the alignment layer by rotation of the rubbing roll; and a controlling unit for controlling the alignment layer to be rubbed by substantially contacting the rubbing roll onto the alignment layer by simultaneously lifting and lowering a rubbing table and the rubbing roll according to an alignment controlling force to be applied to the alignment layer.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Won Moon, Byoung-Chul Choi
  • Patent number: 8885130
    Abstract: Embodiments may include a fringe field switching mode liquid crystal display (LCD) apparatus. The fringe field switching mode LCD apparatus includes a first substrate on which a first electrode and a second electrode are installed, the second electrode facing the first electrode and having a plurality of slits therein; a second substrate, which faces the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, the first electrode having a protrusion at a slit end portion of the slits, the protrusion protruding toward the second electrode.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Mu-Kyung Jeon
  • Patent number: 8885132
    Abstract: In one embodiment, a liquid crystal display device comprises a pixel electrode including a first main electrode disposed between a first line and a second line and extending like a belt in a first extending direction. A first counter electrode includes a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction. The second and third main electrodes are disposed on both sides of the first main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: November 11, 2014
    Assignee: Japan Display Inc.
    Inventors: Yusuke Morita, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Keiji Tago, Kazuya Daishi
  • Patent number: 8877303
    Abstract: To form an optical alignment film having large anchoring strength and suppress an AC afterimage of a liquid crystal display device, in a liquid crystal display device of an IPS mode. In an alignment film material subjected to optical alignment processing, polyimide which becomes a rigid high molecule and polyimide which becomes a flexible high molecule are mixed and used. The material of the present invention can easily rotate oligomer after irradiating polarized ultraviolet rays and improve a UV-absorbed two-color ratio of an alignment film. Accordingly, an anchoring strength for liquid crystals by the alignment film is large to suppress an AC afterimage.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Japan Display Inc.
    Inventors: Shoichi Uchino, Noboru Kunimatsu
  • Patent number: 8879033
    Abstract: A liquid crystal display, including a first substrate and a second substrate, each having a plurality of unit pixel areas and facing each other, and a liquid crystal layer between the first substrate and the second substrate, in which the plurality of unit pixel areas each have a plurality of domains. In a first domain of the plurality of domains, a first alignment layer of the first substrate and a second alignment layer of the second substrate are photo-aligned, and in a second domain of the plurality of domains, the second alignment layer of the second substrate is photo-aligned twice and the first alignment layer of the first substrate is not photo-aligned.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Hwan Shin, Hak Sun Chang, Min-Sik Jung, Baek Kyun Jeon, Jun Woo Lee
  • Patent number: 8879032
    Abstract: An alignment layer for a display device may include a plurality of rubbed patterns formed on its surface, wherein each of the rubbed patterns includes a first pattern intersecting a center axis at a first angle, and a second pattern connected to the first pattern and intersecting the center axis at a second angle, and the first pattern and the second pattern are alternately repeated. A liquid crystal display device includes the alignment layer, and a method and apparatus for treating the alignment layer are provided.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Len Kaplan, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Seon-Hong Ahn
  • Patent number: 8873005
    Abstract: A method for manufacturing an alignment layer is provided. An alignment material having an ultraviolet reactive functional group is formed on a substrate. A pre-baking process is performed on the alignment material located on the substrate. An ultraviolet polarizer is provided on the substrate. An aligning process is performed on the pre-baked alignment material, so as to irradiate an ultraviolet light to the substrate. The ultraviolet light passes through the ultraviolet polarizer and irradiates to the pre-baked alignment material. A post-baking process is performed on the alignment material after being aligned, so as to fully cure the alignment material.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chia-Sheng Hsieh, Hsin-Min Fu, Hung-Yu Wu, Jan-Tian Lian
  • Patent number: 8873006
    Abstract: The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 28, 2014
    Assignee: Japan Display Inc.
    Inventors: Noboru Kunimatsu, Masaki Matsumori, Hidehiro Sonoda, Yasushi Tomioka, Toshiki Kaneko
  • Patent number: 8867003
    Abstract: A liquid crystal display device including a first substrate including a pixel electrode, a second substrate facing the first substrate and including a common electrode, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes a storage capacitive line. The liquid crystal display device further includes a domain forming member that is formed over a first region corresponding to the storage capacitive line and a second region adjacent to the first region. The domain forming member is formed with irregular parts including a first irregular part having an enlarged width, a second irregular part having a reduced width, and an external irregular part, which is closest to the first region of the irregular parts formed in the second region and has an enlarged width.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-hoo Yoo, Hee-wook Do, Mee-hye Jung, Sung-hoon Yang, Hyun-cheol Moon, Hye-ran You
  • Patent number: 8860914
    Abstract: A display device having an improved viewing angle by using a linear polarization structure, and a method of manufacturing the same. The display device includes a first substrate arrangement including a domain forming layer and a pixel electrode arranged on the domain forming layer, the pixel electrode having a cross type opening pattern, a second substrate arrangement including a common electrode arranged on an entire surface that faces the first substrate arrangement and a liquid crystal layer arranged between the first substrate arrangement and the second substrate arrangement, the liquid crystal layer including a plurality of liquid crystal molecules and a reactive mesogen to fix liquid crystal molecules and to produce a liquid crystal domain based on the cross type opening pattern.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Young Lee, Ju-Yeon Seo, Seong-Jun Lee, Yi Li, Seong-Ryong Lee, Yong-Kyu Jang
  • Patent number: 8860913
    Abstract: The present invention provides a liquid crystal display device producing less image sticking. The liquid crystal display device of the present invention comprises: a pair of substrates; and a liquid crystal layer between the substrates, wherein at least one of the substrates comprises an alignment film and a photopolymer film on the alignment film, the photopolymer film comprises polymers constituted by a photopolymerizable monomer, the photopolymerizable monomer includes two or more polymerizable functional groups, the polymerizable functional groups are bonded to each other through two or more aromatic rings, the aromatic rings include at least one naphthalene ring, and a bond between the naphthalene ring and another aromatic ring has a rotational degree of freedom.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Yuichiro Yamada, Masanobu Mizusaki
  • Patent number: 8854581
    Abstract: The present invention has an object of providing a liquid crystal display device having a high transmittance or a high viewing angle characteristic. A liquid crystal display device according to the present invention includes a pixel electrode (30) including a peripheral portion (36), an island portion (32) and a plurality of branch portions (34). The plurality of branch portions (34) are formed of a plurality of first through fourth branch portions (34A through 34D) respectively extending in first through fourth directions. By these branch portions, first through fourth regions (35A through 35D) in which liquid crystal molecules are aligned in different directions from each other at the time of voltage application are formed.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: October 7, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Yoshida, Kunihiro Tashiro
  • Patent number: 8854584
    Abstract: A liquid crystal display (LCD) panel comprises scan lines, data lines and a plurality of switch units, and a pixel electrode disposed in a pixel region formed by the scan lines intersecting with the data lines. The pixel electrode comprises a peripheral portion, branch portions and an opening portion located inside the peripheral portion. The branch portions include a first branch portion having plurality of first branches parallel with each other and a second branch portion having a plurality of second branches parallel with each other. The opening portion comprises a first opening and a second opening perpendicularly connected with the first and second branches respectively. The first and second openings are located on midperpendiculars of the first branches and the second branches respectively. Extension lines of the first and second openings intersect with one scan line and one data lines to form a right triangle respectively.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: October 7, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chih-tsung Kang
  • Patent number: 8830431
    Abstract: The present invention provides a pixel electrode structure and a LCD device. The pixel electrode contains linear backbone electrodes, a first backbone electrode and a second backbone electrode, whose centers cross each other, thereby forming four display regions. Each display region is configured with a number of linear spine electrodes at intervals, and the edges of the outer ends of the spine electrodes in the same display are aligned. Yet, the edges of the outer ends of the backbone electrodes are not aligned with those of the spine electrodes. Through the present invention, the display quality at the outer ends of the backbone electrodes is enhanced.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Xiaohui Yao, Je-Hao Hsu, Shyh-Feng Chen
  • Patent number: 8830433
    Abstract: A liquid crystal display device includes a liquid crystal display panel, two polarizing plates, and a backlight unit. A pixel included in the liquid crystal display panel is divided into a first domain and a second domain and includes a second electrode and a third electrode. The third electrode is insulated from and overlapped with the second electrode. First liquid crystals disposed in the first domain are twisted in a direction different from a direction in which the second liquid crystals disposed in the second domain are twisted. The liquid crystal display device selectively drives the second electrode and the third electrode, thereby controlling a viewing angle thereof.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: September 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeonguk Heo, Chang-Jae Yu
  • Patent number: 8830427
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing the first substrate. A first alignment layer formed on the first substrate includes a first area aligned in a first direction and a second area aligned in a second direction opposite to the first direction, and a second alignment layer formed on the second substrate includes a third area aligned in a third direction different from the first direction and a fourth area aligned in a fourth direction opposite to the third direction. Liquid crystal molecules in a liquid crystal layer disposed between the first and second alignment layers are aligned in different directions from each other in plural domains defined by the first to fourth areas. Thus, the liquid crystal display may have improved aperture ratio and transmittance.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 9, 2014
    Assignees: Samsung Display Co., Ltd., Industrial Cooperation Foundation Chongbuk National University
    Inventors: Youn Hak Jeong, Keunchan Oh, Seunghee Lee, Inyoung Cho, Sung min Kim
  • Patent number: RE45115
    Abstract: An MVA LCD including an active device array substrate, an opposite substrate and a liquid crystal layer is provided. The liquid crystal layer is disposed between the active device array substrate and the opposite substrate, the active device array substrate has pixel units, and the liquid crystal layer above each pixel unit is divided into several domain sets. Each domain set includes at least four domains having the same size, and at least the size of one of the domains in a domain set is different from the size of one of the domains in another domain set.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 9, 2014
    Assignee: Intellectual Ventures Fund 82 LLC
    Inventors: De-Jiun Li, Ta-Wei Wu, Chun-Ming Huang
  • Patent number: RE45283
    Abstract: To reduce viewing angle dependence of ? characteristics in a normally black liquid crystal display. Each pixel 10 has a first sub-pixel 10a and a second sub-pixel 10b which can apply mutually different voltages to their respective liquid crystal layers. Relationships ?V12 (gk)>0 volts and ?V12 (gk)??V12 (gk+1) are satisfied at least in a range 0<gk?n?1 if it is assumed that ?V12=V1?V2, where ?V12 is the difference between root-mean-square voltage V1 applied to the liquid crystal layer of the first sub-pixel 10a and root-mean-square voltage V2 applied to the liquid crystal layer of the second sub-pixel 10b.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: December 9, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Fumikazu Shimoshikiryo