With Plural Alignments On The Same Substrate Patents (Class 349/129)
  • Patent number: 8208106
    Abstract: A substrate for a liquid crystal display including a plurality of gate bus lines and a plurality of data bus lines that cross the gate bus lines, as well as a thin film transistor connected to one of the data bus lines. The display also includes a first electrode with a body portion and a plurality of branches extending from the body portion, wherein at least some of the branches include a first branch portion, which extends from the body portion and defines a first angle, and a second branch portion, which extends from the first branch portion, and which defines a second angle. The first angle is greater than said second angle, and both angles are between 0° and 90° Also included is a second electrode that overlaps at least a portion of the first electrode, and an insulation film between the first and second electrodes.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 26, 2012
    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
  • Publication number: 20120154727
    Abstract: A liquid crystal display panel including pixels, wherein at least one of the pixels includes a first sub-pixel charged with a first voltage and a second sub-pixel charged with a second voltage lower than the first voltage, a first substrate including a first sub-pixel electrode of the first sub-pixel and a second sub-pixel electrode of the second sub-pixel, a first alignment layer aligned in first and second directions in each of the first and second sub-pixels, a second alignment layer aligned in third and fourth directions in each of the first and second sub-pixels to form a plurality of domains in each of the first and second sub-pixels, and a liquid crystal layer disposed between the first and second alignment layers, wherein the first sub-pixel electrode includes a plurality of slits formed substantially parallel to a liquid crystal alignment direction in each of the domains of the first sub-pixel electrode.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 21, 2012
    Inventors: Haksun Chang, YongHwan Shin, Min-Sik Jung, Kyoungju Shin
  • Patent number: 8203679
    Abstract: An OCB mode liquid crystal display panel having a plurality of pixel regions includes a first substrate, a second substrate, dot liquid crystal polymer patterns and an OCB liquid crystal material. The first substrate has a first alignment treated layer thereon, the second substrate has a second alignment treated layer thereon, and the dot liquid crystal polymer patterns are on the first alignment treated layer and the second alignment treated layer. Each of the dot liquid crystal polymer patterns has an area between 1˜225 ?m2. The second substrate is opposite to the first substrate, and the OCB liquid crystal material is between the first substrate and the second substrate.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: June 19, 2012
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corporation, Hannstar Display Corporation, Chi Mei Optoelectronics Corporation, Industrial Technology Research Institute
    Inventors: Ze-Yu Yen, Ding-Jen Chen, Ya-Ting Wu, Cho-Ying Lin
  • Patent number: 8202748
    Abstract: A manufacturing method of a liquid crystal display apparatus, including disposing a pair of substrates to face each other, on which no surface alignment control films are formed; sealing a liquid crystal to which a polymerizable compound is added, between these substrates; polymerizing the polymerizable compound by irradiating UV rays when no voltage is applied; and forming a polymer near the surfaces of the substrates. The anchoring energy for the liquid crystal molecules on the substrate surface is controlled by controlling the composition, the adding amount and the polymerizing conditions of the polymerizable compound.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: June 19, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Sasabayashi, Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Hidefumi Yoshida, Kazutaka Hanaoka
  • Patent number: 8203677
    Abstract: The present invention provides a polarizing plate including: a layer of polarizer for polarizing incident light and emitting the polarized light; and a coating type optically anisotropic layer disposed on the side to which the polarized light is emitted from the polarizer layer.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 19, 2012
    Assignee: Sony Corporation
    Inventor: Eiji Sakai
  • Patent number: 8203678
    Abstract: A pixel unit of a liquid crystal display includes a first sub-pixel electrode coupled by a direct current path to a corresponding switching element and a second sub-pixel electrode capacitively connected to the first sub-pixel electrode. The second sub-pixel electrode has a protrusion extending upwardly toward a spaced apart common electrode. The common electrode has a cut-out directly above the protrusion.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: June 19, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hyun Kim, Gee-Bun Kim, Ae Shin
  • Patent number: 8203687
    Abstract: One or more embodiments of a display substrate include a base substrate and a pixel electrode. The base substrate has a pixel area defined thereon. The pixel electrode includes a low pixel electrode formed in the pixel area to receive a first voltage, a high pixel electrode spaced apart from the low pixel electrode along a first direction to receive a second voltage that is higher than the first voltage, and a liquid crystal molecule control part formed on at least one of the low and high pixel electrodes so as to control liquid crystal molecules disposed at an area corresponding to a boundary of the low and high pixel electrodes. The liquid crystal molecules disposed at a domain corresponding to a boundary between the low and high pixel electrodes may be controlled, so that the generation of stains or afterimages may be prevented at a boundary of domain areas.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: June 19, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nak-Cho Choi, Hee-Ra Bae, Mee-Hye Jung
  • Patent number: 8199294
    Abstract: To provide: a production method of a liquid crystal display device, the production method being capable of efficiently and stably providing alignment treatment for an alignment film of the liquid crystal display device, in which a plurality of domains is formed in a pixel region; and an exposure device for alignment treatment.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: June 12, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Iichiro Inoue, Koichi Miyachi
  • Patent number: 8199292
    Abstract: Disclosed is a liquid crystal display comprising a first substrate including wiring, which intersects to define unit pixels, and a first electrode formed in each unit pixel; a second substrate provided opposing the first substrate at a predetermined distance and including a second electrode formed over an entire surface of the second substrate, the second electrode generating an electric field with the first electrode; and a liquid crystal layer injected between the first substrate and the second substrate and including liquid crystal molecules that are horizontally oriented in one direction, the liquid crystal molecules, as a result of the electric field generated between the first and second substrates, having a symmetrically bent alignment about an imaginary center plane parallel to the first and second substrates at a center position therebetween, wherein the first electrode is protruded in a direction toward the second substrate at edges where orientation for the liquid crystal molecules starts.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Seung-Beon Park, Jong-Kun Song
  • Patent number: 8199295
    Abstract: This invention relates to a liquid crystal device wherein the surface profile of a surface alignment grating stabilises at least one stable state. The invention involves the introduction or breaks (34, 36, 38) or discontinuities into the grating (10) to divide the grating into a plurality of groove segments. The breaks are discontinuities in the grating in the groove direction, the grating having substantially the same groove direction on each side of the break. The introduction of breaks prevent free movement of defects along the groove of the grating and therefore help to stabilise the desired liquid crystal configuration, either a Defect state or a Continuous state. Suitable breaks involve gaps (34) in the groove ridges (30), necks (36) between the groove ridges (30) and slips or relative displacement (38) of the grating.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 12, 2012
    Assignee: ZBD Displays Limited
    Inventor: John C Jones
  • Patent number: 8194214
    Abstract: A liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a lower substrate and a pixel electrode. The pixel electrode is disposed in a pixel area of the first substrate, in which a first slit part extending along a first direction in a first zigzag shape and a second slit part extending along a second direction and passing through a first bent portion of the first slit part are disposed. The second slit part includes first edges opposite to each other which are inclined at a first angle. The second substrate includes an upper substrate and a common electrode. The common electrode is disposed on the upper substrate, in which a third slit part disposed between adjacent first slit parts and extended in a second zigzag shape is disposed.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 5, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jae-Jin Lyu, Seung-Beom Park, Hye-Ran You
  • Patent number: 8189152
    Abstract: The present invention provides a liquid crystal display device and a production method of a liquid crystal display device, capable of improving display qualities in a display region close to a frame region without causing any defects.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: May 29, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hidetoshi Nakagawa
  • Patent number: 8189155
    Abstract: An array panel is provided. The array panel includes a substrate, a common electrode, and pixel structures. Each pixel structure includes a first pixel electrode, a second pixel electrode, and a shield. The first pixel electrode has a central portion, first branches that connect to the central portion, and a connecting portion. The shield overlaps with at least the central portion of the first pixel electrode. The connecting portion connects the ends of at least two of the first branches. The central portion connects perpendicularly with one of the first branches; this branch overlaps with at least part of the common electrode so that the width of this branch is greater than or equal to that of the common electrode. The second pixel electrode, adjacent to the first pixel electrode, comprises a central portion and second branches that connect to the central portion.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: May 29, 2012
    Assignee: Au Optronics Corp.
    Inventors: Te-Wei Chan, Yi-Pai Huang, Chung-Yi Chiu, Yen-Ting Chen
  • Patent number: 8189154
    Abstract: A liquid crystal display device according to the present invention includes a plurality of pixels, each including first and second subpixels SP-A and SP-B. The reference alignment azimuths of liquid crystal molecules in the liquid crystal layer of the first subpixel SP-A include only first and second reference alignment azimuths with no third or fourth one. The reference alignment azimuths of liquid crystal molecules in the liquid crystal layer of the second subpixel SP-B include only the third and fourth reference alignment azimuths with no first or second one. In one vertical scanning period, the absolute value of an effective voltage applied to the liquid crystal layer of the first subpixel SP-A is greater than that of an effective voltage applied to the liquid crystal layer of the second subpixel SP-B.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 29, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hidetoshi Nakagawa
  • Patent number: 8189151
    Abstract: A liquid crystal display device comprising, a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first and second alignment films are perpendicular to each other, and the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: May 29, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koichi Miyachi
  • Patent number: 8189150
    Abstract: A liquid crystal display panel including a first substrate, a second substrate and a liquid crystal layer is provided. The first substrate includes a plurality of first unit regions, and each of the first unit regions includes at least a pixel region. A plurality of first alignment patterns are disposed in each of the pixel regions, wherein a width of the first alignment patterns in at least one first unit region is different from a width of the first alignment patterns in other first unit regions adjacent to the at least one first unit region. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Chungwa Picture Tubes, Ltd.
    Inventor: Yui-Chen Liu
  • Patent number: 8189153
    Abstract: A pixel structure including a substrate, a scan line, a data line, an active device, a capacitor electrode and a pixel electrode is described. The substrate has a pixel region. The active device is electrically connected to the scan line and the data line. The capacitor electrode is disposed on the substrate. The pixel electrode is disposed in the pixel region and electrically connected to the active device, wherein the pixel electrode includes a first extending part, a second extending part and branches. The first extending part is disposed above the capacitor electrode and electrically coupling with the capacitor electrode, wherein the capacitor electrode is not completely covered by the first extending part. The second extending part has an extending direction different from that of the first extending part. The branches extend from the first extending part and the second extending part to an edge of the pixel region.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 29, 2012
    Assignee: Au Optronics Corporation
    Inventors: Tien-Lun Ting, Chien-Huang Liao, Wen-Hao Hsu, Jenn-Jia Su
  • Patent number: 8184250
    Abstract: A liquid crystal display device comprising, a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first and second alignment films are perpendicular to each other, and the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: May 22, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koichi Miyachi
  • Patent number: 8184249
    Abstract: A liquid crystal display device includes: a first substrate having a black matrix, a color filter layer and a common electrode; a second substrate having gate lines, data lines and thin film transistors connected to pixel electrodes; a first alignment layer on the first substrate; a second alignment layer on the second substrate; and a liquid crystal layer having a plurality of liquid crystal molecules and positioned between the first and second alignment layers, wherein each of the first and second alignment layers has a first area with ion-altered side chains and a second area with non-altered side chains.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: May 22, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung Chan Kim, Tae Hoon Yoon, Jae Chang Kim, Joo Hong Seo, Chang Ho Oh, Ji Chul Lim
  • Patent number: 8178288
    Abstract: A method for fabricating a display substrate is provided. A substrate is provided first. After that, an alignment film coating and an alignment treatment are performed to the substrate, and a layer of photoreactive monomer material is coated on the surface of the substrate after the alignment treatment. Thereafter, the layer of photoreactive monomer material is selectively irradiated by UV light in an exposed region, and the layer of photoreactive monomer material in an unexposed region is removed for liquid crystal molecules to have different pretilt angles in the exposed region and the unexposed region.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: May 15, 2012
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., Au Optronics Corporation, Hannstar Display Corporation, Chi Mei Optoelectronics Corporation, Industrial Technology Research Institute, TPO Displays Corp.
    Inventors: Ze-Yu Yen, Ding-Jen Chen, Ya-Ting Wu, Jian-Lung Chen
  • Patent number: 8174651
    Abstract: A liquid crystal display includes a first insulating substrate with a top surface and a bottom surface. A pixel electrode is formed on the top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode with the first opening pattern is substantially rectangular in shape with a first long side and a second long side, and first short side and a second short side. The pixel electrode is divided into an upper region defined by the first long side and the second long side and the first short side, and a lower region defined by the first long side and the second long side and the second short side. A second insulating substrate with a top surface and a bottom surface is arranged parallel to the first insulating substrate at a predetermined distance from the same such that the bottom surface of the second insulating substrate faces the top surface of the first insulating substrate.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Jae-Jin Ryu
  • Patent number: 8174653
    Abstract: A liquid crystal display device comprising, a first substrate, a second substrate, a liquid crystal layer provided between the substrates, a first alignment film provided on the liquid crystal layer side surface of the first substrate, and a second alignment film provided on the liquid crystal layer side surface of the second substrate, wherein the liquid crystal layer includes liquid crystal molecules with negative dielectric anisotropy, the first alignment film and the second alignment film align the liquid crystal molecules substantially vertically to the alignment film surfaces and align the liquid crystal molecules near the first alignment film and the second alignment film such that alignment directions of the liquid crystal molecules near the first and second alignment films are perpendicular to each other, and the first alignment film and the second alignment film are photo-alignment films made of a material having a photosensitive group.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: May 8, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koichi Miyachi
  • Patent number: 8174652
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: May 8, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8169577
    Abstract: A thin-film transistor photosensor and a liquid crystal display (LCD) panel respectively utilize a dielectric layer having F—SiOC: H compound and a bump structure having F—SiOC: H compound so as to form a thin-film transistor photosensor having lower resistor-capacitor loading (RC loading) and an LCD panel having low-dielectric F—SiOC: H compound respectively. In addition, a method of forming a dielectric layer having F—SiOC: H compound utilizes gases including trimethyl silane, carbon tetrafluoride, argon, and oxygen for thin-film deposition process so as to form a low-k F—SiOC: H compound dielectric layer.
    Type: Grant
    Filed: October 18, 2009
    Date of Patent: May 1, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Cho-Yu Li
  • Patent number: 8169576
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: May 1, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8164725
    Abstract: A liquid crystal device includes: a circuit substrate; a counter substrate disposed so as to be opposed to the circuit substrate; a liquid crystal layer interposed between the circuit substrate and the counter substrate, the liquid crystal layer showing vertical alignment as an initial alignment state; a first alignment layer manufactured on a side of the counter substrate using a coating process, the side facing the liquid crystal layer, the first alignment layer having a vertical alignment function; and a second alignment layer manufactured on a side of the circuit substrate using a vacuum process, the side facing the liquid crystal layer, the second alignment layer generating a pretilt.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: April 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Nobukazu Nagae, Takeshi Miyashita
  • Publication number: 20120092603
    Abstract: An object of the present invention is to provide a liquid crystal display device in which a risk of generation of a image sticking is reduced. A liquid crystal display device (100) of the present invention includes a pair of glass substrates (11) and (21), a liquid crystal layer (30) provided between the pair of glass substrates (11) and (21), an alignment layer (23) provided between the liquid crystal layer (30) and at least one of the pair of glass substrates (11) and (21), and an alignment sustaining layer (24) for defining a direction in which liquid crystal molecules constituting the liquid crystal layer (30) are inclined, the alignment sustaining layer (24) being provided between the alignment layer (23) and the liquid crystal layer (30), the alignment layer (23) and the alignment sustaining layer (24) being covalently bound to each other.
    Type: Application
    Filed: April 28, 2010
    Publication date: April 19, 2012
    Inventors: Masanobu Mizusaki, Youhei Nakanishi
  • Patent number: 8159625
    Abstract: An active matrix substrate including a substrate, a plurality of scan lines, a plurality of data lines, a plurality of independent common line patterns, and a plurality of pixels is provided. The scan lines, data lines, and common line patterns are disposed on the substrate. The pixels are arranged in array on the substrate, wherein each pixel is electrically connected to corresponding scan line and data line, and the common line patterns are distributed under each pixel. Each pixel includes a plurality of active components and a plurality of pixel electrodes. Each of the pixel electrodes is electrically connected to corresponding scan line and data line through different active components. The capacitance coupling effect between each of the pixel electrodes and common line patterns are different. Additionally, an inspection method for the active matrix substrate and a liquid crystal display having the active matrix substrate are further provided.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 17, 2012
    Assignee: Au Optronics Corporation
    Inventors: Wei-Kai Huang, Ying-Tsang Liu, Chen-Shun Tsai, Jeng-Shin Chen, Yu-Chieh Lin
  • Patent number: 8159640
    Abstract: A liquid crystal display device in which alignment control in a vertical-alignment-type liquid crystal layer is excellent at a side portion or a corner portion of a pixel electrode. The liquid crystal display device includes a pixel electrode 17 including openings 18 of slits as an alignment control mechanism, a common electrode 33 including linear protrusions 34 to 34c as an alignment control mechanism, the electrodes being opposed to each other, and a vertical-alignment-type liquid crystal layer 40 which is sandwiched between the electrodes, wherein the linear protrusion 34c is placed at a position where the linear protrusion 34c controls alignment in the liquid crystal layer inside a position where an oblique electric field 59 which is generated at the edge of an corner portion 17e of the pixel electrode 17 at the time when a voltage is applied between the electrodes controls the alignment in the liquid crystal layer.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: April 17, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Inoue, Hidehiko Yamaguchi
  • Patent number: 8154695
    Abstract: A liquid crystal display (LCD) comprises a first substrate comprising a pixel electrode comprising one or more first domain-forming features and further comprising a first vertical alignment film disposed on the pixel electrode; a second substrate facing the first substrate and comprising a common electrode which comprises one or more second domain-forming features and further comprises a second vertical alignment film disposed on the common electrode; and a liquid crystal compound interposed between the first and second substrates, wherein the liquid crystal compound comprises liquid crystal molecules, ultraviolet (UV) hardening monomers and UV hardening initiators, and the liquid crystal molecules are pre-tilted to form an angle greater than 88 degrees but less than 90 degrees with respect to the first substrate when no driving power is applied to the pixel and common electrodes. Fast response time is provided in some embodiments.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Won Sohn, Jong-ho Son, Seung-beom Park, Seon-ah Cho, Jun-hee Na
  • Patent number: 8154678
    Abstract: The present invention provides a display device which can display characters clearly and display images smoothly. An area gray scale method is adopted and a configuration of one pixel is changed depending on a mode, by selecting one or more display regions in each pixel. When characters are needed to be displayed clearly, one pixel is configured by selecting a stripe arrangement. Thus, clear display can be conducted. When images are needed to be displayed, one pixel is configured by selecting an indented state. Thus, smooth display can be conducted.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: April 10, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Shunpei Yamazaki
  • Patent number: 8149362
    Abstract: A liquid crystal display (LCD) device having an alignment film of which pretilt angle and azimuthal angle can be adjusted without ultraviolet irradiation and a method for fabricating the LCD device are provided. A liquid crystal display having a thin film transistor substrate and a color filter substrate facing each other and a liquid crystal layer sealed between the substrates includes a first alignment film having a pattern which defines a first and second alignment domains on the thin film transistor substrate and a second alignment film formed on the color filter substrate.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: April 3, 2012
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Jae Hoon Kim, You Jin Lee, Hak Rin Kim, Jong Wook Jung
  • Patent number: 8149363
    Abstract: A VA-mode liquid crystal display device which includes a pair of alignment sustaining layers 34a and 34b formed by a photopolymerized material on surfaces of a pair of vertical alignment films 32a and 32b which are closer to a liquid crystal layer, and a cruciform opening 22a provided only in a counter electrode. When a predetermined voltage is applied across the liquid crystal layer, four liquid crystal domains are formed such that the azimuths of the directors of the respective liquid crystal domains are different from one another and form an angle of about 45? relative to the polarization axes of a pair of polarizing plates. When no voltage is applied across the liquid crystal layer, the pretilt azimuths of liquid crystal molecules included in regions respectively corresponding to the four liquid crystal domains are regulated by the alignment sustaining layers 34a and 34b.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: April 3, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshito Hashimoto, Hiroyuki Ohgami, Masumi Kubo, Masayuki Soga
  • Patent number: 8149377
    Abstract: A tunable-focusing liquid crystal lens (TLCL) cell has a liquid crystal layer arranged within a cell gap defined between substrates, a layer of optically transparent material arranged between the first substrate and the LC layer, and a liquid crystal alignment layer arranged between the optically transparent layer and the LC layer. The alignment layer is provided on a third optically transparent substrate having a non-planar shape for giving a non-planar profile to the LC layer, which substrate is obtained from a flexible sheet initially provided with the alignment layer and then formed into the non-planar shape. The lens further has a first optically transparent electrode provided on the second substrate, a second optically transparent electrode provided on either or both of first and third substrates. The electrodes are arranged to generate an electric field acting on the LC layer to change the focal distance of the LC cell. Methods for fabricating such TLCL cell are also provided.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: April 3, 2012
    Assignee: LensVector Inc.
    Inventors: Vladimir Presniakov, Tigran Galstian, Karen Asatryan, Amir Tork, Aram Bagramyan, Armen Zohrabyan
  • Patent number: 8149361
    Abstract: The present invention provides a liquid crystal display including a first substrate including a first alignment layer, gate lines, and data lines, a second substrate facing the first substrate and including a second alignment layer, and a liquid crystal layer disposed between the first substrate and the second substrate. A plurality of pixels are arranged in a matrix defined by the gate lines and the data lines, and alignment directions of the first alignment layer and the second alignment layer in a first pixel are different than alignment directions in a neighboring pixel.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bong-Sung Seo, Jun-Woo Lee, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung
  • Patent number: 8144294
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first insulation substrate; a pixel electrode disposed on the first insulation substrate and including a first cutout; a second insulation substrate facing the first insulation substrate; and a common electrode disposed on the second insulation substrate and a second cutout arranged alternately with the first cutout, wherein at least one of the first cutout and the second cutout includes a stem and a plurality of first slits and a plurality of second slits extended from the stem and obliquely inclined with respect to the length direction of the stem, and an inclined direction of the first slits is opposite to an inclined direction of the second slits.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 27, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jae-Jin Lyu, Seung-Beom Park
  • Patent number: 8134670
    Abstract: A liquid crystal panel according to an exemplary embodiment of the present invention includes a substrate, and a pixel electrode arranged on the substrate. The pixel electrode includes a first subpixel electrode and a second subpixel electrode separated from each other, and the second subpixel electrode includes a first electrode part disposed above the first subpixel electrode and a second electrode part disposed below the first subpixel electrode and connected to the first electrode part. At least one first notch is arranged on at least one edge of the first subpixel electrode or the second subpixel electrode.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: March 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mee-Hye Jung, Bong-Sung Seo, Young-Gu Kim, Ki-Won Kim, Min-Sik Jung, Byoung-Hun Sung
  • Patent number: 8134671
    Abstract: A liquid crystal display device including a pair of substrates sandwiching liquid crystal molecules, a plurality of gate bus lines, and a plurality of data bus lines, with each of the data bus lines extending to intersect the gate bus lines and bending in a zigzag manner. A plurality of pixels are formed in areas enclosed by the data and gate bus lines, with a plurality of pixel electrodes, each covering a substantial area of one of the pixels. A plurality of domain regulating structures for regulating orientation directions of the liquid crystal molecules and for forming multiple domains are formed in each of the pixels. At least one of the domain regulating structures bends along a first side edge of the pixel electrode and domains are divided in accordance with the bending of the domain regulating structure.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Arihiro Takeda, Katsufumi Ohmuro, Yoshio Koike, Shingo Kataoka, Takahiro Sasaki, Takashi Sasabayashi, Hideaki Tsuda, Hideo Chida, Makoto Ohashi, Kenji Okamoto, Hisashi Yamaguchi, Minoru Otani, Makoto Morishige, Noriaki Furukawa, Tsuyoshi Kamada, Yoshinori Tanaka, Atuyuki Hoshino, Shougo Hayashi, Hideaki Takizawa, Takeshi Kinjou, Makoto Tachibanaki, Keiji Imoto, Tadashi Hasegawa, Hidefumi Yoshida, Hiroyasu Inoue, Yoji Taniguchi, Tetsuya Fujikawa, Satoshi Murata, Manabu Sawasaki, Tomonori Tanose, Siro Hirota, Masahiro Ikeda, Kunihiro Tashiro, Kouji Tsukao, Yasutoshi Tasaka, Takatoshi Mayama, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 8134668
    Abstract: The present invention provides: a liquid crystal display device capable of improving display qualities and yield, the liquid crystal display device having two or more domains in a pixel through an alignment treatment that has been provided for a substrate over several times; and a production method thereof.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hidetoshi Nakagawa
  • Patent number: 8134669
    Abstract: Disclosed is a liquid crystal display device including a TFT substrate on which a picture element electrode is provided for each picture element, a counter substrate having a common electrode provided thereon, and a liquid crystal contained between the TFT and counter substrates, the liquid crystal display device achieving to shorten response time (rise time) by utilizing the following phenomenon that when a voltage applied to the picture element electrode changes from a first voltage (e.g., black display voltage) to a second voltage (e.g., white display voltage), transmittance increases to maximum transmittance with a change in the state of the alignment of liquid crystal molecules and then decreases to transmittance in a stable state corresponding to the second voltage.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Inoue, Takahiro Sasaki, Takashi Sasabayashi
  • Patent number: 8130349
    Abstract: A substrate for a display apparatus includes a plate, a switching element, an insulating layer, and a partition wall. The plate has a reflection region on which a light that is provided from an exterior to the substrate is reflected and a transmission region through which a light generated from a backlight assembly passes. The switching element is on the plate. The insulating layer is on the plate having the switching element. The transmission region of the insulating layer is recessed when compared to the reflection region of the insulating layer. The insulating layer has a contact hole through which a first electrode of the switching element is partially exposed. The partition wall divides the transmission region into a plurality of transmission portions. Advantageously, an image display quality of the display apparatus is improved, and manufacturing cost is decreased.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Sang Park, Sang-Woo Kim, Jae-Young Lee, Sung-Eun Cha, Jae-Ik Lim, Jae-Hyun Kim
  • Patent number: 8130348
    Abstract: To provide: a production method of a liquid crystal display device, the production method being capable of efficiently and stably providing alignment treatment for an alignment film of the liquid crystal display device, in which a plurality of domains is formed in a pixel region; and an exposure device for alignment treatment.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: March 6, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Iichiro Inoue, Koichi Miyachi
  • Patent number: 8130350
    Abstract: The present invention provides a liquid crystal display device including a liquid crystal layer disposed between a first substrate and a second substrate, a pixel electrode in a reflection region and a transmission region over the first substrate, a film for adjusting a cell gap in the reflection region over the first substrate, and an opposite electrode in the reflection region and the transmission region over the second substrate. The pixel electrode in the reflection region is provided over the film and reflects light. The pixel electrode in the transmission region transmits light. The pixel electrode in the reflection region and the transmission region includes a slit. The slit is overlapped with at least a part of a step portion which is provided by the film between the reflection region and the transmission region.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: March 6, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8125584
    Abstract: The present invention provides a liquid crystal display panel capable of providing a high contrast ratio with a storage capacitance being secured, and also provides a liquid crystal display device including such a panel. The present invention is a liquid crystal display panel having a structure in which a liquid crystal layer is interposed between a first substrate and a second substrate, wherein at least one of the first substrate and the second substrate includes a projection for liquid crystal alignment control, the first substrate includes a scanning signal line, a data signal line, a drain electrode electrically connected to a pixel electrode, a switching element, and a storage capacitor wiring, the storage capacitor wiring includes a main wiring part and a branch part, the branch part being connected to the main wiring part and overlapping with the projection for liquid crystal alignment control.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: February 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Horiuchi, Toshiaki Fujihara, Masakatsu Tominaga, Hitoshi Matsumoto, Hironobu Sawada, Ryohki Itoh
  • Patent number: 8125599
    Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
  • Patent number: 8125600
    Abstract: A liquid crystal display device including first and second substrates which are arranged to be opposite to each other; liquid crystal with negative dielectric anisotropy contained between the first and the second substrates; a polymer which determines directions in which liquid crystal molecules tilt when voltage is applied: and a plurality of picture elements located on the first substrate. At least one of the picture elements on the first substrate includes a switching element; a first sub picture element electrode including a plurality of band-shaped microelectrode parts and a first connecting electrode part electrically connecting the microelectrode parts of the first sub picture element electrode with one another; and a second sub picture element electrode including a plurality of band-shaped microelectrode parts and a second connecting electrode part electrically connecting the microelectrode parts of the second sub picture element electrode with one another.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: February 28, 2012
    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: 8125598
    Abstract: A method of forming an alignment layer includes; providing a substrate having a base substrate and a photosensitive polymer layer disposed on the base substrate, the base substrate including a plurality of unit pixel areas, each of which is divided into a plurality of sub-pixel areas, photoaligning the photosensitive polymer layer by irradiating first light to a first exposure area of a first unit pixel area, the first light being inclined at a first angle with respect to the substrate in a first direction, and substantially simultaneously photoaligning the photosensitive polymer layer by irradiating second light to a second exposure area of a second unit pixel area at substantially the same time as the first light is irradiated to the first exposure area, the second light being inclined at a second angle with respect to the substrate in a second direction.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: February 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Soo Jung, Nak-Cho Choi
  • Patent number: 8120738
    Abstract: A liquid crystal display device with a vertical alignment mode in which a high image quality and a wide viewing angle are secured includes a liquid crystal layer having an initial state of vertical alignment interposed between a pair of substrates opposite to each other. A plurality of alignment control structures including a dielectric protrusion protruded toward the liquid crystal layer from the inner surface of the substrate is provided in a dot area constituting one unit of display. When that the dielectric constant of the dielectric protrusion is ?t1, the dielectric constant of a major axis direction of liquid crystal molecules constituting the liquid crystal layer is ?//, and the dielectric constant of a minor axis direction thereof is ??, the dielectric constants satisfy the expression ??>?//>?t1.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: February 21, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Maeda
  • Patent number: 8120737
    Abstract: A liquid crystal display device including a pair of spaced and opposed substrates, an electrode and a first alignment layer formed on one substrate, an electrode and a second alignment layer formed on the other substrate, and liquid crystal filled between the pair of substrates. The first alignment layer defines two regions of different alignment directions, within one pixel, with the two regions of the first alignment layer being separated by a first boundary, where the two different alignment directions of the first alignment layer are generally parallel to the first boundary, but extend in opposite directions, and where each region of the first alignment layer is treated to realize an alignment with a pretilt angle by the irradiation of ultraviolet rays.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: February 21, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidefumi Yoshida, Tsutomu Seino, Yasutoshi Tasaka
  • Publication number: 20120033159
    Abstract: A VA-mode liquid crystal display device having a high display quality is provided. A liquid crystal display device according to the present invention includes a vertical alignment type liquid crystal layer; a first substrate and a second substrate facing each other with the liquid crystal layer interposed therebetween; a first electrode provided in the first substrate on the liquid crystal layer side and a second electrode provided in the second substrate on the liquid crystal layer side; and a first alignment film provided between the first electrode and the liquid crystal layer and a second alignment film provided between the second electrode and the liquid crystal layer. The liquid crystal display device includes a plurality of pixel areas located in a matrix.
    Type: Application
    Filed: April 12, 2010
    Publication date: February 9, 2012
    Inventors: Iichiro Inoue, Shinichi Terashita, Koichi Miyachi