For Parallel Alignment Patents (Class 349/132)
  • Patent number: 10747059
    Abstract: A display apparatus including a first substrate, a second substrate and a display medium is provided. The display medium is disposed between the first substrate and the second substrate. The first substrate includes a first data line, a second data line and a pixel. The first data line and the second data line respectively disposed over a first base plate. The pixel includes a pixel electrode layer and a common electrode layer. The pixel electrode layer is electrically connected to one of the first data line and the second data line. The common electrode layer is formed over the pixel electrode layer and includes a first slit nearest to the first data line. The first slit has a first end and a second end. The first slit is bent at the first end of the first slit but is not bent at the second end of the first slit.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: August 18, 2020
    Assignee: INNOLUX CORPORATION
    Inventors: Shun-Chen Yang, Yu-Lun Hsu, Ying-Tong Lin
  • Patent number: 10739650
    Abstract: An electro-optical liquid crystal cell comprising a first substrate, a first layer of indium tin oxide (ITO) on the first substrate, a first layer of h-BN on the first layer of ITO on the first substrate, and a layer of liquid crystal on the first layer of h-BN on the first layer of ITO on the first substrate. Furthermore, the electro-optical liquid crystal cell can comprise a second layer of h-BN, a second layer of ITO, and a second substrate. This h-BN cell exhibits the required electro-optic effect needed for a liquid crystal display. This h-BN cell exhibits high optical transmission.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 11, 2020
    Assignee: The Government of the United States of America, as represented the Secretary of the Navy
    Inventor: Rajratan Basu
  • Patent number: 10627681
    Abstract: The object is to provide a liquid crystal display reducing degradation in image quality. A liquid crystal display apparatus comprises a first planar electrode, a first insulator layered over an upper surface of the first planar electrode, a planar pixel electrode layered over an upper surface of the first insulator, a second insulator layered over an upper surface of the pixel electrode, a second planar electrode that covers the pixel electrode and that is layered over an upper surface of the second insulator, and a liquid crystal layer disposed over an upper surface of the second planar electrode.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 21, 2020
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventor: Hideki Ito
  • Patent number: 10596787
    Abstract: A laminated glazing comprises two plies of glass having an interlayer structure laminated therebetween. The interlayer structure comprises a first sheet of an interlayer material framing a suspended particle device film incorporated therein. The interlayer material is chosen to minimize the migration of the components of the interlayer material into the suspended particle device film. Preferably, the interlayer material does not contain plasticizers, or contains a plasticizer which does not diffuse into the suspended particle device film structure.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: March 24, 2020
    Assignees: PILKINGTON GROUP LIMITED, PILKINGTON AUTOMOTIVE LIMITED
    Inventors: Michael Robert Greenall, Ashley Carl Torr, Jonathan Peter Voss
  • Patent number: 10216051
    Abstract: A liquid crystal display including: a display area which includes an upper substrate, a lower substrate, pixels and a liquid crystal layer interposed between the upper and lower substrates; and a measuring unit including a tag portion, a common voltage applying portion, and a pixel voltage applying portion, in which the common voltage applying portion and the tag portion, and the pixel voltage applying portion and the tag portion are connected to each other, a data conductor, a common electrode, a passivation layer, and a pixel electrode are disposed on the common voltage applying portion with substantially the same thickness as at least one of the pixels of the display area, a first part of the data conductor of the common voltage applying portion directly contacts the pixel electrode, and a second part of the data conductor of the common voltage applying portion directly contacts the common electrode.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yu-Jin Jeon, Jae-Hyun Park, Jae Ho Choi, Sung Chul Hong
  • Patent number: 9696253
    Abstract: Disclosed herein are a microchip provided with a titanium oxide film between a glass substrate and a metal thin film; and a method for forming the metal thin film and the titanium oxide film on the glass substrate of the microchip. The microchip has a second microchip substrate that has the metal thin film inside a channel, and the titanium oxide film, which has a low extinction coefficient, is provided as a buffer layer between the substrate and the metal thin film such as a gold film.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 4, 2017
    Assignee: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Kinichi Morita, Toshikazu Kawaguchi
  • Patent number: 9601526
    Abstract: A display device is provided. A substrate includes a thin film transistor. A pixel electrode is connected to the thin film transistor. A common electrode is formed on the pixel electrode. A microcavity including liquid crystal molecules is interposed between the pixel electrode and the common electrode. A roof layer is formed on the common electrode. The roof layer includes at least one protrusion. A support member is formed under the at least one protrusion and in a column shape. The support member is surrounded by the liquid crystal molecules. An overcoat is formed on the roof layer and a side of the microcavity.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Hwa Lee, Kwang-Chul Jung, Tae Woo Lim
  • Patent number: 9500913
    Abstract: A display device includes a substrate including a pixel area, a thin-film transistor formed on the substrate, a pixel electrode connected to the thin-film transistor, a common electrode formed on the pixel electrode, a space formed between the pixel electrode and the common electrode, and a roof layer formed on the common electrode. The common electrode and the roof layer include a protrusion protruding from at least one of an upper edge and a lower edge of the pixel area.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: November 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Keun Lee, Yeun Tae Kim, Nam Seok Roh, Hae Ju Yun
  • Patent number: 9470938
    Abstract: A first substrate includes a gate line extending in a first direction and a source line extending in a second direction. A first sub-common electrode is formed on the gate line. A first main-common electrode is formed along the source line so as to be connected with the first sub-common electrode. A second main-common electrode is formed extending in the second direction and facing the source line. The second main-common electrode is set to the same potential as the first main-common electrode. A second substrate includes a third main-common electrode extending in the second direction so as to face the second main-common electrode. The third main-common electrode is set to the same potential as the second main-common electrode. A second sub-common electrode is connected with the third main common electrode. The second sub-common electrode is formed so as to face the first sub-common electrode on the gate line.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 18, 2016
    Assignee: Japan Display Inc.
    Inventors: Yusuke Morita, Jin Hirosawa
  • Patent number: 9411194
    Abstract: Provided are a display device and a manufacturing method thereof capable of improving a viewing angle. The display device includes: a substrate; a switching element; a pixel electrode; a common electrode; a roof layer; a liquid crystal layer; and an encapsulation layer. The switching element is on the substrate. The pixel electrode is connected with the switching element. The common electrode is spaced apart from the pixel electrode on the pixel electrode with a plurality of microcavities comprising a microcavity therebetween. The roof layer is on the common electrode. The liquid crystal layer fills the microcavity. The encapsulation layer is on the roof layer to seal the microcavity, in which the common electrode includes a protrusion protruding upwards from a portion contacting an upper surface of the microcavity.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: August 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun Hee Han, Hae Ju Yun
  • Patent number: 9146444
    Abstract: Provided is a liquid crystal element in which the liquid crystal layer shows less thickness variation. A spacer 12 includes a first spacer 12a, a second spacer 12b made of resin, and a third space 12c made of resin. The first spacer 12a is formed of an annular glass or metal sheet in which an opening 12a1 constituting an interior space 18 is formed. The second spacer 12b has a smaller thickness than the first spacer 12a. The third spacer 12c has a smaller thickness than the first spacer 12a. An opening 12b2, 12c2 connected to the opening 12a1 in the first spacer 12a and constituting an inlet 17 is formed in at least one of the second and third spacers 12b, 12c.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: September 29, 2015
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Masanori Wada, Takasi Akimoto, Kiichi Ohkubo
  • Patent number: 9025121
    Abstract: Embodiments of the invention disclose a pixel unit and an array substrate of an LCD device with an FFS mode; the pixel unit includes a pixel electrode and a common electrode insulated from each other, the pixel electrode includes at least two branch electrodes arranged in parallel and an end electrode connecting to ends of the branch electrodes; the branch electrode includes a body and an inclined connection part, the inclined connection part is connected between an end of the body and the end electrode, and extends in a direction different from extension direction of the body; at least one of the branch electrodes includes a protrusion at an end of the body; the protrusion is arranged opposite to the end electrode along the extension direction of the body. Embodiments of the invention can suppress the DLS phenomenon at the edge of the pixel unit, thereby improving display performance.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: May 5, 2015
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Ting Zhou, Boping Shen
  • Publication number: 20150055045
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a first source line and a second source line extending in a first direction, a main pixel electrode arranged between the first source line and a second source line and extending in the first direction, and a pair of first main common electrodes arranged on the first source line and the second source line interposing an insulating layer and extending in the first direction, respectively. The second substrate includes a pair of second main common electrode arranged above the first main common electrode and extending in the first direction, and the first main common electrode is connected with the second main common electrode. A liquid crystal layer is held between the first substrate and the second substrate.
    Type: Application
    Filed: October 8, 2014
    Publication date: February 26, 2015
    Applicant: JAPAN DISPLAY INC.
    Inventors: Koji YAMAMOTO, Jin Hirosawa
  • Publication number: 20150022769
    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: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Applicant: Japan Display Inc.
    Inventors: Yusuke Morita, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Keiji Tago, Kazuya Daishi
  • 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: 8902390
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a cross-shaped pixel electrode which includes a main pixel electrode and a sub-pixel electrode, and a second substrate including a common electrode which includes main common electrodes and sub-common electrodes. A first horizontal inter-electrode distance between the main pixel electrode and the main common electrode is less than a second horizontal inter-electrode distance between the sub-pixel electrode and the sub-common electrode and is greater than a vertical inter-electrode distance between the main pixel electrode and the main common electrode.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: December 2, 2014
    Assignee: Japan Display Inc.
    Inventors: Jin Hirosawa, Arihiro Takeda
  • 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
  • Publication number: 20140320793
    Abstract: A liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a gate line and an auxiliary capacitance line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, and a pixel electrode having a main pixel electrode arranged on the auxiliary capacitance line and extending in the first direction. The second substrate includes a common electrode having a main common electrode arranged above the gate line and extending in the first direction. A liquid crystal layer is held between the first substrate and the second substrate having liquid crystal molecules. The liquid crystal molecules are initially aligned in the first direction in a splay alignment state between the first substrate and the second substrate in a state where electric field is not formed between the pixel electrode and the common electrode.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 30, 2014
    Applicant: JAPAN DISPLAY, INC.
    Inventor: Jin HIROSAWA
  • Patent number: 8873009
    Abstract: A liquid crystal display device includes first and second substrates. The first substrate includes a pixel electrode covered by a first alignment film and having a belt-shaped main pixel electrode. The first alignment film is alignment processed in a first alignment treatment direction substantially in parallel with an extending direction of the main pixel electrode. The second substrate includes a common electrode arranged on both sides sandwiching the pixel electrode and extending substantially in parallel with the extending direction of the main pixel electrode. A sub-common electrode extends in a direction crossing the extending direction of the main pixel electrode on one end side of the main pixel electrode located on a starting side of the first alignment treatment direction. A second alignment film is processed in a second alignment treatment direction substantially in the same direction as the first alignment treatment direction.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Japan Display Inc.
    Inventor: Jin Hirosawa
  • 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: 8848148
    Abstract: According to one embodiment, a liquid crystal display device includes, a first substrate including a common electrode, a pixel electrode in which a slit facing the common electrode is formed, and a first alignment film, a second substrate including a second alignment film, and a liquid crystal layer which is held between the first alignment film and the second alignment film and is formed of a material having a dielectric constant anisotropy in a range of +3.3 or more to +5.3 or less at a transition temperature of 75° C.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 30, 2014
    Assignee: Japan Display Inc.
    Inventors: Youichi Asakawa, Hirofumi Wakemoto
  • Patent number: 8842250
    Abstract: A liquid crystal display device includes a first and a second substrate placed opposite each other, a first electrode provided on the first substrate extending in a first direction, a second electrode provided on the second substrate extending in a second direction that is orthogonal to the first direction, and a vertically-aligned liquid crystal layer provided between the two substrates. A pixel is defined where the two electrodes intersect, and alignment treatment is performed to the first or second substrate in a direction parallel to the first direction. The first electrode has a linear shape in which electrode edges on either side extend in the first direction, and the second electrode is of a polygonal line shape in which an electrode edge of one side includes a line segment which obliquely crosses the first direction, and the pixel is demarcated by pixel edges including obliquely crossing line segments.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 23, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshihisa Iwamoto, Kunihiko Katano, Hiroto Fukushima
  • Patent number: 8767156
    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: August 3, 2011
    Date of Patent: July 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Publication number: 20140168589
    Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device having excellent display quality, with reduced string-like defects that occur in display pixels. The liquid crystal display panel of the present invention includes a pair of substrates and a liquid crystal layer interposed between the pair of substrates, wherein at least one of the pair of substrates includes a photo-alignment film, the photo-alignment film aligns liquid crystal molecules horizontally to a main surface of the at least one of the pair of substrates, and the photo-alignment film has a film thickness of 50 nm or more.
    Type: Application
    Filed: August 23, 2012
    Publication date: June 19, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Isamu Miyake, Koichi Miyachi
  • Patent number: 8743323
    Abstract: A liquid crystal display panel includes: a first substrate and a second substrate disposed so as to face each other with a liquid crystal layer being held between the first substrate and the second substrate, a first electrode and a second electrode across which an electric field is applied to the liquid crystal layer being formed on the first substrate, a subpixel for display and a subpixel for control of a view angle being disposed on the same electrode, in which a plurality of slit-like openings are formed in the second electrode in the subpixel for control of a view angle, and a light blocking member is formed in a central position of a width of each of the plurality of slit-like openings in terms of planar view.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 3, 2014
    Assignee: Japan Display West Inc.
    Inventors: Toshiharu Matsushima, Aya Yoso
  • Patent number: 8730439
    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: August 3, 2011
    Date of Patent: May 20, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8698989
    Abstract: A viewing angle switchable liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a plurality of color sub-pixels and a plurality of viewing angle control (VAC) pixels. The liquid crystal layer includes liquid crystal molecules sandwiched between the first substrate and the second substrate. The liquid crystal molecules of each color sub-pixel include twisted nematic liquid crystal molecules. Each of the color sub-pixels includes a first pixel electrode disposed on an inner surface of the first substrate, and a second pixel electrode disposed on an inner surface of the second substrate. Each of the viewing angle control pixels includes a first electrode and a second electrode disposed on the inner surface of the first substrate, and a third electrode disposed on the inner surface of the second substrate.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: April 15, 2014
    Assignee: AU Optronics Corp.
    Inventors: Norio Sugiura, Chao-Wei Yeh, Chia-Hsuan Tai, Chien-Huang Liao, Wen-Hao Hsu
  • Publication number: 20130342798
    Abstract: There are provided a liquid crystal display panel and a liquid crystal display apparatus which have high display quality and in which thready defects generated in a display pixel are suppressed. In the liquid crystal display panel, at least one of a pair of substrates includes a photo-alignment film and an electrode, and a liquid crystal layer contains liquid crystal molecules whose elastic constant K1 concerning splay deformation and/or elastic constant K3 concerning bend deformation is 13 pN or more at 20° C.
    Type: Application
    Filed: March 2, 2012
    Publication date: December 26, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Isamu Miyake, Koichi Miyachi
  • Patent number: 8610856
    Abstract: According to one embodiment, a liquid crystal display device includes a first gate line, a second gate line, a common line, a first electrode, an insulation film, and a second electrode. The common line includes a first edge, which has a non-linear shape and is formed at a first distance from the first gate line, and a second edge, which is formed at a second distance, which is shorter than the first distance, from the second gate line. The first electrode is disposed between the first gate line and the second gate line and put in contact with the common line. The insulation film is disposed above the first electrode. The second electrode is disposed above the insulation film, opposed to the first electrode, extending immediately above the first edge of the common line, and having a slit formed therein.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 17, 2013
    Assignee: Japan Display Inc.
    Inventors: Kazuyuki Sunohara, Youichi Asakawa
  • Publication number: 20130314620
    Abstract: An illumination unit includes a light modulation layer including a first region and a second region that have optical anisotropy and different responsiveness to an electric field. The light modulation layer satisfies an expression A/B<A1/B1 when the light modulation layer exhibits the scattering characteristics.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 28, 2013
    Applicant: Sony Corporation
    Inventors: Akira Ebisui, Harumi Sato, Kentaro Okuyama, Shogo Shinkai
  • Patent number: 8576362
    Abstract: A liquid crystal display device suppresses generation of image sticking in AC mode. A liquid crystal display device comprises an alignment film arranged on at least one of a pair of substrates. The alignment film comprises a polymer containing a first constitutional unit and a second constitutional unit. The first constitutional unit controls alignment of the liquid crystal molecules by photoirradiation. The second constitutional unit controls alignment of the liquid crystal molecules regardless of photoirradiation.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinichi Terashita, Isamu Miyake, Koichi Miyachi, Yuko Teraoka
  • Patent number: 8531636
    Abstract: A liquid crystal display includes a first substrate having a first electrode on one surface side, a second substrate having second electrode on one surface side and placed opposite to the first substrate. A liquid crystal layer having a pretilt angle of 89.7° or more and less than 90° is disposed between the first and second electrodes. The first and second electrodes respectively form a pixel in opposing areas. The first electrode includes rectangularly shaped openings disposed with regularity in the pixel in a planar view. The openings include first and second openings with longitudinal directions respectively facing first and second directions, the second direction different from the first direction. The angle formed by the longitudinal directions of the first and second openings, and an alignment direction of liquid crystal molecules at the substantial center of the liquid crystal layer is 0° or more and less than 90°.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 10, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshihisa Iwamoto, Kunihiko Katano
  • Patent number: 8493533
    Abstract: Light leakage between pixel electrodes over a video signal line in a TN-type liquid crystal display device in which a dot inversion driving is applied with a three o'clock viewing angle is prevented. Pixel electrodes (PX) are formed on both sides of a video signal line (DL) of a first substrate (SUB1), and an end of the pixel electrode (PX) and the video signal line (DL) overlap each other. Over a second substrate (SUB2), a black matrix (BM) is formed in a portion corresponding to the video signal line (DL). By shifting the black matrix BM and the video signal line DL to the left with respect to a gap G between the pixel electrodes PX, it is possible to prevent light leakage caused by a disclination line (DS) which occurs by a horizontal electric field between pixel electrodes (PX).
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: July 23, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Koichi Igeta, Osamu Nagashima
  • Patent number: 8436970
    Abstract: Provided is a liquid crystal display including: a first substrate and a second substrate facing each other; a pixel electrode disposed on the first substrate; an opposing electrode disposed on the second substrate; a liquid crystal layer in vertical alignment mode interposed between the first substrate and the second substrate and including a plurality of liquid crystal molecules; and a tilt direction determining member determining tilt directions of the liquid crystal molecules when an electric field is generated in the liquid crystal layer, wherein the liquid crystal layer includes a first area and a second area in each of the first area and the second area, the liquid crystal molecules being aligned to have a pretilt without the electric field in the liquid crystal layer, and a pretilt angle of the liquid crystal molecules in the first area is larger a pretilt angle that of the liquid crystal molecules in the second area.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Goo Seok, Keun Chan Oh, Dong-Gi Seong, Min-Jae Kim, Min-Hee Kim
  • Patent number: 8432521
    Abstract: A liquid crystal display (LCD) includes: a first substrate; a second substrate facing the first substrate; a first electrode and a second electrode formed on the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, wherein a first alignment polymer configured to provide an alignment force to the liquid crystal is at a portion of the liquid crystal layer near the first substrate.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 30, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-Kyu Jang
  • Patent number: 8404318
    Abstract: The present invention comprises a device and method for ordering molecules of lyotropic chromonic liquid crystals to aligned structure of a dried film. An example of an aligned film may be transparent to visible light but not transparent to polarized light in the ultraviolet and/or infrared portions of the electromagnetic spectrum. A shearing device having a shearing tool and a repelling pad may repel the solvent and provide a shear force to shear the LCLC dissolved in the solvent as a film on the surface of a substrate. A method of making an aligned lyotropic chromonic liquid crystal-based film comprises providing a mixture of a lyotropic chromonic liquid crystal material in a solvent for the liquid crystal material, applying the mixture to a substrate, shearing the lyotropic chromonic liquid crystal with a shearing device and removing the solvent to produce an aligned lyotropic chromonic liquid crystal-based film.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: March 26, 2013
    Assignee: Kent State University
    Inventors: Andrii B. Golovin, Oleg Lavrentovich
  • Patent number: 8377519
    Abstract: The instant invention relates to liquid crystal media comprising one or more bimesogenic compounds, one or more chiral dopants and one or more additives, liquid crystal displays comprising these media, in particular displays exploiting the flexoelectric effect and to a method of improving the response time of such displays.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: February 19, 2013
    Assignee: Merck Patent GmbH
    Inventors: Louise Diane Farrand, Harry James Coles, Mikhail N. Pivnenko, Yong-il Cho
  • Patent number: 8355110
    Abstract: A method for manufacturing a liquid crystal display panel by providing a first substrate and providing a first alignment film, providing a second substrate and providing a second alignment film; interposing a liquid crystal compound and at least two reactive mesogens between the first and second substrates, where the two reactive mesogens are selected from Chemical Formulas 1 and 2; curing the reactive mesogens to form a first mesogen layer; and a second mesogen layer, wherein wherein in Chemical Formula 1 A and B are each independently selected from the group consisting of and wherein at least one hydrogen atom of a naphthalene group is independently replaced with at least one of F and Cl and wherein in Chemical Formula 2, D is selected from at least one of and a single bond, wherein E and G are each independently selected from at least one of and wherein at least one hydrogen atom of a phenyl group are independently replaced with at least one of F and Cl.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: January 15, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hee Kim, Dong-Gi Seong, Min-Goo Seok, Jae-Jin Lyu, Seung-Beom Park
  • Patent number: 8345196
    Abstract: A liquid crystal display with better visibility and transmittance. The liquid crystal display includes a first plate having a first field-generating electrode, disposed in a pixel area on an insulating substrate, comprising a plurality of sub-electrodes which are separated from each other by a predetermined distance and arranged parallel to each other, and a connecting electrode electrically connecting the sub-electrodes. An alignment film that is rubbed in a first direction covers a first field-generating electrode and an alignment film that is rubbed in a second direction covers a second field-generating electrode to achieve a predetermined orientation of the liquid crystals when no field is applied and more uniform rotation of the liquid crystal molecules when a field is applied.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: January 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang-hun Lee, Hee-seop Kim, Jun-woo Lee, JianGang Lu, Eun-hee Han
  • Publication number: 20120293752
    Abstract: A liquid crystal display device includes a first substrate having a pair of first signal lines and a pair of second signal lines extending in a first and orthogonal second directions, and a pixel electrode arranged between the pair of second signal lines and extending in the second direction, and a second substrate having a first main common electrode and a second main common electrode respectively facing the pair of second signal lines and extending in the second direction. An effective domain is surrounded by the pairs of first and second signal lines, or by the pair of the first signal lines and the first and the second main common electrodes. A first area formed of an electrode portion including the pixel electrode is smaller than a second area formed of an aperture portion other than the first area in the effective domain.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: Japan Display Central Inc.
    Inventors: Arihiro TAKEDA, Jin HIROSAWA, Hitomi HASEGAWA, Yusuke MORITA, Hirokazu MORIMOTO
  • Patent number: 8310636
    Abstract: The present invention provides a liquid crystal display device capable of suppressing generation of the image sticking in AC mode and a polymer for alignment film materials.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: November 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinichi Terashita, Isamu Miyake, Koichi Miyachi, Yuko Teraoka
  • Patent number: 8263732
    Abstract: [Object] To obtain an alignment film having excellent alignment stability of a liquid crystal and a high voltage holding ratio by application of linearly polarized light to a polyamic acid having a specific structure and then imidization under heat. [Solving Means] A photo-alignment film is obtained by: applying a polyamic acid solution on a substrate, where the polyamic acid contains, in its main chain, at least a group having unsaturated groups having 1 to 3 carbon-carbon double bonds or 1 to 4 triple bonds; vaporizing a solvent from a film formed; applying linearly polarized light to the film after the vaporization of the solvent; and then heating the film to imidize the polyamic acid.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: September 11, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventor: Norio Tamura
  • Patent number: 8259273
    Abstract: A liquid crystal includes about 60 wt % to about 80 wt % of a first compound material, about 2 wt % to about 15 wt % of a second compound material, and a neutral compound material. The first compound material has a dielectric anisotropy of a first polarity, and the second compound material has a dielectric anisotropy of a second polarity.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yong-Kuk Yun
  • Patent number: 8253884
    Abstract: A liquid crystal display device includes an illuminator and a liquid crystal panel for performing displaying by using light which is emitted from the illuminator. The liquid crystal panel includes a pair of substrates, a liquid crystal layer provided between the pair of substrates, and a pair of alignment films provided on sides of the pair of substrates facing the liquid crystal layer. At least one of the alignment films is a photo-alignment film which is imparted with an orientation regulating force through a photo-alignment treatment, and the illuminator includes a light source causing primary generation of at least blue light, among other light which is used for displaying.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: August 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koichi Miyachi
  • Patent number: 8253901
    Abstract: A display device includes a light supplying unit generating light and a liquid crystal panel having a liquid crystal layer including liquid crystal molecules aligned substantially parallel to the plane of a pair of substrates by anti-parallel rubbing when no voltage is applied to the panel. Bias voltage corresponding to maximum gray level of the panel is determined between threshold voltage of the liquid crystal layer and 40% of maximum voltage.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Seung-Hoo Yoo, Hoon Kim, Hyun-Cheol Moon, Hye-Ran You
  • Patent number: 8203680
    Abstract: A liquid crystal display includes a first alignment film having a first alignment direction, a second alignment film having a second alignment direction, and a liquid crystal layer having liquid crystal molecules between the first and second alignment films. The liquid crystal layer is doped with a chiral material that tends to induce a first twist in directors of the liquid crystal molecules when an electric field is applied to the liquid crystal layer. The first and second alignment films have orientations that tends to induce a second twist in the directors when an electric field is applied to the liquid crystal layer, in which the direction of the first twist is different from the direction of the second twist.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: June 19, 2012
    Assignee: Chimei Innolux Corporation
    Inventors: Ju-Hyun Lee, Shin-Tson Wu, Wang-Yang Li, Chung-Kuang Wei
  • Patent number: 8199299
    Abstract: A liquid crystal panel (10) includes a liquid crystal layer formed with a p-type liquid crystal. The liquid crystal layer exhibits homogeneous orientation while no voltage is applied. Further, an electric field is applied to the liquid crystal layer in a direction same as dipole moments (?) of liquid crystal molecules (3a) to which no voltage is applied. With these arrangements, it is possible to provide a liquid crystal panel and a liquid crystal display device, each of which adopts a new display mode that can achieve a wide viewing angle equivalent to an IPS mode, can achieve a high-speed response like an OCB mode or exceeding the OCB mode, and does not require an initial operation for orientation conversion to the bend orientation.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: June 12, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoichi Ishihara, Takehisa Sakurai, Shuichi Kozaki
  • Publication number: 20120099065
    Abstract: A liquid crystal display (LCD) includes: a first substrate; a second substrate facing the first substrate; a first electrode and a second electrode formed on the first substrate; and a liquid crystal layer interposed between the first substrate and the second substrate, wherein a first alignment polymer configured to provide an alignment force to the liquid crystal is at a portion of the liquid crystal layer near the first substrate.
    Type: Application
    Filed: March 23, 2011
    Publication date: April 26, 2012
    Inventor: Yong-Kyu Jang
  • Publication number: 20120075561
    Abstract: A liquid crystal display includes a first substrate having a first electrode on one surface side, a second substrate having second electrode on one surface side and placed opposite to the first substrate. A liquid crystal layer having a pretilt angle of 89.7° or more and less than 90° is disposed between the first and second electrodes. The first and second electrodes respectively form a pixel in opposing areas. The first electrode includes rectangularly shaped openings disposed with regularity in the pixel in a planar view. The openings include first and second openings with longitudinal directions respectively facing first and second directions, the second direction different from the first direction. The angle formed by the longitudinal directions of the first and second openings, and an alignment direction of liquid crystal molecules at the substantial center of the liquid crystal layer is 0° or more and less than 90°.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicant: Stanley Electric Co., Ltd.
    Inventors: Yoshihisa IWAMOTO, Kunihiko Katano
  • Patent number: 8130186
    Abstract: A device is described that comprises a layer of material (254) disposed between first and second cell walls (250,252) and is capable of adopting, and being electrically latched between, at least two stable configurations. The layer of material (254) comprises one or more separate electrically addressable regions (270, 272, 274, 276) and addressing means are provided to write to each of said electrically addressable regions using voltage pulses to selectively latch said layer of material as required. The addressing means is arranged to write to each of said one or more separate electrically addressable region using at least first and second latching scans.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: March 6, 2012
    Assignee: ZBD Displays Limited
    Inventor: John C Jones