Matrix Electrodes Patents (Class 349/143)
  • Publication number: 20120327354
    Abstract: A liquid crystal display device (100) according to the present invention includes an active matrix substrate (120); a counter substrate (140); and a liquid crystal layer (160). Each of pixels (P) includes sub pixels (Spa, Spb) respectively having liquid crystal capacitances (CLa, CLb) and storage capacitances (CCa, CCb). A gate bus line (Lg) includes gate lines (Lga, Lgb) electrically connected to gates of thin film transistors (130a, 130b) and a connection line (Lgc) for electrically connecting the gate line (Lga) and the gate line (Lgb) to each other. A sub pixel electrode (124a) strides over the gate line (Lga), and a sub pixel electrode (124b) strides over the gate line (Lgb). Owing to this, change of a parasitic capacitance caused by an alignment shift between the sub pixel electrode and the gate bus line is suppressed.
    Type: Application
    Filed: March 2, 2011
    Publication date: December 27, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Keisuke Yoshida
  • Publication number: 20120327353
    Abstract: According to one embodiment, a liquid crystal display includes a display region including a plurality of display pixels arrayed in a matrix, an array substrate including a plurality of first electrodes which are arrayed in a matrix, a plurality of first sensors which extend in a column direction on the first electrodes, and a plurality of second sensors which extend in a row direction substantially perpendicular to the column direction and are electrically connected to the first sensors, a countersubstrate which is arranged to face the array substrate, and a liquid crystal layer which is interposed between the array substrate and the countersubstrate. The first sensors include omitted portions which connect adjacent regions surrounded by the first sensors and the second sensors.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 27, 2012
    Inventors: Takashi DOI, Toshihiro NINOMIYA, Kazuya KIUCHI
  • Patent number: 8339531
    Abstract: A display device in which a pixel voltage is held at low power consumption without any influence from fluctuation in threshold voltage is provided. A liquid crystal capacitor element (Clc) is formed between a pixel electrode (20) and a counter electrode (80). A counter voltage (Vcom) is applied to the counter electrode (80). The pixel electrode (20), one ends of a first switch circuit (22) and a second switch circuit (23), and a first terminal of a second transistor (T2) form an internal node (N1). The other end of the first switch circuit (22) is connected to a source line (SL). The second switch circuit (23) has the other end connected to a voltage supply line (VSL) and is a series circuit of transistors (T1 and T2). A control terminal of the transistor (T1), a second terminal of the transistor (T2), and one end of the boost capacitor element (Cbst) form an output node (N2).
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: December 25, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshimitsu Yamauchi
  • Patent number: 8339558
    Abstract: In a horizontal electric field drive type liquid crystal electro-optic device, a gate electrode, a source electrode, a drain electrode, a semiconductor film and a common electrode are formed on a glass substrate and a liquid crystal material is driven by controlling the strength of an electric field substantially parallel to the glass substrate. The electrodes and the semiconductor film are made curved, for example semi-circular or semi-elliptical, in sectional profile. These curved sectional profiles can be formed by suitably selecting and combining various patterning and etching methods.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: December 25, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeshi Nishi, Rumo Satake
  • Patent number: 8339560
    Abstract: A method for manufacturing a display device includes the step of forming a preset basic pattern in a plurality of places on an insulation substrate by exposing and developing a photosensitive material film which is formed on the insulation substrate, wherein the exposure is performed using a direct writing exposure device. The exposure is performed using the direct writing exposure device in which the light quantity distribution of the pattern of light formed by the spatial optical modulating element is corrected such that a fluctuation quantity of a size of the basic pattern formed in the plurality of places becomes not more than 0.2 ?m.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 25, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Toshio Tojo, Nobuyasu Hayashi
  • Patent number: 8339551
    Abstract: An improved two layer electrode structure is fabricated on a surface. According to one aspect of the invention, the first layer of the electrode structure is designed to provide electrical contact to a fluid electronic material and the second layer of the electrode structure is formed so as to constrain the fluid electronic material in a precise pattern. Alternatively, the second layer of the two-layer electrode structure includes a low surface energy material to further assist in constraining the fluid electronic material to the desired pattern. In another alternative, the first layer of the electrode structure includes a transparent electrode material, that is coupled to an electro-optical device. The second layer of this electrode structure includes a high conductivity material that is coupled to the first layer of the electrode structure in an area not directly over the electro-optical device to improve the conductivity of the transparent electrode structure.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: December 25, 2012
    Assignee: Transpacific Infinity, LLC
    Inventor: Dennis Lee Matthies
  • Patent number: 8334957
    Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: December 18, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takahiro Ochiai, Tohru Sasaki, Hirotaka Imayama, Masateru Morimoto
  • Publication number: 20120314173
    Abstract: The present invention provides a structure of pixel electrode, which includes a strip-like horizontal main trunk and a strip-like vertical main trunk, the horizontal main trunk and the vertical main trunk centrally and perpendicularly intersecting each other; a plurality of strip-like branches arranged in each of four domains that are formed by being equally divided by the central perpendicular intersection of the horizontal main trunk and the vertical main trunk, the plurality of strip-like branches extending outward from a central point of the perpendicular intersection of the vertical main trunk and the horizontal main trunk, the plurality of strip-like branches being spaced by a plurality of slits; and two centrally symmetric polygonal or sector openings provided in a central zone at the central perpendicular intersection of the horizontal main trunk and the vertical main trunk.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 13, 2012
    Applicants: shanghai Tianma Micro-Electronics Co., LTD, Shenzhen China Star Optoelectranics Technology Co. LTD.
    Inventor: Xin Zhang
  • Patent number: 8330913
    Abstract: A first substrate (20) is subjected to an alignment treatment for controlling an alignment direction of liquid crystal molecules of a liquid crystal layer, an alignment control region (R60) is provided in at least a part of a Y-direction interelectrode region (R52) between respective adjacent pixel electrodes (60), and an extension direction (D10) of the alignment control region (R60) is at an angle of not less than ?15° and not more than +15° with a direction in which the alignment treatment is carried out (D20).
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: December 11, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Katayama, Masahiro Shimizu
  • Patent number: 8330888
    Abstract: A display substrate includes a gate line, a data line crossing the gate line, a transistor connected to the gate line and the data line, a first pixel electrode connected to a first output electrode of the transistor and a second pixel electrode connected to a second output electrode of the transistor. The first pixel electrode includes cutting grooves which define a first domain on the first pixel electrode off-axis image quality.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-Hyun Kim
  • Patent number: 8330892
    Abstract: Electrical conductor patterns (20) are provided so as to face respective source lines (SL). In each of the electrical conductor patterns (20), a plurality of electrical conductor islands (21) line up. With a source line (SL) being broken at points P1 and P2, an electrical conductor island (21-j) is connected via point Q1a and Q1b, and an electrical conductor island (21j) is connected via points Q2a and Q2b, by carrying out laser welding. This realizes a display panel including spare lines for respective data signal lines, in which display panel it is possible to increase a probability that a supply failure of a data signal can be avoided, even in a case where a data signal line is broken.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: December 11, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinichi Hirato
  • Patent number: 8330923
    Abstract: A multi-domain liquid crystal display (LCD) includes multiple effective pixel electrodes, dummy pixel electrodes and auxiliary electrodes. The effective pixel electrodes are regularly arranged in an array of row and column, and the array of effective pixel electrodes constitute an active display area of the multi-domain LCD. The dummy pixel electrodes are provided outside the active display area and arranged at least on the side of an outermost row or outermost column of the array of effective pixel electrodes. Each auxiliary electrode is positioned next to one side of an effective pixel electrode or a dummy pixel electrode to produce fringe fields and is connected to another effective pixel electrode controlled by a preceding or a succeeding signal line to allow all effective pixel electrodes to have substantially the same coupling capacitance.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: December 11, 2012
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, I-Fang Wang, Ming-Chang Yu, Ying-Cheng Tsai
  • Patent number: 8330917
    Abstract: A thin film transistor (TFT) substrate that may not have display quality degradation due to an image sticking phenomenon and a liquid crystal display having the same are disclosed for embodiments. The TFT substrate, according to one embodiment of the present invention, includes an insulating substrate, a plurality of gate lines and a plurality of data lines arranged in a matrix defined by the crossing of the gate lines and the data lines on the insulating substrate, a plurality of thin film transistors each electrically connected to the gate lines and of the data lines at crossing points of the gate lines and the data lines, a plurality of pixel electrodes each connected to the thin film transistors and partially overlapping a previous gate line, and a blocking electrode formed between each pixel electrode and its adjacent pixel electrode in parallel with the gate lines.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hee Park, Sun-Hyung Choi, Jeong-Geun Yoo
  • Patent number: 8325306
    Abstract: A liquid crystal display device including first and second substrate, with liquid crystal contained therebetween; a plurality of gate bus lines; a plurality of drain bus lines; and first and second sub picture element electrodes. The first sub picture element electrode is not in contact with the second sub picture element electrode. The first sub picture element electrode includes a first body portion and a plurality of first branches extending from the first body portion, with the first branches being separated from each other by a plurality of first slits. The second sub picture element electrode includes a second body portion and a plurality of second branches extending from the second body portion, with the second branches being separated from each other by a plurality of second slits.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: December 4, 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: 8319926
    Abstract: In the liquid crystal display device of the present invention, each pixel region includes first, second and third subpixel electrodes 111a, 111b1 and 111b2, a vertical alignment liquid crystal layer, a counter electrode 121, and an alignment film. The second and third subpixel electrodes are arranged to interpose the first subpixel electrode. Each pixel region is comprised of first, second and third regions associated with the first, second and third subpixel electrodes, respectively. Each pixel region includes eight liquid crystal domains in total, consisting of two sets of four liquid crystal domains A, B, C and D of first, second, third and fourth types, in which an angle formed between any two tilt directions is approximately equal to an integral multiple of 90 degrees.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: November 27, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akihiro Shoraku, Toshihide Tsubata
  • Patent number: 8319906
    Abstract: A scanning signal line (16) includes an opening (29) leading from the outside of a pixel region through below a data signal line (15) into the pixel region, and first and second scanning electrode portions (16a/16b) or two side portions of the opening confronting in a column direction through that opening. The end portion of the first scanning electrode portion (16a) in the pixel region is a first end portion (EP1), and the end portion of the second scanning electrode portion (16b) in the pixel region is a second end portion (EP2). A first transistor has a source electrode (9a) and a drain electrode (8a) individually overlapping the first electrode portion (16a) but not the first end portion (EP1) in the pixel region. A second transistor has a source electrode (9b) and a drain electrode (8b) individually overlapping the second electrode portion (16b) but not the second end portion EP2) in the pixel region.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: November 27, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Enda, Ikumi Itsumi, Toshihide Tsubata, Masanori Takeuchi
  • Publication number: 20120293741
    Abstract: A liquid crystal display (LCD) panel, and a manufacturing method and a driving method thereof are disclosed. The LCD panel comprises: a first pixel matrix comprising a plurality of first pixel units; a second pixel matrix comprising a plurality of second pixel units; and a driving unit, being connected to the first pixel matrix and the second pixel matrix to drive the first pixel matrix and the second pixel matrix respectively, wherein the first pixel matrix and the second pixel matrix are arranged in parallel, and at least a pair of the first pixel units and the second pixel units are partially overlapped with each other to form an overlapped pixel region. In this way, the present invention can provide a high resolution and improve the product yield with the process conditions remaining unchanged.
    Type: Application
    Filed: June 10, 2011
    Publication date: November 22, 2012
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Haobo Gu
  • 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: 8314915
    Abstract: A liquid crystal display panel includes a pair of substrates having a liquid crystal layer interposed therebetween. One of the substrates includes a plurality of scanning lines and signal lines which are arrayed on a display region so as to form a matrix shape, a common wiring formed on a peripheral area surrounding the display region, an interlayer film, pixel electrodes, an inter-electrode insulating film, and a common electrode that is electrically connected to the common wiring. On the surface of the common electrode, or between the common electrode and the inter-electrode insulating film, a conductive layer, which is composed of a material of a conductivity superior to a conductivity of the transparent conductive material composing the common electrode, is formed at locations overlapped with locations at which the plurality of scanning lines and the signal lines are formed.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: November 20, 2012
    Assignee: Sony Corporation
    Inventor: Akio Ota
  • Patent number: 8310645
    Abstract: A wiring board of the present invention has pads disposed in a plurality of rows including: first row pads each being connected to a respective one of the connection wires that is long in length; and second row pads (30b) each being connected to a respective one of the connection wires that is shorter in length than that of first connection wires (10a) connected to the first row pads, each of the first connection wires (10a) being provided not in a region between adjacent ones of the second row pads (30b) but in a lower layer region of the second row pads (30b), in such a manner that at least a first insulating layer (20a) is sandwiched between the second row pads (30b) and the first connection wires (10a), and 0.8?W1/W2?1, where W1 is a line width of the first connection wires (10a) in the lower layer region of the second row pads (30b), and W2 is a width of the second row pads (30b).
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: November 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Matsui, Motoji Shiota
  • Patent number: 8304039
    Abstract: A liquid crystal display is provided that includes a first substrate; a second substrate facing the first substrate; a field generating electrode disposed on at least one of the first substrate and the second substrate; an alignment layer disposed on the field generating electrode; and a liquid crystal layer interposed between the first substrate and the second substrate and including a liquid crystal and an alignment polymer. The alignment layer initially contains an alignment material including an initiator, and the alignment polymer initially contains an alignment aid.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho-Kil Oh, Su-Jeong Kim, Su-Han Woo, Jae-Jin Lyu, Min-Hee Kim
  • Patent number: 8305526
    Abstract: The invention relates to a method of manufacturing a liquid crystal display, comprising forming a color filter array substrate including at least a red (R) color filter and a green (G) color filter; disposing a thin film transistor array substrate oppositely to the color filter array substrate; sealing a liquid crystal layer between the color filter array substrate and the thin film transistor array substrate; and disposing a backlight unit to a surface of the thin film transistor array substrate, said backlight unit providing white light having an adjusted blue spectrum using at least a light emitting diode (LED) unit.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: November 6, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Hyun Jin So
  • Patent number: 8305537
    Abstract: A pixel array including first signal lines, second signal lines, switch devices, and pixel units coupling to the first signal lines and the second signal lines through the switch devices is provided. The first signal lines and the second signal lines are formed on different films. Each of the pixel units includes a common electrode line. In each of the pixel units of an ith row, the common electrode line has at least one first line segment and at least one second segment coupled to each other and formed on different films, and a distance between an (i?1)th first signal line and the first line segment is not equal to that between the (i?1)th first signal line and the second line segment. The first signal lines are either scan lines or data lines of the pixel array, and the second signal lines are the other kind.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: November 6, 2012
    Assignee: Chunghwa Pictue Tubes, Ltd.
    Inventor: Hsi-Ming Chang
  • Publication number: 20120268680
    Abstract: A display panel includes: a liquid crystal element; and a transistor including a gate electrode, a source electrode, and a drain electrode. The liquid crystal element and the transistor are provided for each sub-pixel, and the drain electrode serves as a pixel electrode that drives the liquid crystal element.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 25, 2012
    Applicant: SONY CORPORATION
    Inventors: Hiroki Sugiyama, Toshiharu Matsushima
  • Publication number: 20120268707
    Abstract: In the liquid crystal display device (100) of the present invention, each picture element (P) includes first, second, third and fourth pixels (R, G, B, Y) that represent mutually different colors. The first and second pixels (R, B) are arranged alternately in each odd-numbered column of pixels. The third and fourth pixels (G, Y) are arranged alternately in each even-numbered column of pixels. The first and second pixels (R, B) belong to odd- and even-numbered rows, respectively, in a (4n+1)th column of pixels (PC4n+1), the third and fourth pixels (G, Y) belong to odd- and even-numbered rows, respectively, in a (4n+2)th column of pixels (PC4n+2) the second and first pixels (B, R) belong to odd- and even-numbered rows, respectively, in a (4n+3)th column of pixels (PC4n+3), and the fourth and third pixels (Y, G) belong to odd- and even-numbered rows, respectively, in a (4n+4)th column of pixels (PC4n+4).
    Type: Application
    Filed: December 21, 2010
    Publication date: October 25, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yuki Yamashita, Akihiro Shohraku
  • Publication number: 20120268705
    Abstract: In one embodiment, a first substrate is provided with first and second main pixel electrodes electrically connected each other extending along a first direction, respectively. A second substrate includes first to third main common electrodes electrically connected each other extending along the first direction, respectively. The first main pixel electrode is arranged between the first and second main common electrodes, and the second main pixel electrode is arranged between the second and third main common electrodes. Four inter-electrode distances are formed. One of the four inter-electrode distances is set to an optimal inter-electrode distance, and one of the four inter-electrode distances is different from at least one of the other three inter-electrode distances. Herein, the optimal inter-electrode distance is defined as follows: in a range of voltage which is applied between the electrodes, more than 90% of a peak transmissivity is obtained by the optimal inter-electrode distance.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 25, 2012
    Applicant: Japan Display Central Inc.
    Inventors: Hitomi Hasegawa, Jin Hirosawa, Arihiro Takeda, Nobuko Fukuoka, Yusuke Morita
  • Publication number: 20120268704
    Abstract: A display device includes: a display section including display pixels; and a liquid crystal barrier section including barrier regions. Each of the barrier regions extends in a first direction that is inclined with respect to an array direction of the display pixels, and allows light to transmit therethrough and blocks the light. The liquid crystal barrier section includes a liquid crystal layer, and a first electrode layer and a second electrode layer interposing the liquid crystal layer in between. The first electrode layer includes a plurality of line-shaped electrodes. The line-shaped electrodes extend in the first direction and arranged side-by-side in a second direction different from the first direction, and one or more of the line-shaped electrodes includes first slits and second slits extending in respective directions different from the array direction of the display pixels.
    Type: Application
    Filed: April 12, 2012
    Publication date: October 25, 2012
    Applicant: SONY CORPORATION
    Inventors: Yuichi Inoue, Sho Sakamoto
  • Publication number: 20120268706
    Abstract: The invention relates to compounds of the formula I, and to a liquid-crystalline medium, preferably having a nematic phase and negative dielectric anisotropy, which comprises one or more compounds of formula I, defined herein, for use in an electro-optical display, particularly in an active-matrix display based on the VA, ECB, PALO, FFS or IPS effect, and to the use of the compounds of the formula I for the stabilization of a liquid-crystalline medium which comprises one or more compounds of the formula II and one or more compounds of the formulae III-1 to III-4, defined herein.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Mark GOEBEL, Rocco FORTTE, Detlef PAULUTH
  • Patent number: 8294856
    Abstract: A display substrate includes a base substrate, a gate line, a first insulation layer, a semiconductor layer, a data line, a switching element, a light-blocking member, a reflective electrode, a second insulation layer and a transmissive electrode. The switching element is defined by a gate electrode, a source electrode and a drain electrode spaced apart from a source electrode. The light-blocking member includes a first light-blocking part disposed in correspondence with an area where the gate line and the data line are disposed, and a second light-blocking part is disposed in a reflective area to include an embossing pattern. The reflective electrode is disposed on the second light-blocking part. The second insulation layer is disposed in a pixel area of the reflective electrode. The transmissive electrode is disposed on the second insulation layer in correspondence with a transmissive area of the pixel area.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon-Ah Cho, Hee-Wook Do
  • Patent number: 8294864
    Abstract: To solve lowering of transmittance due to a pixel end domain, provided is a liquid crystal display device, including: a liquid crystal layer; and a substrate including pixel electrodes and, a common electrode disposed between the pixel electrodes and the liquid crystal layer and having a slit which stretches over adjacent pixel electrodes, in which: the slit has a first stretching direction at a center of one pixel electrode, and a second stretching direction in a gap between two adjacent pixel electrodes, different from the first stretching direction; in the slit, a portion where the first stretching direction is switched to the second stretching direction is located on one pixel electrode; and, with respect to an alignment direction, a first azimuth toward the first stretching direction and a second azimuth toward the second stretching direction have the same rotation direction, and the second azimuth is larger than the first azimuth.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: October 23, 2012
    Assignee: Hitachi Displays, Ltd.
    Inventor: Osamu Itou
  • Patent number: 8289487
    Abstract: An MVA-type LCD capable of displaying with a high contrast ratio is provided. An LCD according to the present invention is an MVA-type LCD including a stripe-shaped rib 21b provided on a first electrode 11 of a liquid crystal layer and a stripe-shaped slit 22 formed in a second electrode 12 of the liquid crystal layer. The rib 21b has a side face whose taper angle in a cross section which is orthogonal to an azimuth direction that the rib 21 extends is 18° or less, and is made of a material such that a film of the material with a thickness corresponding to the height of the rib has an OD value of 0.8 or more.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: October 16, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yusuke Nishihara, Akihiro Yamamoto, Masumi Kubo, Kenji Okamoto
  • Patent number: 8289489
    Abstract: Provided are a fringe-field-switching (FFS)-mode liquid crystal display (LCD) and a method of manufacturing the same. The FFS-mode LCD includes a transparent common electrode, a conductive reflection structure electrically connected to the transparent common electrode, and a transparent pixel electrode formed on the conductive reflection structure and including a plurality of slits. The transparent common electrode is formed on a region including a data line and a gate line so that respective unit pixel regions can be electrically connected to one another.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: October 16, 2012
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Moo Shik Im, Dong Hae Seo, Dae Lim Choi, Jong Kyun Park, Soo Young Choi
  • Patent number: 8289490
    Abstract: A liquid crystal display device includes first and second substrates facing each other, a layer of liquid crystal molecules interposed between the first and second substrates, a plurality of color displaying sub-pixels including first, second and third sub-pixels defined on the first and second substrates, first common electrodes in the first, second and third sub-pixels on the first substrate, first pixel electrodes in the first, second and third sub-pixels on the first substrate and alternately arranged with the first common electrodes, color filter layers in the first, second and third sub-pixels on the second substrate, a plurality of viewing angle restricting sub-pixels including fourth, fifth and sixth sub-pixels defined on the first and second substrates, the fourth, fifth and sixth sub-pixels corresponding one-to-one with the first, second and third sub-pixels, second pixel electrodes in the fourth, fifth and sixth sub-pixels on the first substrate, and second common electrodes in the fourth, fifth an
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: October 16, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung-Seok Jang, Joon-Kyu Park, Hyun-Suk Jin
  • Publication number: 20120257156
    Abstract: A liquid crystal display device includes a first substrate provided with first and second electrodes, and a second substrate disposed to be opposite to the first substrate via a liquid crystal layer. Regions of pixels each having the first and second electrodes are arranged in a matrix, and the liquid crystal layer is driven by an electric field in an in-plane direction of the first substrate, applied between the first and second electrodes. A step difference is formed at an opposite side of the first substrate for each of the pixel regions. The first or second electrode includes a wall-shaped electrode formed at a side wall surface of the step difference and a planar electrode formed from an edge of the wall-shaped electrode along the main surface of the first substrate. The wall-shaped electrode and the planar electrode are electrically connected to each other.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 11, 2012
    Inventors: Takato HIRATSUKA, Osamu Itou, Shinichiro Oka, Shinichi Komura
  • Publication number: 20120257155
    Abstract: In a liquid crystal display according to an exemplary embodiment of the present invention, a shielding electrode applied with the same voltage as a common voltage and overlapping a data line is not formed. Instead, an opening is formed at a position corresponding to a data line disposed proximate to a sub-pixel charged with a relatively low voltage. In this manner, luminance deterioration of a liquid crystal display may be reduced or prevented, and a short defect between the shielding electrode and the data line may also be prevented.
    Type: Application
    Filed: August 31, 2011
    Publication date: October 11, 2012
    Inventors: Seong Young Lee, Jae-Ho Choi
  • Patent number: 8284365
    Abstract: A liquid crystal display device includes first and second substrates facing and spaced apart from each other, each of the first and second substrates having a first sub-pixel region, a second sub-pixel region, a third sub-pixel region, a fourth sub-pixel region and a fifth sub-pixel region for adjusting a viewing angle, the first, second, third and fourth sub-pixel regions surrounding the fifth sub-pixel region; a liquid crystal layer between the first and second substrates; a plurality of first pixel electrodes in each of the first, second, third and fourth sub-pixel regions on the first substrate; a plurality of first common electrodes in each of the first, second, third and fourth sub-pixel regions on the first substrate, the plurality of first common electrodes alternating with the plurality of first pixel electrodes; a second pixel electrode in the fifth sub-pixel region on the first substrate; and a second common electrode in the fifth sub-pixel region on the second substrate, the second common electrod
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: October 9, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Joon-Kyu Park, Hyun-Suk Jin, Hyung-Seok Jang
  • Patent number: 8284373
    Abstract: A liquid crystal display (LCD) device includes a first substrate having a plurality of column spacers fixed thereto, a second substrate facing the first substrate, and having a plurality of projections at portions corresponding to the column spacers, the projections contacting the column spacers, and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 9, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Chang Ho Oh, Jeom Jae Kim, Hong Man Moon, Sung Hak Jo, Mon Soo Kang
  • Publication number: 20120249496
    Abstract: A pixel array of a fringe field switching (FFS) liquid crystal display panel includes a plurality of gate lines, a plurality of data line, a plurality of pixel electrodes, a plurality of common lines, and a plurality of pixel units aligned in an array configuration. The gate lines are disposed parallel to each other along a first direction. The data lines are disposed parallel to each other along a second direction. Each of the pixel units includes at least one sub-pixel region. The common lines are disposed along the first direction and electrically isolated from each other. Each of the common lines includes a plurality of common electrodes extending along the second direction. The two adjacent common electrodes of each common line are respectively disposed in the two adjacent pixel units which are located in different rows.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 4, 2012
    Inventor: Cheng-Chiu Pai
  • Publication number: 20120249941
    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: March 21, 2012
    Publication date: October 4, 2012
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Koji YAMAMOTO, Jin Hirosawa
  • Patent number: 8274473
    Abstract: An electro-optic display includes a first substrate provided thereon with a first electrode, a second substrate provided thereon with a second electrode forming an electric field in cooperation with the first electrode, and an electro-optic material interposed between the first and second substrates. The electro-optic material includes a non-polar solvent and a polar solvent dispersed in the non-polar solvent and controlled by the electric field. The first electrode is disposed on a non-display region of the first substrate including a plurality of pixels each of which having a display region, in which an image is displayed, and the non-display region adjacent to the display region. At least one of a reflective layer and a light sourcing layer defines an amount of light passed through the display area.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seon-Tae Yoon, Jae-Byung Park, Hae-Il Park, Sung-Jin Hong, Yu-Kwan Kim, Seul Lee
  • Publication number: 20120236242
    Abstract: A multi-domain liquid crystal display is disclosed. The display includes embedded fringe field amplifiers behind the color dots of the display. Specifically, the embedded fringe field amplifiers have a polarity that is different from the polarity of the color dot, that is located in front of the embedded fringe field amplifier. This difference in polarity enhances the fringe fields of the color dot or in some situations may create additional fringe fields. The enhanced fringe fields or additional fringe fiends enhances the performance of the display.
    Type: Application
    Filed: December 30, 2011
    Publication date: September 20, 2012
    Inventors: Hiap L. Ong, Juishu Chou
  • Publication number: 20120236241
    Abstract: A multi-domain liquid crystal display is disclosed. The display includes embedded fringe field amplifiers behind the color dots of the display. Specifically, the embedded fringe field amplifiers have a polarity that is different from the polarity of the color dot, that is located in front of the embedded fringe field amplifier. This difference in polarity enhances the fringe fields of the color dot or in some situations may create additional fringe fields. The enhanced fringe fields or additional fringe fiends enhances the performance of the display.
    Type: Application
    Filed: December 30, 2011
    Publication date: September 20, 2012
    Inventors: Hiap L. Ong, Juishu Chou
  • Publication number: 20120236244
    Abstract: The present invention provides a panel capable of driving a liquid crystal in stable manner and improving response speed of the liquid crystal of a liquid crystal display, and the panel according to the present invention may include: a substrate; a first pixel electrode and a second pixel electrode disposed facing each other on the substrate; and a branch electrode extending from at least one of the first pixel electrode and the second pixel electrode.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 20, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-Ho HONG, Hyeok-Jin LEE, Soon-Joon RHO, Yong-Woon LIM, Suk CHOI, Oh-Jeong KWON, Kyung-Hye PARK, Su-Jin KIM
  • Publication number: 20120236243
    Abstract: A multi-domain liquid crystal display is disclosed. The display includes embedded fringe field amplifiers behind the color dots of the display. Specifically, the embedded fringe field amplifiers have a polarity that is different from the polarity of the color dot, that is located in front of the embedded fringe field amplifier. This difference in polarity enhances the fringe fields of the color dot or in some situations may create additional fringe fields. The enhanced fringe fields or additional fringe fiends enhances the performance of the display.
    Type: Application
    Filed: December 30, 2011
    Publication date: September 20, 2012
    Inventors: Hiap L. Ong, Juishu Chou
  • Patent number: 8264656
    Abstract: A liquid crystal display (LCD) includes a first substrate including a display area displaying images and a peripheral area surrounding the display area, a common pad formed in the peripheral area of the first substrate, an insulating layer formed on the common pad and having a common contact hole exposing the common pad, an assistance common pad formed on the insulating layer of the peripheral area and contacting the common pad through the common contact hole, a second substrate corresponding to the first substrate, and a common electrode formed on the second substrate, and a conductive sealant disposed between the assistance common pad and the common electrode of the peripheral area, the conductive sealant electrically connecting the assistance common pad and the common electrode, wherein the common contact hole is disposed between the conductive sealant and the display area.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: September 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Kueon Lee, Kweon-Sam Hong, Hyun Park, Seung-Hwan Kim
  • Publication number: 20120224130
    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: Application
    Filed: May 14, 2012
    Publication date: September 6, 2012
    Inventors: Jae-Hyun KIM, Gee-Bum KIM, Ae SHIN
  • 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: 8259244
    Abstract: A display substrate in accordance with one or more embodiments includes a first line pattern, a first insulation layer, a second line pattern, a color filter layer and a pixel electrode, which are formed on a substrate. The first line pattern includes a gate line and a light-blocking layer. The light-blocking layer has a first opening portion formed in a storage capacitor region. The first insulation layer is formed on the substrate having the first line pattern. The second line pattern is formed on the first insulation layer. The color filter layer is formed on the substrate having the second line pattern, and has a second opening portion overlapping with the storage electrode. The pixel electrode is formed on the substrate having the color filter layer. Thus, short circuits between the storage electrode and the pixel electrode may be prevented.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: In-Woo Kim
  • Patent number: 8253909
    Abstract: An electro-optical device substrate includes a substrate, a plurality of data lines and a plurality of scanning lines crossing each other on the substrate, and a plurality of pixels defined by the plurality of data lines and the plurality of scanning lines so as to correspond to intersections thereof. Each pixel includes a pixel electrode, a conducting layer formed in a non-opening region separating an opening region of the pixel from that of another pixel, the conducting layer having a protruding portion protruding into the opening region from a part of one of a plurality of region edges defining the opening region, and a first contact portion electrically connecting the pixel electrode and the protruding portion.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: August 28, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Ishii, Masahiro Yasukawa, Minoru Moriwaki
  • Patent number: RE43701
    Abstract: A liquid crystal display includes gate lines, data lines intersecting with the gate lines to define sub-pixels, and a transmission part including transmission lines connected with the data lines to transmit data signals, where at least one pair of the transmission lines are arranged to cross each other, some of the transmission lines cross each other so that a sequence of data signals applied to the data lines can be changed, any of the transmission lines is opened at a crossing point of the transmission lines and the opened portion is connected by a separate conductor, thereby insulating the transmission lines crossing each other from each other, and an additional process for connecting the opened portion is not needed, thereby simplifying a fabrication process for the liquid crystal display.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: October 2, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Gyu Kim