Nonrectangular (odd) Shaped Pixels Patents (Class 349/146)
  • Patent number: 7768617
    Abstract: When a conductive layer is formed, a first liquid composition containing a conductive material is applied on an outer side of a pattern that is desired to be formed (corresponding to a contour or an edge portion of a pattern), and a first conductive layer (insulating layer) having a frame-shape is formed. A second liquid composition containing a conductive material is applied so as to fill a space inside the first conductive layer having a frame-shape, whereby a second conductive layer is formed. The first conductive layer and the second conductive layer are formed so as to be in contact with each other, and the first conductive layer is formed so as to surround the second conductive layer. Therefore, the first conductive layer and the second conductive layer can be used as one continuous conductive layer.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: August 3, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hironobu Shoji, Ikuko Kawamata
  • Patent number: 7768616
    Abstract: A pixel structure including an active device, a first pixel electrode, a second pixel electrode, a coupling line, a common electrode, and a liquid crystal layer is provided. The first pixel electrode and the second pixel electrode have a plurality of sets of stripped electrode patterns extending along different directions, respectively, and the first pixel electrode is electrically insulated from the second pixel electrode. The coupling line is disposed under the first and the second pixel electrode and electrically insulated from the second pixel electrode. The first pixel electrode is electrically connected to the active device through the coupling line. The common electrode is disposed over the first and the second pixel electrode. The liquid crystal layer is disposed between the common electrode and the first and second pixel electrodes. Moreover, the liquid crystal layer has two polymer layers and a liquid crystal molecule layer disposed between the polymer layers.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: August 3, 2010
    Assignee: Au Optronics Corporation
    Inventors: Shu-I Huang, Wei-Chieh Sun, Chih-Yu Peng, Ya-Chieh Chen, Chai-Ling Lai
  • Patent number: 7768614
    Abstract: The present invention provides a liquid crystal display device which can reduce the difference in brightness between an image obtained from a reflection region and an image obtained from a transmission region. The liquid crystal display device includes a pixel electrode and a counter electrode in each pixel region on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween. The pixel region includes a transmission region and a reflection region. A gap between the pixel electrode and the counter electrode in the reflection region is set larger than the gap between the pixel electrode and the counter electrode in the transmission region.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: August 3, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Atsushi Hasegawa, Toshio Miyazawa
  • Patent number: 7750988
    Abstract: A liquid crystal display includes a substrate, a gate line over the substrate, a gate dielectric over the gate line, a first semiconductor feature over the gate dielectric, a first drain electrode and a first data line overlapping with the first semiconductor feature, a pixel electrode connected to the first drain electrode and overlapping with the first data line, and a light blocking film overlapping with the first semiconductor feature and the first data line.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: July 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Gyu Kim
  • Patent number: 7746436
    Abstract: A display panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a plurality of pixel electrodes in a plurality of lower pixel portions, respectively, and each of the pixel electrodes includes a plurality of lower openings spaced apart from each other. The second substrate includes a common electrode including a plurality of upper openings spaced apart from each other in a plurality of upper pixel portions corresponding to the lower pixel portions, respectively. The upper openings are connected to each other between adjacent upper pixel portions in a first direction. The liquid crystal layer is interposed between the first and second substrates.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Ju Shin, Chong Chul Chai, Hyun Wuk Kim, Hee Wook Do
  • Patent number: 7746437
    Abstract: A liquid crystal display includes an insulating substrate, an alignment layer covering a main surface of the insulating substrate, and electrodes interposed therebetween. The alignment layer defines an alignment direction parallel to the main surface, an upstream side as one end's side of the alignment direction, and a downstream side as another end's side of the alignment direction, and tilts liquid crystal molecules toward the downstream side. Each electrode includes an upstream section that includes a first edge facing the upstream side and a downstream section that includes a second edge facing the downstream side and is provided with a recess recessed relative to the second edge. The first recess forms on the downstream section a third edge extending in the alignment direction and a fourth edge connecting the third edge to the second edge and facing the upstream side.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: June 29, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuko Kizu, Yukio Kizaki, Rei Hasegawa, Hirofumi Wakemoto, Kenji Nakao, Tetsuya Kojima, Tetsuo Fukami
  • Patent number: 7733359
    Abstract: The present invention is a system and method for providing trapezoidal pixel segments with peripheral interconnections to rows and columns of pixel segments for electrical flat panel display devices. Interconnections made to pixel segments are located substantially in the non-emitting space between pixels. Pixel segment area may be configured to correspond to a desired luminous intensity for individual pixels. Luminous intensity may be determined from user, machine or process identified criteria.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: June 8, 2010
    Assignee: Rockwell Collins, Inc.
    Inventors: John K. Hagge, Dick G. Postma
  • Patent number: 7728929
    Abstract: A transflective liquid crystal display device includes a first and a second substrates, a liquid crystal layer, and a plurality of reflective electrodes and transparent electrodes. The liquid crystal layer is interposed between the first and the second substrates and functions in an OCB mode. The reflective electrode and the transparent electrode in one picture element are spaced apart from each other to produce a transverse electric field when a voltage is applied across the liquid crystal layer.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: June 1, 2010
    Assignee: Wintek Corporation
    Inventors: Yi-Chun Wu, Wen-Jui Liao, Chin-Chang Liu, Chian-Chang Lee
  • Patent number: 7724338
    Abstract: A thin film transistor array panel is provided, which includes: a substrate; a gate line formed on the substrate; first and second storage electrodes formed on the substrate and disposed opposite each other with respect to the gate line; a gate insulating layer formed in the gate line and the first and the second storage electrodes; a curved data line formed on the gate insulating layer; a thin film transistor connected to the gate line and the data line; a passivation layer formed on the data line and the thin film transistor; a pixel electrode formed on the passivation layer, connected to the thin film transistor, and having an obtuse corner and an acute corner; and an overpass cross over the gate line and connected to the first and the second storage electrodes.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 25, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Een-Mi Kwon, Ae Shin, Seung-Soo Baek, Young-Mi Tak
  • Patent number: 7701534
    Abstract: A display panel includes an opposite substrate and an array substrate, the array substrate includes a first base substrate, a plurality of pixels and a color filter. The opposite substrate includes a second base substrate, a first black matrix and a second black matrix. The first black matrix maintains an interval between the second base substrate and the array substrate, and the first black matrix is formed to correspond to a display area to block light. The second black matrix includes a first area and a second area. The first area surrounds the color filter and the second area surrounds the first area. The second area includes a height different from a height of the first area when viewed in a plan view.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: April 20, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho Lee, Jang-Soo Kim, Doo-Hwan You, Young-Je Cho, In-Ho Park
  • Patent number: 7701525
    Abstract: A liquid crystal panel includes a line extending between a first pixel and a second pixel which are adjacent to each other; a first pixel element portion for the first pixel; and a second pixel element portion for the second pixel. The first pixel element portion is provided on a side with respect to the line where the first pixel is disposed. The second pixel element portion is provided, along with the first pixel element portion, on the side with respect to the line where the first pixel is disposed.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: April 20, 2010
    Assignee: Epson Imaging Devices Corporation
    Inventors: Tomohide Onogi, Yasuo Segawa
  • Patent number: 7697101
    Abstract: An array substrate for a liquid crystal display device includes: a gate line on a substrate along a first direction; a data line along a second direction and crossing the gate line, the crossing of the data line and the gate line defining a pixel region having a parallelogrammic shape; a thin film transistor connected to the gate line and the data line; and a pixel electrode in the pixel region and connected to the thin film transistor.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: April 13, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Soon-Kwang Hong
  • Patent number: 7684001
    Abstract: A method for manufacturing a liquid crystal display panel is provided. A photo-alignment layer is formed on a first substrate. Patterned pixel electrodes including intersected electrodes and stripe electrodes are formed on a second substrate. A liquid crystal layer is formed between the photo-alignment layer and the patterned pixel electrodes. Each intersected electrode has a first directional portion and a second directional portion interlacing thereto. The stripe electrodes with silts connect the first and/or the second directional portions. When an electric field between the first and the second substrates is substantially zero, liquid crystal molecules near the photo-alignment layer are arranged at a pre-tilt angle, while those disposed at another side near the second substrate are substantially perpendicular to the second substrate. As the liquid crystal layer is driven, the liquid crystal molecules of the liquid crystal layer are substantially arranged along an extending direction of the slits.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 23, 2010
    Assignee: Au Optronics Corporation
    Inventors: Rong-Ching Yang, Ming-Hung Wu, Chia-Ming Chen, Yu-Ping Kuo
  • Patent number: 7684000
    Abstract: A pixel structure including a substrate, a scan line, a data line, a common line, an active device, a pixel electrode, a passivation layer and a transition auxiliary electrode is provided. The scan line and the data line on the substrate intersect with each other to define a pixel region. The common line on the substrate is parallel to the scan line. The active device disposed within the pixel region is electrically connected to the scan line and the data line. The pixel electrode disposed within the pixel region is electrically connected to the active device. The passivation layer is between the data line and the pixel electrode. The transition auxiliary electrode is adjacent to the periphery of the pixel electrode and electrically connected to the common line through a contact hole of the passivation layer. The transition auxiliary electrode and the pixel electrode are made of the same film.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: March 23, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chih-Chieh Wang, Yao-Hong Chien, Xin-Xin Lin, Li-Shan Chen, Xuan-Yu Liu
  • Patent number: 7675597
    Abstract: A thin film transistor panel for a liquid crystal display includes a substrate, a plurality of data lines formed over the substrate and extending in a first direction, and a plurality of gate lines formed over the substrate and extending in a second direction. The plurality of gate lines cross the plurality of data lines to form a plurality of pixel areas, each of the plurality of pixel areas having a multi-bent band shape. Each of a plurality of pixel electrodes are formed in a corresponding pixel area.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: March 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Gyu Kim, Back-Won Lee
  • Patent number: 7671952
    Abstract: A liquid crystal display panel is disclosed. The liquid crystal display panel includes a bottom substrate, a plurality of wires disposed on the bottom substrate, a plurality of pixel units electrically connected to the wires, a top substrate disposed opposite to the bottom substrate, a liquid crystal layer disposed between the top and bottom substrates, and at least one protrusion disposed on the top substrate corresponding to the wires formed between two adjacent pixel units. Each pixel unit includes a thin film transistor and a pixel electrode disposed on the bottom substrate. The pixel electrode is electrically connected to the thin film transistor, in which the pixel electrode has a plurality of main slits.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: March 2, 2010
    Assignee: AU Optronics Corp.
    Inventors: Mu-Jen Su, Chih-Ming Chang
  • Patent number: 7671951
    Abstract: A liquid crystal display includes a plurality of pixel electrodes that are formed in a matrix shape and each of which includes at least two parallelogram electrode pieces each having a pair of lengthwise edges and a pair of oblique edges adjacent the lengthwise edges, and a common electrode that faces the pixel electrodes and that has tilt direction determining members. Transverse center lines of the pixel electrodes that are adjacent each other in a row direction alternate, and the tilt direction determining members that correspond to the pixel electrodes that are adjacent to each other in the row direction are connected to each other in the row direction.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: March 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nak-Cho Choi, Ji-Won Sohn, Mee-Hye Jung, Ho-Yun Byun, Seon-Ah Cho
  • Patent number: 7667806
    Abstract: A thin film transistor panel for a liquid crystal display includes a substrate, a plurality of data lines formed over the substrate and extending in a first direction, and a plurality of gate lines formed over the substrate and extending in a second direction. The plurality of gate lines cross the plurality of data lines to form a plurality of pixel areas, each of the plurality of pixel areas having a multi-bent band shape. Each of a plurality of pixel electrodes are formed in a corresponding pixel area.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: February 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Gyu Kim, Back-Won Lee
  • Patent number: 7663716
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, the liquid crystal display device having a dot region as an image display unit, the dot region including a transmissive display region and a reflective display region, wherein a thickness adjustment layer for adjusting the thickness of the liquid crystal layer is disposed between the liquid crystal layer and at least one of the first substrate and the second substrate, the thickness adjustment layer decreasing the thickness of the liquid crystal layer in the reflective display region compared with the thickness of the liquid crystal layer in the transmissive display region, and a metal line is placed on the second substrate so as to overlap, in plan view, an inclined region of the thickness adjustment layer disposed between the transmissive display region and the reflective display region.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: February 16, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Hitoshi Tsuchiya
  • Patent number: 7659961
    Abstract: A thin film transistor substrate and a liquid crystal display capable of eliminating residual images and enhancing clarity are presented. The thin film transistor substrate includes a charge-up capacitor for increasing electric charge in a first pixel electrode of a first pixel capacitor and a charge-down capacitor decreasing electric charge in a second pixel electrode of a second pixel capacitor. An extension electrode portion of the charge-up capacitor is formed in the shape of a frame to reduce any variation in the overlapping area between the first pixel electrode and the extension electrode portion caused by an alignment error generated during the manufacturing process.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: February 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Hoo Yoo, Sung Min Kang, Hee Wook Do, Hoon Kim, Hyun Cheol Moon, Hye Ran You
  • Patent number: 7656487
    Abstract: A liquid crystal display includes a substrate, a pixel electrode disposed on the substrate and including a first subpixel electrode and a second subpixel electrode, and a common electrode facing the pixel electrode. The first subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to each other, the first oblique edges making an oblique angle with the first edge and the second edge and meeting the first edge. The second subpixel electrode comprises a first edge, a second edge disposed opposite the first edge, and two first oblique edges substantially parallel to or substantially perpendicular to the first oblique edges of the first subpixel electrode, the first oblique edges of the second subpixel electrode meeting the first edge of the second subpixel electrode.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: February 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Kyoung-Ju Shin, Hak-Sun Chang, Seung-Hoo Yoo, Hee-Wook Do, Yoon-Sung Um, Mee-Hye Jung
  • Patent number: 7646463
    Abstract: A pixel structure including a first active device, a second active device, a first pixel electrode electrically connecting the first active device, a second pixel electrode electrically connecting the second active device and a first capacitance lower electrode is provided. Both the first active device and the second active device electrically connect a scan line and a data line. The first pixel electrode has a first interlacing pattern and first stripe patterns connected thereto. The second pixel electrode has a second interlacing pattern and second stripe patterns connected thereto. The first capacitance lower electrode located under the first interlacing pattern has a first region and second regions. The first pixel electrode substantially shields the first region but does not shield the second regions. An area ratio of the first region to the second regions is about 10:1˜300:1.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: January 12, 2010
    Assignee: Au Optronics Corporation
    Inventors: Chieh-Wei Chen, Cheng-Han Tsao, Jenn-Jia Su
  • Patent number: 7643120
    Abstract: A pixel structure of an active device array substrate is provided. The pixel structure includes a scan line and a data line; an active device electrically coupled to the scan line and the data line; a pixel electrode electrically coupled to the active device, wherein the pixel electrode has at least one opening therein; and at least one island electrode disposed inside the opening, wherein the island electrode is electrically coupled to a voltage V, and the pixel electrode is electrically coupled to a driving voltage Vd that is different from the voltage V, such that a transverse electric field is formed between the island electrode and the pixel electrode.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: January 5, 2010
    Assignee: AU Optronics Corp.
    Inventors: Chi-Nan Liao, Liang-Bin Yu, Yuh-Huah Wang
  • Patent number: 7609351
    Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
  • Patent number: 7609353
    Abstract: The invention is directed to an improved flat panel liquid crystal display (LCD). In one embodiment the improved LCD includes a liquid crystal layer that completely fills a gap formed between a color filter array and a thin film transistor (TFT) array. The TFT array includes a substrate that includes one or more pixel areas. Each pixel area may be divided into at least two pixel sub-areas. Each pixel sub-area is configured to have a different electric field than its counterparts, such that mutual compensation in the sub-areas decreases distortion of a gamma curve and improves lateral visibility of the flat panel display. In one embodiment, a first pixel electrode is formed in a first of the at least two pixel sub-areas; and a second pixel electrode is formed in a second of the at least two pixel sub-areas.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Jae-Jin Lyu, Doo-Hwan You
  • Patent number: 7586575
    Abstract: A liquid crystal device includes a pair of substrates and a liquid crystal layer held between the substrates and containing a liquid crystal having negative dielectric anisotropy. The liquid crystal layer includes subpixels, each including a plurality of transmissive display regions and a reflective display region that are arranged in a predetermined direction. The transmissive display regions are disposed at the ends of each subpixel in the direction in which the transmissive and reflective display regions are arranged. The liquid crystal device further includes a thickness-adjusting layer disposed between at least one of the substrates and the liquid crystal layer so that the liquid crystal layer is thinner in the reflective display region than in the transmissive display regions.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: September 8, 2009
    Assignee: Epson Imaging Devices Corporation
    Inventors: Masakatsu Higa, Joji Nishimura
  • Patent number: 7580102
    Abstract: A gate line extending in a transverse direction and a data line intersecting the gate line are formed on the substrate. The data line includes a curved portion and an intermediate portion crossing the gate line substantially at a right angle. A pixel electrode is formed on an insulating layer. The pixel electrode is connected to a thin film transistor and it has an edge extending substantially parallel to the curved portion of the data line.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: August 25, 2009
    Assignee: Samsung Electronics, Co., Ltd.
    Inventor: Jang-Kun Song
  • Publication number: 20090207358
    Abstract: Horizontal-switching flexible liquid crystal displays (LCD) and fabrication methods thereof are provided. The horizontal-switching flexible liquid crystal display includes a flexible first substrate, a second substrate and a liquid crystal (LC) layer interposed therebetween. The LC layer consists of liquid crystal molecules affected by a horizontal field and divided into an upper portion and a lower portion. At least one pair of a patterned pixel electrode and a common electrode is disposed on the first substrate. The pixel electrode and the common electrode are formed on the same plane, thereby generating a horizontal field during operation. First and second alignment layers allow the LC molecules of the LC layer to be in a substantially vertical alignment. The phase retardation of the horizontal-switching LCD is due to the lower portion of the LC layer.
    Type: Application
    Filed: September 18, 2008
    Publication date: August 20, 2009
    Applicant: INDUSTRIAL TEACHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuo-Chang Lee, Kuo-Lung Lo, Yi-An Sha
  • Patent number: 7567325
    Abstract: A liquid crystal display device with a planar counter electrode formed on the first substrate in each pixel region, a pixel electrode formed on the counter electrode by way of an insulation layer, the pixel electrode formed of a first pixel electrode and a second pixel electrode in the pixel region, the first pixel electrode and the second pixel electrode have a large number of slits which are arranged in parallel in the electrodes and the extending direction of the slits is different from both extending directions of the gate lines and the drain lines, and the neighboring sides of the first and the second pixel electrodes are arranged to be parallel to each other, and a portion between the neighboring sides of the first and the second pixel electrodes is positioned above the counter electrode.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 28, 2009
    Assignee: Hitachi Displays, Ltd.
    Inventors: Kikuo Ono, Ikuko Mori, Ryutaro Oke, Hiroyuki Yarita
  • Patent number: 7561237
    Abstract: An in-plane switching mode liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line on the first substrate; a data line crossing the gate line to define a pixel region including a plurality of domains; a thin film transistor connected to the gate line and the data line; a common line parallel to and spaced apart from the gate line; a common electrode extending from the common line and having a ring shape; a pixel electrode connected to the thin film transistor and having a ring shape, the pixel electrode alternating with the common electrode; and a liquid crystal layer between the pixel electrode and the second substrate, the liquid crystal layer in neighboring domains having orientation directions different from each other.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: July 14, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Yun-Bok Lee
  • Patent number: 7554640
    Abstract: The present invention provides a liquid crystal display device which constitutes a unit pixel for color display using pixels having color filters of respective colors consisting of red, green, blue and white and is capable of achieving a suitable multi-domain effect. In a liquid crystal display device which includes red, green, blue and white color filters in respective pixels which are arranged close to each other, the inclination of extending direction of electrodes of the respective pixels is equal with respect to the respective pixels having the red, green and blue color filters and is different with respect to the pixel having the white color filter.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 30, 2009
    Assignee: Hitachi Displays, Ltd.
    Inventor: Kikuo Ono
  • Patent number: 7554641
    Abstract: A liquid crystal display device is disclosed that may prevent crosstalk from occurring. The liquid crystal display device includes pixel and common electrodes forming a fringe field, wherein the pixel electrodes are substantially in parallel over the common electrode and the pixel electrodes are connected with one another in a central portion.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: June 30, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Nagayama Kazuyoshi
  • Patent number: 7545472
    Abstract: The invention is directed to an improved flat panel liquid crystal display (LCD). In one embodiment the improved LCD includes a liquid crystal layer that completely fills a gap formed between a color filter array and a thin film transistor (TFT) array. The TFT array includes a substrate that includes one or more pixel areas. Each pixel area may be divided into at least two pixel sub-areas. Each pixel sub-area is configured to have a different electric field than its counterparts, such that mutual compensation in the sub-areas decreases distortion of a gamma curve and improves lateral visibility of the flat panel display. In one embodiment, a first pixel electrode is formed in a first of the at least two pixel sub-areas; and a second pixel electrode is formed in a second of the at least two pixel sub-areas.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: June 9, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Jae-Jin Lyu, Doo-Hwan You
  • Patent number: 7542101
    Abstract: A dioptric element array substrate 10 includes: a first dioptric element array 2 having a plurality of first dioptric elements 2a arranged two-dimensionally; a second dioptric element array 4 having a plurality of second dioptric elements 4a having a first refractive index arranged two-dimensionally in one-to-one correspondence with the first dioptric elements; and a third dioptric element array 5 having a second refractive index different from the first refractive index. Principal rays of beams incident on the first dioptric element array at different angles and converged with the first dioptric element array are collimated with the second and third dioptric element arrays.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 2, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhiro Kume, Noriaki Ohnishi, Naoko Mizusaki
  • Patent number: 7538845
    Abstract: The present invention provides a liquid crystal display device which can reduce the difference in brightness between an image obtained from a reflection region and an image obtained from a transmission region. The liquid crystal display device includes a pixel electrode and a counter electrode in each pixel region on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween. The pixel region includes a transmission region and a reflection region. A gap between the pixel electrode and the counter electrode in the reflection region is set larger than the gap between the pixel electrode and the counter electrode in the transmission region.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 26, 2009
    Assignee: Hitachi Displays, Ltd.
    Inventors: Atsushi Hasegawa, Toshio Miyazawa
  • Patent number: 7535534
    Abstract: An FFS (Fringe Field Switching) mode liquid crystal display comprises a lower substrate and an upper substrate and a gate line formed on the lower substrate. A data line crosses perpendicular to the gate line. A first ITO electrode is formed in a region defined by the gate line and the data line. A second ITO electrode of a comb-teeth pattern is formed on the lower substrate while being overlapped on the first ITO electrode. A black matrix formed on the upper substrate, wherein, a wedge portion of the second ITO electrode is formed at a position spaced by a predetermined interval to the inside from an edge section of the black matrix.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 19, 2009
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Kyung Ha Lee, Hyang Yul Kim, Jong Yob Jeon, Chi Wook An
  • Patent number: 7532293
    Abstract: An array substrate for a liquid crystal display device includes a substrate, a gate line and a data line disposed on the substrate, a pixel electrode, and a common electrode. The data line crosses the gate line to define a pixel region. The pixel electrode is disposed on the substrate in the pixel region having a polygonal lattice shape such that a unit lattice of the pixel electrode has an inner angle greater than 90°. The common electrode is disposed on the substrate in the pixel region alternating with the pixel electrode and having a polygonal lattice shape such that a unit lattice of the common electrode has an inner angle greater than 90°.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: May 12, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Sang-Ho Choi
  • Patent number: 7532294
    Abstract: A display apparatus comprises a plurality of pixel areas, each defined by gate lines and data lines, wherein the data lines are arranged with the gate lines forming an angular relationship with the data lines, and a plurality of pixel electrodes formed in the pixel areas and configured to be essentially parallel with the arrangement of the gate lines.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: May 12, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Chang-Hun Lee, Hak-Sun Chang, Hee-Wook Do, Jae-Jin Lyu, Yoon-Sung Um
  • Patent number: 7528894
    Abstract: Embodiments of a liquid crystal display having a specifically designed storage capacitor are disclosed. One embodiment of the liquid crystal display includes a liquid crystal layer sandwiched between two substrates and a plurality of pixel regions each divided into a plurality of areas by a regulating structure provided on at least one of the two substrates for regulating orientation of the liquid crystal layer. The storage capacitor includes a first capacitor electrode in each pixel region. The first capacitor electrode has a main body and at least a portion extending from one side of the main body, wherein the extending portion is positioned in a darker area of the pixel region in a light transmissive state. Other embodiments are also included.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: May 5, 2009
    Assignee: Chi Mei Optoelectronics Corp.
    Inventor: Chungyi Wang
  • Patent number: 7528918
    Abstract: A fringe field switching type thin film transistor substrate includes a double layered structure gate line; a data line crossing the gate line, wherein a gate insulating film is formed therebetween; a thin film transistor having a gate electrode connected to the gate line, a source electrode connected to the data line, and a drain electrode opposing the source electrode; a double layered structure common line parallel to the gate line; a common electrode plate integrated with the transparent conductive layer of the common line and formed in a pixel area defined by the crossing of the gate line and the data line; a pixel electrode slit covering the drain electrode of the thin film transistor and overlapping the common electrode plate, wherein the gate insulating film is formed therebetween in the pixel area; and a data protection pattern covering the data line and the source electrode.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: May 5, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Soon Sung Yoo, Youn Gyoung Chang, Heung Lyul Cho
  • Patent number: 7522246
    Abstract: A liquid crystal display device comprising electrodes of the one side formed on the pixel regions on the surface of one of the substrates arranged facing each other with the liquid crystals interposed therebetween and on the side of the liquid crystals, and electrodes of the other side formed on at least the pixel regions on the surface of the other substrate on the side of the liquid crystals, wherein each electrode of the one side has a shape of a plurality of circular patterns or patterns close to circles that are arranged in contact with each other, whereby a region where the electrode of the one side is not formed is surrounded by the circular patterns or patterns close to circles of an odd number of three or more, and projections are formed on the surface of the other substrate on the side of the liquid crystals at portions facing nearly the centers of the circular patterns or the patterns close to circles.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: April 21, 2009
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidehiro Sonoda, Junji Tanno
  • Patent number: 7518684
    Abstract: A pixel structure including an active device, a first pixel electrode, a second pixel electrode, a coupling line, a common electrode, and a liquid crystal layer is provided. The first pixel electrode and the second pixel electrode have a plurality of sets of stripped electrode patterns extending along different directions, respectively, and the first pixel electrode is electrically insulated from the second pixel electrode. The coupling line is disposed under the first and the second pixel electrode and electrically insulated from the second pixel electrode. The first pixel electrode is electrically connected to the active device through the coupling line. The common electrode is disposed over the first and the second pixel electrode. The liquid crystal layer is disposed between the common electrode and the first and second pixel electrodes. Moreover, the liquid crystal layer has two polymer layers and a liquid crystal molecule layer disposed between the polymer layers.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: April 14, 2009
    Assignee: Au Optronics Corporation
    Inventors: Shu-I Huang, Wei-Chieh Sun, Chih-Yu Peng, Ya-Chieh Chen, Chai-Ling Lai
  • Patent number: 7511778
    Abstract: A liquid crystal display includes a first substrate comprising a gate line; a pixel domain and a data line, the pixel domain forming a matrix comprising a pixel electrode, a storage capacitor, a reference side parallel to the gate line, and a pair of lateral sides which are parallel to each other and are inclined at a predetermined angle to the reference side, and the data line extends along the lateral sides, a second substrate disposed opposite to the first substrate and comprising a common electrode, and a liquid crystal layer which is operative in a vertical alignment mode and is sandwiched between the first and second substrates, wherein the pair of lateral sides respectively comprise a reduction section forming an angle with the reference side which is larger than the predetermined angle, the storage capacitor is placed within the reduction section and not extending out of the reduction section.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: March 31, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seung-Soo Baek
  • Patent number: 7508478
    Abstract: In displaying a price label, the price can be displayed at low resolution without any problem, but a bar code requires a high resolution display. In view of this, the invention provides an electrode structure for a display apparatus that can suppress increases in cost and power consumption while preventing image quality degradation, even when a low-resolution display area and a high-resolution display area are mixed on the same display. A liquid crystal panel 10 has a main display section 11 and a sub-display section 12. In the main display section 11, pixels are arranged in a matrix pattern. In the sub display section 12, rectangle-shaped pixels are arranged in a single row, and the pixel pitch in the sub display section 12 is m/n of that in the main display section 11 (n and m are integers).
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: March 24, 2009
    Assignee: Citizen Holdings Co., Ltd.
    Inventors: Kiyoshi Kamiya, Eiichi Tajima, Isao Ochi
  • Patent number: 7502089
    Abstract: A liquid crystal display includes: a substrate; a pixel electrode disposed on the substrate and having a first subpixel electrode and a second subpixel electrode; and a common electrode facing the pixel electrode, wherein the first subpixel electrode has a pair of bent edges substantially parallel to each other, the second subpixel electrode has a pair of bent edges substantially parallel to each other, and the second subpixel electrode has a height greater than a height of the first subpixel electrode.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: March 10, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seung-Hoo Yoo, Jong-Ho Son, Hee-Wook Do, Hyun-Wuk Kim, Hak-Sun Chang, Yoon-Sung Um
  • Patent number: 7495736
    Abstract: A pixel array with flexible circuit layout is disclosed, which comprises: a substrate, having a first surface; a plurality of scan lines; and a plurality of data lines; wherein the plural scan lines are disposed on the first surface while each has a profile defined by a non-linear first function, and the plural data lines are disposed on the first surface while each has a profile defined by a non-linear second function. When the pixel array is adapted for a flexible display and the display is being bended, the flexible circuit layout of the pixel array of the invention can effectively reduce the risk of the snapping of the conductive wires used in the pixel array so that the flexibility and reliability of the flexible display are enhanced.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: February 24, 2009
    Assignee: Industrial Technology Research Instituti
    Inventors: Bo-Chu Chen, Huai-Yuan Tseng, Yung-Hui Yeh, Ching-Chieh Lin
  • Patent number: 7492429
    Abstract: An in plane switching liquid crystal display (2) includes a first substrate (27), a second substrate (37) and a liquid crystal layer (23) having a plurality of liquid crystal molecules. A number of pixel electrodes (25) and common electrodes (24) are formed on the first substrate, and each of the pixel electrodes and common electrodes include at least two bend portions (241, 242, 243). Each bend portion has a first side and a second side. An original alignment direction of the liquid crystal molecules form at least two different angles with the sides of the bend portions of the common and pixel electrodes. When a voltage is applied to the pixel electrodes and the common electrodes, the liquid crystal molecules are aligned along at least three different directions. Therefore, the IPS-LCD can have uniform viewing performance at different viewing angles.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: February 17, 2009
    Assignee: Innolux Display Corp.
    Inventors: Chueh-Ju Chen, Chiu-Lien Yang
  • Patent number: 7492431
    Abstract: In an active matrix liquid crystal display device, a drain and source of a TFT element for controlling power supply to a pixel electrode, are arranged so that an alignment direction of liquid crystal molecules over the source and drain does not change, thereby preventing formation of ghost images in the display. In one embodiment, an electric field generated between the source and drain is parallel to an initial non-zero alignment angle of the molecules.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 17, 2009
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Kimikazu Matsumoto, Shinichi Nishida
  • Patent number: 7486361
    Abstract: The invention relates to a transflective liquid crystal display capable of display in both of transmissive and reflective modes and a method of manufacturing the same and provides a transflective liquid crystal display which can achieve high display characteristics in both of the transmissive and reflective modes.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: February 3, 2009
    Assignees: Fujitsu Limited, Au Optronics Corporation
    Inventors: Hidefumi Yoshida, Yasutoshi Tasaka, Kunihiro Tashiro, Katsufumi Ohmuro, Tsuyoshi Kamada, Kazuya Ueda, Masakazu Shibasaki
  • Patent number: 7471365
    Abstract: A liquid crystal display is provided, which includes: a first substrate; a first signal line disposed on the first substrate; a second signal line disposed on the first substrate and intersecting the first signal line; a thin film transistor coupled with the first and the second signal lines; a pixel electrode coupled with the thin film transistor; a second substrate facing the first substrate; a common electrode arranged on the second substrate; a liquid crystal layer arranged between the first substrate and the second substrate; a first tilt direction determining member arranged on the first substrate; and a second tilt direction determining member arranged on the first substrate, wherein the first tilt direction determining member is about 15 microns to about 20 microns apart from the second tilt direction determining member.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: December 30, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak-Sun Chang, Ji-Won Sohn, Nak-Cho Choi, Hyun-Wuk Kim