Nonrectilinear Rows And Columns Patents (Class 349/145)
  • 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
  • Patent number: 7567329
    Abstract: An array substrate for a liquid crystal display device includes: a substrate; a gate line on the substrate; a data line crossing the gate line to define a pixel region including a transmissive portion and a reflective portion, the data line being divided into first and second branch lines, the first and second branch lines being spaced apart from each other and disposed in the reflective portion of the adjacent pixel regions, respectively; a thin film transistor connected to the gate line and the data line; a reflective electrode corresponding to the reflective portion and covering the first and second branch lines; and a transparent electrode corresponding to the transmissive portion and connected to the reflective electrode.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woo-Nam Jeong, Hyun-Suk Jin, Won-Seok Kang
  • Patent number: 7561239
    Abstract: A liquid crystal device includes a substrate having unit pixels, each of which includes a plurality of subpixels arranged in a plurality of rows and a plurality of columns. The substrate includes switching elements, a first insulating film disposed at least on the switching elements, a first transparent electrode disposed on the first insulating film, a second transparent electrode disposed on the second insulating film, having a plurality of slits corresponding to each one of the subpixels, and generating an electric field through the slits between the first and second transparent electrodes. The direction in which a long side of each of the slits extends is defined to be different from the direction in which the columns extend.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: July 14, 2009
    Assignee: Epson Imaging Devices Corporation
    Inventor: Shin Fujita
  • 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: 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: 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: 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: 7518700
    Abstract: The subject invention provides a display element which achieves reduction in driving voltage. The display element according to the present invention includes substrates 1 and 2, at least one of which is transparent, and a medium layer 3 held between the substrates 1 and 2, the display element further including on the substrate 1 electrodes 4 and 5 for generating an electric field in a direction substantially parallel to the substrates so as to apply the electric field to the medium layer 3 to cause optical modulation of the medium; and an alignment film 6 which is provided on the surface of the substrate 2. With this arrangement, the voltage level is not decreased because of the alignment film 6, and the driving voltage of the display element does not need to be increased, thereby ensuring reduction of driving voltage.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: April 14, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Seiji Shibahara, Iichiro Inoue, Koichi Miyachi
  • Patent number: 7508475
    Abstract: A liquid crystal display device comprises a first substrate including a first insulation substrate, and rectangular pixel electrodes provided in a matrix on the first insulation substrate and elongated in a first direction, a second substrate opposing the first substrate, and including a second insulation substrate, a counter electrode on the second insulation substrate, and projections on the counter electrode, elongated in a second direction intersecting the first direction, and a liquid crystal layer held between the first and second substrates. The projections extend through pixel regions defined by the pixel electrodes and counter electrode, and are formed asymmetrical with respect to a first imaginary line passing through centers of opposite short sides of each pixel electrode and extending in the first direction, and with respect to a second imaginary line passing through centers of opposite long sides of each pixel electrode and extending in the second direction.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: March 24, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Yasushi Kawata, Akio Murayama, Masaki Obi, Kisako Ninomiya, Norihiro Yoshida
  • 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: 7502087
    Abstract: An in-plane switching LCD including a plurality of gate and data lines crossing each other to define a plurality of pixel areas; a thin film transistor formed at a crossing of the data and gate lines; a pair of common lines facing each other and substantially parallel to the data lines in the pixel areas; a common electrode integrally formed with the common lines, the common electrode being inclined by a predetermined angle; a pair of pixel electrode lines overlapping the common lines; and a pixel electrode integrally formed with the pixel electrode lines, the pixel electrode being inclined substantially parallel to the common electrode, the pixel electrode being arranged in an alternating pattern with the common electrode, wherein the gate lines are formed substantially parallel to the common electrode and the pixel electrode.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: March 10, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Do Sung Kim, Byung Koo Kang
  • 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: 7474373
    Abstract: A display element has a arrangement that allows the pixel to have at least two domains in which the medium shows optical anisotropies of different directions when a force (for example, an electric field) is applied or when no force is applied. It is preferable that directions of the optical anisotropies occurred in the respective domains when the electric field is applied respectively have 45 degreesĀ±10 degrees with absorption axes of polarizers, and that the directions of the optical anisotropies occurred in the respective domains when the electric field is applied make 90 degreesĀ±20 degrees.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: January 6, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Miyachi, Seiji Shibahara, Iichiro Inoue, Shoichi Ishihara, Takako Koide
  • Patent number: 7471366
    Abstract: A liquid crystal device includes a first substrate, a second substrate, a plurality of pixel electrodes, an alignment layer, a liquid crystal, and an opposite electrode. The plurality of pixel electrodes are disposed between the first substrate and the second substrate, and include a first pixel electrode and a second pixel electrode that face each other. The alignment layer is disposed between the plurality of pixel electrodes and the second substrate. The liquid crystal is disposed between the alignment layer and the second substrate, and the liquid crystal is aligned by the first alignment layer. The opposite electrode is disposed between the liquid crystal and the second substrate. A selective electric voltage is applied between the opposite electrode and at least one of the plurality of pixel electrodes to change an orientation state of the liquid crystal from a spray orientation to a bend orientation.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 30, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Kinya Ozawa
  • Patent number: 7471367
    Abstract: An in-plane switching mode liquid crystal display device includes a substrate; a plurality of gate lines on the substrate, the gate lines having a zigzag shape; a plurality of first common lines between adjacent pairs of the gate lines, the plurality of first common lines having a zigzag shape; a plurality of data lines crossing the gate lines and the first common lines to define a plurality of pixel regions; a thin film transistor connected to one of the gate lines and one of the data lines; a plurality of auxiliary common lines extending from the first common lines, the plurality of auxiliary common lines parallel to the data lines; a plurality of common electrodes extending from the plurality of auxiliary common lines, the plurality of common electrodes parallel to the first common lines; a plurality of pixel lines connected to the thin film transistor; and a plurality of pixel electrodes extending from the plurality of pixel lines, the plurality of pixel electrodes parallel to and alternating with the plu
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: December 30, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Hyeon-Ho Son
  • Patent number: 7466386
    Abstract: A liquid crystal display device (LCD) is provided. The LCD includes first and second substrates; a plurality of gate lines on the first substrate; a plurality of data lines crossing the gate lines to define a plurality of pixel regions; a thin film transistor at a crossing intersection of the gate line and the data line; a pixel electrode in the pixel region, the pixel electrode having a zigzag slit pattern formed therein, the slit pattern dividing the pixel electrode into at least two domains; a dielectric protrusion on the second substrate; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 16, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Jung Hyun Kim
  • Patent number: 7460202
    Abstract: A liquid crystal device includes a pair of substrates including a first substrate and a second substrate and a liquid crystal layer having a negative dielectric anisotropy and interposed between the first and second substrates. The first substrate includes a data line, a switching device connected to the data line, an insulating film formed on the data line and the switching device, a pixel electrode formed on the insulating film, and a contact hole to which the switching device and a wire extending from the pixel electrode are connected.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 2, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Horiguchi, Masakatsu Higa
  • Patent number: 7443458
    Abstract: A liquid crystal display (LCD) capable of preventing texture, light leakage, and/or formation of an instantaneous afterimage while improving an aperture ratio is presented. The LCD includes a first insulating substrate, a gate line formed on the first insulating substrate, a data line insulated from the gate line and extending substantially perpendicularly to the gate line wherein the gate line and the data line define a pixel, and a thin film transistor (TFT) connected to the gate line and the data line. A first sub-pixel electrode is connected to the TFT, and a second sub-pixel electrode is capacitively coupled to the first sub-pixel electrode through a coupling electrode, the second sub-pixel electrode being separated from the first sub-pixel electrode by a gap.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 28, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Soon-il Ahn
  • Patent number: 7440060
    Abstract: A liquid crystal display device includes: gate lines and data lines on a first substrate, the gate lines and the data lines crossing each other and defining a pixel region; a thin film transistor adjacent to a crossing of the gate and data lines; a common line in parallel to the gate line; a common electrode extending from the common line and having a circular shape; a pixel electrode connected to the thin film transistor and having a circular shape; an auxiliary common line on a second substrate spaced apart from and facing the first substrate; an auxiliary common electrode extending from the auxiliary common line and having a circular shape; and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: October 21, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Yun-Bok Lee
  • Patent number: 7397528
    Abstract: Aspects of the invention can provide a fast-response, homeotropic-mode, liquid crystal display device performing bright and high-quality display having a feature of wide-viewing angle. The liquid crystal display device includes a pair of substrates, each having electrodes on one surface thereof, a liquid crystal layer sandwiched between the pair of substrates, having the electrodes interposed therebetween, and a display area having a plurality of dot areas two-dimensionally arrayed therein. The liquid crystal layer can include liquid crystal vertically aligned in an initial state. In a single dot area, each pixel electrode has a plurality of island-shaped portions and connecting portions electrically connecting adjacent two of the island-shaped portions to each other, and the pluralities of island-shaped portions are arrayed in a stagger pattern in plan view.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: July 8, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Osamu Okumura
  • Patent number: 7394513
    Abstract: A display device includes: a plurality of signal lines which extend in a zigzag manner in a column direction and to which image signals are supplied, respectively; an insulation film which covers the plurality of signal lines; and a plurality of pixel electrodes which are formed on the insulation film and to which the image signals are input from the plurality of signal lines, respectively. A distance between ones of the pixel electrodes located adjacent to each other in the column direction is equal to or larger than a line width of the signal lines.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: July 1, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoichi Andou, Mutsumi Nakajima, Ichiro Shiraki, Keisuke Yoshida, Keiichi Ina
  • Patent number: 7379146
    Abstract: A fringe field switching liquid crystal display (FFS-LCD) device (200) includes a first substrate (210) and a second substrate (220) disposed opposite to each other and spaced apart a predetermined distance, a liquid crystal layer (250) interposed between the first and second substrates, a plurality of gate lines (233) and data lines (234) formed on the second substrates, thereby defining a plurality of pixel regions, and a plurality of pixel electrodes (223) and a plate-like common electrode (221) provided in each of the pixel regions. The pixel electrodes have a plurality of curving comb portions so as to generate a continuous variation electric field between the pixel and common electrodes. Liquid crystal molecules in the FFS-LCD device are twisted in different continuous directions so as to reduce the color shift.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: May 27, 2008
    Assignee: Innolux Display Corp.
    Inventors: Tze-Min Lin, Chiu-Lien Yang, Chueh-Ju Chen, Jia-Pang Pang
  • Patent number: 7372529
    Abstract: A liquid crystal display device has been disclosed. The liquid crystal display device provides a display with a high reflectance (high transmittance) and a high color purity while maintaining white balance and adjusts the white balance by changing the occupied area instead of the transmission characteristics of a CF in order to prevent yellowing of the display due to a low-temperature light source.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: May 13, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Norio Sugiura
  • Patent number: 7345730
    Abstract: A liquid crystal display (LCD) with a direction control electrode and a pixel electrode forming a capacitance in a pixel regions is disclosed. Gate lines are formed on the first substrate and extending in the first direction. Data lines are intersecting the gate lines and each data line has a bent shape. Pixel regions are defined by the intersecting of the gate lines and the data lines. The direction control electrode is formed at the corresponding pixel region and electrically connected to the corresponding data line. The pixel electrode is formed at the corresponding pixel region and has a shape conformal to the corresponding pixel region. By adjusting the capacitance between the direction control electrode and the pixel electrode, liquid crystal stability is enhanced.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: March 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Doo-Hwan You
  • Patent number: 7342633
    Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second lines formed on the substrate, intersecting the first signal line, and including a plurality of curved portions having at least two curve points and a plurality of intermediate portions, the curved portions and the intermediate portions alternately connected; a plurality of pixel electrodes located substantially in areas defined by the first and the second signal lines; and a plurality of thin film transistors connected to the first and the second signal lines and the pixel electrodes.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: March 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Mi Tak, Seung-Soo Baek, Dong-Gyu Kim
  • Patent number: 7336332
    Abstract: A reflective type IPS LCD includes a transparent upper substrate (100) and a lower substrate (200), and liquid crystal molecules (300) interposed between the substrates. A reflection layer (250) is disposed on the lower substrate. A plurality of gate lines (170) and a plurality of data lines (180) are formed on the upper substrate, thereby defining a plurality of pixel regions arranged in a matrix. Each pixel region includes pixel electrodes (210) and common electrodes (220). The pixel electrodes and the common electrodes have a bent configuration, and are spaced apart from each other. Therefore the electric field generated by them is along two directions, and the LCD exhibits a two-domain display effect. When viewing the LCD display from any oblique angle, the color shifts generated by the two domains counteract, and thus the overall color shift of the display is small.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: February 26, 2008
    Assignee: Innolux Display Corp.
    Inventors: Chiu-Lien Yang, Jia-Pang Pang, Chueh-Ju Chen
  • Patent number: 7333170
    Abstract: An in plane switching mode liquid crystal display device and its fabrication method are disclosed.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: February 19, 2008
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Heume-Il Baek
  • Patent number: 7317503
    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 1, 2003
    Date of Patent: January 8, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
  • Patent number: 7304706
    Abstract: In an IPS liquid crystal display device, a reduction in optical leakage from the outer peripheral portion of an electrode pattern in flexed configuration and an improvement in the contrast of display on a screen are intended. The IPS liquid crystal display device has a plurality of signal lines and scan lines arranged as a matrix on a TFT substrate, TFT switching elements, and comb-like pixel electrodes connected to the TFT switching elements. In a pixel region, a comb-like common electrode is formed in interdigitated relation with the pixel electrodes. The pixel electrodes, the common electrode, and the signal lines are formed in mutually parallel and flexed configuration at a given angle relative to an optical axis. The outer edge of each pixel electrode, the common electrode, and the signal lines is added with fine stairwise fine stepped portions composed of the same material as composing the electrodes and lines.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: December 4, 2007
    Assignee: NEC LCD Technologies, Ltd
    Inventor: Chikaaki Mizoguchi
  • Patent number: 7256856
    Abstract: A liquid crystal device 100 comprises a liquid crystal panel 110 and a holding member 120. A liquid crystal driving IC 115 and chip part 116 are mounted on a substrate extension portion 111T of the liquid crystal panel 110. The holding member 120 comprises, on an extension facing portion 122, a storing recess 122a for storing the liquid crystal driving IC 115, and a storing recess 122b for storing the chip part 116.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: August 14, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Chiaki Imaeda
  • Patent number: 7253865
    Abstract: A display device has an array 40 of pixels and row and column driver circuitry comprising row driver circuit portions R and column driver circuit portions C, each pixel being addressed by a row driver circuit portion R and a column driver circuit portion C which connect to respective row and column conductor lines. The array of pixels has a non-rectangular outer shape, and the device comprises at least three row driver circuit portions R and at least three column driver circuit portions C disposed alternately around the outer periphery of the array. This arrangement enables row and column drivers to be divided into portions which are arranged in such a way that addressing can be provided for complicated display shapes.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: August 7, 2007
    Assignee: Koninklijke Philips Electronics N. V.
    Inventor: Stephen J. Battersby
  • Patent number: 7253856
    Abstract: A liquid crystal display device includes first and second substrates facing and spaced apart from each other, a common electrode on an inner surface of the first substrate, a gate line on an inner surface of the second substrate, a data line crossing the gate line, a switching device connected to the gate and data lines, a first pixel electrode connected to the switching device and spaced apart from the data line, a black matrix covering the data line and having a first portion width extending from a center line of the data line to a first edge of the black matrix, and a second portion width different from the first portion width extending from the center line of the data line to a second edge of the black matrix opposite to the first edge of the black matrix, and a liquid crystal material layer interposed between the first pixel electrode and common electrode.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: August 7, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Gi-Hong Kim, Hyung-Ki Hong
  • Patent number: 7242452
    Abstract: A reflective liquid crystal display device and a fabricating method thereof are disclosed in the present invention. The reflective liquid crystal display device includes a substrate having a pixel region, a gate line on the substrate, a thin film transistor connected to the gate line and the data line, the thin film transistor having a gate electrode, an active layer, and source and drain electrodes, first and second reflective electrodes connected to the drain electrode, the first and second reflective electrodes completely covering the data line and separated by a gap, and a data line crossing the gate line, wherein the data line has a bent shape including first, second, and third portions, and the first portion parallel to the gate line connects the second and third portions, and the second and third portions are formed under the first and second reflective electrodes, respectively.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: July 10, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Woo-Nam Jeong, Hyun-Suk Jin, Yong-Jin Cho
  • Patent number: 7227609
    Abstract: This disclosure provides an array substrate for use in an IPS-LCD device which includes substantially zigzag-shaped pixel and common electrodes. The pixel electrodes and the common electrodes are connected with a connecting line and the common line, respectively. However, if each pixel and common electrode forms an acute angle with each connecting and common lines, liquid crystal molecules are strangely rotated and produce extraordinary domains in the intersection when the voltage is turned ON. Moreover, disclination occurs around the intersection. In order to overcome these problems, substantially sawtooth-shaped bases are employed of where the pixel and common electrodes meet the connecting and common lines, respectively. So each electrode forms an obtuse angle with each respective line, and thus the rotational direction of the liquid crystal molecules are the same in regions of the pixel area when the voltage is supplied.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: June 5, 2007
    Assignee: LG.Philips LCD Co., Ltd
    Inventor: Yun-Bok Lee
  • Patent number: 7212271
    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: November 25, 2003
    Date of Patent: May 1, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hidehiro Sonoda, Junji Tanno
  • Patent number: 7206054
    Abstract: A thin film transistor array panel is provided, which includes: a substrate; a first signal line formed on the substrate; a second signal line formed on the substrate and having an intersecting portion intersecting the first signal line and a curved portion connected to the intersecting portion; a first thin film transistor connected to the first and the second signal lines; and a pixel electrode that are connected to the first thin film transistor, includes first and second partitions, and are curved along the curved portion of the second signal line.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: April 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Gyu Kim
  • Patent number: 7199852
    Abstract: Structures, devices, systems and methods of using fringe field switching mode liquid crystal display (LCD) in which the electrodes have a trapezoidal structure. The disclosed fringe field switching mode LCD includes common electrodes and pixel electrodes arranged on a back substrate to produce a fringe field. Each electrode is comprised of alternating sections of main bone and trapezoidal electrode.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: April 3, 2007
    Assignees: Research Foundation of the University of Central Florida, Incorporated, Toppoly Optoelectronics Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Patent number: 7187425
    Abstract: Exemplary embodiments of the present invention include a pixel structure, an electro-optical apparatus, and an electronic instrument, which are capable of clearly displaying both images, such as natural paintings, and line drawings, such as characters, with a very simple structure. A pixel structure according to exemplary embodiments of the invention include a plurality of pixels disposed in a delta arrangement, each of the plurality of pixels having four sub-pixels that are four divisions divided from the pixel, and divided sides of the sub-pixels are arranged in a vertical direction or in a horizontal direction. In the course of display using a plurality of the pixels aligned in a delta arrangement, images, such as natural paintings, can be clearly displayed. On the other hand, in the course of display using a plurality of the second pixels A aligned in a square arrangement, line drawings, such as characters and figures, can be clearly displayed.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: March 6, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Yasushi Yamazaki
  • Patent number: 7177002
    Abstract: Pixel regions are formed on a liquid-crystal-side surface of one substrate out of respective substrates which are arranged to face each other in an opposed manner with liquid crystal therebetween, wherein each pixel region includes pixel electrodes having bent portions and counter electrodes which are arranged at positions where the pixel electrodes are shifted in parallel, the pixel electrode and the counter electrode are respectively constituted of two electrodes which are overlapped to each other as an upper layer and a lower layer by way of an insulation film, and to the lower-layer side electrode of at least one electrode out of the pixel electrode and the counter electrode, projections which further project from crests of convex-portion sides of the bent portions and extend toward another electrode side are provided.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: February 13, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Shinzo Matsumoto, Yoshiaki Nakayoshi, Ken Sasaki, Masaki Mega
  • Patent number: 7170568
    Abstract: A liquid crystal shutter device is provided with a liquid crystal cell including a first substrate (1), a second substrate (21), and liquid crystal sandwiched therebetween, pixel electrodes (11, 12) which are signal electrodes and lead-out electrodes (15) provided on the first substrate (1), counter electrodes which are common electrodes facing the pixel electrodes, provided on the second substrate (21), and a plurality of pixel rows (200, 300, 400) which are composed of pixels (2, 3, 4, etc.) formed by overlapped portions of the pixel electrodes and the counter electrodes, and the liquid crystal shutter device controls light applied to a photosensitive member continuously and relatively moving in a direction orthogonal to the pixel rows, in which the counter electrodes are provided separately for the respective pixel rows. Further, an RGB coupling electrode (46) for electrically connecting the counter electrodes of the respective pixel rows is preferably provided.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: January 30, 2007
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Kanetaka Sekiguchi, Sadao Masubuchi
  • Patent number: 7142274
    Abstract: A liquid crystal display device includes a first substrate including a thin film transistor, a data line, a pixel electrode, and a common electrode, a second substrate, and liquid crystal sandwiched between the first and second substrates, wherein an image signal is applied to the thin film transistor through the data line to generate an electric field between the pixel electrode receiving the image signal and the common electrode such that the liquid crystal is rotated by the electric field in a plane which is in parallel with the first substrate. The first substrate includes an electrically insulating inorganic film covering the data line therewith, a first island-shaped electrically insulating organic film formed on the electrically insulating inorganic film above the data line, and a shield common electrode covering the first island-shaped electrically insulating organic film therewith and overlapping the data line when viewed vertically.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: November 28, 2006
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Yoshiro Kitagawa, Satoshi Kimura, Tsuyoshi Satoh, Hidenori Kusanagi, Juko Funaki, Sounosuke Takahashi, Takayuki Konno, Shinichi Nishida
  • Patent number: 7139043
    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: October 7, 2004
    Date of Patent: November 21, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Een-Mi Kwon, Ae Shin, Seung-Soo Baek, Young-Mi Tak
  • Patent number: 7113242
    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: April 2, 2004
    Date of Patent: September 26, 2006
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Dong-Gyu Kim, Back-Won Lee
  • Patent number: 7098980
    Abstract: An active matrix type liquid crystal display device where display pixels are constituted on a substrate by scanning signal lines, video signal lines, pixel electrodes, common electrodes and active elements in order to obtain an image having good visual field angle characteristics and a high display quality with less residual image. The substrate is opposed to another substrate having a color filter forming a liquid crystal alignment film, and the liquid crystal layer is held by the two substrates. The electrodes and the active elements are so constituted that an electric field can be applied to the liquid crystal layer substantially in parallel with the substrate. The video signal lines, the common electrodes and the pixel electrodes are bent within a range of 60 to 120 degrees relative to the direction of liquid crystal alignment.
    Type: Grant
    Filed: April 19, 2003
    Date of Patent: August 29, 2006
    Assignee: Obayashiseikou Co., Ltd.
    Inventor: Naoto Hirota
  • Patent number: 7081930
    Abstract: Pixels of a liquid crystal display are laid on a delta pattern, and short-circuit is liable to take place between a source layer and a drain layer and/or between a gate layer and a storage electrode layer, wherein a contact slit is formed in a gate insulating layer intervening between the gate/storage electrode layers and the source/drain layers in such a manner as to break a piece of residual amorphous silicon and make a piece of residual metal exposed thereto, and the piece of residual metal is broken during a patterning step for the source/drain layers.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: July 25, 2006
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Naoyuki Taguchi
  • Patent number: 7075601
    Abstract: Pixels of red, blue and green are sequentially arranged in the row direction. The red and green pixels are alternately arranged in the column while the blue pixels being arranged between the neighboring red and each blue pixel is surrounded by the four red and green pixels. Gate lines are arranged at respective pixel rows. Data lines cross over the gate lines in an insulating manner and are arranged at the respective pixel columns. Pixel electrodes and thin film transistor are arranged at the respective pixels. At a predetermined pixel unit, the data lines to the two blue pixel are connected to each other. The pixel electrodes are overlapped with the gate lines or data lines via a passivation layer of low dielectric organic material or insulating material such as SiOC, SiOF.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: July 11, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mun-Pyo Hong, Wan-Shick Hong, Nam-Seok Roh, Kyuha Chung, Chong-Chul Chai
  • Patent number: 6888604
    Abstract: A liquid crystal display includes an array pixel including a plurality of pixels arranged in a matrix. The plurality of pixels include a set of pixels including a pair of center pixels adjacent to each other, and a pair of first-color pixels and a pair of second-color pixels obliquely facing each other across the center pixels. Each pixel includes a pixel electrode and a thin film transistor. The liquid crystal display further includes a plurality of gate lines extending in a row direction for transmitting a gate signal to the pixels, and a plurality of data lines extending in a column direction for transmitting data signals to the pixels. The pixels are subject to polarity inversion.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: May 3, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Guy Rho, Keun-Kyu Song, Jeong-Ye Choi, Nam-Seok Roh, Cheol-Woo Park, Mun-Pyo Hong, Ho-Yong Jeong
  • Patent number: 6870588
    Abstract: Disclosed are a liquid crystal display and a substrate for the same. The substrate comprises first wires formed in one direction on the substrate; second wires intersecting and insulated from the first wires; pixel electrodes formed in pixel regions defined by the first wires and the second wires; and switching elements connected to the first wires, the second wires and the pixel electrodes, wherein an interval between two adjacent second wires has a predetermined dimension that repeatedly varies from one set of adjacent second wires to the next, and a side of the pixel electrodes adjacent to the second wires is shaped in a pattern identical to the second wires such that the pixel electrodes have a wide portion and a narrow portion.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: March 22, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Kun Song
  • Patent number: 6861671
    Abstract: A thin film transistor liquid crystal display (TFT-LCD) and fabrication method thereof. The fabrication method includes depositing a first metal layer on a transparent substrate, patterning the first metal layer to form at least two adjacent gate electrodes, forming a gate insulating layer on the gate electrodes, forming a semiconductor layer on the insulating layer, patterning the semiconductor layer into a predetermined shape, depositing a second metal layer on the transparent substrate, patterning the second metal layer to form a source/drain electrode layer, and depositing an insulating layer on the transparent substrate. A contact hole is defined via the insulating layer, source/drain electrode layer, and gate insulating layer, exposing a part of the surface of transparent substrate between the adjacent gate electrodes. A transparent conductive layer is deposited on the transparent substrate, and a light-shielding matrix is formed directly above the contact hole.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: March 1, 2005
    Assignee: Quanta Display Inc.
    Inventor: Maw-Song Chen