Patents Examined by Michael Inadomi
  • Patent number: 7884901
    Abstract: An LCD panel includes a first substrate, a second substrate, alignment protrusions and a liquid crystal layer between the first substrate and the second substrate. The first substrate includes pixel units arranged in an array. Each of the pixel units has at least one reflection area and one transmittance area. The first substrate has concaves in the reflection areas. The second substrate is above the first substrate. The first substrate or the second substrate has at least one padding layer in the reflection area. The alignment protrusions having approximately the same height are disposed on the second substrate and located in centers of each of the reflections and the transmittance areas. In the reflection area, a group of the alignment protrusions are in the concaves to keep a gap from the first substrate. The other group of the alignment protrusions outside of the concaves contact with the first substrate directly.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: February 8, 2011
    Assignee: Au Optronics Corporation
    Inventors: Shih-Chyuan Fan Jiang, Ching-Huan Lin, Chih-Ming Chang
  • Patent number: 7884889
    Abstract: An array substrate comprises a scanning line; a data line crossing the scanning line; a pixel electrode; a common electrode; and a Thin Film Transistor comprising a gate electrode connected to the scanning line, a source electrode connected to the data line and a drain electrode connected to the pixel electrode, the drain electrode and the scanning line forming a first capacitor therebetween. The array substrate further comprises an auxiliary capacitor which is in parallel with the first capacitor.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: February 8, 2011
    Assignee: Infovision Optoelectronics (Kunshan) Co., Ltd.
    Inventors: Te-Chen Chung, Tean-Sen Jen
  • Patent number: 7880842
    Abstract: A liquid-crystal display device comprising a liquid-crystal cell with plural domains and a transparent film comprising at least two domains that differ in in-plane retardation (Re) and/or thickness-direction retardation (Rth) for a visible light wavelength ? nm is disclosed. The domains of the transparent film and the domains of the liquid-crystal cell have no correlation in terms of their arrangement and/or size.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: February 1, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yukito Saitoh, Yusuke Ohashi
  • Patent number: 7876402
    Abstract: A liquid crystal display device includes an upper panel comprising an alignment layer attached on an inner surface of the upper panel and a polarizer attached on an outer surface of the upper panel, a lower panel including a first surface and an opposite second surface, the first surface facing the inner surface of the upper panel, a phase retardation layer and a plurality of metallic lines disposed on the first surface of the lower panel, the plurality of metallic lines disposed substantially parallel to each other and which extend in a first direction, liquid crystal molecules injected between the upper and lower panels and a backlight unit comprising a light source which emits light toward the lower panel and a reflector which reflects light from the lower panel, wherein the phase retardation layer is disposed between the plurality of metallic lines and the second surface of the lower panel.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-Hyun Kim
  • Patent number: 7876395
    Abstract: A backlight module is provided. The backlight module includes a frame, a plurality of light emitting elements, at least one photo sensor device and a diffusing plate. The frame has a bottom plate on which the plurality of light emitting elements are disposed. The photo sensor device is distributed on the bottom plate and among the plurality of light emitting elements. It is to be noted that the photo sensor device includes a light mixing component having a receiving space configured at a bottom thereof, and a photo sensor chip received in the receiving space. The diffusing plate is disposed in the frame and above the light emitting elements and the photo sensor device. The backlight module has an excellent light outputting performance and an LCD using the same has better displaying performance.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: January 25, 2011
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Chung-Hsing Ho
  • Patent number: 7864264
    Abstract: A display device includes a display panel having opposed first and second substrates with the second substrate being arranged closer to a viewer, an upper polarizer which is arranged closer to the viewer than the second substrate, and a resin film which is arranged closer to the viewer than the upper polarizer and is in contact with the upper polarizer. An outer periphery of the upper polarizer is arranged inside an outer periphery of the second substrate, and an outer periphery of the resin film is arranged outside the outer periphery of the upper polarizer as viewed from a front surface of the display panel. A cushion material is in contact with the second substrate, and the resin film is interposed between the second substrate and the resin film.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: January 4, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Tsutomu Sato, Masayuki Yanagihara, Koichi Fukuda
  • Patent number: 7859639
    Abstract: A LCD device includes a gate line on a substrate and a data line crossing the gate line to define a pixel area; a thin film transistor source and drain electrodes; a common line parallel to the gate line; a common electrode extended from the common line and a pixel electrode extending from the drain electrode wherein the gate line and the common line have a first conductive layer group having at least double conductive layers, and the common electrode is formed by an extension of at least one transparent conductive layer of the common line; and the gate line, the source electrode and the drain electrode have a second conductive layer group having at least double conductive layers, and the pixel electrode is formed by an extension of at least one transparent conductive layer of the drain electrode.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: December 28, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Byung Chul Ahn
  • Patent number: 7859627
    Abstract: An object of the present invention is to provide an antireflective film having an anti-reflection function with which reflection of external light which is incident on the antireflective film can be further reduced and a high-visibility display device having such an antireflective film. The tops of the plurality of pyramidal projections are evenly spaced and each side of the base of a pyramidal projection is in contact with one side of the base of an adjacent pyramidal projection. That is, one pyramidal projection is surrounded by other pyramidal projections, and the base of the pyramidal projection and the base of the adjacent pyramidal projection have a side in common.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: December 28, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jiro Nishida, Yuji Egi, Takeshi Nishi, Shunpei Yamazaki
  • Patent number: 7852422
    Abstract: A thin film transistor (TFT) array substrate including a substrate, scan lines and data lines both disposed on the substrate, and pixel structures is provided. A plurality of pixel areas is defined by the scan lines and the data lines on the substrate. Each scan line has a driving signal input terminal and an end terminal. Each pixel area includes a first sub-pixel area and a second sub-pixel area. The pixel structures are respectively disposed in the pixel areas and driven by the scan lines and the data lines. Each pixel structure in the respective pixel area includes a first TFT corresponding to the first sub-pixel area and a second TFT corresponding to the second sub-pixel area. Besides, ratios of a channel width to a channel length of the second TFTs connected to the same scan line increase gradually from the driving signal input terminal to the end terminal.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: December 14, 2010
    Assignee: Au Optronics Corporation
    Inventors: Cheng-Han Tsao, Yi-Pai Huang, Ting-Jui Chang
  • Patent number: 7852418
    Abstract: A display apparatus includes a substrate, in which first and second pixel areas are defined. A first pixel electrode including a first main pixel electrode and a first sub-pixel electrode is formed in the first pixel area and a second pixel electrode including a second main pixel electrode and a second sub-pixel electrode is formed in the second pixel area. Adjacent outer contour parts of the first and second pixel electrodes, which face each other, have shapes different from and corresponding to each other, the area ratio of the first main pixel electrode to the first sub-pixel electrode being the same as the area ratio of the second main pixel electrode to the second sub-pixel electrode.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: December 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Yoon-Sung Um, Seung-Hoo Yoo, Kyoung-Ju Shin, Kang-Woo Kim
  • Patent number: 7847913
    Abstract: A liquid crystal material is used in which the maximum angle of the optical axis change by liquid crystal molecule when a voltage of one polarity is applied is larger than 45 degrees and a condition of |2Ps·A|>|5(V)Clc·A| is satisfied where Ps (nC/cm2) is the magnitude of the spontaneous polarization per unit area, A (cm2) is the electrode area of the pixel and Clc (nF/cm2) is the liquid crystal capacity per unit area. The transmittance in the liquid crystal part is increased and excellent display can be performed without the provision of a storage capacitor. Consequently, the storage capacitor is unnecessary, so that the aperture ratio of the liquid crystal panel can be increased.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 7, 2010
    Assignee: Fujitsu Limited
    Inventors: Toshiaki Yoshihara, Tetsuya Makino, Shinji Tadaki, Hironori Shiroto, Yoshinori Kiyota, Keiichi Betsui
  • Patent number: 7830475
    Abstract: A liquid crystal display device including two liquid crystal display panels located back to back is made thinner. A liquid crystal display device includes first and second liquid crystal display panels located back to back. The liquid crystal display device further includes a light source provided to a side of a rear substrate of the first liquid crystal display panel, a light source provided to a side of a rear substrate of the second liquid crystal display panel, and a polarizing element provided between the first and second liquid crystal display panels. The rear substrate of the first liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the second liquid crystal display panel.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: November 9, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Misono, Mitsuhiro Murata, Yukio Matsuura
  • Patent number: 7804564
    Abstract: Provided is a wide angle diffuser including a plate-shaped body, a plurality of microlenses, and a plurality of prisms. The plate-shaped body has an incident surface on which light is incident and an exit surface through which light is emitted form the plate-shaped body. The microlenses and the prisms are respectively disposed on one of the incident surface and the exit surface. Also provided is a liquid crystal display including a liquid crystal panel, a backlight unit, provided on a rear surface of the liquid crystal panel, which emits collimated light to the liquid crystal panel, and the wide angle diffuser diffusing light passing through the liquid crystal panel.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: September 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jee-hong Min, Moon-gyu Lee
  • Patent number: 7800727
    Abstract: In a substrate of a liquid crystal display device which forms a bus line which three-dimensionally intersects scanning signal lines, video signal lines and an insulation layer thereon, the present invention facilitates repairs of short-circuiting between the respective signal lines and the bus line. A liquid crystal display device includes a liquid crystal panel which is constituted of a pair of substrates with liquid crystal sandwiched therebetween. Out of the pair of substrates, one substrate includes a bus line which is arranged outside a display region and is electrically connected to a first conductive layer arranged inside the display region, and a plurality of signal lines which three-dimensionally intersect the bus line by way of an insulation layer. The bus line includes opening portions outside intersecting regions where the bus line is overlapped to the signal lines as viewed in a plan view. The opening portions are arranged on both sides of each intersecting region.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: September 21, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hiroaki Iwato, Katsumi Ichihara
  • Patent number: 7796234
    Abstract: A device display includes a light guide with an optical fiber embedded in an optically transparent material, a pixel array that has a pixel aligned with a first end of the optical fiber, and a reflective mechanism provided at a second end of the optical fiber. The reflective mechanism is capable of reflecting light, received by the pixel, back to the pixel via the optical fiber.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: September 14, 2010
    Assignee: Sony Ericsson Mobile Communications AB
    Inventors: Mats Kleverman, Gunnar Klinghult, Mats Wernersson
  • Patent number: 7796201
    Abstract: A pixel device capable of composing a panel is provided herein. The pixel device includes a first switch, a first capacitor, and a second capacitor. The first switch delivers a pixel signal to a pixel electrode according to a control signal. The first capacitor has a first part of a first metal layer, a second metal layer, and a first dielectric coupled between the first part of the first metal layer and the second metal layer. The second capacitor has a first poly-silicon layer, an electrode layer, and a second dielectric coupled between the first poly-silicon layer and the electrode layer. The first and the second capacitors are parallel connected without increasing the area of the pixel and serve as a storage capacitor. Therefore, the pixel device can obtain more overall storage capacitance.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: September 14, 2010
    Assignee: Himax Display, Inc.
    Inventor: Cheng-Chi Yen
  • Patent number: 7796215
    Abstract: A liquid crystal display device includes first and second liquid crystal display panels located back to back. The liquid crystal display device further includes a light source provided to a side of a rear substrate of the first liquid crystal display panel, a light source provided to a side of a rear substrate of the second liquid crystal display panel, and a polarizing element provided between the first and second liquid crystal display panels. The rear substrate of the first liquid crystal display panel includes a light guide layer for directing light, incident on the rear substrate from the light source and propagating inside the rear substrate, toward the second liquid crystal display panel. The rear substrate of the second liquid crystal display panel includes a light guide layer for directing light toward the first liquid crystal display panel.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: September 14, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Misono, Mitsuhiro Murata, Yukio Matsuura
  • Patent number: 7796208
    Abstract: A display device includes a cover. A back light apparatus, a set of optical films, and a liquid crystal display module are disposed behind the cover. The back light apparatus includes a planar bezel and a light source module. The planar bezel has a lengthwise opening. The light source module has a bar, a light source disposed on the bar, and a fixing member. The bar is partially or totally disposed in the lengthwise opening of the planar bezel and both the planar bezel and the bar are combined by the fixing member. The light source is disposed on the bar and provides the light beam to the liquid crystal display module.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: September 14, 2010
    Assignee: AU Optronics Corp.
    Inventors: Ming-Hsuen Ho, Sheng-Chieh Lung, Ying-Hsi Yeh
  • Patent number: 7791680
    Abstract: A display device which can suppress an afterimage phenomenon from occurring includes a first plate including a pixel electrode which is disposed in a transmitting region and a first impurity adsorption electrode which is disposed in a light-shielding region and is separated from the pixel electrode, a second plate facing the first plate and including a second impurity adsorption electrode which is disposed in the light-shielding region to face the first impurity adsorption electrode, and an intermediate layer interposed between the first plate and the second plate.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-woo Lee, Hee-seop Kim, Chang-hun Lee, Eun-hee Han
  • Patent number: 7777842
    Abstract: To improve the reflectivity or the transmissivity significantly, there is provided a liquid crystal display device including a liquid crystal display panel having a pair of substrates and liquid crystal sandwiched between the pair of substrates. The liquid crystal display panel includes a plurality of subpixels each having an active element, a pixel electrode, and a counter electrode, in which an electric field is generated by the pixel electrode and the counter electrode to drive the liquid crystal. The liquid crystal display device includes a light-shielding film and a color filter formed on a first substrate of the pair of substrates, a scanning line for supplying the active element with a scanning voltage, the scanning line being formed on a second substrate of the pair of substrates. The boundary region between the subpixels adjacent along the scanning line has no light-shielding film and no color filter.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: August 17, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Koichi Igeta, Junji Tanno, Hirotaka Imayama, Tetsuya Nagata