Patents Assigned to NLT Technologies, Ltd.
  • Patent number: 8319701
    Abstract: LCD unit includes first and second LCD panels stacked one on another. An image-data processing unit outputs monochrome image data to the second LCD panel, and color image data to the first LCD panel. The monochrome image data specifies a full transmission for a pixel having a luminance not less than a threshold, the original gray-scale level for a pixel having a luminance less than the threshold. The color image data is generated based on the monochrome image data and input image data.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: November 27, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Hidenori Ikeno, Takashi Yatsushiro
  • Patent number: 8320041
    Abstract: A three-dimensional image display device is provided with a display panel. The display panel is provided with a plurality of pixels for the right eyes and pixels for the left eye, and light emitted from the pixels for the right eye is made incident to the right eye of a viewer and light emitted from the pixels for the left eye is made incident to the left eye. When the normal distance between the display panel and the viewer is set to a maximum observation distance, D (mm), then definition X (dpi) of at least one of a vertical direction and a horizontal direction on a display plane of the display panel is set as in the following expression. X ? 25.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: November 27, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Masao Imai, Nobuaki Takanashi, Setsuo Kaneko
  • Patent number: 8314787
    Abstract: Driver IC 1 including a built-in charge pump power supply is mounted on display panel 5. Among wirings connected to driver IC 1, the width of FPC mounting pad 4 of connection wiring 3 leading to a driver built-in power supply is widened as compared with pads 4 of other wirings 2. In addition, a portion of terminal intervals of a terminal array of FPC mounting pad 4 is widened as compared with other terminal intervals so that a wiring path from pad 4 to driver IC 1 is reduced. Similar terminal widths and terminal intervals are adopted for terminal 6 on the side of flexible substrate 7 electrically connected to FPC mounting pad 4 by pressure bonding.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: November 20, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yukihiro Ito
  • Patent number: 8305314
    Abstract: A sheet presence detecting apparatus includes a plurality of dots including a control area whose display state can be controlled and at least one dot with a bright point including the control area whose display state is controlled to be in an always black state and a bright point area which is always bright.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: November 6, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Toru Ukita, Takeshi Sasaki
  • Patent number: 8294859
    Abstract: A transflective liquid crystal display device includes a liquid crystal film and a polarizing plate on a backlight source side. A transflective liquid crystal display device includes an uniaxially anisotropic film (a quarter wave plate) and a polarizing plate on a visual confirmation side. The liquid crystal film has the nematic hybrid orientation, in which a polymeric liquid crystal substance formed in a liquid state is fixed. The optical axis of the anisotropic film is disposed to be orthogonal or substantially orthogonal to that of the liquid crystal film.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 23, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Kenichirou Naka
  • Patent number: 8289483
    Abstract: A semi-transmissive-type liquid crystal display device is provided which is capable of preventing an electric erosion reaction between a reflective film made of Al (aluminum) or an Al alloy and a transparent electrode film made of ITO or a like (Indium Tin Oxide) and of inhibiting occurrence of a flicker caused by a residual DC (Direct Current) voltage in the reflective film. In the semi-transmissive-type of a liquid crystal display device, a transmissive region to provide light from a backlight source and a reflective region to receive ambient light are placed in a pixel region and a transparent electrode film is formed above a reflective film formed in the reflective region on an active matrix substrate with a second passivation film being interposed between the reflective film and the transparent electrode film.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 16, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Mamoru Okamoto, Michiaki Sakamoto, Osamu Sukegawa, Ken-Ichirou Naka, Shin-ichi Nakata, Masami Yamashita
  • Publication number: 20120257018
    Abstract: Provided is a stereoscopic display device provided with a stereoscopic display panel and a display controller, the stereoscopic display panel including a lenticular lens, a color filter substrate, a TFT substrate, etc. Unit pixels arranged in a horizontal direction parallel to the direction in which both eyes of viewer are arranged are alternately used as left-eye pixels and right-eye pixels. The display controller determined, according to temperature information from a temperature sensor, the contraction/expansion of the lens by a stereoscopic image generating module and generates 3D image data for driving the display panel in which the amount of disparity in a specific disparity direction is corrected on the basis of parameter information defined by an effective linear expansion coefficient inherent in the stereoscopic display panel, or the like and the magnitude of the temperature to thereby ensure a predetermined stereoscopic visual recognition range even when the lens are contracted/expanded.
    Type: Application
    Filed: December 3, 2010
    Publication date: October 11, 2012
    Applicant: NLT Technologies, Ltd.
    Inventors: Koji Shigemura, Di Wu, Michiaki Sakamoto
  • Patent number: 8282259
    Abstract: The light-guide plate has an extended portion. The extended portion has a recess formed in a thickness direction, and the optical sensor is arranged within the recess.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: October 9, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Hideki Itaya
  • Patent number: 8284356
    Abstract: An LCD device includes a reflective area in each pixel. A reflection film having a convex-concave surface is provided in the reflective area, film in cross section configuration is formed. Each pixel includes a pixel electrode and a common electrode for applying a lateral electric field on a LC layer. The inclination angle of the reflection film has an inclination angle distribution, wherein the angle component in an area corresponding to the electrodes has a lower angle distribution than the angle components in an area corresponding to a gap between adjacent two of the electrodes.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: October 9, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Kenichirou Naka, Michiaki Sakamoto, Hiroshi Nagai, Kenichi Mori
  • Patent number: 8274465
    Abstract: A liquid crystal display device includes a display section, an image signal drive circuit, a scan signal drive circuit, a common electrode potential control circuit, and a synchronous circuit. The display section has scan electrodes, image signal electrodes, a plurality of pixel electrodes arranged in a matrix, a plurality of switching elements for transmitting an image signal to the pixel electrodes, and a common electrode. The common electrode potential control circuit changes an electric potential of the common electrode into a pulse shape, after the scan signal drive circuit has scanned all the scan electrodes and the image signal has been transmitted to the pixel electrodes. Otherwise, the image signal is overdriven. Otherwise, torque for returning to a no-voltage-application state is increased.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: September 25, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Kenichi Takatori
  • Patent number: 8269924
    Abstract: A light shield member in a LCD unit includes a first shield section that includes a pile of two color filter patterns and separates each effective opening of pixel from an effective opening of the adjacent pixel, and a second shield section that includes a pile of three color filter patterns and shields a TFT area including a TFT and the vicinity thereof.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: September 18, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Sounosuke Takahashi, Teruaki Suzuki, Shinichi Nishida, Yoshikazu Sakaguchi, Yoichi Sasaki
  • Patent number: 8269919
    Abstract: A micro-louver (1) includes: a transparent substrate (2); a concavoconvex shape portion (5) formed on at least one surface of the transparent substrate (2) and in a prescribed pattern for diffracting incident light to form an image; and a light controlling layer (7) including at least one transparent layer (3) and at least light-absorption layer (4) arranged alternately on said at least one surface of the transparent substrate (2), each of said at least one transparent layer (3) and said at least one transparent layer (4) extending in a direction that intersects said at least one surface of the transparent substrate (2).
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 18, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Koji Mimura, Ken Sumiyoshi
  • Patent number: 8269547
    Abstract: A bootstrap circuit comprises: a first transistor connecting a first power supply with an output node; and a second transistor applying a first input signal to a gate node of the first transistor and having a conductivity type identical to that of the first transistor. A second input signal obtained by inverting a level of the first input signal, delaying the inverted signal, and adding a direct current bias to the delayed signal is inputted to a gate node of the second transistor.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: September 18, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yoshihiro Nonaka
  • Patent number: 8264476
    Abstract: The present invention relates to a semiconductor device in which a power supply circuit is disposed on an array substrate, which achieves reduction of the size by suppressing an increase of the area occupied by the power supply wiring. The feature of the present invention is that a power supply circuit is disposed adjacent to a supply voltage input terminal and a signal line driving circuit. An extremely large amount of electric current is flown in a power supply wiring between the power supply circuit and the supply voltage input terminal and a power supply wiring between the power supply circuit and the signal line driving circuit. Thus, by disposing the power supply circuit adjacent to the supply voltage input terminal and the signal line driving circuit, the power supply wirings therebetween can be shortened. Accordingly, the wiring resistance proportional to the product of the length and the width becomes small so that the thinned power supply wiring can be tolerated.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: September 11, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yoshihiro Nonaka
  • Patent number: 8264473
    Abstract: To provide a timing controller and the like, which can display an image properly regardless of the scanning direction even when an image display device is formed by using signal-line driving ICs having residual output terminals that are not connected to the signal lines. The timing controller includes: a reset signal storage section which stores a plurality of reset signals including a normal reset signal and a specific reset signal; a reset signal setting section which sets one of the plurality of reset signals stored in the reset signal storage section for each of the plurality of ports in accordance with a signal from the outside; and a reset signal synthesizing section which synthesizes the reset signals set by the reset signal setting section and the video data, and simultaneously outputs acquired data to the plurality of ports, respectively.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: September 11, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Atsushi Kota
  • Patent number: 8264643
    Abstract: An active matrix liquid crystal display device of the invention includes a liquid crystal display panel operating in a normally black mode having a first substrate provided with a color filter and a second substrate provided with an active matrix array, wherein the first substrate is provided with a laminated colored layer with three colors, a laminated colored layer with two colors and a colored layer with one color in a frame part surrounding a display area without being provided with a black matrix, and the second substrate is provided with a conductive film formed in a region which is opposed to the laminated colored layer with two colors and the colored layer with one color, between the display area and the laminated colored layer with three colors.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: September 11, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Shinichi Nishida, Hideki Itou, Teruaki Suzuki, Sounosuke Takahashi, Yoshikazu Sakaguchi
  • Patent number: 8264442
    Abstract: A method of driving a display panel is provided which is capable of restoring normal operation to a timing controller in which an abnormality in display control has occurred. When a signal detecting section of one timing controller detects an abnormality that no signal is input or that a supply of a clock signal is stopped, the detected result is transferred from a two-way communicating section of the one timing controller to a two-way communicating section of the other timing controller. The other timing controller having received the detected result transfers a normal image signal and/or clock signal from the two-way communicating section of the other timing controller to the two-way communicating section of the one timing controller. The one timing controller exerts display control of a liquid crystal display panel according to the transferred image signal and/or clock signal.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: September 11, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Kouichi Ooga, Tsuyoshi Ichiraku
  • Patent number: 8264657
    Abstract: A spherical spacer is used as a spacer member defining a gap, and is fixed to a color filter substrate. A concave portion coming in contact with a part of the spherical spacer is formed in a position in a TFT substrate, the position being opposite to the spherical spacer. The substrates are bonded with each other by engaging the spherical spacer and the concave portion with each other.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 11, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yoshiaki Hashimoto
  • Patent number: 8259267
    Abstract: A manufacturing method of the present invention is a manufacturing method of a display device with a functional film that is adhered to a principal plane of a display panel provided with a display part. A first resin layer is formed outside the display part on the principal plane to surround the display part, a communication part which allows an inner area surrounded by the first resin layer and an outer area outside of the first resin layer to communicate with each other in an in-plane direction of the principal plane is formed, the inner area is coated with a second resin, the functional film is superimposed on the principal plane, and the second resin is pressed and spread throughout the inner area and the communication part by pressing the functional film.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 4, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Makoto Mori
  • Patent number: 8259281
    Abstract: A LCD device includes color LEDs, a light-mixing optical guide plate and a main optical guide plate for guiding lights from the color LEDs, a LCD panel for receiving lights from the main optical guide plate, a housing for supporting the LCD panel, light-mixing optical guide plate and main optical guide plate in block, and a heat sink for dissipating the heat transferred from the LEDs. On the rear surface side of the light-mixing optical guide plate, a heat receiving member is provided having a higher heat receiving capability than the rest of the housing.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: September 4, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Kei Takahashi