Patents Assigned to NLT Technologies, Ltd.
  • Patent number: 8259250
    Abstract: Disclosed is a liquid crystal display apparatus, including: a liquid crystal display panel; a polarizing plate which is processed to be conductive and is attached to a surface of the liquid crystal display panel; and a conductive frame, wherein the polarizing plate includes a projecting area which projects outward from the edge of the liquid crystal display panel, and wherein the conductive frame presses the projecting area of the polarizing plate in order to ground the polarizing plate. A method for grounding a liquid crystal display apparatus is also disclosed.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: September 4, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Akihide Sato
  • Patent number: 8253869
    Abstract: A liquid crystal display device with a touch panel has a reflective display region and a transmissive display region, at least the transmissive display region including a liquid crystal layer energizable according to a lateral electric field mode. The liquid crystal display device includes a liquid crystal layer held between a pair of substrate disposed in confronting relation to each other, observer-side circular polarizer 9 disposed outwardly of one of the substrates, back-side circular polarizer 8 disposed outwardly of the other substrate, observer-side compensator 11 for reducing refractive index anisotropy of the liquid crystal layer in the reflective display region and the liquid crystal layer in the transmissive display region, and touch panel 13 disposed between observer-side circular polarizer 9 and observer-side compensator 11.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: August 28, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Jin Matsushima, Ken Sumiyoshi, Shinichi Uehara
  • Patent number: 8248406
    Abstract: A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: August 21, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Patent number: 8248146
    Abstract: The semiconductor circuit has a power supply voltage generation circuit; a first circuit having a transistor that is connected to the power supply voltage generation circuit, and that varies a drain current value by utilizing the degree of freedom of an electron spin to vary the spin states of the source and the drain; and a main function circuit that is connected to the first circuit, and has a main function. Operation/non-operation of the main function circuit is selected by the drain current value. The operating speed of the circuit can thereby be adjusted through a simple circuit structure.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: August 21, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Kenichi Takatori
  • Patent number: 8242553
    Abstract: A thin film transistor (TFT) substrate includes first and second TFTs on the same substrate. The first TFT has a feature that a lower conductive layer or a bottom gate electrode layer is provided between the substrate and a first insulating layer while an upper conductive layer or a top gate electrode layer is disposed on a second insulating layer formed on a semiconductor layer which is formed on the first insulating layer. The first conductive layer has first and second areas such that the first area overlaps with the first conductive layer without overlapping with the semiconductor layer while the second area overlaps with the semiconductor layer, and the first area is larger than the second area while the second insulating layer is thinner than the first insulating layer. The second TFT has the same configuration as the first TFT except that the gate electrode layer is eliminated.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: August 14, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Takahiro Korenari, Hiroshi Tanabe
  • Patent number: 8237885
    Abstract: A liquid crystal display includes a liquid crystal panel in the pixel electrode and common electrodes formed within a pixel comprise repeating structures. The angular range of light incident from the light source is narrower along a direction of the repeating structures than along an orthogonal direction.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: August 7, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Kouji Mimura, Ken Sumiyoshi
  • Patent number: 8232949
    Abstract: A liquid crystal display device is provided which is capable of improving quality of moving images. A field dividing driving operation is performed in which an odd field during which each of scanning electrodes in odd-numbered rows is sequentially driven and an even field during which each of scanning electrodes in even-numbered rows is sequentially driven occur, alternately and repeatedly, with time width of a refresh rate. In the former half of the odd field, display data is written in each of pixel regions corresponding to scanning electrodes in odd-numbered rows and, in the latter half of the odd field, black data is written in each of the pixel regions corresponding to scanning electrodes in the odd-numbered rows.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: July 31, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Hiroaki Kimura
  • Patent number: 8232124
    Abstract: A thin-film transistor array includes an electrically insulating substrate, a plurality of thin-film transistors arranged in a matrix on the substrate, and each including a channel, a source, and a drain each comprised of an oxide-semiconductor film, a pixel electrode integrally formed with the drain, a source signal line through which a source signal is transmitted to a group of thin-film transistors, a gate signal line through which a gate signal is transmitted to a group of thin-film transistors, a source terminal formed at an end of the source signal line, and a gate terminal formed at an end of the gate signal line. The source terminal and the gate terminal are formed in the same layer as a layer in which the channel is formed. The source terminal and the gate terminal have the same electric conductivity as that of the pixel electrode.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 31, 2012
    Assignees: NEC Corporation, NLT Technologies, Ltd.
    Inventors: Kazushige Takechi, Mitsuru Nakata
  • Patent number: 8233114
    Abstract: An optical element manufacturing method according to the present invention includes: disposing a mask on a transparent photosensitive resin; patterning said transparent resin by applying an exposure light to said transparent photosensitive resin through said mask to form a transparent layer; forming a light absorbing layer by filling a gap in the transparent layer with a black curable resin; and illuminating a mask surface of the mask with the exposure light at an angle.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: July 31, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Koji Mimura, Ken Sumiyoshi
  • Patent number: 8228596
    Abstract: In this display device, a pixel constituting a display image is made up of a liquid chamber which can contain liquid. To such a pixel, a liquid supply passage and a liquid discharge passage are connected via a switch. The liquid supply passage, the liquid discharge passage, and the pixel together constitute a flow passage. The switch is configured to control the passage and blockage of liquid in the flow passage. Further, the transfer of liquid into and out of a pixel is performed by liquid transfer means.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: July 24, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Ken Sumiyoshi, Jin Matsushima
  • Patent number: 8228263
    Abstract: A LCD unit includes a plurality of LC panels stacked one on another. If a picture to be displayed on the LCD unit is a still picture, one of the LC panels consecutively scans plurality of rows of pixels in a direction opposite to the scanning direction of the rows of pixels in the rest of LC panels. If the picture is a moving picture, all the LC panels consecutively scans in the same direction.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: July 24, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Hidenori Ikeno, Takashi Yatsushiro
  • Patent number: 8217920
    Abstract: A display device has a data-holding circuit with a capacitance and a display portion with a plurality of pixel electrodes, formed on a first carrier substrate. In the display device, a second carrier substrate disposed opposite the first carrier substrate is placed above the display portion, but the opposing substrate is not present above the area in which the data-holding circuit is disposed. The parasitic capacitance of the data-holding circuit can thereby be reduced. Therefore, the capacitance in the data-holding circuit can be reduced and the area required can be reduced as well. The display data of all the pixels is sent serially to the liquid crystal module without high-speed transfer for each frame time interval, and size can be reduced because the controller IC and interface circuit are formed on the same substrate as the display device substrate.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: July 10, 2012
    Assignees: NEC Corporation, NLT Technologies, Ltd.
    Inventors: Kenichi Takatori, Hiroshi Haga
  • Patent number: 8215784
    Abstract: A backlight device includes a chassis which is box in shape and having a bottom part and four side walls, a light source arranged on the bottom part of the chassis, a diffuser panel supported by a top end surface of each of the side walls of the chassis, and an optical sheet arranged on the diffuser panel, wherein the top end surface of each of the side walls is downward sloping so that height becomes continuously low toward inside the chassis.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 10, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Hirofumi Habara
  • Patent number: 8203671
    Abstract: A display device, capable of changing view angle range and suitable for reducing thickness and weight, is provided. One compensating panel has such a structure that two polymer films, having birefringence, adhere to each other. The birefringence directions of the polymer films are parallel or orthogonal to the liquid crystal orientation direction. Similarly, another compensating panel has such a structure that two polymer films, having birefringence, adhere to each other. The birefringence directions of the polymer films are parallel or orthogonal to the liquid crystal orientation direction. Since the compensating panel does not include glass substrates but includes polymer films, the display device can be thin and light.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 19, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Ken Sumiyoshi, Koji Mimura
  • Patent number: 8203536
    Abstract: A display unit includes a display panel having a display screen on which images are displayed, and (b) a touch panel covering the display screen therewith and detecting a touch thereto made by a user. The touch panel detects the touch in accordance with touch-panel drive signals input thereto. The display panel displays images in accordance with display-drive signals input thereto. The touch panel is switched between a first condition in which the touch-panel drive signals are input into the touch panel and a second condition in which the touch panel is electrically open.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: June 19, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yukihiro Ito
  • Patent number: 8199173
    Abstract: In a liquid crystal display apparatus, one display pixel has a total of six sub pixels, namely, a red sub pixel for a left eye, a green sub pixel for the left eye, a blue sub pixel for the left eye, a red sub pixel for a right eye, a green sub pixel for the right eye, and a blue sub pixel for the right eye. Those sub pixels are arranged in a square area, two in a horizontal direction along which gate lines extend, three in a vertical direction along which data lines extend. The polarity of the data lines with respect to a potential of a common electrode is inverted every time three gate lines are scanned and every frame.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: June 12, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Masao Iriguchi, Naoyasu Ikeda, Shin-ichi Uehara
  • Patent number: 8194211
    Abstract: A LCD unit includes a reflective area and a transmissive area in each pixel, which are driven by respective drive electrode assemblies. A first substrate and a second substrate that sandwich therebetween a LC layer include respective shied films in the boundary area between the reflective area and the transmissive area.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: June 5, 2012
    Assignee: NLT Technologies, Ltd.
    Inventors: Hiroshi Nagai, Michiaki Sakamoto, Kenichirou Naka, Kenichi Mori
  • Patent number: 8194220
    Abstract: In an in-plane switching mode liquid crystal display device, a liquid crystal layer is interposed between a first substrate and a second substrate. The first substrate is provided with a first electrode member having a comb-tooth-like portion and a second electrode member so as to generate an electric field between the first electrode member and the second electrode member. Further, a protruded electrode member is provided so as to be branched from at least one of a portion short of a tip end portion and a portion short of a base portion of the comb-tooth-like portion so as to form a branched shape of an L-shaped portion in an integrated planar shape with combination of the protruded electrode member and one of the tip end portion and the base portion.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 5, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Teruaki Suzuki
  • Patent number: 8189163
    Abstract: Disclosed is a display device including a first substrate and a second substrate bonded to the first substrate. The first substrate includes a first surface and a second surface, on which a columnar spacer is formed. The second substrate includes a third surface, on which a columnar spacer facing portion is formed, and a fourth surface. The second surface is opposed to the third surface, and at least one of a top portion of the columnar spacer and the columnar spacer facing portion has an inclined surface, which is inclined relative to the second surface or the third surface. An inclination direction of the inclined surface, when viewed from a normal direction of the first surface or the fourth surface, is parallel to or perpendicular to a first direction, which is parallel to the first surface or the fourth surface.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: May 29, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Yoshiaki Hashimoto
  • Patent number: 8179357
    Abstract: In a semiconductor circuit a floating node is set to any voltage by utilizing a control signal applied to a refresh terminal and has a period shorter than that of a clock signal. The circuit includes first and second transistors connected between a first clock terminal and first power supply terminal, third and fourth transistors connected between the refresh terminal and the first power supply terminal, and fifth and sixth transistors connected between a second power supply terminal and the first power supply. Gates of the fourth and fifth transistors are connected to an input terminal, a gate of the third transistor is connected to a second clock terminal, a gate of the first transistor is connected to a node between the fifth and sixth transistors, gates of the second and sixth transistors are connected, and a node between the first and second transistors is connected to an output terminal.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: May 15, 2012
    Assignee: NLT Technologies, Ltd.
    Inventor: Tomohiko Otose