Patents Assigned to Japan Display West Inc.
  • Patent number: 9019258
    Abstract: Provided is a display device including a pixel array forming by arranging a plurality of pixels whose display grayscale are controlled according to a pixel signal written, a signal line drive unit that outputs a pixel signal, to a plurality of signal lines, with a polarity according to a polarity signal, a scan line drive unit that drives the plurality of signal lines and performs a writing of the pixel signal output to the signal line into the pixels, a polarity signal generation unit that generates the polarity signal instructing the polarity of the pixel signal to be reversed, and supplies the result to the signal line drive unit, and a frame cycle set unit that generates the vertical start pulse in such a manner that a period of the number of vertical clocks that is not a multiple of the N is one frame period.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: April 28, 2015
    Assignee: Japan Display West Inc.
    Inventor: Kunio Enami
  • Patent number: 9013667
    Abstract: A liquid crystal display device includes: a pair of substrates that are bonded together with a sealing member having a closed loop shape that is formed around a display region with a space maintained from the display region; and a liquid crystal layer that is disposed between the pair of substrates so as to maintain a cell gap of a predetermined thickness, wherein, between the display region and the sealing member, a cell thick area, in which a cell gap larger than the cell gap of the display region is formed, is formed.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: April 21, 2015
    Assignee: Japan Display West Inc.
    Inventor: Hayato Kurasawa
  • Patent number: 8994759
    Abstract: A display capable of performing optimum stereoscopic display according to a view position is provided. A display includes: a display section including a plurality of first pixels to a plurality of nth pixels, where n is an integer of 4 or more, and displaying a plurality of perspective images assigned to the first to nth pixels; a detection section detecting a view position of a viewer; and a display control section varying the number of the plurality of perspective images assigned to the first to nth pixels and varying a correspondence relationship between the first to nth pixels and the perspective images, according to the view position of the viewer.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 31, 2015
    Assignee: Japan Display West Inc.
    Inventor: Goro Hamagishi
  • Patent number: 8994668
    Abstract: Disclosed herein is an electrooptic device having an input function including: an electrooptic panel; a touch panel having an input position detecting electrode in an input area aligned to an image display area of the electrooptic panel; and a wiring board connected to any one of the electrooptic panel and the touch panel, the wiring board having a touch sensor located outside the input area of the touch panel as viewed from an input surface of the touch panel.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: March 31, 2015
    Assignee: Japan Display West Inc.
    Inventor: Atsushi Yoshiyama
  • Patent number: 8997211
    Abstract: A display apparatus includes an input section that inputs input information representing an input operation from an operation means contacting a touch screen, a display section that refers to an authentication table correlating the input operation with a display image so as to display the display image on the touch screen, and an authentication processing section that refers to the authentication table so as to determine whether or not a combination of a display image displayed on the touch screen and an input operation represented by the input information input by the input section in a state where the display image is being displayed is correlated in the authentication table, and authenticates an input action by the input operation when the combination is correlated in the authentication table.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: March 31, 2015
    Assignee: Japan Display West Inc.
    Inventor: Hiroaki Hirose
  • Patent number: 8988641
    Abstract: A liquid crystal display device includes a pair of substrates of which one substrate is provided with a plurality of scanning lines and a plurality of common wirings, a first insulation film covering the scanning lines, the common wirings, and the one substrate, a plurality of signal lines provided on the first insulation film, a thin film transistor provided near an intersection part of the scanning lines and the signal lines, a lower electrode formed below the first insulation film and connected to the common wirings, a second insulation film formed on surfaces of the thin film transistor, the signal lines, and the first insulation film, and an upper electrode formed on the second insulation film and having a slit, a display region in which the liquid crystal layer is driven by an electric field, and a non-display region that is formed outside the display region.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 24, 2015
    Assignee: Japan Display West Inc.
    Inventors: Takuo Kinoshita, Hiroyuki Ito
  • Patent number: 8982306
    Abstract: A display device includes: a pixel section provided between a pair of substrates and including plural pixels; one or plural active components disposed in a frame region around the pixel section on one substrate of the pair of substrates; an insulating film provided in the frame region on the one substrate to cover the one or plural active components; and a sealing layer provided to seal the pixel section and cover an end edge portion of the insulating film in the frame region.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 17, 2015
    Assignee: Japan Display West Inc.
    Inventors: Jun Yamaguchi, Morikazu Nomura, Takashi Fujimura
  • Patent number: 8976123
    Abstract: The display device with high detection accuracy includes: display pixel electrodes; a common electrode; a display function layer; a display control circuit performing image display control by applying a pixel voltage to each of the display pixel electrodes and applying a common drive voltage to the common electrode, the common drive voltage inverting in synchronization with a drive cycle of the image display control; a touch detection electrode cooperating with the common electrode to form a capacitor; and a touch detection circuit detecting an external proximity object, based on a detection signal obtained from the touch detection electrode in response to the common drive voltage applied to the common electrode. The touch detection circuit corrects the detection signal based on a gray scale of the image signal at the time of acquisition of the detection signal, and performs the detection operation.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: March 10, 2015
    Assignee: Japan Display West, Inc.
    Inventors: Kouji Noguchi, Takayuki Nakanishi, Koji Ishizaki, Takeya Takeuchi, Yasuyuki Teranishi
  • Patent number: 8976103
    Abstract: Disclosed herein is a display apparatus, including, a pixel section, a plurality of scanning lines, a plurality of signal lines, and a driving circuit.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Masumitsu Ino, Yasuhiro Ukai
  • Patent number: 8970505
    Abstract: Disclosed herein is a contact detecting device including: a contact responding section configured to produce an electric change in response to an object to be detected coming into contact with or proximity to a detecting surface; and a contact driving scanning section configured to scan application of driving voltage to the contact responding section in one direction within the detecting surface, and control output of the electric change in time series, wherein the contact driving scanning section performs a plurality of scans of different regions of the contact responding section in parallel with each other, and outputs a plurality of the electric changes in parallel with each other.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: March 3, 2015
    Assignee: Japan Display West, Inc.
    Inventors: Koji Noguchi, Takeya Takeuchi
  • Patent number: 8970461
    Abstract: Disclosed herein is a display including: a reflective image display section having pixels arranged in the display region; and a lighting device adapted to irradiate light to the image display section from diagonally in front, in which the light scattering characteristics in the display region are angle-dependent, and in which the lighting device irradiates light whose intensity distribution is adjusted so that when the display region displaying an image having an equal gray level is viewed from a given viewing position, the image luminance is uniform.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: March 3, 2015
    Assignee: Japan Display West Inc.
    Inventors: Tatsuya Yata, Kenji Tanase, Susumu Kimura, Takafumi Suzuki
  • Patent number: 8963880
    Abstract: A detection device that detects the approach of a conductor includes: a sensor section including transmission and reception electrodes, and detecting the approach of the conductor to an intersection point where the transmission and reception electrodes intersect with each other; a voltage generating section generating an alternating voltage in which a rise and a fall of a voltage value according to first and second slopes are alternately repeated; a current generating section applying the alternating voltage to the transmission electrode to generate, in the reception electrode, an alternating current having a uniform current value according to the first or second slope while the voltage value of the alternating voltage is rising or falling; a signal generating section generating a detection signal vibrating with an amplitude according to a distance between the intersection point and the conductor; and a detecting section detecting the approach of the conductor to the intersection point.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: February 24, 2015
    Assignee: Japan Display West Inc.
    Inventor: Toshihiko Tanaka
  • Patent number: 8953134
    Abstract: A liquid crystal display panel is provided and includes a pair of substrates facing each other with a liquid crystal layer therebetween. One of the substrates having, thereon, an upper electrode having a plurality of slits formed therein, a lower electrode facing the upper electrode with an insulating film therebetween and disposed so as to be adjacent to the substrate, and an alignment film formed so as to cover surfaces of the upper electrode and the insulating film. Each of the slits includes a linear portion disposed so as to be parallel to a liquid crystal alignment direction when no voltage is applied and two extension portions extending from both ends of the linear portion so that a distance between the two extension portions increases in a direction perpendicular to the linear portion while keeping a symmetrical shape with respect to the direction.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Shinichiro Nomura, Kimitaka Kamijo, Tae Nakahara
  • Patent number: 8952923
    Abstract: Provided is a touch-detection-function-attached display apparatus including: common-driving electrodes disposed in parallel to extend in one direction; a display device performing display based on pixel and display-driving signals; a touch-detection device detecting an externally-approaching object based on a touch-detection-driving signal; and a scan-driving unit performing a first-scan driving for sequentially-applying the display-driving signal to the common-driving electrodes in a time-division manner and a second-scan driving for sequentially-applying the touch-detection-driving signal to the common-driving electrodes in a time-division manner at a scan speed different from the first-scan-driving and applying a DC potential to the common-driving electrode which is not selected as an object of the first and second scan driving, wherein the touch-detection-driving signal includes a DC portion sustained at the DC potential in a time interval where the pixel signal is applied to the display device and a puls
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Hiroshi Mizuhashi, Yoshitoshi Kida
  • Patent number: 8953109
    Abstract: An image display apparatus including an image display section that displays a two-dimensional image; and a variable lens array that includes a first substrate having a first electrode, a second substrate having a second electrode, and a liquid crystal layer which is disposed between the first substrate and the second substrate. The value of the refractive power of each lens line thereof is changed by a voltage which is applied between the first electrode and the second electrode. The variable lens array is disposed to be opposed to the image display section. Wall-shaped or columnar spacers are provided in a place, in which an orientation direction of liquid crystal molecules of the liquid crystal layer is unchanged when the value of the refractive power of each lens line thereof is changed, between the first substrate and the second substrate of the variable lens array.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 10, 2015
    Assignee: Japan Display West Inc.
    Inventors: Daisuke Takama, Takeo Koito
  • Patent number: 8947334
    Abstract: The present disclosure provides a liquid crystal display device including: for each pixel, a first switching element provided in common for a plurality of subpixels making up a pixel, the first switching element having its one end connected to a signal line; for each pixel, a plurality of second switching elements one provided for each subpixel, each of the plurality of second switching elements being connected between the pixel electrode of one of the plurality of subpixels and the other end of the first switching element; and a drive section adapted to turn ON and OFF the plurality of second switching elements in sequence during the ON period of the first switching element and turn OFF the second switching element that turns ON last in sequence first, and then turn OFF the first switching element.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: February 3, 2015
    Assignee: Japan Display West Inc.
    Inventor: Yasuyuki Teranishi
  • Patent number: 8941805
    Abstract: Provided is a liquid crystal display device including: first and second substrates with a liquid crystal layer interposed therebetween; a first electrode formed on the liquid crystal layer side of the first substrate and having linear portions; a second electrode having linear portions formed along the linear portions of the first electrode and adjacent to the linear portions of the first electrode at a gap in plan view; and a third electrode formed on the liquid crystal layer side of the second substrate and having linear portions overlapping with the linear portions of the second electrode in plan view, wherein electric fields having different directions are generated between the first electrode and the second electrode and between the first electrode and the third electrode.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: January 27, 2015
    Assignee: Japan Display West Inc.
    Inventors: Joji Nishimura, Tatsuya Yata, Hayato Kurasawa
  • Patent number: 8933351
    Abstract: A display device includes: a plurality of drive electrodes; a plurality of detection electrodes intersecting the plurality of drive electrodes; and a scan driving unit performing a first scan drive and a second scan drive. The first scan drive allows a display drive signal for driving the display elements to be applied to each of the plurality of common drive electrodes, and the second scan drive allows a touch detection drive signal for detecting an external proximity object to be applied to each of the plurality of common drive electrodes.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: January 13, 2015
    Assignee: Japan Display West Inc.
    Inventors: Koji Noguchi, Yoshitoshi Kida, Takayuki Nakanishi
  • Patent number: 8933895
    Abstract: A display device with a touch detection function includes a plurality of common drive electrodes arranged side by side to extend in one direction, a display element performing display, based on a pixel signal and a display drive signal, a touch detection element of electrostatic capacitance type detecting an external proximity object based on a touch detection drive signal with an amplitude larger than that of the display drive signal, and a scan drive section performing first scan drive and second scan drive, the first scan drive allowing the plurality of common drive electrodes to be sequentially supplied with the display drive signal in a time-divisional manner, and the second scan drive allowing the plurality of common drive electrodes to be sequentially supplied with the touch detection drive signal in a time-divisional manner.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: January 13, 2015
    Assignee: Japan Display West Inc.
    Inventors: Takayuki Nakanishi, Yoshitoshi Kida, Koji Noguchi, Hiroshi Mizuhashi, Koji Ishizaki
  • Patent number: 8934073
    Abstract: A display device includes a display section in which a plurality of pixels are arrayed in a matrix, a plurality of scan lines which select pixels, a plurality of signal lines which supply image signals to the selected pixels, and color filters that are arranged so as to correspond to color displays of the pixels. In the device, the display section includes an effective pixel portion and a frame portion that surrounds the effective pixel portion, and the frame portion and a wiring circuit of the effective pixel portion are covered with light-shielding layers, the light-shielding layers being separated from each other at a certain separation location in the display section, and a plurality of color filters having different colors are arranged by being stacked at the separation location.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: January 13, 2015
    Assignee: Japan Display West Inc.
    Inventors: Kenta Seki, Seiji Uejima, Ryo Yamaoka, Hidemasa Yamaguchi