Patents Assigned to Tianma Japan, Ltd.
  • Patent number: 10096214
    Abstract: A circuit of a tactile presentation device is configured to: connect first electrodes at least partially included in a target area to an AC voltage signal source and connect second electrodes at least partially included in the target area to another AC voltage signal source to present tactile senses in the target area; and in transition from a frame to the next frame, turn each of multiple first electrodes including the first electrodes and multiple second electrodes including the second electrodes into a floating state and subsequently connect each of the multiple first electrodes and the multiple second electrodes to a voltage signal source. A time to keep the floating state is set shorter than a first period for unnecessary tactile senses presented outside the target area to be weaker than unnecessary tactile senses presented outside the target area in the first period.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: October 9, 2018
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Daisuke Sugimoto, Hiroshi Haga
  • Patent number: 10088905
    Abstract: The tactile sense presentation device, capable of effectively presenting a tactile sense (a sense of texture) on a touch panel, includes: a supporting substrate; a plurality of X-electrodes and Y-electrodes extended in parallel to each other on the supporting substrate; and driving circuits (X-electrode driving circuit, Y-electrode driving circuit) which apply a first-frequency voltage signal to the X-electrode corresponding to information regarding a target region inputted from outside among the plurality of X-electrodes, and applies a second-frequency voltage signal to the Y-electrode corresponding to information regarding the target region inputted from outside among the plurality of Y-electrodes to generate electric beat oscillation in the target region by an absolute value of a difference between the first and second frequencies.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 2, 2018
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Hiroshi Haga, Jiro Yanase, Daisuke Sugimoto
  • Publication number: 20180188547
    Abstract: A substrate laminating apparatus, including a first vacuum chamber including a first opening; a first table provided inside the first opening for holding a first substrate; a second vacuum chamber including a second opening; a second table provided inside the second opening for holding a second substrate, wherein the substrates are laminated by reducing a pressure in a closed space formed by having the first opening faced with the second opening. The apparatus also includes a vacuum evacuation unit connected to the first vacuum chamber or the second vacuum chamber and performs reduced-pressure evacuation of the closed space. When there is a direction along which priority is given on lamination precision when laminating the first and second substrates, and the direction is defined as a lamination precision priority direction, a reduced-pressure evacuation direction done by the vacuum evacuation unit is a direction different from the lamination precision priority direction.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 5, 2018
    Applicant: Tianma Japan, Ltd.
    Inventors: Tetsuroh ASAKURA, Koji SHIGEMURA
  • Publication number: 20180164614
    Abstract: In a liquid crystal display apparatus in which a first substrate and a second substrate are disposed in parallel to each other through a liquid crystal layer, a liquid crystal molecule in the liquid crystal layer is rotated in a plane parallel to the first substrate and the second substrate by driving voltage applied to the liquid crystal layer. A voltage value corresponding to a maximum gradation value of the driving voltage applied to the liquid crystal layer is a driving voltage value at which transmittance peaks based on V-T characteristics in an inclination direction inclined from a normal direction of a display surface of the liquid crystal display apparatus to a direction in which a refractive index of the liquid crystal layer is maximum.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 14, 2018
    Applicant: Tianma Japan, Ltd.
    Inventor: Hidenori IKENO
  • Publication number: 20180166585
    Abstract: The oxide semiconductor thin film transistor includes a source electrode and a drain electrode; a channel layer formed of an oxide semiconductor; a first insulating film; a first gate electrode formed on a surface side opposing a first channel region which is formed on an interface between the channel layer and the first insulating film; a second insulating film; and a second gate electrode formed on a surface side opposing a second channel region which is formed on an interface between the channel layer and the second insulating film, and in a case where a length of an apposition direction of the source electrode and the drain electrode in the first channel region is set to a first channel length, and a length of a apposition direction in the second channel region is set to a second channel length, the second channel length is shorter than the first channel length, and a potential applied to the second gate electrode is greater than or equal to a lower potential of potentials of the source electrode and the
    Type: Application
    Filed: December 1, 2017
    Publication date: June 14, 2018
    Applicant: Tianma Japan, Ltd.
    Inventor: Kazushige TAKECHI
  • Publication number: 20180159069
    Abstract: A folding type display apparatus, which includes a first flexible substrate including a laminate of an inorganic film and an organic film; a sheet-shaped display section formed over the first flexible substrate and having flexibility, the sheet-shaped display section including a plurality of organic electro luminescence (EL) elements and a plurality of switching elements; and a second flexible substrate including a laminate of an inorganic film and an organic film and formed over the sheet-shaped display section, wherein the first and second flexible substrates include a plurality of the laminates respectively, and the inorganic films and the organic films are alternately laminated in the plurality of laminates.
    Type: Application
    Filed: January 12, 2018
    Publication date: June 7, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventor: Yojiro MATSUEDA
  • Publication number: 20180143691
    Abstract: A tactile presentation device 10 comprises: a substrate 13; a plurality of wirings 11 extending on the substrate 13; a first insulating layer 14 formed on the substrate 13 and covering the wirings 11; a plurality of electrodes 12 disposed on the first insulating layer 14; a second insulating layer 15 covering the electrodes 12; and a drive circuit selectively applying a voltage signal to the electrodes 12 through the wirings 11, based on a control signal input from the outside. Each of the wirings 11 is electrically connected to one of the electrodes 12 via a through hole opened in the first insulating layer 14. At least one of the electrodes 12 presents tactile sense to a user who touches the second insulating layer 15 over the electrode 12 while the voltage signal is being applied. Each of the wirings 11 is partly covered with at least one of the electrodes 12.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 24, 2018
    Applicant: Tianma Japan, Ltd.
    Inventors: Takuya ASAI, Hiroshi HAGA
  • Publication number: 20180143721
    Abstract: A display device includes an insulating substrate, an encapsulation structural unit opposed to the insulating substrate, lower electrodes and one upper electrode disposed between the insulating substrate and the encapsulation structural unit, and organic light-emitting layers each disposed between the one upper electrode and one of the lower electrodes, perforating walls standing toward the encapsulation structural unit, circuits formed between the insulating substrate and the lower electrodes to control supply of electric current to the lower electrodes, and touch panel electrodes formed between the insulating substrate and the lower electrodes. The upper electrode is an electrode configured to transmit light from the organic light-emitting layers toward the encapsulation structural unit and has holes each formed in such a manner that one of the perforating walls stands through the hole. Electric fields generated by the touch panel electrodes pass through the holes in the upper electrodes.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 24, 2018
    Applicant: Tianma Japan, Ltd.
    Inventors: Yojiro MATSUEDA, Kenichi TAKATORI
  • Publication number: 20180122297
    Abstract: To prevent image retention, the pixel circuit includes: a light emitting element; a driving transistor which supplies an electric current according to an applied voltage to the light emitting element; a capacitor part which holds the voltage containing a threshold voltage and a data voltage of the driving transistor; and a switch part which has the voltage containing the threshold voltage and the data voltage held to the capacitor part and applies the voltage to the driving transistor. Further, the switch part has a function which applies a constant voltage to the driving transistor before having the voltage containing the threshold voltage and the data voltage held to the capacitor part.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Applicant: Tianma Japan, Ltd.
    Inventors: Yoshihiro NONAKA, Yojiro MATSUEDA, Kenichi TAKATORI
  • Publication number: 20180089967
    Abstract: A circuit of a tactile presentation device is configured to: connect first electrodes at least partially included in a target area to an AC voltage signal source and connect second electrodes at least partially included in the target area to another AC voltage signal source to present tactile senses in the target area; and in transition from a frame to the next frame, turn each of multiple first electrodes including the first electrodes and multiple second electrodes including the second electrodes into a floating state and subsequently connect each of the multiple first electrodes and the multiple second electrodes to a voltage signal source. A time to keep the floating state is set shorter than a first period for unnecessary tactile senses presented outside the target area to be weaker than unnecessary tactile senses presented outside the target area in the first period.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Daisuke SUGIMOTO, Hiroshi HAGA
  • Publication number: 20180063518
    Abstract: The stereoscopic image display device which displays images corresponding to each of a plurality of viewpoints includes: a stereoscopic image display panel which includes a display panel in which a plurality of pixels are arranged and a light-ray separating module provided on the display panel for separating parallax images from each of the pixels towards a plurality of N-viewpoints (N is a natural number of 2 or larger) according to the layout direction of each of the pixels; an observer position measuring unit which measures an observing position of the observer who is facing the display surface; a relative position calculating unit which calculates a relative position of the observer with respect to the stereoscopic image display panel based on the measurement result; and an image generation processing unit which generates viewpoint image by corresponding to the relative position and outputs the image towards the stereoscopic image display panel.
    Type: Application
    Filed: October 19, 2017
    Publication date: March 1, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventor: Koji SHIGEMURA
  • Publication number: 20180059462
    Abstract: A display apparatus comprises a display device, a functional substrate opposed to and bonded to the display device through an air space and, at peripheral borders on the opposite surfaces of the display device and the functional substrate, first resin maintaining the distance between the display device and the functional substrate and second resin adhering the display device and the functional substrate to each other.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Yoshiro KITAGAWA, Hitoshi YOSHIDA, Akira FUJITA
  • Publication number: 20180040845
    Abstract: Provided is a display apparatus that compensates a drive transistor threshold to attain a highly precise structure. The display apparatus comprises a light emitting element including a first electrode, a second electrode and an organic light emitting layer disposed between the first electrode and the second electrode, and a pixel circuit including a capacitor and a drive transistor letting current according to voltage of the capacitor flow in the light emitting element. The pixel circuit stops supply of current to the light emitting element while connecting the capacitor to the first electrode.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Yoshihiro NONAKA, Jiro YANASE, Kenichi TAKATORI
  • Publication number: 20180040684
    Abstract: A display apparatus includes: pixels arrayed in a non-rectangular display region in a first direction and a second direction; a scan line extending in the first direction and connected to a first pixel group extending in the first direction; an intersecting scan line including a first wiring and a second wiring, the first wiring extending in the first direction and connected to a second pixel group extending in the first direction, the second wiring extending in the second direction; a data line extending in the second direction and connected to a third pixel group extending in the second direction; a scan circuit group in a first side portion of an outer circumferential side of the display region and facing the scan line, and configured to output a scan signal to the scan line and to output a scan signal to the first wiring via the second wiring; and a data signal circuit group in a second side portion of the outer circumferential side and facing the first side portion, and configured to output a data signal
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Yojiro MATSUEDA, Kenichi TAKATORI
  • Patent number: 9880395
    Abstract: Movement of a display device is detected, and an image is displayed in stereoscopic display or planar display depending on the detected movement.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: January 30, 2018
    Assignees: NEC CORPORATION, Tianma Japan, Ltd.
    Inventors: Tetsusi Sato, Koji Shigemura, Masahiro Serizawa