Patents Assigned to NLT Technologies, Ltd.
  • Patent number: 10291021
    Abstract: A protection circuit includes a control circuit that controls current between a first wiring and a second wiring and an application circuit that applies a voltage to the control circuit. The control circuit includes a first thin film transistor that controls the current. The application circuit includes second and third thin film transistors that are connected in series. Each of the second and third thin film transistors includes first and second gates. The first gate of the second thin film transistor is connected to the first wiring. The first gate of the third thin film transistor is connected to a connection point between the second and third thin film transistors. The second gates of the second thin film transistor and the third thin film transistor are connected to the second wiring. The application circuit applies a voltage of the connection point to a gate of the first thin film transistor.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: May 14, 2019
    Assignee: NLT Technologies, Ltd.
    Inventors: Hiroyuki Sekine, Yusuke Yamamoto
  • Patent number: 10234709
    Abstract: Provided is a display apparatus or the like based on a housing-in technique capable of improving display quality and yield. A display apparatus comprises an upper-lower substrate 100, a display module 103 including a housing 102 with an opening, a resin member 105 formed on the upper-lower substrate 100 along an entire periphery of an opening of the housing 102, and a front panel 106 opposed to the display module 103 across the resin member 105. The housing 102 is so placed as to be interposed between the upper-lower substrate 100 and the front panel 106. A worked surface 500 is located at a part of a ridge line of a boundary part of the housing 102. The resin member 105 is in contact with the entire periphery of the boundary part of the housing 102 and hangs over the inner edge of the upper surface of the housing 102.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 19, 2019
    Assignee: NLT Technologies, Ltd.
    Inventors: Akira Banjouya, Akira Suzuki
  • Patent number: 10109696
    Abstract: A display apparatus includes: a light emitting device in which a first electrode, a light emitting layer, and a second electrode are laminated; a pixel circuit, which is arranged on a lower side of the light emitting device, having a drive transistor including a source electrode connected to the first electrode and controlling a current supplied to the light emitting device; a first metal plate and a second metal plate arranged to face the light emitting layer across the first electrode; and a first insulating layer arranged between the first electrode and both the first metal plate and the second metal plate. The first metal plate is connected to a gate electrode of the drive transistor, the second metal plate is connected to a first voltage line, and the first metal plate and the second metal plate are arranged on the same plane face.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: October 23, 2018
    Assignee: NLT Technologies, Ltd.
    Inventors: Buxiang Zhang, Yoshihiro Nonaka
  • Patent number: 10054828
    Abstract: A liquid crystal display apparatus comprises a first planar electrode, a first insulator layered over an upper surface of the first planar electrode, a planar pixel electrode layered over an upper surface of the first insulator, a second insulator layered over an upper surface of the pixel electrode, a second planar electrode that covers the pixel electrode and that is layered over an upper surface of the second insulator, and a liquid crystal layer disposed over an upper surface of the second planar electrode.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 21, 2018
    Assignee: NLT Technologies, Ltd.
    Inventor: Hideki Ito
  • Patent number: 9995986
    Abstract: There is provided a light control element including a transparent conductive film, a proton accumulation layer on the transparent conductive film, an inorganic electrolyte layer on the proton accumulation layer, an organic electrolyte layer on the inorganic electrolyte layer, a catalyst layer on the organic electrolyte layer, and a light control mirror layer on the catalyst layer.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 12, 2018
    Assignee: NLT Technologies, Ltd.
    Inventors: Ayuko Imai, Ken Sumiyoshi
  • Patent number: 9904080
    Abstract: There is such an issue with the well-known optical element that it is difficult to achieve a high transmittance since the transmittance is determined according to the pattern size of the light transmission regions, so that the luminance of the display device to which such optical element is mounted is deteriorated. Provided is an optical element which employs a structure in which the shape of a conductive pattern where electrophoretic particles cohere in a wide viewing field mode is formed in a comb-like shape and plural stages and plural rows of light transmission regions are disposed in the spaces between the comb teeth. This makes it possible to exclude the electrophoretic particles from the regions other than the comb-like electrode for allowing the light to transmit that part.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: February 27, 2018
    Assignee: NLT Technologies, Ltd.
    Inventor: Kunihiro Shiota
  • Patent number: 9859391
    Abstract: Provided is an oxide semiconductor thin film transistor with low parasitic capacitance and high reliability. A thin film transistor includes a substrate, an oxide semiconductor layer including a channel region, a source region, and a drain region, a gate insulating film, and a gate electrode. The gate insulating film includes one layer or two layers, at least one of the layers of the gate insulating film is a patterned gate insulating film located at a position separated from the source electrode and the drain electrode. A length of a lower surface of the patterned gate insulating film in a channel length direction is greater than a length of a lower surface of the gate electrode in the channel length direction. The length of the lower surface of the patterned gate insulating film in the channel length direction is greater than a length of the channel region in the channel length direction. The source region and the drain region have a higher hydrogen concentration than the channel region.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 2, 2018
    Assignee: NLT Technologies, Ltd.
    Inventor: Jun Tanaka
  • Publication number: 20170255067
    Abstract: An LCD apparatus includes a first planar electrode, a first insulator layered over an upper surface of the first planar electrode, a planar pixel electrode layered over an upper surface of the first insulator, a second insulator layered over an upper surface of the pixel electrode, a second planar electrode that covers the pixel electrode and that is layered over an upper surface of the second insulator, and a liquid crystal layer disposed over an upper surface of the second planar electrode. The second planar electrode includes an aperture portion including a first and second region integrated with a first region, the first region overlaps with both the first planar electrode and the pixel electrode, the second region overlaps with the first planar electrode and does not overlap with the pixel electrode.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 7, 2017
    Applicant: NLT Technologies, Ltd.
    Inventor: Hideki ITO
  • Publication number: 20170236886
    Abstract: The object is providing an organic light emitting display device achieving a narrow bezel. A display device 10 has a first substrate 11, a second substrate 12, a sealant 25 sealing between the substrates, a display unit 15 including pixel circuits, a driving circuit 20 including a transistor for driving the pixel circuits, a first wiring unit for supplying voltage to the transistor, and a second wiring unit connecting between the transistor and the first wiring unit. The driving circuit 20 is disposed outside the display unit 15, the first wiring unit is disposed between the display unit 15 and the driving circuit 20, the display unit 15 and the first wiring unit are disposed between the first substrate 12 and the second substrate 12, the melting point of a second metal constituting the second wiring unit is higher than that of a first metal constituting the first wiring unit.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 17, 2017
    Applicant: NLT Technologies, Ltd.
    Inventor: Yojiro MATSUEDA
  • Publication number: 20170186832
    Abstract: A display apparatus includes: a light emitting device in which a first electrode, a light emitting layer, and a second electrode are laminated; a pixel circuit, which is arranged on a lower side of the light emitting device, having a drive transistor including a source electrode connected to the first electrode and controlling a current supplied to the light emitting device; a first metal plate and a second metal plate arranged to face the light emitting layer across the first electrode; and a first insulating layer arranged between the first electrode and both the first metal plate and the second metal plate. The first metal plate is connected to a gate electrode of the drive transistor, the second metal plate is connected to a first voltage line, and the first metal plate and the second metal plate are arranged on the same plane face.
    Type: Application
    Filed: December 28, 2016
    Publication date: June 29, 2017
    Applicant: NLT Technologies, Ltd.
    Inventors: Buxiang ZHANG, Yoshihiro NONAKA
  • Publication number: 20170117705
    Abstract: A protection circuit includes a control circuit that controls current between a first wiring and a second wiring and an application circuit that applies a voltage to the control circuit. The control circuit includes a first thin film transistor that controls the current. The application circuit includes second and third thin film transistors that are connected in series. Each of the second and third thin film transistors includes first and second gates. The first gate of the second thin film transistor is connected to the first wiring. The first gate of the third thin film transistor is connected to a connection point between the second and third thin film transistors. The second gates of the second thin film transistor and the third thin film transistor are connected to the second wiring. The application circuit applies a voltage of the connection point to a gate of the first thin film transistor.
    Type: Application
    Filed: October 21, 2016
    Publication date: April 27, 2017
    Applicant: NLT Technologies, Ltd.
    Inventors: Hiroyuki SEKINE, Yusuke YAMAMOTO
  • Patent number: 9516298
    Abstract: In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2×2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 6, 2016
    Assignee: NLT Technologies, Ltd.
    Inventors: Shin-ichi Uehara, Naoyasu Ikeda, Nobuaki Takanashi
  • Publication number: 20160351097
    Abstract: An image update determining unit compares a previously set temperature with a temperature estimated by a temperature increase estimating unit, and determines whether or not an image update operation is executable, and an image update interval is appropriately set according to the estimated temperature by performing image update on an image to be displayed next when the image update determining unit determines the image update operation to be executable but not performing image update when the image update determining unit determines the image update operation to be non-executable.
    Type: Application
    Filed: May 31, 2016
    Publication date: December 1, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Tetsushi SATO, Kazunori MASUMURA, Koji SHIGEMURA
  • Patent number: 9489903
    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: March 2, 2012
    Date of Patent: November 8, 2016
    Assignee: NLT Technologies, Ltd.
    Inventors: Kenichi Takatori, Hiroshi Haga
  • Publication number: 20160293659
    Abstract: Provided are an image sensor and a method of manufacturing method of manufacturing the image sensor. The image sensor includes a substrate, photoelectric transducers and switching elements formed in layers on the substrate in this order. Each of the photoelectric transducers includes a hydrogenated amorphous silicon layer. Each of the switching elements includes an amorphous oxide semiconductor layer. The image sensor further includes a blocking layer arranged between the hydrogenated amorphous silicon layers of the photoelectric transducers and the amorphous oxide semiconductor layers of the switching elements, where the blocking layer suppresses penetration of hydrogen separated from the hydrogenated amorphous silicon layers.
    Type: Application
    Filed: June 22, 2016
    Publication date: October 6, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Hiroyuki SEKINE, Takayuki ISHINO, Toru UKITA, Fuminori TAMURA, Kazushige TAKECHI
  • Publication number: 20160282944
    Abstract: A tactile sense presentation device includes a panel that includes a support substrate, a plurality of electrodes, which are formed on the support substrate, extending in a predetermined direction, and an insulating layer covering the plurality of electrodes; and a drive unit that drives the panel, wherein a tactile sense is presented to an operator based on an electrostatic force generated between the electrodes and the operator by the drive unit applying a signal of a voltage to the electrode, a contact face of the insulating layer that is in contact with the operator has a surface roughness Ra of a predetermined range, and the voltage applied to the electrodes corresponding to an area in which the tactile sense is presented to the operator is a voltage corresponding to the surface roughness Ra of the contact face.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 29, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Hiroshi HAGA, Daisuke SUGIMOTO
  • Publication number: 20160104413
    Abstract: Provided is a pixel array having a pixel arrangement structure in which a subpixel of the first color having the highest luminosity factor, a subpixel of the second color and a subpixel of the third color having the lowest luminosity factor are arranged in matrix, a row including the subpixel of the first color and the subpixel of the second color that are alternately arranged and a row including the subpixel of the first color and the subpixel of the third color that are alternately arranged are alternately arranged, and a column including the subpixel of the first color and the subpixel of the second color that are alternately arranged and a column including the subpixel of the first color and the subpixel of the third color that are alternately arranged are alternately arranged.
    Type: Application
    Filed: October 8, 2015
    Publication date: April 14, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Yojiro MATSUEDA, Kenichi TAKATORI, Yoshihiro NONAKA
  • Publication number: 20160079393
    Abstract: Provided are a display apparatus and a manufacturing method of the same. The display apparatus includes: a counter substrate, and an active matrix substrate including a pixel area. The active matrix substrate includes, in a non-transmissive region of each pixel, a transparent substrate, a polycrystalline silicon film, a gate insulating film, a gate electrode, an interlayer insulating film, and a drain layer including patterned conductive films, and includes, in a transparent region of each pixel, the transparent substrate, the gate insulating film and the interlayer insulating film. The interlayer insulating film includes zones where the interlayer insulating film is thinner than a part of the interlayer insulating film at the middle of each transmissive region. The zones are each located so as to extend between the neighboring patterned conductive films and are further located so as not to overlap with the transmissive regions and regions laid over LDD portions of the polycrystalline silicon film.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 17, 2016
    Applicant: NLT Technologies, Ltd.
    Inventors: Jun TANAKA, Nobuya SEKO, Kenichi HAYASHI
  • Publication number: 20150286105
    Abstract: Provided is a liquid crystal display device and a method for producing the same, wherein one electrode is composed of four segmented electrodes (P1, P2, P3, P4) and has segmented orientations (O1, O2, O3, O4), and the segmented electrode (p4) has the same structure as that of segmented electrodes (P?4) of adjacent pixels (at three positions of right, below, and lower right). An area surrounding four segmented electrodes (P4 (P?4)) that are present in adjacent four pixels having the same structure is processed with the same segmented orientation (O4). With this configuration, excellent viewing angle properties are maintained even with high-definition pixels, and efficient processing with segmented orientations can be performed.
    Type: Application
    Filed: October 22, 2012
    Publication date: October 8, 2015
    Applicant: NLT Technologies, Ltd.
    Inventors: Mitsuhiro Sugimoto, Ken Sumiyoshi, Shinichi Nishida, Hidenori Ikeno, Hideki Ito
  • Publication number: 20150261042
    Abstract: Provided are a surface light-emitting device and a liquid crystal display apparatus. The surface light-emitting device includes: a casing; one or plural point light sources arranged on a bottom surface of the casing; a first diffusion member arranged to be separated from the one or plural point light sources; a reflection plate capable of transmitting light and arranged between the one or plural point light sources and the first diffusion member; and a second diffusion member adjacent to the reflection plate. In the reflection plate, through holes are formed in a region corresponding to each of the one or plurality of point light sources. The through holes in the region are located at the right above position of the corresponding point light source and positions surrounding the right above position such that the through hole located farther from the right above position has a greater opening size.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Applicant: NLT Technologies, Ltd.
    Inventor: Hiroki SUGAYA