Patents Assigned to NEC Display Solutions, Ltd.
  • Patent number: 10460646
    Abstract: A display system that can solve the problem of an inadequate band in a connector or transmission path and that enables processing of a high-resolution image signal, includes a display device and an electronic apparatus that is electrically connected to the display device via a connector. The electronic apparatus receives or generates an original image signal indicating an original image that is to be displayed and supplies a plurality of divided image signals each indicating a respective image of a plurality of partial images into which the original image has been divided. The display device displays the original image on the basis of a combined image signal into which the plurality of partial image signals supplied from the electronic apparatus have been combined.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 29, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Yutaka Arai
  • Patent number: 10452335
    Abstract: A display system includes an arrangement of a plurality of display apparatuses. Each of the plurality of display apparatuses includes a display panel that displays an image, a processor configured to process the image for display, a memory storing the image information for processing by the processor to display on the display panel, and a send and receive hardware interface that at least receives setting information of one of the plurality of display apparatuses. A first display apparatus of the plurality of display apparatuses displaying an arrangement image, the first display apparatus further comprises a coordinate acquiring hardware that acquires a coordinate in the first display apparatus, the coordinate specifies a position of a second display apparatus of the plurality of display apparatuses displayed in the arrangement image, and a first send and receive hardware interface of the first display apparatus receives setting information of the second display apparatus.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 22, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Tomohiro Mihara
  • Patent number: 10438384
    Abstract: An image display system includes: a display device; a detecting device for detecting a position pointed by an input device, on a display screen of the display device; and a display control device that, in accordance with a drawing on the display screen using the input device, causes the display device to display an image corresponding to the drawing in conformity with a setting corresponding to the position on the display screen at which the drawing has been started. The settings are different from each other depending on the areas on the display screen defined by multiple reference points provided thereon.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: October 8, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Michio Tomizawa, Koichi Ara
  • Patent number: 10430268
    Abstract: An operations management system, including a memory configured to store program instructions and a plurality of analytical models respectively used for detection of anomaly in a plurality of targets, and a processor configured to execute the program instructions including an order controller configured to control an processing order of the detection of anomaly performed by the operation management system to be the same as a descending order of score of anomaly of the plurality of targets, and an analyzer configured to detect, in the processing order, anomaly in each of the plurality of targets.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: October 1, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Yosuke Nonogaki
  • Patent number: 10412341
    Abstract: An image display device includes a communication device transmits a transmission request to each of the image transmission devices and receives a frame including differential data transmitted by each image transmission device in response to the transmission request. A measurement unit measures, for each image transmission device, a first required time interval, which is the time required from the start of transmission of the transmission request until the start of reception of the frame, and a second required time interval, which is the time required from the start of reception until the completion of reception of the frame. A control unit causes transmission requests to be sent to each of the image transmission devices at predetermined transmission intervals, causes measurement unit to measure the first and second required time intervals, and changes the transmission interval of the transmission request based on the measurement results.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: September 10, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Eisaku Ishii
  • Patent number: 10409149
    Abstract: A phosphor wheel has a phosphor-supporting surface on which is formed a phosphor that generates fluorescent light in response to the incidence of light; and a reflecting surface that reflects the incident light, the phosphor-supporting surface and the reflecting surface being formed both to be parallel to each other to have a distance between them in the perpendicular direction of each surface.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: September 10, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Noriko Nagase
  • Patent number: 10404977
    Abstract: Provided is a display device that has a usage validity period and confirms that the device is within the usage validity period when it is used, and can be improved in usefulness and can be used quickly, as well as a usage management method and program for the display device. The display device includes: a real-time clock; and, a control unit that, upon receiving a video display-ON signal for turning on video display under the condition that the status of the real-time clock is invalid, displays video corresponding to an input video signal.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: September 3, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Michio Yoshino, Masakazu Kobayashi
  • Patent number: 10373582
    Abstract: Display control device 100 in the present invention includes: memory 101 that stores an image signal input from a signal source; controller 102 that determines the number of output frames based on an input vertical synchronizing signal input from the signal source, the output frames being frames to be displayed on a display in one cycle of the input vertical synchronizing signal, and that determines a dot number in an output horizontal period such that a gap between an output frame line number of a predetermined output frame and the output frame line number of a different output frame in a period corresponding to one cycle of the input vertical synchronizing signal is smaller than a predetermined threshold, the output horizontal period being one cycle of an output horizontal synchronizing signal, the output frame line number being the number of output horizontal periods corresponding to the output frame; and output section 103 that reads the image signal from storage 101 depending on the dot number determined
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: August 6, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Tatsuo Kimura
  • Patent number: 10339898
    Abstract: An image display device having a display panel, the device being utilized to form an image display system in which a plurality of the image display devices are arrayed in one or both of vertical and horizontal directions to display one image as a whole while an image allocated to each device is displayed via the corresponding display panel, the image display device includes a reading processing unit that reads out image information and delays start of output of this image information by a predetermined period of time determined based on the number of the image display devices which forms the image display system and a row to which the present device belongs in the vertical arrangement.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 2, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Tomohiro Mihara, Tatsuo Nishimata
  • Patent number: 10331274
    Abstract: A light source includes an invisible light emitter that emits an invisible light beam and a visible light emitter that emits a visible light beam. A light source controller causes the light source to emit at least one light beam from among the invisible light beam and the visible light beam. A propagation controller causes an emission light beam emitted from the light source to propagate along a predetermined plane.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: June 25, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Ryoji Takahashi
  • Patent number: 10304365
    Abstract: An image correction device includes: a first target unevenness characteristic calculation unit that calculates a first target unevenness characteristic based on a first uncorrected unevenness characteristic and a correction amount, the first uncorrected unevenness characteristic being an uncorrected unevenness characteristic at a first gradation, the uncorrected unevenness characteristic being a characteristic of brightness unevenness of a display panel when uncorrected, the correction amount being calculated based on a backlight drive value and a black level; a second target unevenness characteristic calculation unit that calculates a second target unevenness characteristic based on a second uncorrected unevenness characteristic and the backlight drive value, the second uncorrected unevenness characteristic being the uncorrected unevenness characteristic at a second gradation; and a correction data generation unit that generates correction data for each gradation for correcting an image signal, based on the
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: May 28, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Katsuyuki Matsui
  • Patent number: 10297183
    Abstract: A display device, comprising: a display panel; a driver configured to drive the display panel based on a video signal; and a detector configured to obtain a first detection value by detecting reflective light from a reflective media, which occurs when ambient light is irradiated to the reflective media, while obtaining a second detection value by detecting reflective light from the reflective media, which occurs when the display panel irradiates display light to the reflective media.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 21, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Naoki Itakura
  • Patent number: 10288873
    Abstract: A phosphor wheel is obtained by providing a phosphor on a rotatable substrate. The phosphor is formed of a plurality of small pieces, and the small pieces are arranged such that the phosphor has a ring shape, or a shape obtained by cutting away a portion from a ring shape about an axis of rotation of the substrate.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: May 14, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Atsushi Kato
  • Patent number: 10281805
    Abstract: An image display device includes: a light source unit that sequentially supplies light of a plurality of colors; an image formation unit that is provided with a pixel region that is made up of a plurality of pixels, light of a plurality of colors supplied by the light source unit sequentially irradiating the pixel region, and images of a plurality of colors being sequentially formed by the modulation of the incident light by each of the pixels; and a controller that controls the image-forming operation of the image formation unit. The controller causes formation of images of at least one color among the plurality of colors with pixel combinations made up of a plurality of pixels as pixel units and individually controls each pixel that make up the pixel combinations.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: May 7, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Atsushi Kato, Tomohiro Nakagawa
  • Patent number: 10284828
    Abstract: A projection-type display system has: a light-emitting wheel that, by rotating, sequentially supplies light excited by light emitted from a light source and transmitted or reflected light of light that is emitted by the light source; a color separation wheel that, by rotating, sequentially color-separates and supplies light output of the light-emitting wheel; an image-forming element that, in accordance with a picture signal, performs light modulation of the light supplied by the color separation wheel; a light detection unit that detects the light that has undergone light modulation; and control units that adjust the light modulation and rotation timing of the light-emitting wheel after adjusting the light modulation and rotation timing of the color separation wheel.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 7, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Michio Kobayashi
  • Patent number: 10268435
    Abstract: A display device includes a network unit including a first port that is connectable to a control computer or a display device on a prior stage in a daisy chain manner and a second port that is connectable to a display device on a subsequent stage in the daisy chain manner, and a storage unit that stores addresses of display devices, as transmission sources, transmitted from one or each of the display devices at subsequent stages of a daisy chain connected via the second port in response to a request to search for a plurality of display devices as targets for determining display device IDs thereof the plurality of display devices being connected to the control computer in the daisy chain manner, the request being transmitted from the control computer to the plurality of display devices, where the addresses are received by the network unit.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 23, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Masayuki Terao
  • Patent number: 10268109
    Abstract: A field sequential type projector comprises: a plurality of light sources that output primary color lights each having a peak wavelength in a primary color wavelength region, the primary color lights having different peak wavelengths in the primary color wavelength region; an illumination optical system that includes a video image formation device that spatially modulates the primary color lights output from the plurality of light sources to form an image light, and guides the primary color lights output from the plurality of light sources to the video image formation device; and a projection optical system that projects the image light formed by the video image formation device.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 23, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Osamu Wakabayashi
  • Patent number: 10262625
    Abstract: A display device includes: a first detection unit that detects an external signal from a second external device via a second connection unit, and outputs a first detection result indicating presence of an external signal; and a control unit that determines whether the second external device is connected with a second input unit based on the first detection result, and performs control so that a video signal to be supplied to a display unit is switched from a first video signal to a second video signal to cause the display unit to display an image based on the second video signal in a case where the control unit that determines that the second external device is connected with the second input unit.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 16, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Masatoshi Abe
  • Patent number: 10257480
    Abstract: A projection display apparatus that can prevent deviation in the light quantity distribution of the projected image is provided. A projection display apparatus includes: a light source unit including a light emitting element; an image light generator modulating light from the light source unit to emit image light; a projecting unit projecting the image light; a polarization modulator on which the image light is made incident and that emits light in a particular polarization state; and a depolarizer arranged on the optical path between the light emitting element and the polarization modulator.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: April 9, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Shinichiro Chikahisa
  • Patent number: 10210816
    Abstract: An image display apparatus (and a method for dimming a light source) includes a light source and display units that spatially modulate a light from the light source on the basis of an input video signal to form an image, and performs dimming control to adjust luminance of the light source in stages. The image display apparatus includes a light source dimming unit that determines whether to perform dimming control on the basis of the input video signal, acquires a dimming rate, which is a ratio of brightness of an input image to a maximum luminance output from the light source, and sets the output of the light source to the maximum luminance output when a dimming rate of a frame immediately before a frame determined not to be subjected to dimming control is lower than a threshold.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: February 19, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Takeshi Morimoto