Patents Assigned to NEC DISPLAY SOLUTIONS
  • Patent number: 10529299
    Abstract: In a display device that is daisy-chained to a source device that outputs a video signal, and transmits an encryption key (KSV) used for encryption to source device, the display device includes storage to store the encryption key of an own display device (first device KSV), and the encryption keys (second device KSV, third device KSV) of all of downstream side display devices that are provided on a downstream side of the own display device among all of the other display devices that are daisy-chained, the encryption keys being transmitted to source device through its own display device when the display devices are daisy-chained to source device, and causes a display to form a split video image that is a part of a video image based on the number of splits of the video image corresponding to the video signal and the number of encryption keys stored.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: January 7, 2020
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Kazuma Sakagami
  • Patent number: 10527915
    Abstract: A laser light source includes; a plurality of laser devices that emit respectively different colors of laser light; a plurality of optical sensors that respectively detect the brightness of the plurality of colored lights; and a control unit that controls the brightness of each of the plurality of colored lights so that the detected values from the plurality of optical sensors become detection target values of brightness of the plurality of colored lights respectively corresponding to the brightness of synthesized light that is obtained by synthesizing the plurality of colored lights. If at least one of the detected values of the plurality of optical sensors cannot be controlled to be the detection target value, the control unit modifies all of the detection target values at the same proportion and controls the brightness of each of the plurality of colored lights to become the detection target values that were modified.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: January 7, 2020
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Tomoyuki Kaji
  • Patent number: 10499051
    Abstract: A display device includes: a video display unit, an optical detection unit that measures the display realized by the video display unit; and a control unit that, upon receiving a measurement start time at which the optical detection unit carries out measurement, turns on the power source of the video display unit a first predetermined time interval before the measurement start time, and causes the optical detection unit to perform the measurement at the measurement start time.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: December 3, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Masatoshi Abe
  • Publication number: 20190353991
    Abstract: A projector apparatus that can effectively reduce bending of a base plate supporting a lens shifting unit thereon and facilitates replacement of unit parts in the event of a failure is provided. The projector apparatus includes: a base plate attached inside a projector body; a lens supporting unit attached to the base plate and supporting a projection lens so as to be movable relative to the base plate; guiding mechanisms for guiding the lens supporting unit so as to be freely movable in a horizontal direction and a normal direction relative to the base plate; and fixing devices which fix the base plate to the projector body. The fixing devices include a plurality of first fixing devices provided at a peripheral edge of the base plate, and second fixing devices provided on an inner side of the plurality of first fixing devices.
    Type: Application
    Filed: November 2, 2017
    Publication date: November 21, 2019
    Applicants: THK CO., LTD., NEC DISPLAY SOLUTIONS, LTD.
    Inventors: Marie Shimamura, Jun Hirota, Hajime Fukushima, Kunitaka Furuichi
  • Patent number: 10481363
    Abstract: A projector including: a display unit equipped with an image-forming surface made up of a plurality of pixels; a projection lens that is capable of focus adjustment and that projects an image that is formed on the image-forming surface onto a projection surface; a distortion correction processing unit that, on the basis of distortion correction data for correcting distortion of an image projected onto the projection surface, generates a corrected image by enlarging and/or reducing an image indicated by an input video signal and forms the corrected image on the image-forming surface; and a control unit that adjusts the focus of the projection lens on the basis of the distortion correction data such that a focus range on the projection surface is increased.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: November 19, 2019
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Shigeru Fujino
  • 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: 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: 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: 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