Patents Assigned to Pure Depth Limited
  • Patent number: 10726609
    Abstract: A multi-layer display may include a first screen and a second screen arranged in a substantially parallel manner, with the first screen and the second screen including an array of pixels and the second screen overlapping the first screen, a light configured to provide light to the first screen and the second screen of the multi-layer display system, and a processing system comprising at least one processor and memory. The processing system may be configured to apply perspective distortion to automatically bake the desired aspects of perspective into a physically thin object. To achieve this, the object's vertices are moved along lines drawn through a fixed point in space (a primary viewpoint). From this viewpoint, regardless of any perspective distortion applied, the object will appear to not change.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: July 28, 2020
    Assignee: Pure Depth Limited
    Inventor: Austin F. O'Brien
  • Patent number: 10684491
    Abstract: A multi-display system (e.g., a display including multiple display panels) includes at least first and second displays (e.g., display panels or display layers) arranged substantially parallel to each other in order to display three-dimensional (3D) features to a viewer(s). An optical element(s) such as at least a refractive beam mapper (RBM) is utilized in order to reduce moiré interference.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 16, 2020
    Assignee: Pure Depth Limited
    Inventors: Gareth P. Bell, Darryl Singh
  • Patent number: 9519154
    Abstract: A display device is described and includes a first display screen including a mask pattern of a pixel. The display device includes a second display screen including the mask pattern, wherein the second display screen is located further from a front of the display device than the first display screen, wherein the front of the display device is closest to a viewer. The display device includes a diffraction element configured to copy the mask pattern of the second display screen into one or more viewable copies in order to minimize moiré interference with the mask pattern of the first display screen.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: December 13, 2016
    Assignee: Pure Depth Limited
    Inventor: Gareth Bell
  • Patent number: 8941691
    Abstract: A method, system, computer software and display for generating and displaying a target image (14) on a multi-layered display (1). The target image (14) includes a graphical object (9) displayed on a first display layer (2) of the multi-layered display (1) and contextual elements (10) displayed on a second display layer (3). The graphical object (9) is provided with a peripheral boundary region (12) composed of contextual elements (10) displayed on the second display layer (3). A projection of the peripheral boundary region (12) on the first display layer (2) demarcates a silhouette (11) on the second display layer (3).
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: January 27, 2015
    Assignee: Pure Depth Limited
    Inventor: James Baron
  • Patent number: 8928682
    Abstract: Image processing may be performed to generate a color image for display on a color display screen and a monochrome image for display on a monochrome display screen, where an overlap of the images may produce a resultant color image at one or more depths. The one or more depths may be determined by an amount of blur applied to one image and an amount of sharpness applied to other. The one or more depths may be determined by a gamma value of the monochrome image. Since the monochrome display screen may have fewer or no color filters and/or a lower resolution, the monochrome display screen may pass more light than conventional color display screens. As such, less light can be used to illuminate color images displayed at different depths using a color display screen and a monochrome display screen, thereby reducing energy consumption of the display device.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: January 6, 2015
    Assignee: Pure Depth Limited
    Inventors: Gareth P Bell, Darryl Singh, Hayden James Rosser
  • Patent number: 8687149
    Abstract: A method of adapting a visual unit having a first screen (10) in a first focal plane by the addition of one or more at least partially transparent display screens (20) at least partially overlapping said first screen (10) and located in focal planes distinct from said first focal plane, characterized in that an at least partially transparent emissive layer (21) is provided between said first screen (10) and at least one said additional display screen (20).
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 1, 2014
    Assignee: Pure Depth Limited
    Inventors: Gareth Paul Bell, Gabriel Damon Engel
  • Patent number: 8436873
    Abstract: The invention relates to a method of manipulating the visibility of image elements on the screens of a multi-screen display. In particular, methods of maximising the visibility of selected target image elements are identified.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: May 7, 2013
    Assignee: Pure Depth Limited
    Inventor: Hongzhi Gao
  • Patent number: 8432411
    Abstract: A method, computer-usable medium, and system for processing graphical data for display on a multi-component display is disclosed. Embodiments improve the display quality of multi-component displays by modifying graphical data to preemptively compensate for distortion caused by interstitial layers and/or display screens of the multi-component display, thereby enabling display of graphical objects from multi-component displays with improved optical characteristics. For example, where components of a multi-component display blur displayed images, graphical data used to display graphical objects may be modified to sharpen the graphical objects before display. The pre-sharpening amplifies the high frequency components of the displayed graphical objects to compensate for the dampening caused by passing the graphical objects through the components of the multi-component display.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: April 30, 2013
    Assignee: Pure Depth Limited
    Inventors: Gareth Paul Bell, Daniel E. Evanicky, Edward Maurice Granger
  • Patent number: 8416149
    Abstract: A method of controlling brightness, color, hue, color temperature, gamma response or contrast of at least one image for display on a multi-layer display device characterized by carrying out the steps of: receiving said at least one image(s) to be displayed, detecting the brightness, color, hue, color temperature, gamma response or contrast of said image(s) to be displayed, determining the transmissivity of each layer of the multi layer display device in the localized area of said image(s) to achieve the brightness, color, hue, color temperature, gamma response and/or contrast detected or received, communicating the determined transmissivity of each layer of the multi layer display device in the localized area of said image(s) to a display device or storage device. A software device designed to do the same and a display device which can be utilized to controlling brightness, color, hue, color temperature, gamma response or contrast of at least one image.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: April 9, 2013
    Assignee: Pure Depth Limited
    Inventor: Daniel E. Evanicky
  • Patent number: 8154473
    Abstract: A display control system for a multi-layer display system including at least one multi-layer display unit (6). A multi-layer display unit includes multiple stacked or overlapped display layers (1a, 1b, 1c, 14, 15) each adapted to render display elements (2, 16B, 17B, 18B) thereon for viewing through the uppermost display layer. The level of difficulty for a user to view an overlapped image differs depending on the colour, brightness or type of images (for example text-on-text) being displayed and also the layer in which the image is being displayed and whether the image is currently active. At least any overlapping portion of display elements from different display layers are adjusted (automatically or by a user) in order to improve the viewing experience for a viewer. Types of adjustment possible include moving the images within their display layer or to an alternative display layer or altering their visual properties (such as colour, brightness, contrast etc).
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: April 10, 2012
    Assignee: Pure Depth Limited
    Inventors: Gabriel Damon Engel, David John Ferguson, Hamish John Ogilvie MacLeod, Bruce David Seymour
  • Patent number: 8154691
    Abstract: A matte surface of a display screen is converted to an optically flat surface, for example, via an epoxy resin coating or the like which has a refractive index equal to that of the matte surface. A film with a substantially flat surface may be applied to the matte surface. Alternatively, the matte surface may be removed from the screen, and replaced with an optically smooth surface. The matte surface may be a diffusive surface formed on a birefringent film of an LCD screen. The display screen is the front screen of a multilevel three-dimensional display comprising layered screens, and altering the surface from matte to flat reduces the blurring of displayed images.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: April 10, 2012
    Assignee: Pure Depth Limited
    Inventor: Mark John Searle
  • Patent number: 7439683
    Abstract: A circuit board on which the electronic components providing power to a series of light sources is positioned as near as possible to light sources in order to minimize parasitic energy losses which would be introduced by lengths of wiring. The light sources are usually elongate tubular Cold Cathode Fluorescent Tubes arranged parallel to one another in a single plane and the circuit board may be mounted directly over the light sources, towards one end of the tubes. Standard PCB board-to-board connectors may be provided at an edge of the circuit board and a further circuit board provided with a series of conductive tracks may provide both a mechanical and electrical connection between the circuit board and the light sources. A power distribution method is also disclosed in which both current and temperature of the light sources are monitored and regulated in order to extend the lifetime of the light sources and to stabilize their brightness.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: October 21, 2008
    Assignee: Pure Depth Limited
    Inventors: James Stephen Emslie, Richard William Pease