Patents by Inventor Lorne A. Whitehead

Lorne A. Whitehead has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190137667
    Abstract: Maximizing brightness in conventional total internal reflection image displays may lead to more applications where they may be used. A refractive index perturbation array may be used to enhance the brightness. Control of the size, spacing and refractive index in an index perturbation array layer may lead controlled diffraction of light and lead to enhanced brightness in total internal reflection image displays.
    Type: Application
    Filed: June 8, 2017
    Publication date: May 9, 2019
    Applicant: CLEARink Displays, Inc.
    Inventors: Alex Henzen, Lorne A. Whitehead
  • Publication number: 20190114977
    Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
    Type: Application
    Filed: December 10, 2018
    Publication date: April 18, 2019
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. WHITEHEAD, Helge SEETZEN, Gregory John WARD, Wolfgang HEIDRICH
  • Patent number: 10264225
    Abstract: A backlight for a display comprises a plurality of independently controllable light sources and inclined surfaces inclining in a radially outward direction from each light source for shaping the distribution of emitted light. The light sources may each comprise a group of differently-colored light emitters. The backlight may include light integrators configured to mix light of the differently-colored light emitters. Inclined surfaces for shaping the distribution of emitted light may be arranged around exits of the light integrators.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: April 16, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Helge Seetzen, Lorne A. Whitehead, Gregory John Ward
  • Patent number: 10261405
    Abstract: A locally dimmed display has a spatial light modulator illuminated by a light source. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: April 16, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Wolfgang Stuerzlinger, Helge Seetzen
  • Patent number: 10261221
    Abstract: Corner cubes are well known retro-reflective devices. Corner cubes may be employed for high brightness in reflective image displays. An embodiment of a reflective image display is disclosed that employs corner cubes with metallized surfaces. Light reflection and absorption may be modulated with electrophoretically mobile light absorbing particles or electrofluidic systems. Display images may be created to convey information to a viewer.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: April 16, 2019
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Publication number: 20190107765
    Abstract: Reflective image displays use minimal power but have limited use in low ambient conditions. Emissive image displays are intrinsically reflective and must use significantly more power in high ambient light conditions to optimize the image quality which greatly limits the battery life. To date no single display technology has been able to provide excellent image quality in all ambient lighting conditions. The embodiments described herein involves the efficient hybridization of controlled reflection with controlled efficient emission to improve both the practicality and the overall performance of the display.
    Type: Application
    Filed: May 23, 2017
    Publication date: April 11, 2019
    Applicant: CLEARink Displays Inc.
    Inventors: Lorne Whitehead, Robert J. Fleming
  • Publication number: 20190049814
    Abstract: Brightness in total internal reflection image displays may be enhanced by addition of a plurality of light reflecting particles. The particles may be charged, uncharged or weakly charged. The particles may be designed such that they do not enter the evanescent wave region and frustrate TIR when near the surface of the convex protrusions but be close enough to reflect light rays that pass through the dark pupil region to enhance brightness.
    Type: Application
    Filed: February 24, 2017
    Publication date: February 14, 2019
    Applicant: ClearINK Displays Inc.
    Inventor: Lorne A. Whitehead
  • Patent number: 10203436
    Abstract: A reflective image display comprising of a reflection enhancing layer comprising of a plurality of approximately spherical indentations is placed adjacent a sheet comprising of a plurality of hemispherical protrusions. The radii of curvature of the spherical indentations substantially coincides with the center of curvature of the adjacently located hemispheres to enhance the white paper-like appearance of the display while efficiently enabling optional color filters to yield saturated color.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 12, 2019
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Patent number: 10186211
    Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the—display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 22, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Helge Seetzen, Gregory John Ward, Wolfgang Heidrich
  • Publication number: 20180364543
    Abstract: Brightness in conventional total internal reflection image displays may decrease due to incident light passing through the dark pupil region in the white state. Adding sub-wavelength structures to the surface of the convex protrusions on the transparent front sheet may increase brightness in the white state. Control of the size, spacing, shape and refractive index of the sub-wavelength structures may lead to zeroth order reflection and enhanced brightness.
    Type: Application
    Filed: December 6, 2016
    Publication date: December 20, 2018
    Applicant: CLEARink Displays, Inc.
    Inventors: Lorne A. Whitehead, Bram M. Sadlik, Graham F. Beales
  • Publication number: 20180274289
    Abstract: A variable thermal insulation assembly includes at least one array comprising a plurality of sheets of film, wherein the plurality of sheets are in a stacked arrangement and each sheet is bonded to an adjacent sheet along a plurality of longitudinally extending regions such that each pair of adjacent sheets form a plurality of longitudinally extending cavities between adjacent regions of the adjacent sheets, a support frame comprising end elements, wherein the support frame frames the plurality of sheets, wherein support frame is coupled to the array to support the array such that the array may transition between an expanded state in which the array is expanded, and a compressed state in which the array is compressed, within the plane of the frame along the direction perpendicular to the longitudinal axis such that the longitudinally extending cavities are expanded or compressed, wherein in the expanded state, the front edge conforms to one of the second end of the support frame or a second front edge of a se
    Type: Application
    Filed: September 9, 2016
    Publication date: September 27, 2018
    Inventors: Lorne WHITEHEAD, Michele MOSSMAN, Jon SCOTT, Namamrta MUSTERER, Wesley BOWLEY, Debbie EELTINK, Laura Megan OGILVIE
  • Publication number: 20180190215
    Abstract: Dual modulator displays are disclosed incorporating a phosphorescent plate interposed in the optical path between a light source modulation layer and a display modulation layer. Spatially modulated light output from the light source modulation layer impinges on the phosphorescent plate and excites corresponding regions of the phosphorescent plate which in turn emit light having different spectral characteristics than the light output from the light source modulation layer. Light emitted from the phosphorescent plate is received and further modulated by the display modulation layer to provide the ultimate display output.
    Type: Application
    Filed: February 26, 2018
    Publication date: July 5, 2018
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Louis D. Silverstein, Helge Seetzen
  • Publication number: 20180182310
    Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the—display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 28, 2018
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Helge Seetzen, Gregory John Ward, Wolfgang Heidrich
  • Patent number: 9964269
    Abstract: Apparatuses, systems, and methods in which reflective slats are configured to redirect light received from various sun positions are provided. The slats or mirrored array could be coupled to a base of the redirector, such that an adjustment of an angle of the base relative to the horizontal adjusts an angle of each slat relative to the horizontal. In some aspects, an algorithm can be used to determine the angle of tilt that maximizes the transmission efficiency for the mirror array.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: May 8, 2018
    Assignee: The University of British Columbia
    Inventors: Allen Upward, Lorne Whitehead
  • Patent number: 9939706
    Abstract: A brightness enhancing structure for a reflective display incorporates a transparent sheet having an inward hemispherical surface, a backplane electrode, an apertured membrane between the hemispherical surface and the backplane electrode, and a light reflecting electrode on an outward side of the membrane. A voltage source connected between the electrodes is switchable to apply a first voltage to move the particles inwardly through the apertured membrane toward the backplane electrode, and a second voltage to move the particles outwardly through the apertured membrane toward the light reflecting electrode. Movement of the particles toward the light reflecting electrode frustrates total internal reflection of light rays at the hemispherical surface.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 10, 2018
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Patent number: 9934733
    Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the—display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: April 3, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Helge Seetzen, Gregory John Ward, Wolfgang Heidrich
  • Patent number: 9911389
    Abstract: Dual modulator displays are disclosed incorporating a phosphorescent plate interposed in the optical path between a light source modulation layer and a display modulation layer. Spatially modulated light output from the light source modulation layer impinges on the phosphorescent plate and excites corresponding regions of the phosphorescent plate which in turn emit light having different spectral characteristics than the light output from the light source modulation layer. Light emitted from the phosphorescent plate is received and further modulated by the display modulation layer to provide the ultimate display output.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: March 6, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Louis D. Silverstein, Helge Seetzen
  • Patent number: 9897890
    Abstract: Reflective image display architecture embodiments are disclosed comprising a perforated continuous reflective sheet. The perforated continuous sheet comprises a coating that provides a threshold to particle movement. The coating may be designed to provide a passive or electro-active physical barrier. The coating improves bistability of the display.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: February 20, 2018
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • Publication number: 20180039169
    Abstract: A locally dimmed display has a spatial light modulator illuminated by a light source. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 8, 2018
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Wolfgang Stuerzlinger, Helge Seetzen
  • Patent number: 9810943
    Abstract: Parallax in an optical device is reduced by apply one or a combination of several disclosed techniques, including reduced solid angle or increased collimation of light sources, increased diffusion/scattering at an output of the device, and/or reflective structures for collimation and containment of reflected light. The techniques are advantageously applied to a backlight LCD display, and particularly to high dynamic range dual modulation displays.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: November 7, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Vincent Kwong, Helge Seetzen, Gregory John Ward