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: 20200159083
    Abstract: Brightness in total internal reflection image displays comprising of a color filter array may be enhanced by tuning the size and shape of the convex protrusions. Each protrusion or group of two or more protrusions may be aligned with a color filter sub-pixel such as red, green or blue, and with a thin film transistor. Each protrusion or group of two or more protrusions may be tuned to a specific size and shape with respect to the color filter sub-pixel it may be aligned with on a pixel by pixel basis. This may enhance the reflectance at the wavelength matching the desired color of the respective pixel.
    Type: Application
    Filed: July 9, 2018
    Publication date: May 21, 2020
    Applicant: ClearInk Displays, Inc.
    Inventors: Graham Beales, Lorne A. Whitehead, Bram M. Sadlik, Robert J. Fleming
  • Publication number: 20200073152
    Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 5, 2020
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. WHITEHEAD, Gregory John WARD, Wolfgang STUERZLINGER, Helge SEETZEN, Don GRAHAM
  • Patent number: 10540932
    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: December 10, 2018
    Date of Patent: January 21, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Helge Seetzen, Gregory John Ward, Wolfgang Heidrich
  • Patent number: 10416480
    Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: September 17, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Wolfgang Stuerzlinger, Helge Seetzen, Don Graham
  • Patent number: 10373574
    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: February 26, 2018
    Date of Patent: August 6, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Lorne A. Whitehead, Gregory John Ward, Louis D. Silverstein, Helge Seetzen
  • Publication number: 20190222814
    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: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Helge SEETZEN, Lorne A. WHITEHEAD, Gregory John WARD
  • Publication number: 20190174683
    Abstract: A device includes a connected array of cells formed in a stack of flexible sheets. Each pair of adjacent sheets in the stack includes a first sheet and a second sheet bonded together at multiple bond locations. Each sheet has an electrically conductive layer disposed on an electrically non-conductive layer, the conductive layer comprising an electrically conductive non-metal material. Each pair of adjacent sheets in the stack is arranged so that the non-conductive layer of each first sheet is between the conductive layers of the first and second sheets. The cells of the array reversibly transition between an open state and a closed state in response to an electric potential having a magnitude greater than a threshold value applied between the conductive layers of the first and second sheets.
    Type: Application
    Filed: November 16, 2018
    Publication date: June 13, 2019
    Inventors: Ranjith Divigalpitiya, Lorne A. Whitehead
  • Patent number: 10304394
    Abstract: A high efficiency, long life, video rate, electrophoretic display comprises fluid containing sub-pixel structures that are periodic, and aligned with a color filter array. A fluid comprising of electrophoretically mobile particles is compartmentalized at the size scale of the individual filters (one per filter) such that the particles may be moved to either allow light to be returned through the same filter back towards the viewer by total internal reflection (TIR) or conventional reflection to create a light state or to be absorbed by the particles to create a dark state. High reflectance is achieved through the use of structures that avoid ITO layers in the light path and reflecting most light, by virtue of a dual control of light by TIR and transmission to a reflector. In one embodiment the structures are in the shape of truncated pyramids.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 28, 2019
    Assignee: CLEARink Displays, Inc.
    Inventor: Lorne A. Whitehead
  • 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