Using Solid-state Color Display Devices (epo) Patents (Class 348/E9.024)
  • Patent number: 11521292
    Abstract: Apparatus, methods, and program products for preventing data snipping are disclosed. One apparatus includes a processor and a memory that stores code executable by the processor. The code is executable by the processor to partition an electronic image into a plurality of graphics frames for display on a display device, wherein each separate graphics frame in the plurality of graphics frames includes a different portion of the electronic image, and transmit each separate graphics frame of the plurality of graphics frames to the display device, wherein each separate graphics frame in the plurality of graphics frames is separately transmitted to the display device for display thereon within each display cycle. Methods and computer program products that perform the operations and/or functions of the apparatus are also disclosed.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: December 6, 2022
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: David W. Douglas, Adam Jerome Cavenaugh, Kenneth Seethaler
  • Patent number: 10195890
    Abstract: A secure lens sheet or layer suitable for use in a micro-optic system, which is made up of a plurality of joined fine lens arrays (e.g., joined fine lenticular and/or joined fine non-cylindrical lens arrays), is provided. Each array has a lens pitch different from adjacent or contiguous arrays and/or is orientated in a direction different from adjacent or contiguous arrays. A micro-optic security device, which utilizes the inventive secure lens sheet and one or more overlying or underlying arrangements of micro-sized image icons (e.g., line data), is also provided. The image icon arrangement(s) and the secure lens layer are configured such that one or more synthetic images are projected by the security device. These projected images may show a number of different optical effects.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: February 5, 2019
    Assignee: Crane Security Technologies, Inc.
    Inventor: Paul F. Cote
  • Patent number: 10185153
    Abstract: A system to adjust light path length comprising a digital light path length modulator is described. The digital light path length modulator comprises a polarization modulator to receive polarized light and to modulate a polarization of some or all of the polarized light, and an optical path length extender (OPLE) to direct the light entering the OPLE with a first polarization along a first light path through the OPLE, and to direct the light entering the OPLE with a second polarization along a second light path through the OPLE, the second light path through the OPLE having a light path length longer than the first light path length through the OPLE.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: January 22, 2019
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Warren Cornelius Welch, III
  • Patent number: 9977246
    Abstract: An image combiner, also referred to as a combiner optic, of a near-eye display system or the like transmits enough light so a user can see remote objects in a “world view”, while also reflecting enough light so the user can simultaneously see a projected image in a “projected” (augmented) view. The disclosed image combiners use two partial reflectors configured to form a wedged reflective cavity. In the display system, light from an imaging device follows a path to the user's eye that includes three reflections in the wedged cavity. By using this capability of the wedged cavity, the combiner optic can have a substantially reduced thickness, and lower profile, than a combiner optic that uses only one partial reflector and only one reflection in the optical path.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 22, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Erin A. McDowell, Timothy L. Wong
  • Patent number: 7767479
    Abstract: Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, the light generated from the stack of diodes is emitted perpendicular to the plane of the imager device via a plurality of vertical waveguides that are coupled to the optical confinement regions of each of the multiple laser diodes comprising the imager device. Each of the laser diodes comprising a single pixel is individually addressable, enabling each pixel to simultaneously emit any combination of the colors associated with the laser diodes at any required on/off duty cycle for each color. Each individual multicolor pixel can simultaneously emit the required colors and brightness values by controlling the on/off duty cycles of their respective laser diodes.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: August 3, 2010
    Assignee: Ostendo Technologies, Inc.
    Inventors: Hussein S. El-Ghoroury, Robert G. W. Brown, Dale A. McNeill, Huibert DenBoer, Andrew J. Lanzone
  • Patent number: 7391486
    Abstract: In a liquid crystal display device, a field sequential liquid crystal display device includes a liquid crystal panel having an upper substrate, a lower substrate and a liquid crystal layer therebetween; a backlight device under the liquid crystal panel for irradiating light to the liquid crystal panel and having three color light sources; and an image signal processor controlling a sequential lighting order and combination of the three color light sources.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: June 24, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Hyung-Ki Hong