Patents Assigned to MicroDisplay Corporation
  • Patent number: 7292214
    Abstract: A method for operating a display having a plurality of pixel elements includes applying a transition voltage to the plurality of pixel elements, applying a first paint voltage to one pixel element of the plurality pixel elements, waiting a predetermined time period, illuminating the one pixel element, applying the transition voltage to the plurality of pixel elements, applying a second paint voltage to the one pixel element elements, waiting the predetermined time period, and illuminating the one pixel element. The transition voltage is different from the first paint voltage applied to the one pixel element.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: November 6, 2007
    Assignee: Microdisplay Corporation
    Inventors: Michael Bolotski, David Huffman
  • Publication number: 20070188718
    Abstract: Methods and systems for multiple primary color display are provided. Methods and systems of the present invention improve the spectrum efficiency of a color display system, and provide enhanced brightness and color gamut. In an embodiment, methods and systems of the present invention improve the brightness of a color display system employing a high pressure lamp by efficiently incorporating lights components of the lamp output that are outside the red, green, and blue spectrum in creating the color image.
    Type: Application
    Filed: February 13, 2006
    Publication date: August 16, 2007
    Applicant: MicroDisplay Corporation
    Inventor: Long Yang
  • Publication number: 20070188524
    Abstract: A method of illuminating a pixel on a display to a desired brightness level that includes dividing a time required to reach a maximum brightness level into one or more time slices, varying a pixel voltage associated with the pixel according to a sequence of voltage values over the one or more time slices, and gradually increasing the brightness of the pixel according to the pixel voltage.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 16, 2007
    Applicant: MicroDisplay Corporation
    Inventor: Michael Bolotski
  • Patent number: 6801285
    Abstract: A projection mode microdisplay includes a silicon substrate having disposed thereon a first alignment layer having a first alignment direction, and a cover substrate having disposed thereon a second alignment layer having a second alignment direction. A liquid crystal material having spacers disbursed therethrough is disposed between to maintain the cell gap which is about 1.2 microns. The first and second alignment directions form about a 27 degree twist angle. An electrode disposed on the cover substrate and the silicon substrate are connected to a control system that sequentially applies an electric field across the cell gap to control the orientation of the liquid crystal material. A retarder is disposed on the cover substrate and has an alignment direction that is at −38 degrees ±5 degrees with respect to an x-axis of the display, wherein the liquid crystal material has a turn-on time no greater than 1.0 milliseconds and a turn-off time no greater than 4.0 milliseconds.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: October 5, 2004
    Assignee: Microdisplay Corporation
    Inventors: Hongqin Shi, Mary Lou Jepsen
  • Patent number: 6567061
    Abstract: A method for operating a display having substrates and a plurality of capacitors formed at predetermined locations between the substrates includes measuring a capacitance for each of the plurality of capacitors, determining a cell gap for each of the plurality of capacitors in response to the capacitance for each of the plurality of capacitors, determining a cell gap relationship between the substrates in response to the cell gap for each of the plurality of capacitors and in response to the predetermined locations on the display, and determining a first intensity compensating value for a first pixel on an active region of the display in response to the cell gap relationship between the substrates and in response to a location of the first pixel on the display.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: May 20, 2003
    Assignee: MicroDisplay Corporation
    Inventors: Michael Bolotski, Phillip Alvelda
  • Patent number: 6108000
    Abstract: A system having a display including display circuitry operating at a resonant frequency includes a tunable component, a resonant driver circuit coupled to the tunable component and to the display circuitry, for driving the display circuitry at an output frequency, a power consumption sensor coupled to the resonant driver circuit, for determining the power consumption of the resonant driver circuit, and a control logic coupled to the tunable component and to the power dissipation sensor, for monitoring the power consumption of the resonant driver circuit and for tuning the tunable component in response to the power consumption.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: August 22, 2000
    Assignee: MicroDisplay Corporation
    Inventors: Michael Bolotski, Phillip Alvelda