Patents Assigned to MicroDisplay Corporation
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Patent number: 7292214Abstract: 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: GrantFiled: January 10, 2000Date of Patent: November 6, 2007Assignee: Microdisplay CorporationInventors: Michael Bolotski, David Huffman
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Publication number: 20070188718Abstract: 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: ApplicationFiled: February 13, 2006Publication date: August 16, 2007Applicant: MicroDisplay CorporationInventor: Long Yang
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Publication number: 20070188524Abstract: 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: ApplicationFiled: February 9, 2007Publication date: August 16, 2007Applicant: MicroDisplay CorporationInventor: Michael Bolotski
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Patent number: 6801285Abstract: 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: GrantFiled: January 14, 2003Date of Patent: October 5, 2004Assignee: Microdisplay CorporationInventors: Hongqin Shi, Mary Lou Jepsen
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Patent number: 6567061Abstract: 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: GrantFiled: April 12, 2000Date of Patent: May 20, 2003Assignee: MicroDisplay CorporationInventors: Michael Bolotski, Phillip Alvelda
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Patent number: 6108000Abstract: 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: GrantFiled: March 4, 1998Date of Patent: August 22, 2000Assignee: MicroDisplay CorporationInventors: Michael Bolotski, Phillip Alvelda