Patents by Inventor Kalluri R. Sarma

Kalluri R. Sarma 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: 20160091715
    Abstract: A system and method of displaying a conformal-capable head-up display image is provided. Distortions caused by combiner curvature, for example, are removed by pre-distorting and projecting separate images for each eye. Shutter-based eyewear controls the visibility as the imagery is cycled, e.g., shuttered, between left and right eyes. The combined image generator, projector and eyewear system maintains minimal vergence errors, minimal dipvergence errors, acceptable average transmittance, and optionally, high conformality.
    Type: Application
    Filed: September 29, 2014
    Publication date: March 31, 2016
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Brent D. Larson, Kanghua Lu, Kalluri R. Sarma
  • Publication number: 20160003985
    Abstract: Apparatus for a smudge-resistant structure and related fabrication methods are provided. An exemplary smudge-resistant structure includes a transparent substrate having a macrostructured surface configured to reduce contact with the transparent substrate and an oxidizing layer overlying the macrostructured surface.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 7, 2016
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Kalluri R. Sarma, John F.L. Schmidt
  • Patent number: 9013562
    Abstract: Methods and systems are provided for presenting content comprising a plurality of frames using display panel comprising an array of display elements. A method comprises transferring image data for a first frame of the plurality of frames to a display element at the beginning of a first frame interval and activating an illumination assembly after transferring image data for the first frame to the display element to present the first frame. The method further comprises transferring image data for a second frame to an energy storage element corresponding to the display element during the first frame interval, and deactivating the illumination assembly prior to transferring the image data for the second frame from the energy storage element to the display element.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 21, 2015
    Assignee: Honeywell International Inc.
    Inventors: Kalluri R. Sarma, John F. L. Schmidt, Kanghua Lu
  • Patent number: 9007350
    Abstract: A display assembly includes a flexible sheet. The flexible sheet is formed of a flexible material supporting a first display panel and a second display panel. A mechanism is operatively connected to the flexible sheet. The mechanism moves the flexible sheet from a first position in which said first display panel may be viewed to a second position in which said second display panel may be viewed.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 14, 2015
    Assignee: Honeywell International Inc.
    Inventors: Roger W. Burgin, Dave Pepitone, Kalluri R. Sarma
  • Patent number: 8400391
    Abstract: Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes first and second video frames. Each video frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of the first video frame. The first light source is operated for a second duration during the first sub-frame of the second video frame. The second duration is different from the first duration.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 19, 2013
    Assignee: Honeywell International Inc.
    Inventors: John Schmidt, Kalluri R. Sarma, Dennis M. Davey
  • Publication number: 20130038584
    Abstract: A display assembly includes a flexible sheet. The flexible sheet is formed of a flexible material supporting a first display panel and a second display panel. A mechanism is operatively connected to the flexible sheet. The mechanism moves the flexible sheet from a first position in which said first display panel may be viewed to a second position in which said second display panel may be viewed.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Roger W. Burgin, Dave Pepitone, Kalluri R. Sarma
  • Patent number: 8269212
    Abstract: A pixel for an organic light emitting diode (OLED) display and a method for forming such a pixel is provided. The pixel includes a substrate, a transistor formed over the substrate, and an OLED formed over the substrate. The transistor includes a gate, a source, and a drain. The OLED includes an anode, an emissive layer formed over the anode, and a cathode formed over the emissive layer. The cathode is electrically connected to the drain of the transistor.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 18, 2012
    Assignee: Honeywell International Inc.
    Inventor: Kalluri R. Sarma
  • Patent number: 8259043
    Abstract: Apparatus, systems, and methods are provided for controlling the luminance of a display. One apparatus includes a pre-charge circuit configured to supply a pre-charge voltage to a column of LED pixels, a programming circuit configured to supply current to the column, and a switch configured to selectively couple the pre-charge circuit or the programming circuit to the column. A system includes an array of LED pixels arranged in a plurality of columns. A plurality of pre-charge circuits, each configured to selectively supply a pre-charge voltage to at least one column of pixels, and a plurality of current sources, each configured to selectively supply current to at least one column of pixels are also included. One method includes determining a pre-charge voltage for each of a plurality of columns based on a target luminance level selected from the plurality of luminance levels and supplying the determined pre-charge voltages to the columns.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: September 4, 2012
    Assignee: Honeywell International Inc.
    Inventors: John F. L. Schmidt, Kalluri R. Sarma, Jerry A. Roush
  • Patent number: 8243006
    Abstract: Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes a plurality of frames, and each frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of each of the plurality of frames. The second light source is operated for a second duration during the second sub-frame of each of the plurality of frames. The second duration is different than the first duration.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: August 14, 2012
    Assignee: Honeywell International Inc.
    Inventors: Kalluri R. Sarma, John F. L. Schmidt, Dennis M. Davey
  • Publication number: 20120140125
    Abstract: An overhead visor display system for an aircraft cockpit includes one or more transparent OLED visors. The visor may display text and images, such as aircraft flight or system data, navigational data, conformal images of actual views outside the aircraft, or may function as a sun shade. The visor may be rotated up towards the ceiling of the cockpit out of view. Optionally, the visors may be moved by a pilot on a rail from one side window to the front windscreen, and to the other side window.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Dave Pepitone, Kalluri R. Sarma, Sandy Wyatt
  • Publication number: 20110310234
    Abstract: Methods and systems are provided for presenting content comprising a plurality of frames using display panel comprising an array of display elements. A method comprises transferring image data for a first frame of the plurality of frames to a display element at the beginning of a first frame interval and activating an illumination assembly after transferring image data for the first frame to the display element to present the first frame. The method further comprises transferring image data for a second frame to an energy storage element corresponding to the display element during the first frame interval, and deactivating the illumination assembly prior to transferring the image data for the second frame from the energy storage element to the display element.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Kalluri R. Sarma, John F.L. Schmidt, Kanghua Lu
  • Patent number: 8063856
    Abstract: An active matrix display includes an annealed flexible dielectric substrate, a thin-film-transistor (TFT), a pixel electrode, and an interconnect. The annealed substrate includes at least a first surface and a second surface. The TFT is formed on the annealed flexible dielectric substrate first surface. The pixel electrode is formed on the annealed flexible dielectric substrate first surface. The interconnect is formed on the annealed flexible dielectric substrate, and includes a conductor having an interconnect contact and a pixel electrode contact formed thereon. The interconnect contact is electrically coupled to the TFT, and the pixel contact is electrically coupled to the pixel electrode.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 22, 2011
    Assignee: Honeywell International Inc.
    Inventors: Kalluri R. Sarma, Charles Chanley
  • Publication number: 20110242658
    Abstract: Methods and apparatus are provided for forming a smudge-resistant film structure that comprises a plurality of transparent inorganic surface structures overlying a transparent substrate. A method for forming the film structure comprises providing a transparent substrate and forming a plurality of transparent surface structures overlying the transparent substrate, wherein each of the transparent surface structures comprises an inorganic material.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 6, 2011
    Applicant: Honeywell International Inc.
    Inventor: Kalluri R. Sarma
  • Patent number: 7956831
    Abstract: Apparatus, systems, and methods are provided for dimming pixels on an active matrix light-emitting diode display. One apparatus includes an LED couplable between a voltage source and ground. First and second pulse-width modulation (PWM) drivers are also coupled to the LED. A system includes a plurality of LEDs forming a plurality of rows coupled between a voltage source and ground. A plurality of PWM drivers, each coupled to each of the LEDs in one of the plurality of rows, and a global PWM driver coupled to each of the plurality of LEDs in each of the plurality of rows are also included. One method includes providing current to each LED of a row of LEDs for a first portion of a cycle via a PWM driver, and providing current to each LED in the row for a second portion of the cycle via a different PWM driver.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 7, 2011
    Assignee: Honeywell Interntional Inc.
    Inventors: Jerry A. Roush, Kalluri R. Sarma, John F. L. Schmidt
  • Publication number: 20100276671
    Abstract: A pixel for an organic light emitting diode (OLED) display and a method for forming such a pixel is provided. The pixel includes a substrate, a transistor formed over the substrate, and an OLED formed over the substrate. The transistor includes a gate, a source, and a drain. The OLED includes an anode, an emissive layer formed over the anode, and a cathode formed over the emissive layer. The cathode is electrically connected to the drain of the transistor.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Kalluri R. Sarma
  • Patent number: 7759856
    Abstract: An organic light emitting diode (OLED) includes a relatively thin diamond-like carbon (DLC) layer disposed between the anode and the hole transport layer to improve luminous efficiency and operating life time. The relatively thin DLC layer inhibits hole injection, which balances charge flow and improves efficiency, and increases the surface smoothness of the anode, which contributes to the increased operating life time.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: July 20, 2010
    Assignee: Honeywell International Inc.
    Inventors: Kalluri R. Sarma, Xiaowei Sun, Baijun Chen
  • Publication number: 20090179848
    Abstract: Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes first and second video frames. Each video frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of the first video frame. The first light source is operated for a second duration during the first sub-frame of the second video frame. The second duration is different from the first duration.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 16, 2009
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: John Schmidt, Kalluri R. Sarma, Dennis M. Davey
  • Publication number: 20090128543
    Abstract: Methods and systems for displaying an image on a display device having first and second light sources are provided. A video signal is provided to the display device. The video signal includes a plurality of frames, and each frame includes first and second sub-frames corresponding to the respective first and second light sources. The first light source is operated for a first duration during the first sub-frame of each of the plurality of frames. The second light source is operated for a second duration during the second sub-frame of each of the plurality of frames. The second duration is different than the first duration.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 21, 2009
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: Kalluri R. Sarma, John F.L. Schmidt, Dennis M. Davey
  • Patent number: 7527994
    Abstract: The present invention provides amorphous silicon thin-film transistors and methods of making such transistors for use with active matrix displays. In particular, one aspect of the present invention provides transistors having a structure based on a channel passivated structure wherein the amorphous silicon layer thickness and the channel length can be optimized. In another aspect of the present invention thin-film transistor structures that include a contact enhancement layer that can provide a low threshold voltage are provided.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: May 5, 2009
    Assignee: Honeywell International Inc.
    Inventors: Kalluri R. Sarma, Charles S. Chanley
  • Publication number: 20080303804
    Abstract: Apparatus, systems, and methods are provided for controlling the luminance of a display. One apparatus includes a pre-charge circuit configured to supply a pre-charge voltage to a column of LED pixels, a programming circuit configured to supply current to the column, and a switch configured to selectively couple the pre-charge circuit or the programming circuit to the column. A system includes an array of LED pixels arranged in a plurality of columns. A plurality of pre-charge circuits, each configured to selectively supply a pre-charge voltage to at least one column of pixels, and a plurality of current sources, each configured to selectively supply current to at least one column of pixels are also included. One method includes determining a pre-charge voltage for each of a plurality of columns based on a target luminance level selected from the plurality of luminance levels and supplying the determined pre-charge voltages to the columns.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Applicant: HONEYWELL INTERNATIONAL, INC.
    Inventors: John F. L. Schmidt, Kalluri R. Sarma, Jerry A. Roush