Patents by Inventor Asad A. Khan

Asad A. Khan 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: 20100245221
    Abstract: This disclosure features an electronic display with overlayed electronic skin. The display includes an outer transparent display surface and can be placed in a dark state or in a bright state. The skin overlays the outer display surface and includes an electro-optic layer. Transparent electrically conductive layers are disposed on each side of the electro-optic layer. Electronic circuitry applies voltages to the electrically conductive layers enabling the electro-optic material of the electronic skin to be placed into a substantially transparent state and a reflective state. Images or colors can be displayed on the electronic skin while portions of the electronic skin are in the reflective state and light passing through the electronic skin is absorbed by the display in the dark state. When the display is in the bright state images or colors can be displayed on the display that can be seen through the electronic skin.
    Type: Application
    Filed: March 23, 2010
    Publication date: September 30, 2010
    Applicant: KENT DISPLAYS INCORPORATED
    Inventor: Asad KHAN
  • Patent number: 7796103
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: September 14, 2010
    Assignee: Kent Displays Incorporated
    Inventors: J. William Doane, Asad A. Khan, Irina Shiyanovskaya, Albert Green
  • Patent number: 7773064
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: August 10, 2010
    Assignee: Kent Displays Incorporated
    Inventors: J. William Doane, Asad A. Khan, Irina Shiyanovskaya
  • Publication number: 20100157180
    Abstract: A flexible liquid crystal display is provided wherein an addressable liquid crystal layer is disposed on a single flexible substrate so that the display itself will exhibit flexibility. The substrate is preferably a flexible non-transparent material and more preferably a drapable material such as fabric.
    Type: Application
    Filed: April 6, 2007
    Publication date: June 24, 2010
    Applicant: KENT DISPLAYS INCORPORATED
    Inventors: J. William Doane, Asad A. Khan, Irina Shiyanovskaya, Albert Green
  • Patent number: 7737928
    Abstract: A stacked color liquid crystal display uses shared electrode addressing including a plurality of liquid crystal layers each sandwiched between electrically conductive layers. Adjacent liquid crystal layers share one or two electrode layers located between the adjacent liquid crystal layers. A driving scheme is provided that allows the display to be driven by updating the liquid crystal layers sequentially, concurrently, or some combination of the two. Further, a method of manufacturing the display using a deposition process is also disclosed.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: June 15, 2010
    Assignee: Kent Displays Incorporated
    Inventors: Xiao-Yang Huang, Asad A. Khan, Nick M. Miller, IV
  • Publication number: 20090051560
    Abstract: A display for use on medical dispensing equipment, and the resulting medical device and its method of display. In particular, provided are a number of specific embodiments of such a display on a medical device, including a film display for use on pill bottles and pill dispensers that utilize colored images as a dosage reminder for the user, a conformable bistable reflective display for use on drug delivery devices, and a conformable bistable reflective display for use on blood glucose meters.
    Type: Application
    Filed: July 23, 2008
    Publication date: February 26, 2009
    Inventors: William MANNING, Sarah KWON, Albert GREEN, Joel DOMINO, Asad KHAN, J. William DOANE
  • Publication number: 20080309598
    Abstract: The invention comprises a stacked color photodisplay apparatus using a photosensitive cholesteric liquid crystalline material on which an image can be optically addressed, retained without degradation for an indefinite period of time, electrically erased and a new image addressed. This is similar to a photographic film except that the photodisplay film can be used over and over again similar to digital display but without the cost of addressing electronics. Included is a device for enhancing the brightness of the image and electrooptical devices for optically writing digital images on the photodisplay. Each cell in the stack can be selectively addressed with a different optical image such as the red, green and blue components of a color digital image.
    Type: Application
    Filed: July 1, 2008
    Publication date: December 18, 2008
    Inventors: J. William Doane, Asad A. Khan, Erica Montbach, Nithya Venkataraman
  • Publication number: 20080162836
    Abstract: Methods and systems are provided for receiving and assembling serial data into parallel arrangements referred to as data slices. A plurality of data slices define a data line. Data slices common to a data line are written across like addresses of memory logically partitioned as memory slots. Respective memory slots are selected for data write operations in a successively advancing manner. As a result, a just-written data slice is immediately available for reading on the next clock cycle. Also, respective data slices can be simultaneously written to and read from the same or different memory slots on a particular clock cycle. Fast serial data communication between peripheral devices and other computer-related entities is performed accordingly.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Roy D. Wojciechowski, Asad Khan
  • Publication number: 20070237906
    Abstract: A photodisplay device in which an optically addressed image can be viewed indefinitely, erased and readdressed with a new image is disclosed. Optically responsive reversible photochiral materials are incorporated into a bistable cholesteric liquid crystal in an electrooptic display cell. A high resolution image exposed on the cell is fixed by a low voltage pulse to unpatterned electrodes and can be, at a later time, erased with a high voltage pulse.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicants: Kent Displays Incorporated, Kent State University
    Inventors: Quan Li, Lisa Green, J. Doane, Asad Khan, Nithya Venkataraman, Irina Shiyanovskaya
  • Publication number: 20070152928
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Application
    Filed: January 28, 2005
    Publication date: July 5, 2007
    Applicant: Kents Displays Incorporated
    Inventors: J. Doane, Asad Khan, Irina Shiyanovskaya, Albert Green
  • Patent number: 7236151
    Abstract: A flexible liquid crystal display is provided wherein an addressable liquid crystal layer is disposed on a single flexible substrate so that the display itself will exhibit flexibility. The substrate is preferably a flexible non-transparent material and more preferably a drapable material such as fabric.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: June 26, 2007
    Assignee: Kent Displays Incorporated
    Inventors: J. William Doane, Asad A. Khan, Irina Shiyanovskaya, Albert Green
  • Publication number: 20070139299
    Abstract: A stacked color liquid crystal display uses shared electrode addressing including a plurality of liquid crystal layers each sandwiched between electrically conductive layers. Adjacent liquid crystal layers share one or two electrode layers located between the adjacent liquid crystal layers. A driving scheme is provided that allows the display to be driven by updating the liquid crystal layers sequentially, concurrently, or some combination of the two. Further, a method of manufacturing the display using a deposition process is also disclosed.
    Type: Application
    Filed: January 28, 2005
    Publication date: June 21, 2007
    Applicant: Kent Display Incorporated
    Inventors: Xiao-Yang Huang, Asad Khan, Nick Miller
  • Publication number: 20070126674
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Application
    Filed: January 28, 2005
    Publication date: June 7, 2007
    Applicant: Kent Displays Incorporated
    Inventors: J. William Doane, Asad Khan, Irina Shiyanovskaya
  • Patent number: 7170481
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: January 30, 2007
    Assignee: Kent Displays Incorporated
    Inventors: Joseph W. Doane, Asad A. Khan, Irina Shiyanovskaya, Tod Schneider, Oleg Pishnyak, Seth E. Green, Forrest N. Nicholson, Liang-Chy Chien
  • Patent number: 7061559
    Abstract: A liquid crystal display device includes cell wall structure and a chiral nematic liquid crystal material. The cell wall structure and the liquid crystal cooperate to form focal conic and twisted planar textures that are stable in the absence of a field. A device applies an electric field to the liquid crystal for transforming at least a portion of the material to at least one of the focal conic and twisted planar textures. The liquid crystal material has a pitch length effective to reflect radiation having a wavelength in both the visible and the infrared ranges of the electromagnetic spectrum at intensity that is sufficient for viewing by an observer. One liquid crystal material may be disposed in a single region or two or more liquid crystal materials may be used, each in separate regions even without the infrared reflecting layer. One aspect of the invention is directed to a photolithography method for patterning a substrate of the display.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 13, 2006
    Assignee: Kent Displays, Inc.
    Inventors: Asad A. Khan, Xiao-Yang Huang, Haiji Yuan, Minhua Lu
  • Patent number: 7009666
    Abstract: A reflective cholesteric display that may be viewed under a wide range of ambient lighting conditions, ranging from complete darkness to bright sunlight. The display includes a chiral nematic liquid crystal material located between first and second substrates, an ambidextrous or bi-directional circular polarizer, a partial mirror, also referred to as a transflector, and a light source. The liquid crystal material includes focal conic and planar textures that are stable in the absence of an electric field. The ambidextrous circular polarizer is located adjacent to one of the substrates that constrain the liquid crystal material. The chiral nematic liquid crystal display may be operated in both a transmissive mode and a reflective mode.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 7, 2006
    Assignee: Kent Displays Incorporated
    Inventors: Asad A. Khan, Michael E. Stefanov, Clive Catchpole
  • Publication number: 20050195354
    Abstract: The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques.
    Type: Application
    Filed: January 28, 2005
    Publication date: September 8, 2005
    Inventors: Joseph Doane, Asad Khan, Irina Shiyanovskaya, Tod Schneider, Oleg Pishnyak, Seth Green, Forrest Nicholson, Liang-Chy Chien
  • Publication number: 20050195847
    Abstract: A storage structure includes a plurality of sequentially arranged positions, each position for holding one order at a time. One of the positions is an end position from which an order is to be taken up for provisioning. Each order in a position moves to the next sequential position toward the end position, as the next sequential position becomes empty and available. The positions are organized into a first section and a second section. The first section is distal from the end position and includes at least one position. The first section receives orders from a first order delivery system into a receiving position. The second section is proximate to the end position and includes at least one position. The second section receives orders from a second order delivery system into a receiving position.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 8, 2005
    Applicant: BellSouth Intellectual Property Corporation
    Inventors: Harry Tang, Hanif Merali, M. Wilson, Asad Khan
  • Publication number: 20050162606
    Abstract: A flexible liquid crystal display is provided wherein an addressable liquid crystal layer is disposed on a single flexible substrate so that the display itself will exhibit flexibility. The substrate is preferably a flexible non-transparent material and more preferably a drapable material such as fabric.
    Type: Application
    Filed: December 7, 2004
    Publication date: July 28, 2005
    Inventors: J. Doane, Asad Khan, Irina Shiyanovskaya, Albert Green
  • Publication number: 20050145138
    Abstract: A coating composition for packaging material, and a process for developing packaging material having very low oxygen and water vapour permeability useful for packaging of food materials, particularly oil packaging. The process involves developing a coating composition with calcined clay as the functional additive and coating paper boards to a thickness of 50-100 microns with the coating composition from which suitable packing containers could be fabricated.
    Type: Application
    Filed: December 30, 2003
    Publication date: July 7, 2005
    Applicant: Council of Scientific and Industrial Research
    Inventors: Kothapalli Venkata Raju, Kattimuttathu Suresh, Bhamidipalli Sitaramam, Sundergopal Sridhar, Asad Khan