Patents by Inventor Brandon L. Conover

Brandon L. Conover 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).

  • Polarization-independent liquid crystal display devices including multiple polarizing grating arrangements and related devices
    Patent number: 9195092
    Abstract: A liquid crystal device includes a first polarization grating, a second polarization grating, and a liquid crystal layer. The first polarization grating is configured to polarize and diffract incident light into first and second beams having different polarizations and different directions of propagation relative to that of the incident light. The liquid crystal layer is configured to receive the first and second beams from the first polarization grating. The liquid crystal layer is configured to be switched between a first state that does not substantially affect respective polarizations of the first and second beams traveling therethrough, and a second state that alters the respective polarizations of the first and second beams traveling therethrough. The second polarization grating is configured to analyze and diffract the first and second beams from the liquid crystal layer to alter the different directions of propagation thereof in response to the state of the liquid crystal layer.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: November 24, 2015
    Assignee: North Carolina State University
    Inventors: Michael J. Escuti, Chulwoo Oh, Ravi Komanduri, Brandon L. Conover, Jihwan Kim
  • POLARIZATION-INDEPENDENT LIQUID CRYSTAL DISPLAY DEVICES INCLUDING MULTIPLE POLARIZING GRATING ARRANGEMENTS AND RELATED DEVICES
    Publication number: 20130335683
    Abstract: A liquid crystal device includes a first polarization grating, a second polarization grating, and a liquid crystal layer. The first polarization grating is configured to polarize and diffract incident light into first and second beams having different polarizations and different directions of propagation relative to that of the incident light. The liquid crystal layer is configured to receive the first and second beams from the first polarization grating. The liquid crystal layer is configured to be switched between a first state that does not substantially affect respective polarizations of the first and second beams traveling therethrough, and a second state that alters the respective polarizations of the first and second beams traveling therethrough. The second polarization grating is configured to analyze and diffract the first and second beams from the liquid crystal layer to alter the different directions of propagation thereof in response to the state of the liquid crystal layer.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 19, 2013
    Applicant: North Carolina State University
    Inventors: Michael J. Escuti, Chulwoo Oh, Ravi Komanduri, Brandon L. Conover, Jihwan Kim
  • Polarization-independent liquid crystal display devices including multiple polarization grating arrangements and related devices
    Patent number: 8537310
    Abstract: A liquid crystal device includes a first polarization grating (101), a second polarization grating (102), and a liquid crystal layer (103). The first polarization grating (101) is configured to polarize and diffract incident light (190) into first and second beams (195,196) having different polarizations and different directions of propagation relative to that of the incident light (190). The liquid crystal layer (103) is configured to receive the first and second beams (195,196) from the first polarization grating (101). The liquid crystal layer (103) is configured to be switched between a first state that does not substantially affect respective polarizations of the first and second beams (195,196) traveling therethrough, and a second state that alters the respective polarizations of the first and second beams (195,196) traveling therethrough.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: September 17, 2013
    Assignee: North Carolina State University
    Inventors: Michael James Escuti, Chulwoo Oh, Ravi Komanduri, Brandon L. Conover, Jihwan Kim
  • Polarization-Independent Liquid Crystal Display Devices Including Multiple Polarization Grating Arrangements and Related Devices
    Publication number: 20110242461
    Abstract: A liquid crystal device includes a first polarization grating (101), a second polarization grating (102), and a liquid crystal layer (103). The first polarization grating (101) is configured to polarize and diffract incident light (190) into first and second beams (195,196) having different polarizations and different directions of propagation relative to that of the incident light (190). The liquid crystal layer (103) is configured to receive the first and second beams (195,196) from the first polarization grating (101). The liquid crystal layer (103) is configured to be switched between a first state that does not substantially affect respective polarizations of the first and second beams (195,196) traveling therethrough, and a second state that alters the respective polarizations of the first and second beams (195,196) traveling therethrough.
    Type: Application
    Filed: October 9, 2008
    Publication date: October 6, 2011
    Inventors: Michael James Escuti, Chulwoo Oh, Ravi Komanduri, Brandon L. Conover, Jihwan Kim