Patents by Inventor Peggy Lopez

Peggy Lopez 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).

  • Touch sensing liquid crystal display compatible with linearly polarized sunglasses
    Patent number: 9116390
    Abstract: A touch sensing liquid crystal display is made with a stack of layers that has controlled or low birefringence. The final layers of the output of the touch sensing liquid crystal display circularly polarize the output light. The combination of low birefringence and circularly polarized output light provides a touch sensing LCD that can be viewed from many angles with low visible artifacts, even through linear polarizing objects, such as sunglasses.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: August 25, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Karlton Powell, Peggy Lopez
  • TOUCH SENSING LIQUID CRYSTAL DISPLAY COMPATIBLE WITH LINEARLY POLARIZED SUNGLASSES
    Publication number: 20140055373
    Abstract: A touch sensing liquid crystal display is made with a stack of layers that has controlled or low birefringence. The final layers of the output of the touch sensing liquid crystal display circularly polarize the output light. The combination of low birefringence and circularly polarized output light provides a touch sensing LCD that can be viewed from many angles with low visible artifacts, even through linear polarizing objects, such as sunglasses.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Applicant: MICROSOFT CORPORATION
    Inventors: Karlton Powell, Peggy Lopez