Patents by Inventor William C. Heinze

William C. Heinze 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).

  • Subtractive color LCD utilizing circular notch polarizers and including a triband or broadband filter tuned light source or dichroic sheet color polarizers
    Patent number: 5751385
    Abstract: A subtractive color liquid crystal display employing circular polarizers. In the subtractive color display each picture element has three liquid crystal switching elements. Adjacent to each liquid crystal switching element are a circular polarizer and 1/4 wave retarder plate combination. The circular polarizer and 1/4 wave retarder plate combination create a linear notch polarizer for an isolated and steep polarization band for each of the primary colors (red, green blue). The notch polarizes are tuned to the particular backlight of the display in order to provide increased light transmittance and color gamut.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: May 12, 1998
    Assignee: Honeywell, Inc.
    Inventor: William C. Heinze