The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2005
Filed:
Jan. 07, 2004
Gregory J. Hewlett, Richardson, TX (US);
Steven M. Penn, Plano, TX (US);
Greg S. Pettitt, Rowlett, TX (US);
Dana F. Segler, Jr., Allen, TX (US);
Gregory J. Hewlett, Richardson, TX (US);
Steven M. Penn, Plano, TX (US);
Greg S. Pettitt, Rowlett, TX (US);
Dana F. Segler, Jr., Allen, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The present application describes embodiments of a neutral density color wheel filter. According to one embodiment, a neutral density color wheel () includes an opaque coating () over one or more color segments () with randomly placed transmissive regions (). The transmissive regions () can be configured to substantially transmit incident light and the opaque coating () can be configured to substantially block or absorb the incident light. Alternatively, the transmissive regions () can be configured to substantially transmit the incident light. The color segments with opaque coating () and transmissive regions () substantially eliminate light recycling due to the reflection from the color wheel. The light transmission from the color wheel () is independent of the optics of a display system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile