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:
Jul. 05, 2011
Filed:
Dec. 31, 2007
Steven M. Penn, Plano, TX (US);
Harold E. Bellis, Ii, Garland, TX (US);
Gregory J. Hewlett, Richardson, TX (US);
Dana F. Segler, Jr., Allen, TX (US);
Gregory S. Pettitt, Farmersville, TX (US);
Steven M. Penn, Plano, TX (US);
Harold E. Bellis, II, Garland, TX (US);
Gregory J. Hewlett, Richardson, TX (US);
Dana F. Segler, Jr., Allen, TX (US);
Gregory S. Pettitt, Farmersville, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A method for compensating for a shift in color in a light source and a system of color illumination for a projection visual display (PVD) system. In one embodiment, the method includes: (1) field sequentially operating an array of emitters to generate a sequence of light beams, each light beam comprising an uncompensated saturated color, (2) determining a compensated target color from the uncompensated standard color, the compensated target color determined based upon a variation in the uncompensated standard color and variations in at least two other uncompensated standard colors, (3) combining a first light beam of a first color with a second light beam of a second color to produce said compensated target color, the first and second light beams combined in an optical path to travel concurrently, the combination of the first and second light beams resulting in a composite color coordinate and without exceeding the etendue limit and (4) directing the combination of the first and second light beams at the spatial light modulator, said modulator operable to receive the combination and produce a desired color on a display.