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:
Jun. 10, 2008
Filed:
Aug. 22, 2003
Gang Yu, Santa Barbara, CA (US);
Jian Wang, Goleta, CA (US);
Weixiao Zhang, Goleta, CA (US);
Matthew Stevenson, Santa Maria, CA (US);
Gang Yu, Santa Barbara, CA (US);
Jian Wang, Goleta, CA (US);
Weixiao Zhang, Goleta, CA (US);
Matthew Stevenson, Santa Maria, CA (US);
E.I du Pont de nemours and company, Wilmington, DE (US);
Abstract
A display for an electronic device may be calibrated and corrected for pixel-to-pixel variations in intensity. Radiation-sensing elements used for the calibration are not incorporated as circuit elements within the pixel circuits and may lie outside the pixels. Waveguides, reflectors, or the like may be used to optically couple the radiation-emitting elements of the pixels to the radiation-sensing elements. The radiation-sensing elements may be part of an apparatus separate from the electronic device or may be embedded within the electronic device. Many different methodologies may be used for correcting intensities to achieve better homogeneity in intensity among the pixels within a display.