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.

Date of Patent:
Jun. 14, 2016

Filed:

May. 30, 2008
Applicants:

Rob Otte, Eindhoven, NL;

Carsten Deppe, Aachen, DE;

Oscar Jan Deurloo, Eindhoven, NL;

Inventors:

Rob Otte, Eindhoven, NL;

Carsten Deppe, Aachen, DE;

Oscar Jan Deurloo, Eindhoven, NL;

Assignee:

Koninklijke Philips N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 1/00 (2006.01); G09G 3/34 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3413 (2013.01); G09G 2310/0235 (2013.01);
Abstract

A light source sequentially emits lights generated by at least three light emitting elements each emitting a different primary color to generate an image. Each light emitting element has a duty cycle in a lighting period, which may be an image frame period. A sequence scheme is provided for alternatingly driving different ones of the light emitting elements. The light emitting elements are driven in accordance with the sequence scheme at least two times in the lighting period, while maintaining the duty cycle for each light emitting element. In the sequence scheme, at least one light emitting element having the highest temperature sensitivity of all light emitting elements is driven more times than another one.


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