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:
Sep. 14, 2010
Filed:
Jan. 29, 2007
Christophe Kopp, Fontanil-Cornillon, FR;
Xavier Hugon, Voiron, FR;
Bruno Mourey, Coublevie, FR;
Alexei Tchelnokov, Grenoble, FR;
Christophe Kopp, Fontanil-Cornillon, FR;
Xavier Hugon, Voiron, FR;
Bruno Mourey, Coublevie, FR;
Alexei Tchelnokov, Grenoble, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The light-emitting device includes a base substrate and preferably three light-emitting diodes respectively associated with three primary colors and emitting a part of their signal in the direction of the base substrate. The device includes three chromatic photodetectors formed in the base substrate constituting a semiconducting substrate, and each arranged under an associated light-emitting diode. Each chromatic photodetector includes superposed first, second and third layers. The first layer and third layer have a first type of conductivity and the second layer has a second type of conductivity. The device includes a control component connected to the chromatic photodetectors and to the light-emitting diodes to control the global color of the light emitted by the device.