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:
Mar. 18, 2014
Filed:
Jun. 16, 2009
David Vaufrey, Grenoble, FR;
Christophe Prat, Coueron, FR;
David Vaufrey, Grenoble, FR;
Christophe Prat, Coueron, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The invention relates to a polychromatic electronic display device with an electroluminescent screen, particularly with organic light-emitting diodes (OLEDs), wherein the polychromatic electronic display device comprises an electroluminescent emission surface and, towards the inside of the device, at least one substrate () coated with a pixel matrix, said device including a stack of a plurality of electroluminescent cells (Uand U) in which each pixel comprises at least three sub-pixels having different colours. According to the invention, for each pixel, the sub-pixel having the lowest emission wavelength λ, or critical sub-pixel, is exclusively located in the external unit (U) adjacent to said emission surface, each of the other sub-pixels emitting at a wavelength higher than λbeing exclusively located in an internal unit (U) relative to said external unit and adjacent to the substrate, the surface area of this critical sub-pixel being higher than that of each of the other sub-pixels.