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1. (WO2018185394) OLED-BASED SIGNALLING DEVICE FOR A VEHICLE WITH THREE-DIMENSIONAL EFFECT

Pub. No.:    WO/2018/185394    International Application No.:    PCT/FR2018/050646
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Sat Mar 17 00:59:59 CET 2018
IPC: F21V 14/02
F21S 10/00
F21S 43/145
F21S 43/30
F21Y 115/15
F21Y 105/00
Applicants: PSA AUTOMOBILES SA
Inventors: LARRIBEAU, Nathalie
GONCALVES, Whilk Marcelino
LE DALL, Christophe
Title: OLED-BASED SIGNALLING DEVICE FOR A VEHICLE WITH THREE-DIMENSIONAL EFFECT
Abstract:
The present invention concerns a light signalling device comprising a first optical element (10) provided with a reflective surface, a second optical element (20) provided with a semi-reflective surface and arranged opposite and separated from the first optical element (10) so as to define between them a cavity (2), a light source (10) arranged so as to emit light rays penetrating into said cavity (2), a portion of these light rays being successively reflected by one and by the other of said optical elements (10, 20) in such a way as to generate a repetitive optical depth effect; the one of the optical elements and the light source consisting of an OLED (10) comprising, interposed between two electrodes (12, 14), one (14) of which constitutes the reflective or semi-reflective surface, a structured organic layer in a main central transparent non-electroluminescent zone (13A) and in a peripheral electroluminescent zone (13B).