EP 3857665 A1 20210804 - VOLTAGE-CONTROLLED MATRIX LIGHT SOURCE WITH DIAGNOSTIC CIRCUIT FOR A MOTOR VEHICLE
Title (en)
VOLTAGE-CONTROLLED MATRIX LIGHT SOURCE WITH DIAGNOSTIC CIRCUIT FOR A MOTOR VEHICLE
Title (de)
SPANNUNGSGESTEUERTE MATRIXLICHTQUELLE MIT DIAGNOSESCHALTUNG FÜR EIN KRAFTFAHRZEUG
Title (fr)
SOURCE LUMINEUSE MATRICIELLE PILOTEE EN TENSION A CIRCUIT DIAGNOSTIC POUR UN VEHICULE AUTOMOBILE
Publication
Application
Priority
- FR 1859023 A 20180928
- EP 2019075839 W 20190925
Abstract (en)
[origin: WO2020064824A1] The invention relates to a matrix light source designed to be supplied with electrical voltage and having a plurality of elementary light sources with an electroluminescent semiconductor element and a common substrate in contact with an integrated circuit. The integrated circuit includes, for each elementary light source, a switch device allowing it to be selectively connected to a source of electrical voltage as a function of a first control signal. The substrate comprises, for at least one of the elementary light sources, a circuit for detecting a fault in an open circuit of the elementary light source.
IPC 8 full level
H02H 9/04 (2006.01); H01L 27/15 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/44 (2020.01 - EP US); H05B 45/50 (2020.01 - EP US); H05B 45/58 (2020.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020064824 A1 20200402; CN 112805896 A 20210514; EP 3857665 A1 20210804; FR 3086724 A1 20200403; FR 3086724 B1 20221014; JP 2022502820 A 20220111; JP 7430712 B2 20240213; US 11457518 B2 20220927; US 2021315081 A1 20211007
DOCDB simple family (application)
EP 2019075839 W 20190925; CN 201980064251 A 20190925; EP 19773092 A 20190925; FR 1859023 A 20180928; JP 2021517271 A 20190925; US 201917280476 A 20190925