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1. WO2020064823 - MATRIX LIGHT SOURCE WITH DIMMING

Publication Number WO/2020/064823
Publication Date 02.04.2020
International Application No. PCT/EP2019/075838
International Filing Date 25.09.2019
IPC
F21S 41/153 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
10characterised by the light source
14characterised by the type of light source
141Light emitting diodes
151arranged in one or more lines
153arranged in a matrix
H05B 33/08 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
08Circuit arrangements for operating electroluminescent light sources
H01L 33/00 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
CPC
F21S 41/153
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
41Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
10characterised by the light source
14characterised by the type of light source
141Light emitting diodes [LED]
151arranged in one or more lines
153arranged in a matrix
F21S 43/15
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
43Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
10characterised by the light source
13characterised by the type of light source
15Strips of light sources
H01L 33/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
H05B 45/44
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes [LED]
40Details of LED load circuits
44with an active control inside an LED matrix
Applicants
  • VALEO VISION [FR]/[FR]
Inventors
  • ZOJCESKI, Zdravko
  • DAROUSSIN, Samuel
Agents
  • BRILLET-DE-CANDE, Remi
Priority Data
185902728.09.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MATRIX LIGHT SOURCE WITH DIMMING
(FR) SOURCE LUMINEUSE MATRICIELLE A GRADATION DE L'INTENSITE LUMINEUSE
Abstract
(EN)
The invention proposes a matrix light source having a plurality of elementary light sources with light-emitting semiconductor elements, and a common substrate in contact with an integrated circuit. The integrated circuit allows a brightness setpoint to be stored for each elementary light source of the matrix source, and comprises a circuit for managing the power supply for each source, allowing the brightness setpoint to be implemented without needing other external controls.
(FR)
L'invention propose une source lumineuse matricielle ayant une pluralité de sources lumineuses élémentaires à élément semi-conducteur électroluminescent et un substrat commun en contact avec un circuit intégré. Le circuit intégré permet de stocker une consigne de luminosité pour chaque source élémentaire de la source matricielle, et il comprend un circuit de gestion de l'alimentation pour chaque source, permettant de réaliser ladite consigne de luminosité sans avoir besoin d'autres commandes externes.
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