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1. WO2022005722 - LIGHT EMITTING DIODE PERSISTENCE EFFECT MINIMIZATION

Publication Number WO/2022/005722
Publication Date 06.01.2022
International Application No. PCT/US2021/036791
International Filing Date 10.06.2021
IPC
H05B 45/50 2020.1
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
50responsive to malfunctions of LEDs; responsive to LED life; Protective circuits
B60Q 3/00 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
3Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
B60K 35/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
35Arrangement or adaptations of instruments
B60Q 3/20 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
3Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
20for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
B60H 1/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1Heating, cooling or ventilating devices
CPC
B60K 2370/332
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
2370Details of arrangements or adaptations of instruments specially adapted for vehicles, not covered by groups B60K35/00, B60K37/00
20Optical features of instruments
33Illumination features
332Light emitting diodes
B60K 35/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
35Arrangement of adaptations of instruments
B60Q 3/68
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
3Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
60characterised by optical aspects
68using ultra-violet light
B60Q 3/70
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
3Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
70characterised by the purpose
B60Q 3/80
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
3Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
80Circuits; Control arrangements
H04N 5/2256
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
2256provided with illuminating means
Applicants
  • VEONEER US, INC. [US]/[US]
Inventors
  • YILMAZ, Mehmet-Fatih
Agents
  • OLSON, Stephen T.
Priority Data
16/919,20002.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LIGHT EMITTING DIODE PERSISTENCE EFFECT MINIMIZATION
(FR) RÉDUCTION À UN MINIMUM D'UN EFFET DE PERSISTANCE D'UNE DIODE ÉLECTROLUMINESCENTE
Abstract
(EN) A system includes: a light emitting diode (LED); a switching circuit configured to: when in a first state, connect the anode of the LED to a positive potential and connect the cathode of the LED to a ground potential, thereby enabling current flow in a first direction through the LED; and when in a second state, one of: connect the ground potential to the anode of the LED; connect a negative potential to the anode of the LED; and connect the cathode of the LED to the positive potential and connect the anode of the LED to the ground potential, thereby enabling current flow in a second direction through the LED, where the second direction is opposite the first direction; and a driver module configured to selectively transition the switching circuit from the first state to the second state and from the second state to the first state.
(FR) Un système comprend : une diode électroluminescente (DEL) ; et un circuit de commutation. Dans un premier état, le circuit de commutation est configuré pour associer l'anode de la DEL à un potentiel positif et la cathode de la DEL à un potentiel de terre, ce qui permet un flux de courant dans une première direction à travers la DEL. Dans un second état, le circuit de commutation est configuré pour associer le potentiel de terre à l'anode de la DEL ou pour associer un potentiel négatif à l'anode de la DEL ou pour associer la cathode de la DEL au potentiel positif et l'anode de la DEL au potentiel de terre, ce qui permet un flux de courant dans une seconde direction à travers la DEL, la seconde direction étant opposée à la première. Ledit système comprend également un module de commande configuré pour faire passer sélectivement le circuit de commutation du premier état au second et inversement.
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