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1. WO2020053718 - HIGH SPEED IMAGE REFRESH SYSTEM

Publication Number WO/2020/053718
Publication Date 19.03.2020
International Application No. PCT/IB2019/057507
International Filing Date 05.09.2019
IPC
G09G 3/32 2016.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
B60Q 1/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
02the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
04the devices being headlights
14having dimming means
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
G09G 3/30 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
22using controlled light sources
30using electroluminescent panels
F21S 41/00 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
G09G 5/00 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
CPC
B60Q 1/143
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangements or adaptations of optical signalling or lighting devices
02the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
04the devices being headlights
14having dimming means
1415Dimming circuits
1423Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
143combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
B60Q 2300/054
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
2300Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
05Special features for controlling or switching of the light beam
054Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity
B60Q 2300/42
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
2300Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
40Indexing codes relating to other road users or special conditions
42oncoming vehicle
B60Q 2300/45
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
2300Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
40Indexing codes relating to other road users or special conditions
45Special conditions, e.g. pedestrians, road signs or potential dangers
F21S 41/00
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
G09G 2310/04
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
04Partial updating of the display screen
Applicants
  • LUMILEDS HOLDING B.V. [NL]/[NL]
Inventors
  • BONNE, Ronald
  • KARBOWSKI, Udo
Priority Data
16/456,85828.06.2019US
16/456,86228.06.2019US
18203445.430.10.2018EP
62/729,25710.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HIGH SPEED IMAGE REFRESH SYSTEM
(FR) SYSTÈME DE RAFRAÎCHISSEMENT D'IMAGE HAUTE VITESSE
Abstract
(EN)
A LED controller for an LED pixel array includes an image frame buffer to receive image data and a standby image buffer connected to the image frame buffer to hold a standby image. A command and control module connected is configured to substitute the standby image in the standby image buffer for the image in the image frame buffer when image data is unavailable.
(FR)
L'invention concerne un organe de commande de DEL d'un réseau de pixels à DEL comprenant un tampon de trame d'image servant à recevoir des données d'image et un tampon d'image de veille connecté au tampon de trame d'image pour maintenir une image de veille. Un module d'instruction et de commande connecté est configuré pour remplacer l'image de veille du tampon d'image de veille par l'image du tampon de trame d'image lorsque des données d'image sont indisponibles.
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