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1. WO2020109111 - OPTOELECTRONIC DISPLAY DEVICE AND METHOD FOR OPERATING AN OPTOELECTRONIC DISPLAY DEVICE

Publication Number WO/2020/109111
Publication Date 04.06.2020
International Application No. PCT/EP2019/081952
International Filing Date 20.11.2019
IPC
H05B 45/24 2020.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
45Circuit arrangements for operating light emitting diodes
20Controlling the colour of the light
24using electrical feedback from LEDs or from LED modules
G09F 9/33 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30in which the desired character or characters are formed by combining individual elements
33being semiconductor devices, e.g. diodes
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
CPC
G09G 2310/027
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
02Addressing, scanning or driving the display screen or processing steps related thereto
0264Details of driving circuits
027Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
G09G 2320/0223
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0223Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
G09G 2320/0666
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
06Adjustment of display parameters
0666for control of colour parameters, e.g. colour temperature
G09G 3/2003
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
2003Display of colours
G09G 3/2014
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
2007Display of intermediate tones
2014by modulation of the duration of a single pulse during which the logic level remains constant
G09G 3/32
GPHYSICS
09EDUCATION; 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 ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes [LED]
Applicants
  • OSRAM OPTO SEMICONDUCTORS GMBH [DE]/[DE]
Inventors
  • RUEGHEIMER, Tilman
  • HALBRITTER, Hubert
Agents
  • ZACCO PATENT- & RECHTSANWÄLTE
Priority Data
10 2018 129 945.127.11.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) OPTOELEKTRONISCHE ANZEIGEVORRICHTUNG UND VERFAHREN ZUM BETRIEB EINER OPTOELEKTRONISCHEN ANZEIGEVORRICHTUNG
(EN) OPTOELECTRONIC DISPLAY DEVICE AND METHOD FOR OPERATING AN OPTOELECTRONIC DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE OPTOÉLECTRONIQUE ET PROCÉDÉ DE FONCTIONNEMENT D'UN DISPOSITIF D'AFFICHAGE OPTOÉLECTRONIQUE
Abstract
(DE)
Eine optoelektronische Anzeigevorrichtung (10) umfasst eine Vielzahl von Pixeln (12), wobei jedes Pixel (12) zumindest ein erstes optoelektronisches Halbleiterbauelement (13) zur Erzeugung von Licht einer ersten Farbe und ein zweites optoelektronisches Halbleiterbauelement (14) zur Erzeugung von Licht einer zweiten Farbe umfasst, und eine Steuereinheit (16), die ausgebildet ist, das erste optoelektronische Halbleiterbauelement (13) zumindest eines der Pixel (12) mit einem ersten pulsweitenmodulierten Signal zu beaufschlagen und das zweite optoelektronische Halbleiterbauelement (14) des zumindest einen Pixels (12) mit einem zweiten pulsweitenmodulierten Signal zu beaufschlagen, wobei die Pulse (20) zumindest eines des ersten und des zweiten pulsweitenmodulierten Signals jeweils einen ersten Pulsteil (21) und einen zweiten Pulsteil (22) aufweisen und der erste Pulsteil (21) eine größere Pulshöhe als der zweite Pulsteil (22) aufweist, oder wobei die Pulse (31) des ersten pulsweitenmodulierten Signals und die Pulse (32) des zweiten pulsweitenmodulierten Signals unterschiedliche Pulslängen aufweisen.
(EN)
The invention relates to an optoelectronic display device (10) comprises: a plurality of pixels (12), each pixel (12) comprising at least a first optoelectronic semiconductor component (13) for producing light of a first color and a second optoelectronic semiconductor component (14) for producing light of a second color; and a control unit (16), which is designed to apply a first pulse-width-modulated signal to the first optoelectronic semiconductor component (13) of at least one of the pixels (12) and to apply a second pulse-width-modulated signal to the second optoelectronic semiconductor component (14) of the at least one pixel (12), the pulses (20) of at least one of the first and the second pulse-width-modulated signals each comprising a first pulse part (21) and a second pulse part (22) and the first pulse part (21) having a greater pulse height than the second pulse part (22), or the pulses (31) of the first pulse-width-modulated signal and the pulses (32) of the second pulse-width-modulated signal having different pulses lengths.
(FR)
Dispositif d'affichage optoélectronique (10), comprenant une pluralité de pixels (12), chaque pixel (12) comprenant au moins un premier composant semi-conducteur optoélectronique (13) pour produire de la lumière d'une première couleur et un second composant semi-conducteur optoélectronique (14) pour produire de la lumière d'une seconde couleur, et une unité de commande (16) qui est conçue pour soumettre le premier composant semi-conducteur optoélectronique (13) d'au moins un des pixels (12) à l'effet d'un premier signal d'impulsions modulées en durée et le second composant semi-conducteur optoélectronique (14) du ou des pixels (12) à l'effet d'un second signal d'impulsions modulées en durée. Les impulsions (20) du premier et/ou du second signal d'impulsions modulées en durée comprennent chacune une première partie (21) et une seconde partie (22), et la première partie (21) des impulsions présentant une hauteur plus grande que celle de la seconde partie (22) des impulsions, ou l'impulsion (31) du premier signal d'impulsions modulées en durée et l'impulsion (32) du second signal d'impulsions modulées en durée présentent des durées d'impulsions différentes.
Also published as
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