Led display device and method for controlling the same

G - Physics – 09 – F

Patent

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Details

G09F 9/33 (2006.01) G09G 3/32 (2006.01) G09G 5/02 (2006.01) H01L 33/00 (2006.01) H04N 9/30 (2006.01)

Patent

CA 2237664

An LED display device includes an LED display section including a plurality of light emitting blocks arranged in a matrix, each light emitting block including at least a red LED, a green LED, and a blue LED; a color control section including a red color control circuit, a green color control circuit and a blue color control circuit, for controlling an amount of light emitted by the red LED, the green LED, and the blue LED in accordance with a red color signal, a green color signal and a blue color signal; and an LED driving control section including a red LED driving circuit, a green LED driving circuit and a blue LED driving circuit, for controlling the LED display section in response to an output signal from the color control section. At least one of a control of controlling the red LED driving circuit and the green LED driving circuit in response to an output signal from the red color control circuit and a control of controlling the green LED driving circuit and the red LED driving circuit in response to an output signal from the green color control circuit is performed.

L'invention est un dispositif d'affichage à diodes luminescentes qui est constitué d'une section d'affichage à diodes luminescentes incluant une pluralité de blocs luminescents en configuration matricielle, chaque bloc luminescent comportant au moins une diode luminescente rouge, une diode luminescente verte et une diode luminescente bleue; une section de commande des couleurs comprenant un circuit de commande du rouge, un circuit de commande du vert et un circuit de commande du bleu utilisés pour commander la quantité de lumière émise par les diodes luminescentes rouge, verte et bleue selon le signal de couleur rouge, le signal de couleur verte et le signal de couleur bleue; et une section d'attaque des diodes luminescentes comportant un circuit d'attaque des diodes luminescentes rouges, un circuit d'attaque des diodes luminescentes vertes et un circuit d'attaque des diodes luminescentes bleues, qui est utilisée pour commander la section d'affichage à diodes luminescentes en réponse au signal de sortie de la section de commande des couleurs. Au moins une des opérations de commande visant à contrôler le circuit d'attaque des diodes luminescentes rouges et le circuit d'attaque des diodes luminescentes vertes en réponse au signal de sortie du circuit de commande du rouge, et à contrôler le circuit d'attaque des diodes luminescentes vertes et le circuit d'attaque des diodes luminescentes rouges en réponse au signal de sortie du circuit de commande du vert est effectuée.

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