Voltage-programming scheme for current-driven amoled displays

Details Voltage-programming scheme for current-driven amoled displays Voltage-programming scheme for current-driven amoled displays

G - Physics

09

G

G09G 3/32 (2006.01)

Patent

CA 2567076

A system and method for driving an AMOLED display is provided. The AMOLED display includes a plurality of pixel circuits. A voltage-programming scheme, a current-programming scheme or a combination thereof is applied to drive the display. Threshold shift information, and/or voltage necessary to obtain hybrid driving circuit may be acquired. A data sampling may be implemented to acquire a current/voltage relationship. A feedback operation may be implemented to correct the brightness of the pixel.

L'invention concerne un système et un procédé d'alimentation d'un écran AMOLED. L'écran AMOLED comprend une pluralité de circuits de pixels. Une configuration de programmation par tension, une configuration de programmation par courant, ou leur combinaison, est appliqué pour alimenter l'écran. Des données de décalage de seuil et/ou la tension nécessaire pour obtenir un circuit de commande hybride peuvent être acquises. Un échantillonnage de données peut être mis en oeuvre pour établir une relation courant-tension. Une opération de rétroaction peut être mise en oeuvre pour corriger la luminosité du pixel.

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