Patent ID: 7808458
Filing Date: 2010-10-05
Classification: G09G,H01L

Abstract:
1. A light emitting display for displaying an image on a display panel having a plurality of scan lines for transmitting selection signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, each of the plurality of pixel circuits comprising: a light emitting element having a first electrode and a second electrode, wherein at least one of the data signals transmitted through at least one of the data lines is applied to the second electrode; and a dedicated current detector for detecting a current flowing through the light emitting element of the pixel circuit, the light emitting display comprising: a current estimator for estimating an amount of the current flowing through the light emitting element using the dedicated current detector, and for outputting a detection signal in response to the amount of the current; a controller for outputting a gamma compensation value corresponding to the detection signal; and a data driver for generating a gamma-compensated data signal based on the gamma compensation value and for applying the gamma-compensated data signal to at least one of the data lines, wherein the plurality of pixel circuits comprises: