Organic light emitting display and method of driving the same

摘要

There is provided an organic light emitting display capable of improving the display quality of a low brightness region. The organic light emitting display includes pixels positioned at intersections of scan lines, emission control lines, and data lines, a converter for receiving data to generate brightness values, a timing controller for extracting emission time values and gamma values to correspond to the brightness values, an emission control line driver for supplying emission control signals to the emission control lines so that emission times of the pixels are controlled to correspond to the emission time values, and a gamma voltage generator for generating gamma voltages corresponding to the gamma values.

主权项

1. An organic light emitting display, comprising:
pixels positioned at intersections of scan lines, emission control lines, and data lines; a scan driver to supply scan signals to the scan lines; a converter for receiving data to generate brightness values; a timing controller to determine emission time values and gamma values to correspond to the brightness values; an emission control line driver for supplying emission control signals to the emission control lines so that emission times of the pixels are controlled to correspond to the emission time values; a gamma voltage generator for generating gamma voltages corresponding to the gamma values, wherein the emission time values correspond to different widths of the emission control signals; a data driver to generate data signals using the data and the gamma voltages; a first look-up table to store the emission time values corresponding to the brightness values; and a second look-up table to store the gamma values corresponding to the brightness values.