Organic light emitting display device and method for driving thereof

摘要

An organic light emitting display device includes a display panel (100) having a plurality of sub-pixels; a memory (300) configured to accumulate and store data displayed by each sub-pixel; and a panel driver (200) configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory (300), generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory (300).