Non-linear gamma compensation current mode digital-analog convertor and display device including the same

A display device comprising:

• a plurality of pixels;
• and
• a data driver comprising a digital-analog converter configured to convert a digital image signal into an analog gray level current and to apply the gray level current to a plurality of data lines coupled to the plurality of pixels,
• wherein the digital-analog converter comprises:
• a first digital-analog converter block configured to receive the image signal, a first reference voltage, and a gamma adjustment voltage, and to output a reference current to a ground, wherein a first current provided to a first current output terminal is determined according to the image signal and the gamma adjustment voltage;
• and
• a second digital-analog converter block configured to receive the image signal, a second reference voltage, and a ground voltage and to output the first current to the first digital-analog converter, wherein a second current provided to a second current output terminal is determined according to the image signal and the first current.