| abstract |
An organic light emitting device is disclosed. The organic light emitting device includes a display unit on a substrate, the display unit including a plurality of subpixels, a plurality of monitor pixels positioned outside the display unit, a driver that supplies a data signal to the display unit in each of a plurality of subfields, a power supply unit that supplies a power to the display unit and the monitor pixels, and a sample hold unit connected to power terminals of the monitor pixels. When most significant bit is defined as n-bit, the sample hold unit samples a current supplied to the power terminals of the monitor pixels into a voltage in any one of the subfields corresponding to bit equal to or more than (n−2)-bit among the plurality of subfields, and transmits the sampled voltage to the power supply unit. |