Patent ID: 8842110
Filing Date: 2014-09-23
Classification: G09G

Abstract:
1. An organic light emitting display device, comprising: a display unit including a plurality of pixels having an organic light emitting diode (OLED) emitting light due to a driving current flowing between an input terminal of an OLED driving voltage and a ground terminal, and a driving thin-film transistor (TFT) controlling the driving current according to a gate-source voltage, a gate node of the driving TFT being initialized to a reference voltage for a predetermined time period; a power supply unit including a power integrated chip (IC) generating the OLED driving voltage to be applied to the display unit based on an input battery voltage; a driving unit including an output buffer generating the reference voltage and applying the reference voltage to the pixels, and generating a current path control signal in a different logic level along with controlling whether to operate the power IC according to an operating mode; and a leakage current cut-off unit switching a current path between an output terminal of the power supply unit and the input terminal of the OLED driving voltage according to the current path control signal, wherein the current path control signal controls both the current path between the power supply unit and the display unit and a current path between the OLED and the ground terminal.