OLED display wherein the storage capacitor is charged by a second power source according to inverted emission control signals

摘要

An organic light emitting display includes a scan driver for driving scan lines and emission control lines, a data driver for driving data lines, a display unit including pixels at crossing regions of scan lines and data lines, first power source lines coupled to a first power source configured to supply a first voltage and coupled to pixels in columns, horizontal power source lines extending in a direction parallel with scan lines and coupled to pixels in rows, and a second power source line coupled to the horizontal power source lines and to a second power source configured to supply the same voltage as the first power source, each of the pixels being configured to store a voltage corresponding to voltages of the second power source and a data signal and to control an amount of current that flows from the first power source in accordance with the stored voltage.

主权项

1. An organic light emitting display, comprising:
a scan driver for driving a plurality of scan lines and a plurality of emission control lines, wherein the scan driver is configured to supply a plurality of emission control signals to the emission control lines, and to supply a plurality of inverted emission control signals generated by inverting the emission control signals to a plurality of inverted emission control lines; a data driver for driving a plurality of data lines; a display unit including pixels at crossing regions of the scan lines and the data lines; a plurality of first power source lines coupled to a first power source configured to supply a first voltage and coupled to the pixels in columns; a plurality of horizontal power source lines extending in a direction parallel with the scan lines and coupled to the pixels in rows; a second power source line coupled to the horizontal power source lines and coupled to a second power source configured to supply a second voltage equal to the first voltage; and a plurality of first switching elements, each of the first switching elements being coupled between a respective horizontal power source line of the horizontal power source lines and the second power source line, wherein each of the first switching elements are configured to be turned on when a corresponding inverted emission control is supplied to a corresponding one of the inverted emission control lines, wherein each of the pixels comprises:
a driving transistor directly coupled to a corresponding one of the first power source lines and having a gate electrode electrically coupled to a storage capacitor, and wherein each of the pixels is configured to store a third voltage corresponding to the second voltage of the second power source and a data signal voltage supplied by the data driver and is configured to control an amount of current that flows from the first power source in accordance with the third voltage.