Method of driving organic electroluminescence emission portion

摘要

A pixel circuit and driving method are disclosed, wherein the pixel circuit comprises a first transistor, a second transistor, and a capacitor. The first transistor is connected between a power source and a light emission portion, and the second transistor is connected to a data line. The capacitor is initialized according to a potential, and a video signal is applied from the data line to the capacitor through the second transistor. For driving, an initialization voltage is applied to the data line and the video signal is supplied to the data line, with the second transistor being turned ON prior to applying the initialization voltage to the data line.

主权项

1. A method of driving a pixel circuit, said pixel circuit including a first transistor connected between a power source and a light emission portion, a second transistor connected to a date line, and a capacitor connected between a gate electrode and a current electrode of the first transistor, the method comprising, within a given frame period:
turning ON the second transistor at a first timing, the first timing occurring while a first video signal voltage is applied to the data line; subsequent to the first timing, initializing a potential at the capacitor by applying an initialization voltage to the data line; and supplying a second video signal voltage from the data line to the capacitor through the second transistor, wherein the gate electrode of the first transistor is connected to the capacitor via a first node, and the capacitor and the light emission portion are connected to the current electrode of the first transistor via a second node, the method further comprising, while performing the aforementioned initializing a potential at the capacitor, applying a second initializing voltage, lower than driving voltage for driving light emission of the light emission portion, to the second node.