Pixels, display device comprising pixels, and driving method therefor

Abstract

The present invention relates to pixels, a display device comprising the pixels, and a driving method therefor, the pixels comprising: a first transistor which is connected between a first power source and a fourth node and which has a gate electrode connected to a first node; a second transistor which is connected between a third node and a data line and which is turned on in response to a scan signal supplied through an ith (i is a natural number) first scan line; a third transistor which is connected between the first node and the fourth node and which is turned on in response to a scan signal supplied through an ith third scan line; a fourth transistor which is connected between a second node and an initialization voltage and which is turned on in response to a scan signal supplied through an ith second scan line; a first capacitor connected between the third node and the first node; a second capacitor connected between the first node and the second node; and an organic light-emitting diode connected between the second node and a second power source, wherein the third transistor is an N-type transistor.

Description

technical field [0001] The present disclosure relates to a pixel, a display device including the pixel, and a method of driving the display device. Background technique [0002] The display device includes pixels connected to data lines and scan lines. A pixel generally includes a light emitting element and a drive transistor for controlling the amount of current flowing to the light emitting element. The driving transistor controls the amount of current flowing from the first driving power source to the second driving power source through the light emitting element in response to the data signal. In this case, the light emitting element generates light of a certain brightness corresponding to the amount of current from the drive transistor. [0003] A method of realizing high luminance by setting the voltage of the second driving power source to a low level or minimizing power consumption by driving the display device at a low frequency is currently used. However, in the...

AI Technical Summary

Problems solved by technology

However, in the case of setting the second driving power source to low level or driving the display device at a low frequency, a certain leakage current is generated from the gate electrode of the driving transistor

In this case, the voltage of the data signal cannot be maintained for a single frame, therefore, an image with the desired brightness cannot be displayed

Images