Patent ID: 9449556
Filing Date: 2016-09-20
CPC Classification: G09G,H01L

Claim Text:
1. A display device comprising a plurality of pixels, each of the pixels including: a driving transistor; a sampling transistor; and a display element, wherein the driving transistor including a first current node and a second current node, respectively coupled to a power supply line and the display element, so as to control a current from the power supply line to the display element, and the sampling transistor is connected to a signal line so as to sample an image data, wherein, during display of image frames in a plurality of frame periods, after a light emitting period of a given frame period begins and before a light emitting period of a next frame period begins, each of the pixels is driven such that: (i) a potential of an anode electrode of the display element is set by applying a predetermined intermediate voltage to the anode electrode so that a potential difference between the anode electrode and a cathode electrode of the display element does not exceed a threshold voltage of the display element; then, (ii) the display element is kept in non-emission state and an anode initializing voltage is applied to the anode electrode from the power supply line to the first current node of the driving transistor, and wherein the predetermined intermediate voltage is higher than the anode initializing voltage, which is a voltage low enough to stop light emission of the display element and which is applied to the anode electrode to initialize the anode electrode between light emission periods, and the predetermined intermediate voltage is lower than a drive voltage which is a voltage that produces light emission in the display element.