Patent ID: 8441418
Filing Date: 2013-05-14
Classification: G09G,H01L

Abstract:
1. A driving method of a light-emitting device comprising: a driving transistor; an electroluminescence element; a first transistor; a first power source; and a second power source, wherein one of a source and a drain of the driving transistor is electrically connected to the first power source, and the other of the source and the drain of the driving transistor is electrically connected to one of a source and a drain of the first transistor and a first electrode of the electroluminescence element, and wherein a second electrode of the electroluminescence element is electrically connected to the second power source, comprising the steps of: detecting a first potential of the first electrode of the electroluminescence element through the first transistor in a first period in which the driving transistor is on-state; detecting a second potential of the first electrode of the electroluminescence element through the first transistor in a second period in which the driving transistor is on-state; and changing a reference potential of the second power source based on a difference between the first potential and the second potential, so that a reduction in luminance of the electroluminescence element is compensated.