| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving method of a light emitting device, in which when an n-type driving TFT is connected to an anode of a light emitting element or a p-type driving TFT is connected to a cathode thereof, the driving TFT operates in a saturation region and an image can be displayed with a desired gray scale level depending on a video signal, and provide a light emitting device adopting the driving method.SOLUTION: According to the invention, when a potential having image data is supplied to a gate of a driving TFT depending on a video signal, a reverse bias voltage is applied to the driving TFT and a light emitting element which are connected in series with each other. Meanwhile, when a pixel displays an image depending on the video signal, a forward bias voltage is applied to the driving TFT and the light emitting element. |
