A device for driving a light-emitting diode, a light-emitting device, and a display device are disclosed. The disclosed light-emitting diode driving device may include: a first transistor having a first conductive electrode connected with a source voltage terminal and having a second conductive electrode connected with an input terminal of the light-emitting diode; a second transistor having a control electrode connected with the second conductive electrode of the first transistor; and a capacitor having one end connected with a data voltage terminal and having the other end connected with a first node, which is connected with a control electrode of the first transistor and with a first conductive electrode of the second transistor.
