Display device and driving method thereof

摘要

A display device includes a light emitting element (LD), a capacitor (CST), a driving transistor (Qd), and first to third switching units. The capacitor is connected between a first node (N1) and a second node (N2). The driving transistor has an input terminal connected with a first voltage (Vdd), an output terminal, and a control terminal connected with the second node, and it outputs a driving current (ILD) to the light emitting element. The first switching unit (SW1,SW2) selects and connects one of a data voltage (Vdat) and a second voltage (Vsus) to the first node. The second switching unit (SW3) switches a connection between the second voltage and the second node. The third switching unit (SW4,SW5) selects and connects one of the second node and the light emitting element to the output terminal of the driving transistor.