Display panel device, display device, and control method thereof

摘要

A display panel device includes: a luminescence element; a capacitor including first and second capacitor electrodes; a driver having a gate connected to the first capacitor electrode for allowing a drain current to flow through the luminescence element; a first switch switchably interconnecting a data line and the first capacitor electrode for supplying a signal voltage to the capacitor; a second switch switchably interconnecting a source of the driver and the second capacitor electrode; and a controller. The controller is configured to: turn ON the first switch while the second switch is ON to supply the signal voltage to the first capacitor electrode and flow a current between the source of the driver and the second capacitor electrode; and, after predetermined time period, turn OFF the second switch to cause non-conduction between the source of the driver and the second capacitor electrode.