| 主权项 |
1. An electroluminescence display device, comprising:
a plurality of pixel circuits, each of the pixel circuits including:
a light-emitting element to emit light based on a supplied current;a driving transistor to supply the current to the light-emitting element based on a potential of a gate terminal of the driving transistor;a sampling switch to sample a data voltage corresponding to image data at the gate terminal of the driving transistor;a switch transistor to place the driving transistor in a diode-connected state; anda capacitive circuit to store a potential of the gate terminal of the driving transistor, wherein one vertical period in which each of the pixel circuits is driven includes a current gray scale control period and a duty gray scale control period, in the current gray scale control period the current to be supplied to the light-emitting element is controlled based on the data voltage, and in the duty gray scale control period a supplying period of the current provided to the light-emitting element is controlled based on a duty control voltage,wherein the data voltage and the duty control voltage are supplied to a source terminal of the driving transistor in the driving transistor diode-connected state,wherein the duty control voltage has two voltage values, andwherein the supplying period of the current provided to the light-emitting element is controlled based on different ones of the two voltage values of the duty control voltage, the supplying period when each of the pixel circuits is driven at a first gray scale value longer than that the supplying period when each pixel circuit is driven at a second gray scale, the first gray scale value being greater than the second gray scale value. |
