主权项 |
1. An active-matrix-type light-emitting device comprising:
a pixel circuit including:
a light-emitting element,a holding capacitance that holds a voltage according to data,a driving transistor that supplies a driving current to the light-emitting element according to the voltage of the holding capacitance,a control transistor that writes the data to the holding capacitance when a write control signal is applied during a writing period, the control transistor including a first control transistor and a second control transistor, a gate of the first control transistor being connected to a gate of the second control transistor, anda light-emission control transistor that electrically connects between the light-emitting element and the driving transistor when an emission control signal is applied during an emission period that occurs after the writing period; a first scanning line that supplies to the control transistor a writing control signal that controls ON/OFF of the control transistor; a second scanning line that supplies to the light-emission control transistor a light-emitting control signal that controls ON/OFF of the light-emission control transistor; a data line that supplies the data to the pixel circuit; and a first driver circuit that outputs the writing control signal to the first scanning line through a first output buffer, the first output buffer including a plurality of parallel-connected first transistors, and a second driver circuit that outputs the light-emitting control signal to the second scanning line through a second output buffer, the second output buffer including a plurality of parallel-connected second transistors, the number of the plurality of second transistors being smaller than the number of the plurality of first transistors, wherein a changing period, from a start of a change of an electric potential of the second scanning line to a convergence of the changing of the electric potential of the scanning line produced by supplying the second control signal, includes a first changing period and a second changing period, wherein the first changing period is produced by supplying one signal of the second control signal that controls ON of the light-emission control transistor, wherein the second changing period is produced by supplying other signal of the second control signal that controls OFF of the light-emission control transistor, and wherein the first changing period is shorter than one horizontal synchronization period (1H), and the second changing period is longer than the one horizontal synchronization period (1H). |