DISPLAY DEVICE AND OUTPUT BUFFER CIRCUIT FOR DRIVING THE SAME

摘要

Disclosed herein is a display device including: a plurality of pixel circuits; a power source line connected to corresponding ones of the plurality of pixel circuits; and an output buffer circuit for supplying currents to corresponding ones of the plurality of pixel circuits by alternately applying a first potential applied to a first power source supply terminal, and a second potential applied to a second power source supply terminal to the power source line. The output buffer includes a variable resistance circuit connected to a path between the first power source supply terminal and the power source line, the variable resistance circuit serving to change a resistance value thereof in accordance with a magnitude of a total sum of the currents.

主权项

1. An organic EL display device, comprising:
a plurality of pixel circuits; a first control line electrically connected to corresponding ones of the plurality of pixel circuits; and a first control driving circuit including:
a first potential line electrically connected through a first signal path to the first control line such that a first signal appearing on the first terminal can be selectively applied as a corresponding output signal to the first control line;a second potential line electrically connected through a second signal path to the first control line such that a second signal appearing on the second potential line can be selectively applied as a corresponding output signal to the first control line; anda variable resistance circuit,wherein:
the first control driving circuit is configured to supply signals to the corresponding ones of the plurality of pixel circuits by applying a selected corresponding output signal corresponding to either the first signal or the second signal to the first control line; and the variable resistance circuit comprises a transistor with a gate thereof connected to the first control line.