Patent ID: 8576214

Claim:
A display device comprising: a display panel; and a multiple-input single-output circuit configured for supplying a voltage to the display panel, the multiple-input single-output circuit including: a first differential pair formed of first and second transistors and a second differential pair formed of third and fourth transistors, a current mirror transistor section electrically connected to drains of the first, second, third, and fourth transistors of the differential pairs, a first input terminal electrically connected to a gate of the first transistor, a second input terminal electrically connected to a gate of the third transistor, an output terminal electrically connected to gates of the second and fourth transistors, a single constant current source transistor allowing a predetermined current to flow, and a cascode transistor section including first and second cascode transistors whose sources are electrically connected to the constant current source transistor, wherein: sources of the first and second transistors are electrically connected to the constant current source transistor via the first cascode transistor, sources of the third and fourth transistors are electrically connected to the constant current source transistor via the second cascode transistor, gate electrodes of the first and second cascode transistors are electrically connected with each other, and the gate electrodes of the first and second cascode transistors are electrically connected to the same constant voltage so that the first and second cascode transistors equally divide the current of the constant current source transistor.