US 2002/0175904 A1 · Driving circuit and display comprising the same

Abstract

A driving circuit capable of implementing voltage reduction and attaining high-speed operation and high precision while controlling currents consumed by two through current control transistors independently of each other is obtained. This driving circuit comprises a first differential circuit including a first through current control transistor, a second differential circuit including a second through current control transistor and an output circuit including a first conductivity type first output transistor having a gate supplied with an output of the first differential circuit and a second conductivity type second output transistor having a gate supplied with an output of the second differential circuit. A first potential is supplied to the gate of the first through current control transistor of the first differential circuit while a second potential is supplied to the gate of the second through current control transistor of the second differential circuit.

Claims20

Dependent claims

A driving circuit comprising:

a first differential circuit, connected between a first voltage source and a second voltage source, receiving a prescribed reference voltage and including a first through current control transistor;
a second differential circuit, connected between said first voltage source and said second voltage source, receiving said prescribed reference voltage and including a second through current control transistor;
and
an output circuit including a first conductivity type first output transistor having a gate supplied with an output of said first differential circuit and a second conductivity type second output transistor having a gate supplied with an output of said second differential circuit, wherein
a first potential is supplied to the gate of said first through current control transistor of said first differential circuit while a second potential is supplied to the gate of said second through current control transistor of said second differential circuit.

2 more elements

A display comprising a driving circuit and a pixel part connected to a data line, wherein

said driving circuit includes:
a first differential circuit, connected between a first voltage source and a second voltage source, receiving a prescribed reference voltage and including a first through current control transistor,
a second differential circuit, connected between said first voltage source and said second voltage source, receiving said prescribed reference voltage and including a second through current control transistor, and
an output circuit including a first conductivity type first output transistor having a gate supplied with an output of said first differential circuit and a second conductivity type second output transistor having a gate supplied with an output of said second differential circuit, and
a first potential is supplied to the gate of said first through current control transistor of said first differential circuit while a second potential is supplied to the gate of said second through current control transistor of said second differential circuit.

2 more elements

Dependencies are inferred from the claim text.

Driving circuit and display comprising the same

Life of this patent

Driving circuit and display comprising the same

Life of this patent

Abstract

Claims20