Power source circuit, power source for driving a liquid crystal display, and a liquid crystal display device

A method for supplying a plurality of output electric potentials, comprising:

• forming at least one intermediate electric potential between a first electric potential and a second electric potential, the at least one intermediate electric potential being formed by an intermediate electric potential forming unit;
• powering a plurality of output circuit units with a first supply potential and a second supply potential, the first supply potential for each of the output circuit units being either the first electric potential or the second electric potential, the second supply potential being the at least one intermediate electric potential, the first and the second supply potentials being different from each other, and a capacitor being connected between the at least one intermediate electric potential and at least one of the first and second electric potentials;
• and
• supplying the plurality of output electric potentials through the plurality of output circuit units.

A liquid crystal display device that includes a power source circuit, the power source circuit comprising:

• a plurality of output circuit units which supply a plurallity of output electric potentials based on a plurality of input electric potentials;
• and
• an intermediate electric potential forming unit which forms at least one intermediate electric potential between a first electric potential and a second electric potential, the first electric potential being different from the second electric potential, a first supply potential and a second supply potential supplying power to the plurality of output circuit units, the first supply potential for each of the output circuit units being one of the first electric potential and the second electric potential, and the second supply potential being the at least one intermediate electric potential, the first and the second supply potentials being different from each other;
• and
• a capacitor connected between one of the at least one intermediate electric potential and at least one of the first and second electric potentials.

A power source circuit, comprising:

• a plurality of output circuit units which supply a plurality of output electric potentials based on a plurality of input electric potentials;
• an intermediate electric potential forming unit which forms at least one intermediate electric potential between a first electric potential and a second electric potential, the first electric potential being different from the second electric potential, a first supply potential and a second supply potential supplying power to the plurality of output circuit units, the first and second supply potential being different from each other, the second supply potential for each of the output circuit units being the at least one intermediate electric potential and the first supply potential for each of the output circuit units being either the first electric potential or the second electric potential;
• and
• a limiting circuit setting an upper limit electric potential and a lower limit electric potential of the at least one intermediate electric potential.

A power source circuit, comprising:

• a plurality of output circuit units which supply a plurality of output electric potentials based on a plurality of input electric potentials;
• an intermediate electric potential forming unit which forms a plurality of intermediate electric potential between a first electric potential and a second electric potential, the first electric potential being different from the second electric potential, a first supply potential and a second supply potential supplying power to the plurality of output circuit units, the first and second supply potential being different from each other, the second supply potential for a first one of the output circuit units being a first one of the plurality of intermediate electric potentials and the second supply potential for a second one of the output circuit units being a second one of the plurality of intermediate electric potentials, and the first supply potential for each of the output circuit units being one of the first electric potential and the second electric potential;
• and
• a diode connected between the first one of the intermediate electric potentials and the second one of the intermediate electric potentials.