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US 2012/0256891 A1Published application
Semiconductor circuit, driving circuit of electro-optical device, and electronic apparatus
AssigneeEpson Imaging Devices Corporation
InventorsYutaka KOBASHI, Takashi TOYA
Life of this patent
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Abstract
A semiconductor circuit includes a first circuit block, a second circuit block, and power wiring lines that supply a plurality of reference potentials. The first circuit block and the second circuit block are connected to a common power wiring line that is one of the power wiring lines and supplies a common reference potential. A width of the common power wiring line in the first circuit block is smaller than a width of the common power wiring line in the second circuit block.
Claims20
An electro-optical substrate comprising:
- a display area which has a plurality of scanning lines and a plurality of data lines;
- switching units which are formed to correspondingly connect the scanning lines and the data lines in the display area;
- pixel electrodes which are arranged to correspond to the switching units;
- and
- a driving circuit;
- wherein the driving circuit includes a first circuit block, a second circuit block, and power wiring lines that supply a plurality of reference potentials,
- the first circuit block including at least one of a clock control circuit, a clock generating circuit, a unit shift circuit, a NAND circuit, and an inverter circuit,
- the second circuit block including at least one of a level shift circuit that amplifies a low-amplitude signal to a high-amplitude signal and a buffer circuit that drives the scanning lines,
- wherein the first circuit block and the second circuit block are both connected to a common power wiring line that is one of the power wiring lines and supplies a common reference potential,
- the current consumption of the first circuit block and the second circuit block are different, and
- a width of a first part of the common power wiring line being different than a width of a second part of the common power wiring line,
- the first part of the common power wiring line being in the first circuit block, and
- the second part being in the second circuit block.
10 more elements
An electro-optical device comprising:
- an electro-optical substrate;
- a display area which has a plurality of scanning lines and a plurality of data lines;
- switching units which are formed to correspondingly connect the scanning lines and the data lines in the display area;
- pixel electrodes which are arranged to correspond to the switching units, and
- a driving circuit;
- wherein the driving circuit includes a first circuit block, a second circuit block, and power wiring lines that supply a plurality of reference potentials,
- the first circuit block including at least one of a clock control circuit, a clock generating circuit, a unit shift circuit, a NAND circuit, and an inverter circuit,
- the second circuit block including at least one of a level shift circuit that amplifies a low-amplitude signal to a high-amplitude signal and a buffer circuit that drives the scanning lines,
- wherein the first circuit block and the second circuit block are both connected to a common power wiring line that is one of the power wiring lines and supplies a common reference potential,
- the current consumption of the first circuit block, the second circuit block are different and a DA converter circuit, and
- a width of a first part of the common power wiring line being different than a width of a second part of the common power wiring line,
- the first part of the common power wiring line being in the first circuit block, and
- the second part being in the second circuit block.
10 more elements
Dependencies are inferred from the claim text.