Display device having an improved video signal drive circuit
First Claim
1. A display device comprising:
- a plurality of pixels;
a plurality of signal lines connected to the plurality of pixels; and
a drive circuit connected to the plurality of signal lines, the drive circuit comprising a distribution port and a decoder;
wherein the distribution port distributes supplied data to corresponding circuit portions in the decoder, and the decoder selects gray scale voltages based upon the data from the distribution port, the distribution port including a first switching stage having two switching elements and a second switching stage having four switching elements and which is electrically connected to the first switching stage; and
wherein the decoder is disposed between the second switching stage and the plurality of signal lines.
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Accused Products
Abstract
A display device includes a plurality of pixels, a plurality of signal lines connected to the plurality of pixels and a drive circuit connected to the plurality of signal lines. The drive circuit includes a distribution port and a decoder, wherein the distribution port distributes supplied data to corresponding circuit portions in the decoder, and the decoder selects gray scale voltages based upon the data from the distribution port. The distribution port includes a first switching stage having two switching elements and a second switching stage having four switching elements and which is electrically connected to the first switching stage. The decoder is disposed between the second switching stage and the plurality of signal lines.
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Citations
20 Claims
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1. A display device comprising:
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a plurality of pixels;
a plurality of signal lines connected to the plurality of pixels; and
a drive circuit connected to the plurality of signal lines, the drive circuit comprising a distribution port and a decoder;
wherein the distribution port distributes supplied data to corresponding circuit portions in the decoder, and the decoder selects gray scale voltages based upon the data from the distribution port, the distribution port including a first switching stage having two switching elements and a second switching stage having four switching elements and which is electrically connected to the first switching stage; and
wherein the decoder is disposed between the second switching stage and the plurality of signal lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A display device comprising:
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a plurality of pixels;
a plurality of signal lines connected to the plurality of pixels; and
a drive circuit connected to the plurality of signal lines, the drive circuit comprising a distribution port and a decoder;
wherein the distribution port distributes supplied data to corresponding circuit portions in the decoder, and the decoder selects gray scale voltages based upon the data from the distribution port, the distribution port including a first switching stage having two switching elements and which receives serial data, and a second switching stage having four switching elements and which is electrically connected to the first switching stage;
wherein the two switching elements of the first switching stage receive a first clock pulse and a second clock pulse which has an opposite phase from a phase of the first clock pulse, and the four switching elements of the second switching stage receive a third clock pulse and a fourth clock pulse which has an opposite phase from a phase of the third clock pulse; and
wherein the decoder is disposed between the second switching stage and the plurality of signal lines. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification