Display device
First Claim
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1. A semiconductor device comprising:
- a transistor comprising a semiconductor film over a substrate;
an inorganic insulating film over the transistor;
a source line over the inorganic insulating film;
a resin film over the source line;
a first transparent electrode over the resin film;
an insulating film over the first transparent electrode; and
a second transparent electrode over the first transparent electrode, and electrically connected to the transistor,wherein the semiconductor film overlaps the source line, the source line overlaps the first transparent electrode, and the first transparent electrode overlaps the second transparent electrode.
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Abstract
The present invention provides an active matrix type display device having a high aperture ratio and a required auxiliary capacitor. A source line and a gate line are overlapped with part of a pixel electrode. This overlapped region functions to be a black matrix. Further, an electrode pattern made of the same material as the pixel electrode is disposed to form the auxiliary capacitor by utilizing the pixel electrode. It allows a required value of auxiliary capacitor to be obtained without dropping the aperture ratio. Also, it allows the electrode pattern to function as a electrically shielding film for suppressing the cross-talk between the source and gate lines and the pixel electrode.
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Citations
12 Claims
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1. A semiconductor device comprising:
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a transistor comprising a semiconductor film over a substrate; an inorganic insulating film over the transistor; a source line over the inorganic insulating film; a resin film over the source line; a first transparent electrode over the resin film; an insulating film over the first transparent electrode; and a second transparent electrode over the first transparent electrode, and electrically connected to the transistor, wherein the semiconductor film overlaps the source line, the source line overlaps the first transparent electrode, and the first transparent electrode overlaps the second transparent electrode. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A semiconductor device comprising:
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a semiconductor film having a channel over a substrate; a gate insulating film over the semiconductor film; a gate line over the gate insulating film, and overlapping the channel; an inorganic insulating film over the gate line; a source line over the inorganic insulating film; a resin film over the source line; a first transparent electrode over the resin film; an insulating film over the first transparent electrode; and a second transparent electrode over the first transparent electrode, and electrically connected to the semiconductor film, wherein the semiconductor film overlaps the source line, the source line overlaps the first transparent electrode, and the first transparent electrode overlaps the second transparent electrode, and wherein the second transparent electrode covers the source line and the gate line. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification
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Current AssigneeSemiconductor Energy Laboratory Co., Ltd.
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Original AssigneeSemiconductor Energy Laboratory Co., Ltd.
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InventorsZhang, Hongyong, Teramoto, Satoshi
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Primary Examiner(s)Ho, Anthony
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Application NumberUS12/982,255Publication NumberTime in Patent Office1,055 DaysField of Search257/59, 257/72US Class Current257/59CPC Class CodesG02F 1/136209 Light shielding layers, e.g...G02F 1/136213 Storage capacitors associat...G02F 1/136227 Through-hole connection of ...
