Display device
First Claim
1. A display device comprising:
- a first gate electrode;
a first gate insulating film over the first gate electrode;
an oxide semiconductor film over the first gate insulating film;
a source electrode and a drain electrode over the oxide semiconductor film, wherein the source electrode and the drain electrode are electrically connected to the oxide semiconductor film;
a second gate insulating film over the source electrode, the drain electrode and the oxide semiconductor film;
a second gate electrode over the second gate insulating film; and
an organic resin film over the second gate insulating film,wherein the organic resin film does not overlap the second gate electrode.
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Accused Products
Abstract
One object is to provide a transistor including an oxide semiconductor film which is used for the pixel portion of a display device and has high reliability. A display device has a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film; a source electrode and a drain electrode over the oxide semiconductor film; a second gate insulating film over the source electrode, the drain electrode and the oxide semiconductor film; a second gate electrode over the second gate insulating film; an organic resin film having flatness over the second gate insulating film; a pixel electrode over the organic resin film having flatness, wherein the concentration of hydrogen atoms contained in the oxide semiconductor film and measured by secondary ion mass spectrometry is less than 1×1016 cm−3.
183 Citations
21 Claims
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1. A display device comprising:
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a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film; a source electrode and a drain electrode over the oxide semiconductor film, wherein the source electrode and the drain electrode are electrically connected to the oxide semiconductor film; a second gate insulating film over the source electrode, the drain electrode and the oxide semiconductor film; a second gate electrode over the second gate insulating film; and an organic resin film over the second gate insulating film, wherein the organic resin film does not overlap the second gate electrode. - View Dependent Claims (3, 5, 7, 9)
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2. A display device comprising:
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a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film; a source electrode and a drain electrode in contact with the oxide semiconductor film; a second gate insulating film over the source electrode, the drain electrode and the oxide semiconductor film; a second gate electrode over the second gate insulating film; and an organic resin film over the second gate insulating film, wherein the organic resin film does not overlap the second gate electrode. - View Dependent Claims (4, 6, 8, 10)
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11. A semiconductor device comprising:
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a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film, the oxide semiconductor film comprising a channel region, the channel region including indium, zinc and gallium; a second gate insulating film over the oxide semiconductor film; and a second gate electrode over the second gate insulating film, wherein the second gate electrode overlaps the first gate electrode with the oxide semiconductor film therebetween, wherein the channel region comprises a crystalline region in which c-axis is oriented in a direction substantially perpendicular to a surface of the oxide semiconductor film. - View Dependent Claims (12, 13)
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14. A display device comprising:
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a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film, the oxide semiconductor film comprising a channel region, the channel region including indium, zinc and gallium; a source electrode and a drain electrode over the oxide semiconductor film, wherein the source electrode and the drain electrode are electrically connected to the oxide semiconductor film; a second gate insulating film over the oxide semiconductor film; a second gate electrode over the second gate insulating film, wherein the second gate electrode overlaps the first gate electrode with the oxide semiconductor film therebetween, an organic resin film over the second gate insulating film, wherein the organic resin film does not overlap the second gate electrode; and a pixel electrode over the organic resin film, wherein the channel region comprises a crystalline region in which c-axis is oriented in a direction substantially perpendicular to a surface of the oxide semiconductor film. - View Dependent Claims (15, 16)
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17. A display device comprising:
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a first gate electrode; a first gate insulating film over the first gate electrode; an oxide semiconductor film over the first gate insulating film, the oxide semiconductor film comprising a channel region, the channel region including indium, zinc and gallium; a source electrode and a drain electrode electrically connected to the oxide semiconductor film; a second gate insulating film over the oxide semiconductor film; a second gate electrode over the second gate insulating film, wherein the second gate electrode is overlapped with the first gate electrode with the oxide semiconductor film therebetween; and a pixel electrode electrically connected to one of the source electrode and the drain electrode, wherein the channel region comprises microcrystals, and particle size of the microcrystals is equal to or less than 4 nm. - View Dependent Claims (18, 19, 20, 21)
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Specification