LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME
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Abstract
An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
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Citations
11 Claims
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1. (canceled)
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2. A light emitting device comprising:
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a substrate; a first conductive layer over the substrate; a first oxide insulating layer over the first conductive layer; an oxide semiconductor layer over the first oxide insulating layer; a second oxide insulating layer over the oxide semiconductor layer; a second conductive layer over the second oxide insulating layer; a third conductive layer and a fourth conductive layer electrically connected to the oxide semiconductor layer; a color filter layer over the second conductive layer; an insulating layer over the color filter layer; and a light emitting element over the insulating layer, wherein a same potential is applied to the first conductive layer and the second conductive layer, wherein each of the first conductive layer, the second conductive layer, the third conductive layer, and the fourth conductive layer contains titanium, and wherein the insulating layer is configured to reduce roughness of the color filter layer. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification