Liquid crystal display device and method for manufacturing the same
First Claim
1. A display device comprising:
- a light-shielding film and a coloring film formed over a substrate;
an insulating film formed over the light-shielding film and the coloring film;
a thin film transistor formed over the insulating film; and
a pixel electrode electrically connected to the thin film transistor.
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Accused Products
Abstract
In the present invention, it is an object to provide a liquid crystal display device in which a precise position alignment in attaching an active matrix substrate and a counter substrate is unnecessary and also does not affect an application of an electric field to a liquid crystal from an electrode, and a manufacturing method thereof. According to one feature of the present invention, the liquid crystal display device is formed using an active matrix substrate in which a driver circuit including a plurality of TFTs, a wiring, and the like, a pixel portion including a plurality of TFTs, a wiring, a pixel electrode, and the like are formed over a substrate provided with a light-shielding film and a coloring film, and the liquid crystal display device has a structure in which a liquid crystal is injected between the active matrix substrate and the counter substrate.
74 Citations
42 Claims
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1. A display device comprising:
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a light-shielding film and a coloring film formed over a substrate;
an insulating film formed over the light-shielding film and the coloring film;
a thin film transistor formed over the insulating film; and
a pixel electrode electrically connected to the thin film transistor. - View Dependent Claims (3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25)
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2. A display device comprising:
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a light-shielding film and a coloring film formed over a substrate;
an insulating film formed over the light-shielding film and the coloring film; and
a thin film transistor, a pixel electrode, and a common electrode formed over the insulating film, wherein the thin film transistor is electrically connected to the pixel electrode. - View Dependent Claims (4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26)
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27. A method for manufacturing a display device comprising the steps of:
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forming a light-shielding film and a coloring film over a substrate;
forming an insulating film over the light-shielding film and the coloring film;
forming a gate electrode over the insulating film;
forming a gate insulating film over the gate electrode;
forming a first semiconductor film over the gate insulating film;
forming an insulator over the first semiconductor film;
forming a second semiconductor film separated by the insulator over the first semiconductor film;
forming a source electrode and a drain electrode separated by the insulator over the second semiconductor film; and
forming a pixel electrode electrically connected to at lease one of the source electrode and the drain electrode. - View Dependent Claims (29, 31, 33, 35, 37, 39, 41)
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28. A method for manufacturing a display device comprising the steps of:
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forming a light-shielding film and a coloring film over a substrate;
forming an insulating film over the light-shielding film and the coloring film;
forming a gate electrode and a common electrode over the insulating film;
forming a gate insulating film over the gate electrode and the common electrode;
forming a first semiconductor film over the gate insulating film;
forming an insulator over the first semiconductor film;
forming a second semiconductor film separated by the insulator over the first semiconductor film;
forming a source electrode, a drain electrode, and a light-shielding body separated by the insulator over the second semiconductor film; and
forming a pixel electrode electrically connected to at lease one of the source electrode and the drain electrode. - View Dependent Claims (30, 32, 34, 36, 38, 40, 42)
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Specification
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- Resources
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Current AssigneeSemiconductor Energy Laboratory Co., Ltd.
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Original AssigneeSemiconductor Energy Laboratory Co., Ltd.
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InventorsHosoya, Kunio, Fujikawa, Saishi
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Application NumberUS11/450,359Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current349/43CPC Class CodesG02F 1/133345 Insulating layers G02F1/133...G02F 1/136209 Light shielding layers, e.g...G02F 1/136222 Colour filters incorporated...
