LIQUID CRYSTAL DISPLAY DEVICE, SEMICONDUCTOR DEVICE, AND ELECTRONIC APPLIANCE
First Claim
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1. A liquid crystal display device comprising;
- a first substrate;
a semiconductor film comprising a channel formation region over the first substrate;
a gate electrode adjacent to the channel formation region with a gate insulating film interposed between the semiconductor film and the gate electrode;
a pixel electrode over the first substrate;
a conductive film over the pixel electrode, the conductive film electrically connected to the pixel electrode;
an insulating film over the pixel electrode;
a common electrode over the insulating film;
a liquid crystal provided over the common electrode; and
a second substrate over the liquid crystal,wherein the conductive film is electrically connected to the semiconductor film.
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Abstract
The liquid crystal display device includes an island-shaped first semiconductor film 102 which is formed over a base insulating film 101 and in which a source 102d, a channel forming region 102a, and a drain 102b are formed; a first electrode 102c which is formed of a material same as the first semiconductor film 102 to be the source 102d or the drain 102b and formed over the base insulating film 101; a second electrode 108 which is formed over the first electrode 102c and includes a first opening pattern 112; and a liquid crystal 110 which is provided over the second electrode 108.
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Citations
36 Claims
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1. A liquid crystal display device comprising;
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a first substrate; a semiconductor film comprising a channel formation region over the first substrate; a gate electrode adjacent to the channel formation region with a gate insulating film interposed between the semiconductor film and the gate electrode; a pixel electrode over the first substrate; a conductive film over the pixel electrode, the conductive film electrically connected to the pixel electrode; an insulating film over the pixel electrode; a common electrode over the insulating film; a liquid crystal provided over the common electrode; and a second substrate over the liquid crystal, wherein the conductive film is electrically connected to the semiconductor film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A liquid crystal display device comprising:
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a first substrate; a semiconductor film comprising a channel formation region over the first substrate; a gate electrode adjacent to the channel formation region with a gate insulating film interposed between the semiconductor film and the gate electrode; a pixel electrode over the first substrate; a conductive film over the pixel electrode, the conductive film electrically connected to the pixel electrode; an insulating film over the pixel electrode; a common electrode over the insulating film; a liquid crystal provided over the common electrode; and a second substrate over the liquid crystal, wherein the conductive film is electrically connected to the semiconductor film, and wherein the channel formation region of the semiconductor film does not overlap the pixel electrode. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A liquid crystal display device comprising:
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a first substrate; a semiconductor film comprising a channel formation region over the first substrate; a gate electrode adjacent to the channel formation region with a gate insulating film interposed between the semiconductor film and the gate electrode; a pixel electrode over the first substrate; a conductive film over the pixel electrode, the conductive film electrically connected to the pixel electrode; a first insulating film over the pixel electrode; a second insulating film over the first insulating film; a common electrode over the first insulating film; a liquid crystal provided over the common electrode; and a second substrate over the liquid crystal, wherein the conductive film is electrically connected to the semiconductor film. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A liquid crystal display device comprising:
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a first substrate; a semiconductor film comprising a channel formation region over the first substrate; a gate electrode adjacent to the channel formation region with a gate insulating film interposed between the semiconductor film and the gate electrode; a pixel electrode over the first substrate; a conductive film over the pixel electrode, the conductive film electrically connected to the pixel electrode; an insulating film over the pixel electrode; a common electrode over the insulating film; a liquid crystal provided over the common electrode; and a second substrate over the liquid crystal, wherein the conductive film is electrically connected to the semiconductor film, wherein the channel formation region of the semiconductor film does not overlap the pixel electrode, and wherein the common electrode includes an opening. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification