Liquid crystal display device and electronic device
First Claim
1. A liquid crystal display device comprising:
- a first electrode formed over an entire surface of one side of a substrate;
a first insulating film formed over the first electrode, wherein the first insulating film has an opening;
a second insulating film formed over the first insulating film and in the opening of the first insulating film;
a second electrode formed over the second insulating film, wherein the second electrode has a plurality of openings over the opening of the first insulating film; and
a liquid crystal over the second electrode,wherein the liquid crystal is controlled by an electric field between the first electrode and the second electrode.
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Abstract
To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.
75 Citations
12 Claims
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1. A liquid crystal display device comprising:
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a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode, wherein the first insulating film has an opening; a second insulating film formed over the first insulating film and in the opening of the first insulating film; a second electrode formed over the second insulating film, wherein the second electrode has a plurality of openings over the opening of the first insulating film; and a liquid crystal over the second electrode, wherein the liquid crystal is controlled by an electric field between the first electrode and the second electrode. - View Dependent Claims (2, 3, 4)
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5. A method for manufacturing a liquid crystal display device, comprising the steps of:
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forming a first electrode over a first substrate, wherein the first electrode is not patterned; forming a first insulating film over the first electrode without patterning the first electrode, wherein the first insulating film has an opening; forming a second insulating film over the first insulating film and in the opening of the first insulating film; forming a second electrode over the second insulating film, wherein the second electrode has a plurality of openings over the opening of the first insulating film; and attaching a second substrate to the first substrate with a liquid crystal therebetween. - View Dependent Claims (6, 7, 8)
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9. A liquid crystal display device comprising:
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a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode, wherein the first insulating film has an opening; a second insulating film formed over the first insulating film and in the opening of the first insulating film; a second electrode formed over the second insulating film, wherein the second electrode has a plurality of openings over the opening of the first insulating film; and a liquid crystal over the second electrode, wherein the liquid crystal is controlled by an electric field between the first electrode and the second electrode, and wherein a distance between the first electrode and the second electrode in a first region where the second electrode overlaps with the opening of the first insulating film is smaller than that in a second region where the second electrode overlaps with the first insulating film. - View Dependent Claims (10, 11, 12)
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Specification