LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME
First Claim
1. A liquid crystal display device comprising:
- a first substrate and a second substrate;
a liquid crystal layer containing a liquid crystal material exhibiting a blue phase between the first substrate and the second substrate;
a plurality of structure bodies over the first substrate and between the first substrate and the second substrate;
a first electrode layer over the plurality of structure bodies;
an insulating layer over the first electrode layer; and
a second electrode layer which overlaps the first electrode layer with the insulating layer interposed therebetween,wherein the plurality of structure bodies are arranged at regular intervals,wherein an angle between each of side surfaces of the plurality of structure bodies and a plane surface of the first substrate is less than 90°
,wherein the second electrode layer overlaps at least one of the side surfaces of the plurality of structure bodies with the first electrode layer and the insulating layer interposed therebetween, andwherein the second electrode layer includes a plurality of openings.
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Accused Products
Abstract
A liquid crystal display device using a liquid crystal exhibiting a blue phase and having a novel structure, and a method for manufacturing the liquid crystal display device. A plurality of structure bodies (also referred to as ribs, protrusions, or projecting portions) are formed over the same substrate, and a pixel electrode and an electrode (a common electrode at a fixed potential) corresponding to the pixel electrode are formed thereover. An electric field is applied to the liquid crystal layer exhibiting a blue phase by using the pixel electrode that has an inclination and the electrode corresponding to the pixel electrode, which also has an inclination. A shorter distance between the adjacent structure bodies allows a strong electric field to be applied to the liquid crystal layer, which results in a reduction in power consumption for driving the liquid crystal.
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Citations
18 Claims
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1. A liquid crystal display device comprising:
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a first substrate and a second substrate; a liquid crystal layer containing a liquid crystal material exhibiting a blue phase between the first substrate and the second substrate; a plurality of structure bodies over the first substrate and between the first substrate and the second substrate; a first electrode layer over the plurality of structure bodies; an insulating layer over the first electrode layer; and a second electrode layer which overlaps the first electrode layer with the insulating layer interposed therebetween, wherein the plurality of structure bodies are arranged at regular intervals, wherein an angle between each of side surfaces of the plurality of structure bodies and a plane surface of the first substrate is less than 90°
,wherein the second electrode layer overlaps at least one of the side surfaces of the plurality of structure bodies with the first electrode layer and the insulating layer interposed therebetween, and wherein the second electrode layer includes a plurality of openings. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A liquid crystal display device comprising:
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a first substrate and a second substrate; a liquid crystal layer containing a liquid crystal material exhibiting a blue phase between the first substrate and the second substrate; a first structure body, a second structure body, and a third structure body over the first substrate and between the first substrate and the second substrate; a first electrode layer over the first structure body, the second structure body, and the third structure body; an insulating layer over the first electrode layer; and a second electrode layer which overlaps a side surface of the first structure body and a side surface of the third structure body with the insulating layer interposed therebetween, wherein the second electrode layer includes an opening, wherein the first structure body, the second structure body, and the third structure body are arranged at regular intervals, wherein the second structure body is provided between the first structure body and the third structure body, and wherein the opening of the second electrode layer overlaps the second structure body. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for manufacturing a liquid crystal display device comprising the steps of:
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forming a gate electrode layer over a first substrate; forming a plurality of structure bodies over the first substrate; forming a first electrode layer over the plurality of structure bodies; forming an insulating layer to cover the gate electrode layer and the first electrode layer; forming a semiconductor layer over the insulating layer, which overlaps the gate electrode layer; forming a conductive layer over the semiconductor layer; forming a second electrode layer over the conductive layer, the second electrode layer being electrically connected to the semiconductor layer; and fixing a second substrate to the first substrate with a liquid crystal layer interposed therebetween, wherein the second electrode layer partly overlaps the plurality of structure bodies, the first electrode layer, and the insulating layer. - View Dependent Claims (16, 17, 18)
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Specification