Liquid crystal displays having multi-domains and a manufacturing method thereof
First Claim
1. A liquid crystal display comprising:
- a first substrate;
a common electrode which is formed on the first substrate;
a plurality of protrusions formed on the common electrode;
a second substrate facing the first substrate; and
a pixel electrode having a plurality of aperture formed on the second substrate.
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Abstract
A black matrix and a color filter are formed on a substrate, a indium-tin-oxide (ITO) common electrode are deposited thereon and then protrusion pattern made of sensitive material such as photoresist are formed on the common electrode with 3 to 20 micron width. A vertical alignment layer is coated thereon to complete a color filter substrate. After a thin film transistor (TFT) and a passivation film are formed on the other substrate, ITO is deposited on the passivation film and patterned to form a pixel electrode which contains open areas with 3 to 20 micron width. Then, a vertical alignment layer is coated to complete a TFT substrate. Two substrates are assembled in the manner that the apertures and the protrusion patterns are arranged on shifts and liquid crystal having negative dielectric anisotropy is injected between the substrates. Each Polarizer is attached at the outer surfaces of the LCD substrates. Compensation films may be attached between the polarizer and the substrate.
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Citations
51 Claims
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1. A liquid crystal display comprising:
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a first substrate;
a common electrode which is formed on the first substrate;
a plurality of protrusions formed on the common electrode;
a second substrate facing the first substrate; and
a pixel electrode having a plurality of aperture formed on the second substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A liquid crystal display comprising:
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a first substrate including a pixel electrode having at least a wedge-shaped aperture; and
a second substrate which is opposite the first substrate and includes a common electrode and at least a wedge-shaped protrusion on the common electrode, the protrusion being parallel and alternate to the aperture. - View Dependent Claims (41, 42, 43, 44, 45, 46)
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47. A liquid crystal display comprising:
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a first substrate;
a common electrode formed on the first substrate;
a plurality of protrusions formed on the common electrode;
a second substrate facing the first substrate;
a pixel electrode having a plurality of apertures formed on the second substrate; and
a liquid crystal layer having negative dielectric anisotropy which is interposed between the first substrate and the second substrate, wherein the liquid crystal layer has four domains which have different tilt directions due to the apertures and the protrusions, and the long axes of molecules in the liquid crystal layer in the adjacent domains are perpendicular to each other.
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48. A manufacturing method of a liquid crystal display comprising the steps of:
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forming a plurality of protrusions a first substrate;
forming a pixel electrode having a plurality of apertures on a second substrate; and
assembling the first substrate and the second substrate such that the protrusions and the apertures are alternately arranged. - View Dependent Claims (49, 50, 51)
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Specification