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US 6,606,137 B2Granted
Method of fabricating color filter using a single mask having plurality of patterns, each having different aperture ratios
AssigneeLG. Philips LCD Co., Ltd.
InventorHyun Kyu Lee
Life of this patent
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Abstract
A method of fabricating a color filter that is adaptive for reducing an exposure process of the color filter. In the method, a material layer for forming the color filter in which a color changes in accordance with an exposed light quantity is formed on a transparent substrate. Three primary color filters are formed by differentiating the amount of exposed light on the material layer.
Claims20
A method of fabricating a color filter for a liquid crystal display comprising:
- forming a black matrix on a substrate, the substrate being divided into multiple areas;
- forming a light responsive material on to substrata and the black matrix, the light responsive material being capable of changing color depending on an amount of light exposed onto the material;
- exposing light onto the light responsive material corresponding to the multiple areas of the substrate, wherein the amount of light exposed is different for three areas of the substrate, and wherein a single exposure is performed using a single mask having a plurality of patterns, each having different aperture ratios;
- and
- forming three color filters corresponding to the three areas, the three color filters having different colors.
2 more elements
A method of fabricating a color filter comprising:
- forming a layer of material on a substrate, the material being capable of changing to a color in accordance with an amount of light exposed;
- and
- forming three color filters by simultaneously exposing different amounts of light on different areas of the material, and wherein a single exposure is performed using a single mask having a plurality of patterns, each having different aperture ratios.
Dependencies are inferred from the claim text.