COLOR FILTER USING SURFACE PLASMON AND LIQUID CRYSTAL DISPLAY DEVICE
First Claim
1. A color filter using a surface plasmon, the color filter comprising:
- a first sub-color filter for implementing a red color by forming a first sub-wavelength transmissive pattern having a predetermined period on a first metal layer;
a second sub-color filter for implementing a green color by forming a second sub-wavelength transmissive pattern having a predetermined period on a second metal layer; and
a third sub-color filter for implementing a blue color by forming a third sub-wavelength transmissive pattern having a predetermined period on a third metal layer,wherein the first to third sub-color filters are tangent to one another in a hexagonal shape, and lines connecting centers of the first to third sub-color filters to one another form a triangle.
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Abstract
Discussed are a color filter using a surface plasmon and a liquid crystal display (LCD) device, the color filter capable of enhancing a transmittance ratio of an LC panel by having a 3D pattern structure of a transmissive pattern for selectively transmitting light of a specific wavelength, and capable of simplifying entire processes. According to the color filter using a surface plasmon and the LCD device, not only three colors of RGB but also multi-colors can be implemented, and color reproduction can be enhanced by optimizing arrangement of the transmissive pattern according to the number of colors to be implemented.
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Citations
19 Claims
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1. A color filter using a surface plasmon, the color filter comprising:
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a first sub-color filter for implementing a red color by forming a first sub-wavelength transmissive pattern having a predetermined period on a first metal layer; a second sub-color filter for implementing a green color by forming a second sub-wavelength transmissive pattern having a predetermined period on a second metal layer; and a third sub-color filter for implementing a blue color by forming a third sub-wavelength transmissive pattern having a predetermined period on a third metal layer, wherein the first to third sub-color filters are tangent to one another in a hexagonal shape, and lines connecting centers of the first to third sub-color filters to one another form a triangle.
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2. A color filter using a surface plasmon, the color filter comprising:
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a first sub-color filter for implementing a red color by forming a first sub-wavelength transmissive pattern having a predetermined period on a first metal layer; a second sub-color filter for implementing a green color by forming a second sub-wavelength transmissive pattern having a predetermined period on a second metal layer; a third sub-color filter for implementing a blue color by forming a third sub-wavelength transmissive pattern having a predetermined period on a third metal layer; and a fourth sub-color filter for implementing a yellow color or a cyan color by forming a fourth sub-wavelength transmissive pattern having a predetermined period on a fourth metal layer, wherein the first to fourth sub-color filters are tangent to one another in a quadrangular shape, and lines connecting centers of the first to fourth sub-color filters to one another form a quadrangle.
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3. A color filter using a surface plasmon, the color filter comprising:
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a first sub-color filter for implementing a red color by forming a first sub-wavelength transmissive pattern having a predetermined period on a first metal layer; a second sub-color filter for implementing a green color by forming a second sub-wavelength transmissive pattern having a predetermined period on a second metal layer; a third sub-color filter for implementing a blue color by forming a third sub-wavelength transmissive pattern having a predetermined period on a third metal layer; a fourth sub-color filter for implementing a yellow color by forming a fourth sub-wavelength transmissive pattern having a predetermined period on a fourth metal layer; and a fifth sub-color filter for implementing a cyan color by forming a fifth sub-wavelength transmissive pattern having a predetermined period on a fifth metal layer, wherein four of the first to fifth sub-color filters are tangent to one another in a quadrangular shape, and the rest one sub-color filter is positioned inside the quadrangle in a diamond shape.
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4. A liquid crystal display (LCD) device, comprising:
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a first substrate; a color filter formed on the first substrate, for implementing RGB colors by forming, on first to third metal layers, first to third sub-wavelength transmissive patterns each having a predetermined period; a thin film transistor formed on the first substrate having the color filter formed thereon; and a second substrate bonded to the first substrate with facing the first substrate, wherein first to third sub-color filters of the color filter are tangent to one another in a hexagonal shape, and lines connecting centers of the first to third sub-color filters to one another form a triangle. - View Dependent Claims (5, 6, 7)
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8. A liquid crystal display (LCD) device, comprising:
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a first substrate; a color filter formed on the first substrate, for implementing RGBY or RGBC colors by forming, on first to fourth metal layers, first to fourth sub-wavelength transmissive patterns each having a predetermined period; a thin film transistor formed on the first substrate having the color filter formed thereon; and a second substrate bonded to the first substrate with facing the first substrate, wherein first to fourth sub-color filters of the color filter are tangent to one another in a quadrangular shape, and lines connecting centers of the first to fourth sub-color filters to one another form a quadrangle. - View Dependent Claims (9, 10, 11)
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12. A liquid crystal display (LCD) device, comprising:
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a first substrate; a color filter formed on the first substrate, for implementing RGBYC colors by forming, on first to fifth metal layers, first to fifth sub-wavelength transmissive patterns each having a predetermined period; a thin film transistor formed on the first substrate having the color filter formed thereon; and a second substrate bonded to the first substrate with facing the first substrate, wherein four of first to fifth sub-color filters of the color filter are tangent to one another in a quadrangular shape, and the rest one sub-color filter is positioned inside the quadrangle in a diamond shape. - View Dependent Claims (13, 14, 15)
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16. A liquid crystal display (LCD) device, comprising:
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a first substrate; a color filter formed on the first substrate, for implementing RGBYC colors by forming, on first to fifth metal layers, first to fifth sub-wavelength transmissive patterns each having a predetermined period; a thin film transistor formed on the first substrate having the color filter formed thereon; and a second substrate bonded to the first substrate with facing the first substrate, wherein first to fifth sub-color filters of the color filter are sequentially arranged in a quadrangular shape to have a form of stripes. - View Dependent Claims (17, 18, 19)
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Specification