Surface light source using light emitting diode and liquid crystal display backlight unit employing the same
First Claim
1. A surface light source comprising:
- a plurality of light source clusters arrayed along first and second directions, each of the clusters including three light emitting diodes disposed in a triangular arrangement, the three light emitting diodes including green, red and blue light emitting diodes;
a first array of the clusters lined along and inverted alternately about the first direction; and
a second array of the clusters lined along and inverted alternately about the second direction, the first array being perpendicular to the second array.
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Accused Products
Abstract
A surface light source capable of reducing color stains with reduced number of light emitting diodes and manufactured at low costs, and a liquid crystal display backlight unit employing the same. The surface light source includes a plurality of light source clusters arrayed along first and second directions, each of the clusters including three light emitting diodes disposed in a triangular arrangement, the three light emitting diodes including green, red and blue light emitting diodes. The surface light source also includes a first array of the clusters lined along and inverted alternately about the first direction; and a second array of the clusters lined along and inverted alternately about the second direction, where the first array is perpendicular to the second array. The invention reduces color stains to achieve uniform white light and reduces the number of light emitting diodes to manufacture a product at low costs.
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Citations
10 Claims
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1. A surface light source comprising:
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a plurality of light source clusters arrayed along first and second directions, each of the clusters including three light emitting diodes disposed in a triangular arrangement, the three light emitting diodes including green, red and blue light emitting diodes;
a first array of the clusters lined along and inverted alternately about the first direction; and
a second array of the clusters lined along and inverted alternately about the second direction, the first array being perpendicular to the second array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A liquid crystal display backlight unit attached to a liquid crystal display panel, comprising:
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a plurality of light source clusters arrayed along first and second directions, each of the clusters including three light emitting diodes disposed in a triangular arrangement, the three light emitting diodes including green, red and blue light emitting diodes, a first array of the clusters lined along and inverted alternately about the first direction, and a second array of the clusters lined along and inverted alternately about the second direction, the first array being perpendicular to the second array;
a diffusion sheet for uniformly diffusing the light incident from the surface light source; and
a light collecting sheet for collecting the light diffused by the diffusion sheet. - View Dependent Claims (10)
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Specification