BACK LIGHT APPARATUS AND CONTROL METHOD THEREOF
First Claim
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1. A back light apparatus comprising:
- a back light part which emits light to a liquid crystal display panel, the back light part comprising a plurality of light emitting diodes (LEDs) respectively corresponding to a plurality of colors;
a detecting part which detects the light emitted by the plurality of the LEDs;
a driving part which drives the LEDs to generate an emission; and
a controller which controls the driving part to make color ratios substantially equal a reference value if the reference value does not equal one of the color ratios between at least two of the plurality of colors of the light detected in the detecting part.
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Abstract
A back light apparatus includes a back light part which emits light to a liquid crystal display panel, and includes a plurality of LEDs respectively corresponding to a plurality of colors, a detecting part which detects the light emitted from the plurality of the LEDs, a driving part which drives the LEDs to emit, and a controller which controls the driving part to make color ratios substantially equal to a reference value if the reference value is not equal to the color ratio between at least two colors among the plurality of colors of the light detected in the detecting part.
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Citations
20 Claims
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1. A back light apparatus comprising:
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a back light part which emits light to a liquid crystal display panel, the back light part comprising a plurality of light emitting diodes (LEDs) respectively corresponding to a plurality of colors; a detecting part which detects the light emitted by the plurality of the LEDs; a driving part which drives the LEDs to generate an emission; and a controller which controls the driving part to make color ratios substantially equal a reference value if the reference value does not equal one of the color ratios between at least two of the plurality of colors of the light detected in the detecting part. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control method of a back light apparatus which emits light to a liquid crystal display panel and comprises a plurality of light emitting diodes (LEDs) respectively corresponding to a plurality of colors, the control method comprising:
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detecting the plurality of colors of the light emitted from the plurality of the LEDs; calculating a color ratio between at least two of the plurality of detected colors; and adjusting a brightness of the LEDs to make the color ratio equals a reference value if the reference value does not equal the calculated color ratio. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer readable medium storing a set of instructions for performing a control method of a back light apparatus which emits light to a liquid crystal display panel and comprises a plurality of light emitting diodes (LEDs) respectively corresponding to a plurality of colors, comprising:
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detecting the plurality of colors of the light emitted from the plurality of the LEDs; calculating a color ratio between at least two of the plurality of detected colors; and adjusting a brightness of the LEDs so that the color ratio equals a reference value if the reference value does not equal the calculated color ratio. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification