METHOD FOR DRIVING A LIGHT SOURCE AND LIGHT SOURCE APPARATUS FOR PERFORMING THE METHOD
First Claim
1. A method for driving a light source, the light source comprising light-emitting blocks, each of the light-emitting blocks including a first-color light source which emits first-color light and a second-color light source which emits second-color light, the second-color light source comprising a third-color chip and a fourth-color phosphor disposed on the third-color chip, the third color chip and the fourth-color phosphor disposed as one package to emit the second-color light therefrom, the method comprising:
- compensating a driving current of the first-color light source and a driving current of the second-color light source of each of the light-emitting blocks to generate a compensated driving current of the first-color light source and a compensated driving current of the second-color light source; and
driving the first-color light source and the second-color light source based on the compensated driving current of the first-color light source and the compensated driving current of the second-color light source, respectively.
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Accused Products
Abstract
A light source apparatus includes light-emitting blocks, a local dimming control part and a light source driving part driving. The light-emitting blocks include a first-color light source which emits first-color light and a second-color light source which emits second-color light. The second-color light source includes a third-color chip and a fourth-color phosphor disposed on the third-color chip, and is disposed as one package to emit the second-color light therefrom. The local dimming control part compensates a driving current of the first-color light source and a driving current of the second-color light source of each of the light-emitting blocks. The light source driving part drives the first-color light source and the second-color light sources based on the driving current of the first-color light source and the a driving current of the second-color light source, respectively, each compensated by the local dimming control part.
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Citations
20 Claims
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1. A method for driving a light source, the light source comprising light-emitting blocks, each of the light-emitting blocks including a first-color light source which emits first-color light and a second-color light source which emits second-color light, the second-color light source comprising a third-color chip and a fourth-color phosphor disposed on the third-color chip, the third color chip and the fourth-color phosphor disposed as one package to emit the second-color light therefrom, the method comprising:
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compensating a driving current of the first-color light source and a driving current of the second-color light source of each of the light-emitting blocks to generate a compensated driving current of the first-color light source and a compensated driving current of the second-color light source; and driving the first-color light source and the second-color light source based on the compensated driving current of the first-color light source and the compensated driving current of the second-color light source, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A light source apparatus comprising:
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light-emitting blocks, each including a first-color light source which emits first-color light and a second-color light source which emits second-color light, the second-color light source comprising a third-color chip and a fourth-color phosphor disposed on the third-color chip, the third color chip and the fourth-color phosphor disposed as one package to emit the second-color light therefrom; a local dimming control part which compensates a driving current of the first-color light source and a driving current of the second-color light source of each of the light-emitting blocks; and a light source driving part which drives the first-color light source and the second-color light source based on the driving current of the first-color light source and the driving current of the second-color light source, respectively, each compensated by the local dimming control part. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification