Display apparatus and control method thereof
First Claim
1. A display apparatus, comprising:
- a light source;
a current generator for generating a driving current to drive the light source;
a first current consumer which has a smaller resistance value than the light source;
a first switch which is switched on and off to supply the driving current generated by the current generator either to the light source or to the first current consumer; and
a controller for controlling the current generator to generate the driving current to reach a target value, and for controlling the first switch to supply the driving current to the first current consumer if the driving current is larger than the target value.
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Accused Products
Abstract
A display apparatus and a control method thereof are provided. The inventive method and apparatus improves a response speed of a light source and image quality by minimizing a ripple of a current and reducing a time required to increase/decrease an amount of a current to drive a light source when a light source is turned on and off or a size of a current used to drive a light source is changed. An exemplary display apparatus includes a light source, a current generator which generates a driving current to drive the light source, a first current consumer which has a smaller resistance value than the light source, a first switch which is switched on and off to supply the driving current generated by the current generator either to the light source or to the first current consumer and a controller which controls the current generator to generate the driving current to reach a target value, and controls the first switch to supply the driving current to the first current consumer if the target value is smaller than the driving current.
9 Citations
17 Claims
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1. A display apparatus, comprising:
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a light source; a current generator for generating a driving current to drive the light source; a first current consumer which has a smaller resistance value than the light source; a first switch which is switched on and off to supply the driving current generated by the current generator either to the light source or to the first current consumer; and a controller for controlling the current generator to generate the driving current to reach a target value, and for controlling the first switch to supply the driving current to the first current consumer if the driving current is larger than the target value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling a display apparatus which includes a light source and a first current consumer having a smaller resistance value than the light source, the method comprising:
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generating a driving current to drive the light source; determining whether the generated driving current reaches a target value; and consuming the driving current by a first current consumer if the driving current is larger than the target value. - View Dependent Claims (11)
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12. An apparatus connected to an electrical load comprising:
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a first current consumer having a smaller resistance value than the electrical load; a first switch which is switched on and off to supply current to the electrical load and the first current consumer; and a controller for controlling the first switch to supply the current to the first current consumer if the current is larger than a target value. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification