Plasma display apparatus and driving method thereof
First Claim
1. A plasma display apparatus comprising:
- a pattern recognition unit for recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+1th line are turned off depending on an image signal input from the exterior;
a sub-field mapping unit for mapping the image signal by the sub-field unit to a corresponding sub-field; and
a controller for controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the pattern recognition unit recognizes the alternate pattern.
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Abstract
The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus and a driving method thereof, which is capable of preventing damage of a driving circuit. The plasma display apparatus according to the present invention includes a pattern recognition unit for recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+1th line are turned off depending on an image signal input from the exterior; a sub-field mapping unit for mapping the image signal by the sub-field unit to a corresponding sub-field; and a controller for controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the pattern recognition unit recognizes the alternate pattern. In a plasma display apparatus and a driving method thereof according to the present invention, a predetermined number of sub-fields among the whole sub-fields are controlled to be used during one frame when an alternate pattern is recognized so that a generated peak current is reduced, thereby preventing damage of a sustain and a scan driving units.
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Citations
20 Claims
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1. A plasma display apparatus comprising:
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a pattern recognition unit for recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+1th line are turned off depending on an image signal input from the exterior;
a sub-field mapping unit for mapping the image signal by the sub-field unit to a corresponding sub-field; and
a controller for controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the pattern recognition unit recognizes the alternate pattern. - View Dependent Claims (2, 3, 19)
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4. A plasma display apparatus comprising:
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a sub-field mapping unit for mapping an image signal input from the exterior by the sub-field unit to a corresponding sub-field;
a pattern recognition unit for recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+1th line are turned off by comparing a mapping code of the mapped image signal; and
a controller for controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the pattern recognition unit recognizes the alternate pattern. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method of driving a plasma display apparatus comprising the steps of:
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recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+lth line are turned off depending on an image signal input from the exterior;
mapping the image signal by the sub-field unit to a corresponding sub-field; and
controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the alternate pattern is recognized in the pattern recognition step. - View Dependent Claims (11, 12, 20)
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13. A method of driving a plasma display apparatus comprising the steps of:
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mapping an image signal input from the exterior by the sub-field unit to a corresponding sub-field;
recognizing an alternate pattern in which no less than a predetermined number of cells on the Nth line are turned on and no less than a predetermined number of cells on the N+lth line are turned off by comparing a mapping code of the mapped image signal; and
controlling a predetermined number of sub-fields among the whole sub-fields during one frame to be used when the alternate pattern is recognized in the pattern recognition step. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification