IMAGE DISPLAY APPARATUS AND METHOD OF OPERATING THE SAME
First Claim
1. A method for operating an image display apparatus having a display unit capable of sensing a touch made by a pointing device, the method comprising:
- outputting a synchronous signal through the entire region of the display unit;
transmitting a first scanning signal and a second scanning signal respectively scanning the display unit in a first direction and a second direction to the pointing device; and
acquiring touch position information regarding a touch made by the pointing device by using touch time information regarding time points when the pointing device receives the first scanning signal and the second scanning signal after sensing the synchronous signal.
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Accused Products
Abstract
There are provided an image display apparatus having a display unit capable of sensing a touch made by a pointing device, and a method for operating the same. The method includes outputting a synchronous signal through the entire region of the display unit, transmitting a first scanning signal and a second scanning signal respectively scanning the display unit in a first direction and a second direction to the pointing device; and acquiring touch position information regarding a touch made by the pointing device by using touch time information regarding time points when the pointing device receives the first scanning signal and the second scanning signal after sensing the synchronous signal. Accordingly, an error in touch recognition caused by the delay of a synchronous signal can be minimized.
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Citations
18 Claims
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1. A method for operating an image display apparatus having a display unit capable of sensing a touch made by a pointing device, the method comprising:
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outputting a synchronous signal through the entire region of the display unit; transmitting a first scanning signal and a second scanning signal respectively scanning the display unit in a first direction and a second direction to the pointing device; and acquiring touch position information regarding a touch made by the pointing device by using touch time information regarding time points when the pointing device receives the first scanning signal and the second scanning signal after sensing the synchronous signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image display apparatus having a display unit capable of sensing a touch made by a pointing device, the image display apparatus comprising:
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a control unit generating a synchronous signal output through the entire region of the display unit, and a first scanning signal and a second scanning signal respectively scanning the display unit in a first direction and a second direction; and a display unit outputting the synchronous signal, the first scanning signal and the second scanning signal, wherein, the control unit acquires touch position information regarding a touch made by the pointing device by using touch time information regarding time points when the pointing device receives the first scanning signal and the second scanning signal after sensing the synchronous signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification