LOW LATENCY TOUCH DISPLAY DEVICE AND DRIVING METHOD THEREOF
First Claim
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1. A touch display device, comprising:
- an image display unit comprising pixels;
a touch sensor configured to sense a user'"'"'s touch input;
a first memory configured to store first data for each display frame; and
a controller configured to update the first data corresponding to a pixel group, the pixel group determined based on second data caused by the touch input and including at least one pixel, when the pixel group is selected according to a position of a touch input sensed by the touch sensor and the first data corresponding to the pixel group has not been read from the first memory.
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Abstract
A touch display device includes: an image display unit including a plurality of pixels; a touch sensor for sensing a user'"'"'s touch input; a first memory for storing data per display frame; and a controller for, when a pixel group including at least one pixel is selected according to a position of a touch input sensed by the touch sensor and data corresponding to the pixel group is not read from the first memory, updating data corresponding to the pixel group based on the data caused by the touch input.
2 Citations
13 Claims
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1. A touch display device, comprising:
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an image display unit comprising pixels; a touch sensor configured to sense a user'"'"'s touch input; a first memory configured to store first data for each display frame; and a controller configured to update the first data corresponding to a pixel group, the pixel group determined based on second data caused by the touch input and including at least one pixel, when the pixel group is selected according to a position of a touch input sensed by the touch sensor and the first data corresponding to the pixel group has not been read from the first memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for driving a touch display device, comprising:
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receiving a user'"'"'s touch input; selecting a pixel group comprising at least one pixel according to a position of the touch input; updating first data corresponding to the pixel group in a present display frame using second data from the user'"'"'s touch input when the first data that corresponds to the pixel group has not been read from a first memory; updating the first data corresponding to the pixel group in a subsequent display frame using the second data from the user'"'"'s touch input when data corresponding to the pixel group has already been read from the first memory; reading the first data of the present display frame; and outputting the first data of the present display frame as an image. - View Dependent Claims (10, 11, 12, 13)
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Specification