TOUCH SCREEN DISPLAY AND METHOD OF DRIVING THE SAME
First Claim
1. A TSD (Touch Screen Display) comprising:
- a panel comprising a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel;
a touch position deriving unit to derive a touch position of the object based on output signals of the photo sensors; and
a light emission control unit to derive a probability of a plurality of previous touch positions derived by the touch position deriving unit, predict a next touch position after the plurality of previous touch positions according to the probability, and control at least one of the light emitting devices in a light emission area comprising the next touch position to emit light.
2 Assignments
0 Petitions
Accused Products
Abstract
A TSD (Touch Screen Display) includes a panel including a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel; a touch position deriving unit to derive a touch position of the object based on output signals of the photo sensors; and a light emission control unit to derive a probability of a plurality of previous touch positions derived by the touch position deriving unit, predict a next touch position after the plurality of previous touch positions according to the probability, and control at least one of the light emitting devices in a light emission area including the next touch position to emit light.
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Citations
20 Claims
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1. A TSD (Touch Screen Display) comprising:
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a panel comprising a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel; a touch position deriving unit to derive a touch position of the object based on output signals of the photo sensors; and a light emission control unit to derive a probability of a plurality of previous touch positions derived by the touch position deriving unit, predict a next touch position after the plurality of previous touch positions according to the probability, and control at least one of the light emitting devices in a light emission area comprising the next touch position to emit light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of driving a TSD (Touch Screen Display) comprising a panel comprising a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel, the method comprising:
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deriving a probability of a plurality of previous touch positions of the object touching the panel based on output signals of the photo sensors; determining a light emission area comprising a next touch position after the plurality of previous touch positions predicted according to the probability; generating a light emission control signal to control at least one of the light emitting devices in the light emission area to emit light; controlling the at least one of the light emitting devices in the light emission area to emit light in response to the light emission control signal; capturing an image of the object touching the panel based on output signals of the photo sensors while the light is being emitted from the at least one of the light emitting devices in the light emission area; and deriving a current touch position based on the image of the object captured while the light is being emitted from the at least one of the light emitting devices in the light emission area. - View Dependent Claims (14, 15, 16, 19)
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17. A method of driving a TSD (Touch Screen Display) comprising a panel comprising a plurality of light emitting devices to form an image, and a plurality of photo sensors to capture an image of an object touching the panel, the TSD further comprising a touch sensing unit to sense a touch of the object on the panel, the method comprising:
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sensing a touch of the object on the panel using the touch sensing unit; generating a first light emission control signal when the touch sensing unit senses the touch of the object on the panel; controlling at least some of the light emitting devices to emit light in response to the first light emission control signal; deriving a plurality of previous touch positions based on output signals of the photo sensors while the at least some of the light emitting devices are emitting light under the control of the first light emission control signal; deriving a probability of the plurality of previous touch positions; determining a light emission area comprising a next touch position after the plurality of previous touch positions predicted according to the probability; generating a second light emission control signal to control at least one of light emitting devices in the light emission area to emit light; controlling the at least one of the light emitting devices in the light emission area to emit light in response to the second light emission control signal; and capturing an image of the object touching the panel based on output signals of the photo sensors while the light is being emitted from the at least one of the light emitting devices in the light emission area; and deriving a current touch position based on the image of the object captured while the light is being emitted from the at least one of the light emitting devices in the light emission area. - View Dependent Claims (18, 20)
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Specification