OPERATING METHOD OF CAPACITIVE TOUCH PANEL AND TOUCH CONTROL BARRIER-TYPE 3D DISPLAY DEVICE
First Claim
1. An operating method of a capacitive touch panel adapted to a barrier-type three-dimensional display device, the capacitive touch panel comprising a sensing device, the operating method comprising:
- performing a sensing voltage readout operation only during a signal caused by a transient of a barrier voltage is smaller than a preset value;
the sensing voltage readout operation comprising;
providing a first driving signal to the sensing device for performing the sensing voltage readout operation when the barrier voltage is at a logic high level; and
providing a second driving signal to the sensing device for performing the sensing voltage readout operation when the barrier voltage is at a logic low level,wherein a pulse amplitude of the first driving signal is smaller than that of the second driving signal.
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Abstract
An exemplary operating method of a capacitive touch panel adapted to a touch control barrier-type three-dimensional display device and including a sensing device is disclosed. In the operating method, a sensing voltage readout operation is performed only during a signal caused by a transient of a barrier voltage is smaller than a preset value. The voltage readout operation includes steps of: providing a first driving signal to the sensing device for performing the sensing voltage readout operation during the barrier voltage is at a logic high level; and providing a second driving signal to the sensing device for performing the sensing voltage readout operation during the barrier voltage is at a logic low level. A pulse amplitude of the first driving signal is smaller than that of the second driving signal.
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Citations
13 Claims
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1. An operating method of a capacitive touch panel adapted to a barrier-type three-dimensional display device, the capacitive touch panel comprising a sensing device, the operating method comprising:
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performing a sensing voltage readout operation only during a signal caused by a transient of a barrier voltage is smaller than a preset value;
the sensing voltage readout operation comprising;providing a first driving signal to the sensing device for performing the sensing voltage readout operation when the barrier voltage is at a logic high level; and providing a second driving signal to the sensing device for performing the sensing voltage readout operation when the barrier voltage is at a logic low level, wherein a pulse amplitude of the first driving signal is smaller than that of the second driving signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A touch control barrier-type three-dimensional display device, comprising:
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a display panel, for displaying image data; a barrier layer, for providing a barrier voltage; a barrier light valve layer arranged between the display panel and the barrier layer, wherein a transmittance of the barrier light valve layer is controlled by the barrier voltage; a touch panel, arranged on a different side of the barrier layer with respect to the barrier light valve layer, comprising; a plurality of sensing devices; a plurality of driving lines, wherein each of the driving lines is for receiving a driving signal to charge the sensing devices electrically coupled with the driving line; a plurality of data readout lines, electrically coupled to the sensing devices, for transmitting sensing voltages on the respective sensing devices; and a detecting unit, electrically coupled to the data readout lines, for reading out and processing the sensing voltages transmitted by the respective data readout lines and determining a coordinate position of a touched-point according to the result of the processing; and a driving signal supplying unit, electrically coupled to the driving lines, for supplying the driving signal to the driving lines during a signal caused by a transient of the barrier voltage is smaller than a preset value, wherein a pulse amplitude of the driving signal supplied by the driving signal supply unit during the barrier voltage is at a logic high level is smaller than that of the driving signal supplied by the driving signal supply unit during the barrier voltage is at a logic low level. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification