Display system
First Claim
1. A display system, which includes a display device and an input device, the input device being provided on a display section of the display device and having one or more conductive thin plates and being arranged to detect a position via which information is inputted from outside, said display system comprising:
- a display device driving section arranged to drive the display device;
a signal application section arranged to apply, to the device having the one or more conductive thin plates, a noise canceling signal having an amplitude and a phase that are equal with an amplitude and a phase of a driving signal applied from the display device driving section to the display device;
an input device control section to which a detection signal is applied, the detection signal being arranged to detect a position via which information is inputted from outside to the conductive thin plate; and
a signal switching section arranged to select either the noise canceling signal or the detection signal so as to input the selected signal to the conductive thin plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch-panel-integrated liquid crystal display device (display system) includes a liquid crystal display device, and a touch panel input device, provided on a liquid crystal panel of the liquid crystal display device, which has upper and lower electrodes (conductive thin plates) for detecting a position via which information is inputted from the outside. The display system includes a liquid crystal display device driving section for driving the liquid crystal display device and a noise canceling signal generator (signal application section) for applying, to the touch panel input device, a noise canceling signal having an amplitude and a phase that are equal to an amplitude and a phase of a driving signal applied from the liquid crystal display device driving section to the liquid crystal panel.
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Citations
8 Claims
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1. A display system, which includes a display device and an input device, the input device being provided on a display section of the display device and having one or more conductive thin plates and being arranged to detect a position via which information is inputted from outside, said display system comprising:
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a display device driving section arranged to drive the display device; a signal application section arranged to apply, to the device having the one or more conductive thin plates, a noise canceling signal having an amplitude and a phase that are equal with an amplitude and a phase of a driving signal applied from the display device driving section to the display device; an input device control section to which a detection signal is applied, the detection signal being arranged to detect a position via which information is inputted from outside to the conductive thin plate; and a signal switching section arranged to select either the noise canceling signal or the detection signal so as to input the selected signal to the conductive thin plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification