| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a display device that detects touch inputs and performs display processing including erasure processing for display image according to the detection result while the processing is not complex and no power source is necessary for an erasure instruction input device.SOLUTION: A display device 1 includes a sensor system 11 which can detect a plurality of touch inputs to a display part 10 and a drawing processing part 15 which executes drawing processing or erasure processing on the display part 10 according to the detection result of the sensor system 11. The display device stores an input pattern for erasure processing when a plurality of simultaneous touch inputs for erasure processing to the sensor system 11 are performed by an instruction input device, determines whether the pattern consisting of the plurality of simultaneous touch inputs matches the input pattern for erasure processing when the sensor system 11 detects the plurality of simultaneous touch inputs, and performs erasure processing by the drawing processing part 15 according to the detection result of the sensor system 11 when it is determined that the pattern matches the input pattern for erasure processing.</p> |
