| 摘要 |
PROBLEM TO BE SOLVED: To provide a rear-projection projector device with improved accuracy in detecting a touching action made by a user on an image displayed on a screen.SOLUTION: A projector device 100 includes: a screen 120 comprising a display area 121 for displaying images and a calibration area 122 having at least either of a light reflective member and light absorptive member located on the front side of the screen 120; a projector 110 which irradiates the screen 120 with light from the rear side; a light receiving unit 130 which detects reflection on the rear side of the screen 120; a threshold adjustment unit 141 which adjusts a threshold level for detecting a touching action based on a signal level of the reflection detected in the calibration area 122; and an action detection unit 142 which detects a touching action by comparing a signal level of the reflection detected in the display area 121 with an adjusted threshold level. |
