| 摘要 |
A projector includes a projection unit (80) to project and display an image (3) on a screen (2) disposed substantially vertically; an angle detector (70) to detect shaking of the projection unit (80); and a trapezoidal distortion correction unit (50), using a processing circuit, to conduct automatic trapezoidal distortion correction of the image (3) displayed on the screen (2) based on an inclination angle of the projection unit (80) detected by the angle detector (70), and to enable manual trapezoidal distortion correction of the image (3) displayed on the screen (2). When manual trapezoidal distortion correction is conducted after automatic trapezoidal distortion correction, the trapezoidal distortion correction unit (50) determines whether an angle deviation occurs to the inclination angle, set by the manual trapezoidal distortion correction, exceeding a given threshold angle for a given time period. When the trapezoidal distortion correction unit (50) determines that the angle deviation exceeds the given threshold angle, the automatic trapezoidal distortion correction is conducted again. |
