| 摘要 |
PROBLEM TO BE SOLVED: To obtain a projection type display device which is capable of displaying projected images subjected to the correction of distortions according to device information by providing the device with a distortion information output means which outputs the information on the distortion of the images projected onto a surface to be projected. SOLUTION: When display is executed by inclining the projection type display device 1, the projected images are distorted to a trapezoidal shape and, therefore, whether the projection type display device 1 inclines with respect to a screen 2 or not is detected by a relative position detecting means 7 and the result of the detection, i.e., the device information is outputted to an image forming means 3 by a device information output means 9 and the video signal corrected in accordance with the device information is inputted to the projection type display device 1 so as to eliminate the distortions of the images projected onto the screen. The image forming means 3 is, for example, a personal computer or the like having a device information detecting means 10 which receives the device information from the projection type display device 1 and detects the state of the device and a control section 11 which corrects the images in accordance with the device information and outputs the video signal.
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