PROJECTION TYPE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a projection type display device which is capable of reducing or making inconspicuous keystone distortion of an image corresponding to a on-screen display menu.

SOLUTION: Image data input from an image source like a personal computer and image data of an OSD menu output from an OSD menu generation part 4 are combined by a combination circuit 3. A keystone distortion correction part 5 corrects keystone distortion of image data of the combined image, whereby keystone of not only images for projection but also the OSD menu to be projected on a screen can be reduced.

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