Projection-type display apparatus with a keystone correction feature for correcting keystone distortion in a projection image

摘要

A projection-type display apparatus includes a setting unit configured to set a vertical keystone correction value used to correct a vertical distortion of a projection image and a horizontal keystone correction value used to correct a horizontal distortion of the projection image, and an image generator configured to generate an image representing a current vertical keystone correction value and a current horizontal keystone correction value that are set by the setting unit, and a settable range of each of the vertical keystone correction value and the horizontal keystone correction value from the current vertical keystone correction value and the current horizontal keystone correction value.