PROJECTION DISPLAY APPARATUS AND METHOD OF CONTROLLING THE SAME

摘要

A projection display apparatus includes an image projecting unit projecting an image, an operation unit as an operation device whose output value changes depending on the amount of operation, a correction amount setting unit changing a keystone correction amount in accordance with an output value of the operation unit, and a keystone correcting unit performing keystone correction on an image to be projected in accordance with the keystone correction amount. A zero reference position in which the keystone correction amount is zero is set in an operation range of the operation unit. The correction amount setting unit sets a dead zone in the operation range such that the dead zone includes the zero reference position and an area surrounding this position, and sets the keystone correction amount to zero in accordance with the output value corresponding to the inside of the dead zone.

主权项

1. A projection display apparatus comprising:
an image projecting unit that projects an image; an operation unit whose output value changes depending on an amount of manual operation; a correction amount setting unit that changes a keystone correction amount in accordance with the output value of the operation unit; and a keystone correcting unit that performs keystone correction on the image to be projected in accordance with the keystone correction amount, wherein the projection display apparatus operates in two operation modes, one is an adjustment mode in which the keystone correction amount is changed in accordance with the output value of the operation unit and the other is a non-adjustment mode, in the non-adjustment mode, a first dead zone is set within an operation range of the operation unit, the keystone correction amount is fixed while the output value of the operation unit is within the first dead zone and the operation mode is switched to the adjustment mode when the output value is outside the first dead zone, and when the operation unit is not operated for a period of time in the adjustment mode, the operation mode is switched to the non-adjustment mode.