Excellently Operable Projection Image Display Apparatus
First Claim
1. A projection image display apparatus comprising:
- an image signal processing unit which receives and converts a first image signal to generate a second image signal representing an image to be projected;
an image distortion correction unit which corrects said second image signal in response to a correction point on a projected image being changed by an operation done by a user; and
a distortion correction screen generation unit which operates, when an image distortion correction process is selected in response to an operation done by the user, to superpose on the projected image a correction pattern used to allow the user to designate the correction point, and thus display said correction pattern and the projected image on a single screen, said distortion correction screen generation unit including a switching control unit which switches a color used to display said correction pattern when said image distortion correction process is performed.
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Accused Products
Abstract
A projector includes: an image signal processing circuit which receives and converts a first image signal to generate a second image signal representing an image to be projected; an image distortion correction unit which corrects the second image signal in response to a correction point on a projected image being changed by an operation done by a user; and an OSD circuit which operates, in response to an image distortion correction process being selected in response to an operation done by the user, to superpose a correction pattern used to allow the user to designate the correction point on the projected image, and thus display the correction pattern and the projected image on a single screen. The OSD circuit includes a switching control unit which switches a color used to display the correction pattern when the image distortion correction process is performed.
42 Citations
6 Claims
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1. A projection image display apparatus comprising:
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an image signal processing unit which receives and converts a first image signal to generate a second image signal representing an image to be projected; an image distortion correction unit which corrects said second image signal in response to a correction point on a projected image being changed by an operation done by a user; and a distortion correction screen generation unit which operates, when an image distortion correction process is selected in response to an operation done by the user, to superpose on the projected image a correction pattern used to allow the user to designate the correction point, and thus display said correction pattern and the projected image on a single screen, said distortion correction screen generation unit including a switching control unit which switches a color used to display said correction pattern when said image distortion correction process is performed. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification