Patent ID: 8162487
Filing Date: 2012-04-24
Classification: H04N

Abstract:
1. A video projector comprising: a display device that receives an image signal, performs optical modulation on light emitted from a light source based on the image signal, and generates optically modulated image light to be projected onto a projection surface; a scaling processor that performs a scaling process on the input image signal; an on-screen display (OSD) processor that generates an adjustment pattern image and corrects the adjustment pattern image in accordance with a correction instruction on the projection surface; an image signal synthesizer that combines the image signal processed by the scaling processor with an OSD image signal generated and corrected by the OSD processor to generate a combined image signal; and a trapezoidal distortion corrector that performs trapezoidal distortion correction on the combined image signal from the image signal synthesizer based on the correction of the adjustment pattern image on the projection surface; wherein the adjustment pattern image generated by the OSD processor includes: