| 摘要 |
A projection apparatus which automatically adjusts a first projection position and a second projection position through a smooth picture technique, and a control method thereof are provided. The projection apparatus includes a screen; an optical engine having a digital micromirror device with diamond-shaped pixels; a smooth picture adjusting module which alternately projects the image from the digital micromirror device to a first projection position and a second projection position spaced from the first projection position by a predetermined interval in a vertical direction; a pattern image generator which generates a pattern image having at least one horizontal line; a pattern image detector which detects a vertical width of the horizontal line; and a controller which controls the smooth picture adjusting module to adjust at least one of the first projection position and the second projection position so that the width of the horizontal line is within a predetermined range.
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