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Definition of "keystone distortion" |
a distortion that presents an image in the shape of a trapezoidal.For projection television displays,off-axis projections of the red and blue tubes can cause keystone distortion. For direct view television displays, unequal deflection sensitivities for the two sections of the deflection yoke can result in keystone distortion. A horizontal trapezoid is the result of the vertical yoke deflection sensitivities. Similarly, a vertical trapezoid is the result of the horizontal yoke deflection sensitivities. |
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