Importance

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Abstract

A method for displaying a stereoscopic image on a computer monitor includes the use of a composite stereoscopic image where one of the left or right eye images is displayed on every odd-numbered horizontal scan line while the other image is displayed on every even-numbered horizontal scan line. In a first vertical scan, the odd-numbered horizontal scan lines are cancelled so that only the image displayed by the even-numbered lines visible. In a second vertical scan, the even-numbered horizontal scan lines are cancelled so that only the image displayed by the odd-numbered horizontal scan lines is visible. The first and second image states are alternately displayed with every vertical refresh cycle. LCD glasses which alternately block the left eye or the right eye are synchronized to the alternation of the first and second image states, such that the left eye sees only the left eye image and the right eye sees only the right eye image, resulting in the user perceiving a stereoscopic image. The invention also relates to an apparatus for causing a computer monitor to display only odd-numbered horizontal scan lines during a first image state and only even-numbered horizontal scan lines during a second image state, such that the first and second image states alternate with every vertical refresh cycles. The apparatus includes means for synchronizing the alternation of the first and second image states with LCD glasses which selectively block the left eye or right eye vision of a user.

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First Claim