Method for the orientation of a parallax barrier screen on a...

Details Method for the orientation of a parallax barrier screen on a... Method for the orientation of a parallax barrier screen on a...

2009-12-07

2010-11-16

Duong, Thoi V (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal system

Stereoscopic

C359S462000, C353S007000

Reexamination Certificate

active

07834944

ABSTRACT:
A method for the orientation of a parallax barrier screen on a display screen with pixels x(ij) in a pattern of rows (i) and columns (j) for the production of a display screen for three-dimensional representation. Particularly, a test image is presented comprising various views A(k) where k=1, . . . , n and n=6 or n=7, wherein the test image comprises at least two first straight lines having two different directions of extension from one another, said lines being disposed in different horizontal positions in the n=6 or n=7 views A(k), wherein the test image comprises at least two second straight lines that are each oriented parallel to one of the first straight lines and that are disposed at least at the same horizontal positions in the n=6 or n=7 views A(k). The method according to the invention may be performed quickly and with a high degree of accuracy and is therefore suitable for industrial use for the production of display screens for three-dimensional representation.

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Sam H. Kaplan: “Theory of Parallax Barriers”, Journal of SMPTE, vol. 59, No. 7, pp. 11-21, Jul. 1952.

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