Stereoscopic display for switching between 2D/3D images

Details Stereoscopic display for switching between 2D/3D images Stereoscopic display for switching between 2D/3D images

2005-11-10

2008-12-23

Fineman, Lee (Department: 2872)

Optical: systems and elements

Stereoscopic

With right and left channel discriminator

C348S058000, C349S015000, C353S008000

Reexamination Certificate

active

07468838

ABSTRACT:
A stereoscopic display for switching between a 2D image and a 3D image, including a display device displaying an image; and a parallax barrier that transmits incident light in a 2D mode and forms barriers to separate images for a left eye and a right eye in a 3D mode. The parallax barrier unit includes a first polarization plate transmitting light with a first polarization direction; a 2D first polarization grating screen including a first birefringence element and a second birefringence element alternating with each other in a grating pattern; a 2D second polarization grating screen facing the first polarization grating screen and including a third birefringence element and a fourth birefringence element alternating with each other in a grating pattern; and a second polarization plate facing the second polarization grating screen and transmitting only light with a second polarization direction among lights transmitted through the second polarization grating screen.

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