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US 5,900,972 AGranted
Stereoscopic display system
AssigneeThomson multimedia S.A.
InventorYoshiharu Chikazawa
Life of this patent
Estimating the term…
Abstract
Stereoscopic effects can be created by binocular parallax. Known stereoscopic display systems show pseudoscopic effects in outer areas of the image viewing position and the viewing position is fixed. To avoid such pseudoscopic effects and/or to change the viewing position stereoscopic displays using parallax barriers with variable pitch length, moving barriers parallel to the display plane, and a polarizing device forming polarized light together with polarizing prisms are provided.
Claims9
Stereoscopic display system comprising
- a display (1) with a pixel plane for alternately displaying right and left images, and
- a parallax barrier (4) in front of the display, said parallax barrier being made of barrier strips (5), said barrier strips being repositionable between the alternate displays of the right and left images, and said adjacent barrier strips being separated by a slit pitch, wherein the slit pitch is continuously variable, wherein the system comprises a pantograph (6), wherein said barrier strips (5) are connected to the pantograph (6).
Stereoscopic display system comprising
- a display (1) including a pixel plane formed of pixels in rows and columns for displaying right and left images, a polarizing device (42), which can switch between two states of polarization is arranged on top of the display (1),
- a polarizing prism sheet (44) comprising a plurality of prisms (43), which are arranged one prism (43) next to the other, so that one side of each prism covers one row of pixels, a second side of each prism transmitting the state of polarization from the polarizing device which is parallel to the polarization direction of said second side, and a third side of each prism transmitting the other state of polarization from the polarizing device.
Dependencies are inferred from the claim text.