US 2012/0256905 A1 · Segmented polarization modulators for stereoscopic projection

Abstract

A segmented polarizing device may be a polarizing modulator which may include strips of switching polarizer material. The switching polarizer material may be used to switch individual segments of the polarizing modulator at a time. In such devices, the polarizing modulator may be one or more liquid crystal cells (LC cell). As the LC modulation panel of a display refreshes an image from top to bottom, changing from left eye content to right eye content, the polarization of a corresponding part of a scrolling polarizing screen may change along with the display.

Claims20

Dependent claims

A segmented polarization device for a projector comprising:

a segmented polarization modulator comprising a plurality of polarization switching elements operable to selectively transform the state of polarization of incident modulated light.

Dependencies are inferred from the claim text.

Facts

Application

13/247,678Filed 28 Sep 2011

Priority

28 Sep 2010

Published

11 Oct 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

G02F 1/0136
For the control of the intensity, phase, polarisation or colour: for the control of polarisation, e.g. state of polarisation [SOP] control,…
G02B 30/25
Of the stereoscopic type: using polarisation techniques
G09G 3/003
Using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide;…
H04N 13/337
Displays for viewing with the aid of special glasses or head-mounted displays [HMD]: using polarisation multiplexing

Segmented polarization modulators for stereoscopic projection

Life of this patent

Segmented polarization modulators for stereoscopic projection

Life of this patent

Abstract

Claims20