US 8,939,585 B2Granted

Stereo display system

AssigneeIndustrial Technology Research Institute

InventorsChang-Ying Chen, Chao-Hsu Tsai, Chang-Shuo Wu

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Abstract

A stereo display system including a plurality of projection apparatuses and a screen module is provided. The projection apparatuses project a plurality of image beams. The screen module is disposed in front of the projection apparatuses, wherein the image beams are transmitted toward the screen module. The screen module includes a light diffusion layer and a beam splitting layer. The light diffusion layer has at least one diffusion direction, and the light diffusion layer diffuses the image beams with a diffusion angle. The light diffusion layer is disposed between the beam splitting layer and the projection apparatuses, wherein each of the image beams is divided into a plurality of sub image beams by the beam splitting layer. The sub image beams of each image beam transmit with different angles, such that the image beams form a plurality of stereo image viewing zones after passing through the screen module.

Claims21

Dependent claims

A stereo display system comprising:

a plurality of projection apparatuses, configured to project a plurality of image beams respectively;
and
a screen module, disposed in front of the projection apparatuses, wherein the image beams are transmitted towards the screen module, and the screen module comprises:
a light diffusion layer, having at least one diffusion direction and diffusing the image beams along the diffusion direction with a diffusion angle corresponding to the diffusion direction;
and
a beam splitting layer, the light diffusion layer being disposed between the beam splitting layer and the projection apparatuses, wherein each of the image beams diffused by the light diffusion layer is divided into a plurality of sub image beams after passing through the beam splitting layer, and the sub image beams of each image beam are propagated with different angles, such that the image beams form a plurality of stereo image viewing zones after passing through the screen module.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/905,125Filed 29 May 2013
Priority: TW 101150811 A28 Dec 2012
Published: US 2014/0185015 A13 Jul 2014
Granted: 27 Jan 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G02B 30/27
Of the autostereoscopic type: involving lenticular arrays
H04N 13/302
Image reproducers: for viewing without the aid of special glasses, i.e. using autostereoscopic displays
H04N 13/363
Image reproducers: using image projection screens
G03B 21/60
Projection screens: characterised by the nature of the surface