Stereoscopic dual modulator display device using full color anaglyph

Patent metadata

Field	Value
Publication number	US-9544579-B2
Application number	US-201514972550-A
Country	US
Kind code	B2
Filing date	Dec 17, 2015
Priority date	Oct 28, 2009
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

Systems and methods are provided for displaying three-dimensional image data on a display having a light source modulation layer and a display modulation layer. The light source modulation layer has light sources for providing spatially modulated, spectrally separated light for displaying time-multiplexed left and right eye images. The display modulation layer has pixels for spatially modulating the amount of light received from the light source modulation layer.

First claim

The invention claimed is:

1. A display system for displaying three-dimensional image data comprising first-eye image data and second-eye image data, said display system comprising:
a light source modulation layer comprising a first plurality of light sources and a second plurality of light sources, said first plurality of light sources and said second plurality of light sources being operable to provide spatially-modulated light for display of said first-eye image data and said second-eye image data, respectively;
a display modulation layer comprising a plurality of pixels operable to spatially modulate light received from said light source modulation layer; and
a controller operative to
determine a set of first-eye light source modulator control values based at least in part on a set of first-eye image data, said set of first-eye light source modulator control values being configured to produce a first-eye luminance pattern expected to be received on said display modulation layer,
determine a set of second-eye light source modulator control values based at least in part on a set of second-eye image data, said set of second-eye light source modulator control values being configured to produce a second-eye luminance pattern expected to be received on said display modulation layer,
make a comparison of at least some of said set of first-eye light source modulator control values and at least some of said set of second-eye light source modulator control values, and
depending on said comparison, adjust a set of first-eye display modulation layer control values based on said second-eye luminance pattern; and

wherein said controller is configured to cause pixels associated with said set of first-eye image data to be illuminated by said second-eye illumination pattern when said comparison indicates a non-zero low variance in brightness between at least some of said set of first-eye light source modulator control values and said set of second-eye light source modulator control values.

2. The display system of claim 1 , wherein said controller is further operative to adjust a set of second-eye display modulation layer control values based on said second-eye luminance pattern.

3. The display system of claim 2 , wherein said controller is further operative to:
determine a second set of first-eye light source modulator control values based at least in part on a second set of first-eye image data, said second set of first-eye light source modulator control values being configured to produce a second first-eye luminance pattern expected to be received on said display modulation layer;
determine a second set of second-eye light source modulator control values based at least in part on a second set of second-eye image data, said second set of second-eye light source modulator control values being configured to produce a second second-eye luminance pattern expected to be received on said display modulation layer;
make a second comparison of at least some of said second set of first-eye light source modulator control values and at least some of said second set of second-eye light source modulator control values; and
depending on said second comparison, adjust a second set of second-eye display modulation layer control values based on said second first-eye luminance pattern.

4. The display system of claim 1 , wherein:
said set of first-eye image data is associated with a region of interest within a frame of first-eye image data; and
said set of second-eye image data is associated with a corresponding region of interest within a same frame of second-eye image data.

5. The display system of claim 1 , wherein said set of first-eye display modulation layer control values comprises at least some of said set of first-eye image data.

6. The display system of claim 1 , wherein:
said first plurality of light sources is configured to provide light having a first spectral composition; and
said second plurality of light sources is configured to provide light having a second spectral composition which is complementary to said first spectral composition.

7. The display system of claim 6 , wherein said first and said second pluralities of light sources are operable to sequentially provide, in a time-multiplexed manner, spatially-modulated light for display of said set of first-eye image data and spatially modulated light for display of said set of second-eye image data.

8. The display system of claim 1 , wherein said first and said second pluralities of light sources are arranged on said light source modulation layer as an array of light source pairs, each light source pair comprising one of said first plurality of light sources and one of said second plurality of light sources.

9. The display system of claim 8 , wherein said first and second pluralities of light sources comprise light emitting diodes (LEDs).

10. The display system of claim 9 , wherein said LEDs comprise tri-color LEDs.

11. The display system of claim 1 , wherein said controller is further configured to cause first-eye and second-eye images within a given frame to be repeated in alternation.

12. A method of displaying three-dimensional image data on a display system having a light source modulation layer and a display modulation layer, said method comprising:
receiving a set of first-eye image data and a set of second-eye image data;
determining a set of first-eye light source modulator control values based at least in part on said set of first-eye image data, said set of first-eye light source modulator control values for driving a first plurality of light sources of said light source modulation layer;
determining a set of second-eye light source modulator control values based at least in part on said set of second-eye image data, said set of second-eye light source modulator control values for driving a second plurality of light sources of said light source modulation layer;
determining a first-eye luminance pattern expected to be received on said display modulation layer from said first plurality of light sources based at least in part on said set of first-eye light source modulator control values;
determining a second-eye luminance pattern expected to be received on said display modulation layer from said second plurality of light sources based at least in part on said set of second-eye light source modulator control values;
making a comparison of at least a portion of said set of first-eye light source modulator control values and at least a portion of said set of second-eye light source modulator control values;
depending on said comparison, adjusting a set of first-eye display modulation layer control values based on said second-eye luminance pattern; and
causing pixels of said display modulation layer that are associated with said set of first-eye image data to be illuminated by said second-eye illumination pattern when said comparison indicates a non-zero low variance in brightness between at least some of said set of first-eye light source modulator control values and said set of second-eye light source modulator control values.

13. The method of claim 12 , further comprising adjusting a set of second-eye display modulation layer control values based on said second-eye luminance pattern.

14. The method of claim 13 , further comprising:
applying said set of second-eye light source modulator control values to said light source modulation layer and said set of first-eye display modulation layer control values to said display modulation layer; and
applying said set of second-eye light source modulator control values to said light source modulation layer and said set of seco

Assignees

• Dolby Laboratories Licensing Corp

Inventors

• Basler Brad
• Giaretta Giorgio

Classifications

• H04N13/324 Primary

  Colour aspects · CPC title

• H04N13/361

  Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background · CPC title

• H04N13/315

  the parallax barriers being time-variant · CPC title

• H04N13/356

  having separate monoscopic and stereoscopic modes · CPC title

• H04N13/334

  using spectral multiplexing · CPC title