Stereoscopic Dual Modulator Display Device Using Full Color Anaglyph

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.

1 . In a dual modulation display, a method for displaying images embodied in corresponding image data, said method comprising:
 providing a first light source configured to emit light in a controllable manner;   providing a second light source configured to emit light in a controllable manner;   controlling said first light source and said second light source, based at least in part on said image data, to create an incident luminance pattern on a display panel, said display panel configured to spatially modulate said incident luminance pattern;   treating a combination of said first light source and said second light source as a single light source to determine said incident luminance pattern on said display panel; and   spatially modulating said incident luminance pattern to form said images in a modulated beam of light, based on said image data and said determined luminance pattern.   
     
     
         2 . The method of  claim 1 , wherein:
 said step of providing said first light source includes providing a light source including a first light emitting device; and   said step of providing said second light source includes providing a second light source including another light emitting device.   
     
     
         3 . The method of  claim 2 , wherein said light emitting device and said another light emitting device are light emitting diodes (LEDs). 
     
     
         4 . The method of  claim 1 , wherein:
 said step of providing said first light source includes providing a light source that emits light having a spectral composition of different wavelengths of light over a first spectral band; and   said step of providing said second light source includes providing a light source that emits light having a second spectral composition of different wavelengths of light over a second spectral band different from said first spectral band.   
     
     
         5 . The method of  claim 4 , wherein said first spectral band and said second spectral band are complementary. 
     
     
         6 . The method of  claim 1 , wherein said step of treating a combination of said first light source and said second light source as a single light source to determine said incident luminance pattern on said display panel includes utilizing a single point spread function (PSF) representing said combination of said first light source and said second light source. 
     
     
         7 . A dual modulation display configured to display images embodied in image data, comprising:
 a first light source configured to emit visible light in a controllable manner;   a second light source configured to emit visible light in a controllable manner;   a display panel configured to spatially modulate said visible light to form said images in a modulated beam of light; and   a controller electrically coupled to receive said image data, provide control signals to said first light source and said second light source based on said image data, and to determine a luminance pattern of said visible light on said display panel; and wherein   said controller treats said first light source and said second light source together as a single light source in determining said luminance pattern; and   said display panel spatially modulates said visible light based on said image data and said determined luminance pattern.   
     
     
         8 . The method of  claim 7 , wherein said first light source and said second light source are light emitting devices. 
     
     
         9 . The method of  claim 8 , wherein said light emitting devices are LEDs. 
     
     
         10 . The method of  claim 7 , wherein:
 said first light source emits visible light having a spectral composition of different wavelengths of light over a first spectral band; and   said second light source emits visible light having a second spectral composition of different wavelengths of light over a second spectral band.   
     
     
         11 . The method of  claim 10 , wherein said first spectral band and said second spectral are complementary. 
     
     
         12 . The method of  claim 7 , wherein said controller utilizes a single PSF representing said combination of said first light source and said second light source in determining said luminance pattern. 
     
     
         13 . A dual modulation display configured to display images embodied in image data, said dual modulation display comprising:
 a plurality of individually controllable light sources each configured to emit visible light;   a display panel configured to spatially modulate said visible light to form said images in a modulated beam of light; and   a controller electrically coupled to receive said image data, provide control signals to said plurality of light sources based on said image data, and to determine a luminance pattern of said visible light on said display panel; and wherein   said controller treats said plurality of individually controllable light sources as a single light source in determining said luminance pattern; and   said display panel spatially modulates said visible light based on said image data and said determined luminance pattern.   
     
     
         14 . The display of  claim 13 , wherein each light source of said plurality of light sources is a light emitting device. 
     
     
         15 . The display of  claim 14 , wherein each of said light emitting devices is an LED. 
     
     
         16 . The display of  claim 13 , wherein each light source of said plurality of light sources emits light having a spectral composition of different wavelengths of light over one of a set of spectral bands. 
     
     
         17 . The display of  claim 16 , wherein each spectral band of said set of spectral bands is complementary to every other of said set of spectral bands. 
     
     
         18 . The display of  claim 13 , wherein said controller utilizes a single PSF representing said plurality of light sources in determining said luminance pattern.