Display lighting systems with circadian effects

Abstract

Display systems for displaying digital content. The display systems have one or more LED-based lighting channels adapted to generate a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode. The circadian-inducing blue light can have a first circadian-stimulating energy characteristic related to the associated first spectral power distributions of light generated in the first operational mode, and the non-circadian-inducing blue light can have a second circadian-stimulating energy characteristic related to the associated second spectral power distribution of light generated in the second operational mode. Disclosure methods of generating digital display content with the display systems described herein. The methods can generate a circadian-inducing blue light output in first operational mode and a less-circadian-inducing blue light output in a second operational mode.

1 - 30 . (canceled) 
     
     
         31 . A display system, comprising:
 an array of pixels, each of said pixels comprising a plurality of emissive sub-pixels having different color points; and   wherein at least one sub-pixel of said plurality of emissive sub-pixels emits a first emission having a first peak wavelength greater than 470 nm and no greater than 510 nm.   
     
     
         32 . The display system of  claim 31 , wherein said first emission has a band having a full-width half-maximum wavelength ranges of between about 10 nm and about 30 nm. 
     
     
         33 . The display system of  claim 31 , wherein said first emission has a band between at least one of 460 nm and 500 nm or 490 nm and 500 nm 
     
     
         34 . The display system of  claim 31 , wherein said first peak wavelength is about 470 nm, about 480 nm, about 490 nm, or about 500 nm 
     
     
         35 . The display system of  claim 31 , wherein said first emission has a band having energy of at least 10% of total energy in the range of at least one of 460 nm to 500 nm. 
     
     
         36 . The display system of  claim 31 , wherein said first emission has a percentage of spectral power in the wavelength range of 470 nm<λ≤480 nm in comparison to the total energy from 320 nm<λ≤800 nm is between about 2.5 and about 6.0 . 
     
     
         37 . The display system of  claim 31 , wherein said first emission has a percentage of spectral power in the wavelength range of 480 nm<λ≤490 nm in comparison to the total energy from 320 nm<λ≤800 nm is between about 4.0 and about 6.5. 
     
     
         38 . The display system of  claim 31 , wherein said first emission has a percentage of spectral power in the wavelength range of 490 nm<λ≤500 nm in comparison to the total energy from 320 nm<λ≤800 nm is between about 3.5 and about 6.0 . 
     
     
         39 . The display system of  claim 31 , wherein the ratio of spectral power in the wavelength range of 430 nm<λ≤460 nm over 320 nm<λ≤800 nm to spectral power in the wavelength range of 470 nm<λ≤510 nm over 320 nm<λ≤800 nm is less than 1. 
     
     
         40 . The display system of  claim 31 , wherein said ratio is no greater than 0.61 
     
     
         41 . The display system of  claim 31 , wherein said ratio is no greater than 0.44 
     
     
         42 . The display system of  claim 31 , wherein said sub-pixel is a microLED or a microOLED 
     
     
         43 . The display system of  claim 31 , wherein said plurality of emissive sub-pixels include at least blue, green/cyan, and red sub-pixels. 
     
     
         44 . The display system of  claim 31 , wherein said at least one sub-pixel comprises a phosphor. 
     
     
         45 . The display system of  claim 31 , wherein at least one second sub-pixel of said plurality of emissive sub-pixels emits a second emission having a second peak wavelength less than 470 nm. 
     
     
         46 . The display system of  claim 31 , wherein second emission has a second peak wavelength in a range of about 380 nm to about 460 nm. 
     
     
         47 . The display system of  claim 43 , further comprising drive circuitry to selectivity drive said at least one sub-pixel and said at least one second sub-pixel to vary EML between at least a first EML value and a second EML value the display. 
     
     
         48 . The display system of  claim 44 , wherein he ratio of the first EML value to the second EML value can be between about 2.0 and about 5.5.