View source for Meta platforms technologies, llc (20250130447). ZONAL ILLUMINATION WITH PHOTONIC CIRCUITS FOR DISPLAYS

=ZONAL ILLUMINATION WITH PHOTONIC CIRCUITS FOR DISPLAYS=


==Organization Name==

[[:Category:meta platforms technologies, llc|meta platforms technologies, llc]]


[[Category:meta platforms technologies, llc]]

==Inventor(s)==

[[:Category:Guohua Wei of Redmond WA US|Guohua Wei of Redmond WA US]][[Category:Guohua Wei of Redmond WA US]]

[[:Category:Peter Topalian of Seattle WA US|Peter Topalian of Seattle WA US]][[Category:Peter Topalian of Seattle WA US]]

[[:Category:Min Chul Shin of Bellevue WA US|Min Chul Shin of Bellevue WA US]][[Category:Min Chul Shin of Bellevue WA US]]

[[:Category:Risheng Cheng of Redmond WA US|Risheng Cheng of Redmond WA US]][[Category:Risheng Cheng of Redmond WA US]]

[[:Category:Zhujun Shi of Redmond WA US|Zhujun Shi of Redmond WA US]][[Category:Zhujun Shi of Redmond WA US]]

[[:Category:Zhaoning Yu of Redmond WA US|Zhaoning Yu of Redmond WA US]][[Category:Zhaoning Yu of Redmond WA US]]

[[:Category:Jonathan Robert Peterson of Woodinville WA US|Jonathan Robert Peterson of Woodinville WA US]][[Category:Jonathan Robert Peterson of Woodinville WA US]]

[[:Category:Zhimin Shi of Bellevue WA US|Zhimin Shi of Bellevue WA US]][[Category:Zhimin Shi of Bellevue WA US]]

[[:Category:Giuseppe Calafiore of Woodinville WA US|Giuseppe Calafiore of Woodinville WA US]][[Category:Giuseppe Calafiore of Woodinville WA US]]

[[:Category:Heqing Huang of Bronx NY US|Heqing Huang of Bronx NY US]][[Category:Heqing Huang of Bronx NY US]]

==ZONAL ILLUMINATION WITH PHOTONIC CIRCUITS FOR DISPLAYS==


This abstract first appeared for US patent application 20250130447 titled 'ZONAL ILLUMINATION WITH PHOTONIC CIRCUITS FOR DISPLAYS

==Original Abstract Submitted==

in some examples, a device may include a backlight unit configured to illuminate a display. in some examples, a light source may direct light into an active photonic circuit. the active photonic circuit may include optical switches controllable to distribute the light to illuminate display zones. an active photonic circuit may include an arrangement of optical switches configured to allow particular zones to be raster scanned, for example, using light distribution and outcoupling further using a passive photonic circuit. the illumination intensity for each zone may be controlled using the optical switches and/or with variation of the light source intensity. in some examples, the illumination intensity for each zone can be varied based on the displayed content, allowing improved contrast ratios. in some examples, all zones may be illuminated simultaneously with a zonal illumination intensity based on displayed content. other devices, methods, systems, and computer-readable media are also disclosed.



[[Category:G02F1/03]]
[[Category:G02B27/01]]
[[Category:G02F1/035]]
[[Category:G02F1/21]]
[[Category:CPC_G02F1/0327]]