• Patent Title: REFLECTIVE MICROPRISM SCATTERING ELEMENT-BASED BACKLIGHT, MULTIVIEW DISPLAY, AND METHOD PROVIDING LIGHT EXCLUSION ZONE
  • Application No.: US17869723
    Application Date: 2022-07-20
  • Publication No.: US20220350071A1
    Publication Date: 2022-11-03
  • Inventor: David A. FattalThomas HoekmanColton BukowskyMing Ma
  • Applicant: LEIA INC.
  • Applicant Address: US CA Menlo Park
  • Assignee: LEIA INC.
  • Current Assignee: LEIA INC.
  • Current Assignee Address: US CA Menlo Park
  • Main IPC: F21V8/00
  • IPC: F21V8/00
REFLECTIVE MICROPRISM SCATTERING ELEMENT-BASED BACKLIGHT, MULTIVIEW DISPLAY, AND METHOD PROVIDING LIGHT EXCLUSION ZONE
Abstract:
A reflective microprism scattering element based backlight, a multiview display, and a method backlight operation include reflective microprism scattering elements configured to provide emitted light having a predetermined light exclusion zone. The reflective microprism scattering element based backlight includes a light guide configured to guide light and a plurality of the reflective microprism scattering elements having sloped reflective sidewalls configured to reflectively scatter out the guided light as the emitted light. The sloped reflective sidewalls of the reflective microprism scattering elements are configured to provide the predetermined light exclusion zone of the emitted light. The multiview display includes the reflective microprism scattering elements arranged as an array of reflective microprism multibeam elements. The multiview display also includes an array of light valves to modulate the directional light beams to provide the multiview image, except within the predetermined light exclusion zone.
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