US 12,313,872 B2
Static-image augmented privacy display, mode-switchable privacy display system, and method
David A. Fattal, Menlo Park, CA (US); and Thomas Hoekman, Redwood City, CA (US)
Assigned to LEIA Inc., Menlo Park, CA (US)
Filed by LEIA INC., Menlo Park, CA (US)
Filed on Aug. 25, 2022, as Appl. No. 17/895,944.
Application 17/895,944 is a continuation of application No. PCT/US2021/020163, filed on Feb. 28, 2021.
Claims priority of provisional application 62/983,918, filed on Mar. 2, 2020.
Prior Publication US 2022/0413203 A1, Dec. 29, 2022
Int. Cl. G02B 27/30 (2006.01); F21V 8/00 (2006.01)
CPC G02B 6/0016 (2013.01) [G02B 6/0018 (2013.01); G02B 6/005 (2013.01); G02B 27/30 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A static-image augmented privacy display comprising:
a privacy backlight configured to provide directional emitted light to a first view zone;
a light valve array configured to modulate the directional emitted light to provide a private image within the first view zone; and
a static display layer configured to provide a static image in a second view zone as static directional emitted light that exits the static-image augmented privacy display without passing through the light valve array, the static display layer being adjacent to and separated from an emission surface of the light valve array and transparent to light representing the private image,
wherein the first and the second view zones are mutually exclusive to one another, the private image being configured to be visible exclusively in the first view zone and the static image being configured to be visible exclusively in the second view zone.