Patent ID: 11917121
Assignee: INTERDIGITAL MADISON PATENT HOLDINGS, SAS
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A method, performed by a light field display device, comprising:
altering a polarizing state of light passing through a first layer by adjusting an electrical state of an electrically adjustable liquid crystal comprised in the first layer; and
scattering the light using a second layer, the second layer parallel to the first layer and comprising a birefringent material having an optical interface to a substrate with surface features, wherein a refractive index difference associated with the optical interface depends on the polarization state of an incident light,
wherein the light is scattered according to a first angular pattern when the polarization state of the light is altered into a first polarization state corresponding to a first refractive index difference associated with the optical interface, and
wherein the light is scattered according to a second angular pattern when the polarization state of the light is altered into a second polarization state corresponding to a second refractive index difference associated with the optical interface.