Patent ID: 11957032
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Semiconductors (Electrical engineering)
Classification: CPC H  F  G | IPC F  G  H

Claim 0:
1. A display system comprising:
a backlight configured to emit substantially collimated polarized light from an emission surface thereof, the emitted polarized light polarized along a polarization direction;
a display panel configured to receive an illumination light and form an image; and
a grating system substantially coextensive in length and width with the display panel and the emission surface and comprising a plurality of substantially parallel elongated features extending along an in-plane first direction and arranged along an orthogonal in-plane second direction, the grating system configured to receive and transmit an incident polarized light as a first transmitted light having different first and second polarization states in response to different respective first and second signals applied to the grating system, such that the image formed by the display panel exits the display system as an exiting image having different first and second intensity profiles versus transmission angle in response to the respective first and second signals applied to the grating system.