CPC G02B 27/0172 (2013.01) [G02F 1/0136 (2013.01); G02F 1/133526 (2013.01); G02F 1/133536 (2013.01); G06F 1/163 (2013.01); G02B 27/0176 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0161 (2013.01); G02B 2027/0178 (2013.01); G02F 1/1396 (2013.01); G02F 1/13345 (2021.01)] | 20 Claims |
1. A device, comprising:
a reflective polarizer configured to selectively reflect or transmit a polarized light based on a polarization of the polarized light;
a display element disposed at a first side of the reflective polarizer, and configured to output a first image light representing a virtual image;
a polarization switch disposed between the display element and the reflective polarizer, and configured to switch or maintain a polarization of the first image light; and
an active dimming device disposed at a second side of the reflective polarizer, and configured to provide an adjustable transmittance of an input light.
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