LCD based environment scanner and 3-D display

Details LCD based environment scanner and 3-D display LCD based environment scanner and 3-D display

2011-06-07

2011-06-07

Wong, Tina M (Department: 2874)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Liquid crystal lenses other than for eyewear

C349S001000, C349S199000, C359S017000

Reexamination Certificate

active

07956981

ABSTRACT:
A liquid crystal display (LCD) device (100) has the dual functionality of image display and environment scanning. Specifically, during environment scanning mode, the LCD device searches for targets, i.e., markers (700) in the environment. To enable such scanning, the LC layer (20) is configured to provide a scanning optical path allowing passage of a directional marker signal. The scanning optical path is controlled according to one or more transparent openings programmed to scan at least part of the LC layer. As a marker (700) is detected, based on the marker signal, a positional coordinate (e.g., relative angular position) is determinable based on the current scan position of the transparent opening(s).

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