Switchable display/mirror method and apparatus

Details Switchable display/mirror method and apparatus Switchable display/mirror method and apparatus

2005-03-01

2005-03-01

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

C313S113000, C313S506000

Reexamination Certificate

active

06861788

ABSTRACT:
An apparatus (10) having a switchable display/mirror (11) and a display driver (12). In one mode of operation the switchable display/mirror provides a visual display to a viewer (using, for example, an emissive array). In another mode of operation the switchable display/mirror provides a mirror-like reflection. In a preferred embodiment, the switchable display/mirror includes a transparent organic light emitting diode array (31) that operates in conjunction with a reflective electrode (32) and a switchable circular polarizer (23). In one embodiment the switchable circular polarizer (23) can be comprised of a switchable linear polarizer (34) and a quarter waveplate (36).

REFERENCES:
patent: 4007396 (1977-02-01), Wisbey et al.
patent: 5105186 (1992-04-01), May
Radio-Electronics, “New Features in TV Sets”, Mar. 1949 (4 pp).
Pamphlet, “Intelligent Personal-Care Environment”, Apr. 2002, © 2002 Royal Philips Electronics (2 pp).
“Mobile Mirror”, Today's Forethink, Jan. 2, 2003, retrieved from the Internet: http://www.zdnet.co.ip on Feb. 25, 2003 (2 pp).
Optics and Optical Instruments Catalog N977B, Edmund Scientific, 1997, cover and p. 79.

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