Full color upconversion display

Details Full color upconversion display Full color upconversion display

H - Electricity

01

L

375/49, 345/7

H01L 31/16 (2006.01) G02F 2/02 (2006.01) G09G 3/02 (2006.01) G21K 4/00 (2006.01)

Patent

CA 2039200

FULL COLOR UPCONVERSION DISPLAY ABSTRACT OF THE DISCLOSURE Full color alphanumeric or image displays are pro- duced by upconverting near infrared radiation into visible light. The display system includes an upconverting screen including a host material doped with rare earth ions. The screen may be divided into pixels which may be selectively excited by infrared radiation to emit visible light of a desired color. An intensity-modulated infrared laser beam is scanned across the surface of the screen to selectively excite the screen pixels and produce the desired image.

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