Substrate design for optimized performance of up-conversion...

Details Substrate design for optimized performance of up-conversion... Substrate design for optimized performance of up-conversion...

2006-07-11

2006-07-11

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

C365S151000

Reexamination Certificate

active

07075707

ABSTRACT:
Methods and compositions for using an up-conversion phosphor as an emitting material in a reflective displays and Polymer compositions for display mediums, and blue green red (BRG) display mediums. Roles of the pumping duration and character on the temperature and the efficiency of the up-conversion process in (Ytterbium, Erbium or Thulium) co-doped fluoride crystals are set forth. Methods, compositions and display mediums for using up-conversion phosphors in both reflective and transmissive displays in which the substrate and pixel shapes are designed to maximally remove heat deposited in the emitting material and thereby improve the efficiency of up conversion.

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