Actually, you should be able to get SIX colors out of a three legged LED assembly. A LED hexode?
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Hi Greegor
Regarding your last paragraph. My guess are pico color projectors with infinite focus - and cheap big electronic color video paper - with built-in paper-flat rechargeable battery - place it over an area with wireless energy and wireless link capabilities:
July 15, 2010, Brighter Color for Reflective E-Reading Displays. HP is developing new materials for brighter low-power displays:
February 4, 2010, Qualcomm Aims to Bring Color, Video to E-Readers:
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Ah - you mean:
How about a head lamp with 3 LEDs in it (Triode)
Jamie
Of course, there are "tri-color LEDs"
...amplify light? (joking..) More like a control electrode to modulate intensity, i would guess.
Reading further, it is indeed useable as a triode:
Reality shucks... :-)
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There are SEDs, smoke emitting diodes. Dark light emitting diodes, shadows must lit, I guess. And so on.
Dark Emitting Axial Diodes
Cheers! Rich
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