Tuesday, October 28, 2008

US Patent 7442358 - Nanocarbon aggregate flakes


Surface emission displays are a potential competitor to LCDs with advantages in energy efficiency. This patent from Canon is directed to a nanocarbon flake emission material used in the display with a basic claim reading:

1. A carbonaceous particle comprising a hexagonal flake formed of an aggregate of a plurality of nanocarbons and having a side length of 0.1 to 100 μm and a thickness of 10 nm to 1 μm.

One piece of relevant prior art which seems to have been overlooked during the examination is
US Patent 6,819,034, which also teaches carbon flakes for field emission displays.