Today's pick up in organic semiconductor patents.
6,580,545 (Jun. 17 2003)
IanD. Morrison and JosephM. Jacobson
E Ink Corporation
A display comprises spaced first and second electrodes, and a plurality of
electrochromic nanoparticles disposed between the electrodes, each of the
nanoparticles having an electron-rich state and an electron-depleted
state, the two states differing in at least one optical characteristic.
Upon injection of charge from one of the electrodes, the nanoparticles
switch between their electron-rich and electron-depleted states, thus
changing an optical characteristic of the display.