"In the mid-1990s, the liquid crystal displays in hundreds of millions of
pocket calculators and digital watches all over the world made use of simple,
inexpensive, plastic sheet polarizers that _____________________ invented in
the 1920s."
I dare say that this was Edwin Land. However, these sheet polarizers would have
been useless had the "liquid" crystals in the displays not posessed a peculiar
property when under the influence of an electric current.
andy
