A computer screen that looks blank to anyone not wearing a pair of special polarising glasses has been developed by a Tokyo-based electronics company, Iizuka Denki Kogyo.

The company believes the modified LCD monitor will appeal to financial institutions that need to keep sensitive information safe from prying eyes in a busy environment.

Only authorised viewers wearing the special glasses would be able to read data on the screen. Anyone looking over their shoulder would see nothing at all.
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