One surface of a substrate of an LED module for a flat panel display has 8.times.8 element areas divided into a matrix form. Row electrodes extend on element areas arranged along the row direction, and column electrodes insulated from the row electrodes extend on element areas arranged in the column...http://www.google.fr/patents/US4445132?utm_source=gb-gplus-shareBrevet US4445132 - LED Module for a flat panel display unit
