Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other...http://www.google.com/patents/US7649674?utm_source=gb-gplus-sharePatent US7649674 - Electro-optic display with edge seal
