A display device includes a backside and a front-side substrates facing each other with a vacuum space therebetween; and a plurality of electron emission sites provided on the backside substrate. Each electron emission sites includes a bottom electrode formed on a surface of the backside substrate proximate...http://www.google.de/patents/US6700132?utm_source=gb-gplus-sharePatent US6700132 - Flat panel display device utilizing electron emission devices
