Patent ID: 7432646
Filing Date: 2008-10-07
Classification: H01J

Abstract:
1. A thermal electron emission backlight device, comprising: a first substrate and a second substrate disposed in parallel and separated by a predetermined distance from each other; a first anode electrode and a second anode electrode facing the first anode electrode, said first anode electrode and said second anode electrode being formed on inner surfaces of the first substrate and the second substrate, respectively; cathode electrodes disposed at predetermined intervals and in parallel with each other between the first substrate and the second substrate; a phosphor layer formed on the second anode electrode; and a plurality of spacers disposed between the first substrate and the second substrate so as to maintain the predetermined distance therebetween; wherein, when a predetermined voltage is applied to the cathode electrodes, thermal electrons are emitted from the cathode electrodes; wherein the spacers are conductive spacers which electrically connect the first anode electrode to the second anode electrode.