Electron emission display having electron beams with reduced...

Details Electron emission display having electron beams with reduced... Electron emission display having electron beams with reduced...

2006-10-20

2009-08-04

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S495000, C313S496000, C313S310000, C315S169300

Reexamination Certificate

active

07569986

ABSTRACT:
An electron emission display includes first and second substrates facing each other to form a vacuum envelope, a plurality of driving electrodes formed on the first substrate, a plurality of electron emission regions controlled by the driving electrodes, a focusing electrode disposed on and insulated from the driving electrodes and provided with first openings through which electron beams pass, a plurality of phosphor layers formed on a surface of the second substrate, an anode electrode formed on surfaces of the phosphor layers, and a plurality of spacers for maintaining a gap between the first and second substrates. The focusing electrode includes second openings for forming a potential control unit for forming a potential well, the potential control unit being formed between the first openings to correspond to the spacers. The potential well attracts the electron beams, improving the directionality of the beams.

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European Search Report dated Apr. 5, 2007, for EP 06122729.4, in the name of Samsung SDI Co., Ltd.

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