Method of forming a fluoresecent screen by electrodeposition on

Details Method of forming a fluoresecent screen by electrodeposition on Method of forming a fluoresecent screen by electrodeposition on

1994-08-15

1995-11-14

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Controlling current distribution within bath

205109, 205122, 205162, 205163, 205171, 205188, 2041811, 2041815, 2041816, 2041817, C25D 1302, C25D 1500

Patent

active

054663580

ABSTRACT:
A method of forming a fluorescent screen for a field emission display by electrodeposition comprises: forming a transparent solid electrode or transparent stripe or dot electrodes (1) in an effective area and a guard electrode (3, 8) in an ineffective area surrounding the effective area on the inner surface of a screen panel (13), immersing the screen panel (13) in an electrodeposition solution (12G, 12B, 12R, 12M) containing dispersed particles of a fluorescent material and contained in an electrodeposition tank (11), applying a voltage to the transparent solid electrode or the transparent stripe or dot electrodes, and a reverse bias voltage to the guard electrode (3, 8) to deposit particles of the fluorescent material only on the transparent solid electrode or the transparent stripe or dot electrodes to which the voltage is applied. The guard electrode (3, 8) prevents the deposition of particles of the fluorescent material in the ineffective area.

REFERENCES:
patent: 3314871 (1967-04-01), Heck et al.
patent: 5277784 (1994-01-01), Woo

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