Field emission light source device and manufacturing method thereof

A manufacturing method of field emission light source device, comprising:

• preparing a base formed from transparent ceramic, and disposing a anode conductive layer on one surface of said base to obtain anode plate;
• preparing a cathode conductive layer on one surface of substrate to obtain cathode plate;
• disposing said anode plate and said cathode plate spaced apart from each other, and disposing said cathode plate and anode conductive layer on said anode plate opposite each other;
• next, fixing integrally said cathode plate and said anode plate by an insulating support member to form a chamber with said anode plate, said cathode plate and said insulating support member;
• vacuum sealing the chamber formed with said cathode plate, said anode plate and said insulating support member to obtain said field emission light source device;
• wherein,
• said preparation of said anode plate further comprises a step of cleaning, comprising:
• sonicating transparent ceramic successively with acetone, absolute ethanol, deionized water, and then air-drying;
• said anode conductive layer is disposed on a surface of said base by magnetron sputtering or evaporation technique;
• said preparation of said cathode plate further comprises a step of cleaning, comprising:
• sonicating said substrate successively with acetone, absolute ethanol, deionized water, and then air-drying;
• said cathode conductive layer is disposed on said substrate by magnetron sputtering technique;
• in said step of sealing, the material used for sealing is glass pastes having a melting point of 380° C. to 550° C.