SINTERING METHOD OF SEALANT FOR EVACUATION PACKAGING OF FIELD EFFECT FIELD EMISSION DISPLAY DEVICE

摘要

The present invention facilitates alignment by making the sealant applied to the upper substrate or the lower substrate smoothly before aligning the upper substrate and the lower substrate of the FED, and prevents the upper substrate and the lower substrate from shifting each other when the sealant is sintered. A sealant sintering method for vacuum packaging of an FED that enables sintering of the sealant by local heating. The sealant sintering method for vacuum packaging of the FED of the present invention uses a sealant on at least one edge of an upper substrate having an anode electrode and a phosphor and a lower substrate having a cathode electrode and an emitter to maintain the interior of the FED element in a vacuum state. In the FED vacuum packaging sealant sintering method of sintering and sintering after coating, after drying or pre-sintering the coated sealant, the protective film is applied to the phosphor or emitter portion provided on the substrate to which the sealant is applied, and then dried. Making a step; Grinding the sealant to remove unevenness of the sealant to smooth the surface of the sealant and adjust the height of the sealant; And sintering the sealant while aligning the upper substrate and the lower substrate after removing and cleaning the protective film. In addition, the protective film may be first applied, the protective film at the position where the sealant is to be applied may be removed, and then the sealant may be applied to dry and presinter.