Patent ID: 7572162

Claim:
A display panel manufacturing method, the display panel including an element substrate with electroluminescent elements formed thereon and a sealing substrate bonded to the element substrate at a peripheral panel bonding part thereof for sealing a space over the element substrate, comprising the steps of: forming a frame-shaped groove on the panel bonding part of the sealing substrate, forming a frame-shaped glass paste layer by introducing a paste including a low melting point glass powder and a solvent into the groove, conducting a thermal processing by volatilizing the solvent contained in the glass paste layer to provide a low melting point glass frame, forming a low heat resistant layer on the surface of the sealing substrate in which the low melting point glass frame is provided, the low heat resistant layer made of a material having a heat resistant temperature lower than the temperature of the thermal processing, and with the element substrate arranged to face the sealing substrate, on which the low heat resistant layer is formed, at a predetermined distance, sealing a space between the element substrate and the sealing substrate by directing a laser beam to the low melting point glass frame to heat and melt the low melting point glass, so that the low melting point glass is raised towards the element and the two substrates are welded together along the peripheries thereof by the raised glass.