Patent ID: 7758396

Claim:
A method of manufacturing a plasma display panel including: a step of disposing a front panel and a back panel opposed to each other having a communication hole to inside the opposed front and back panels with a sealing material for forming a discharge space inside; a step of disposing a space between a pedestal and the back panel, the pedestal having a hole area larger than an area of the communication hole and an inner diameter area of an exhaust pipe and having a gas absorbing material freely moveable within the space formed by the pedestal and the back panel, wherein the as absorbing material has a hole and an outer diameter smaller than an inner diameter of the pedestal and greater than the inner diameter of the exhaust pipe, the step further comprising positioning the exhaust pipe having the pedestal with an exhaust pipe fixing material so that the pedestal surrounds the communication hole of the back panel; a step of sealing the front panel and the back panel opposed to each other and the exhaust pipe, by softening the sealing material and the exhaust pipe fixing material by heating in a heating oven and then hardening the sealing material and the exhaust pipe fixing material by cooling; a step of an exhaust-baking wherein the step comprises vacuuming the discharge space through the exhaust pipe adhered under direction of the back panel during heating in the heating oven; a step of sealing a discharge gas into the discharge space through the exhaust pipe; and a step of sealing the exhaust pipe.