Patent ID: 7799584

Claim:
A method of manufacturing a light emitting device comprising: preparing a first substrate and a second substrate; coating sealant on a predetermined area of the first and second substrates; safely loading the first and second substrate on first and second substrate supporters inside a process chamber comprising the first and second substrate supporters and an open-close valve for safely loading and fixing the first and second substrates by electrostatic force; moving the second substrate supporter on which the second substrate is disposed to align the first and second substrates; detaching the second substrate from the second substrate supporter through inverting a polarity of electrostatic force of the second substrate supporter to attach the first and second substrates to each other; injecting air into the process chamber through the open-close valve to apply atmosphere pressure to the outside of the attached first and second substrates; and hardening the sealant to seal the first and second substrates, wherein the second substrate supporter comprises an electro static chuck comprising more than two electrodes having different polarity and a polarity inverting unit for inverting polarities of the electrodes, wherein in attaching the first and second substrates, the second substrate free-falls before attaching the first and second substrates by inverting the polarities of the electrodes using the polarity inverting unit, and is disposed on the first substrate, wherein if the polarity of the electrodes is inverted, a repulsive force is generated between the second substrate supporter and the second substrate.