Method of manufacturing flat panel display for heating sealing unit with different laser beams

A method of manufacturing a flat panel display, the method comprising:

• providing a plurality of sealing units to respectively surround a plurality of display elements formed between first and second substrates facing each other;
• first emitting a first laser beam, from a first laser source, clockwise or counterclockwise along perimeters of the sealing units;
• and
• second emitting a second laser beam substantially simultaneously, from a second laser source different from the first laser source, to facing sides of adjacent ones of the sealing units onto which the first laser beam has been emitted.

A method of manufacturing a flat panel display, the method comprising:

• forming a plurality of display elements between first and second substrates;
• forming a plurality of sealing units between the first and second substrates to respectively surround the display elements;
• sequentially emitting a first laser beam, from a first laser source, along perimeters of the sealing units;
• and
• substantially simultaneously emitting a second laser beam, from a second laser source different from the first laser source, to facing sides of adjacent ones of the sealing units onto which the first laser beam has been emitted.