Laser crystallization apparatus

A laser crystallization apparatus comprising:

• a plurality of light source units which irradiates a laser beam;
• and
• a first path conversion unit and a second path conversion unit which convert the laser beam incident from the light source units into a linear beam having a long axis parallel to a first direction and a short axis parallel to a second direction,
• wherein the first path conversion unit includes a first incident window, a first emission window, a first reflection unit, and a second reflection unit,
• the second path conversion unit includes a second incident window, a second emission window, a third reflection unit, and a fourth reflection unit,
• the first incident window of the first path conversion unit, the first reflection unit of the first path conversion unit, the third reflection unit of the second path conversion unit, and the second incident window of the second path conversion unit are sequentially positioned along the first direction,
• the first emission window of the first path conversion unit and the second reflection unit of the first path conversion unit are sequentially positioned along the second direction, and
• the fourth reflection unit of the second path conversion unit and the second emission window of the second path conversion unit are sequentially positioned along the second direction.