Patent ID: 9272364
Filing Date: 2016-03-01
CPC Classification: B23K,B41J,B41M

Claim Text:
1. A laser irradiation device, comprising: a laser generator scanning one or more regions of a substrate by irradiating a preheating laser beam in a predetermined direction; a laser generator scanning the substrate by projecting a patterning laser beam that has an intensity greater than the preheating laser beam toward the substrate in the predetermined direction; and a mask defining a pattern passing the patterning laser beam; a first projection lens spaced-apart from the preheating laser beam, refracting and irradiating the patterning laser beam passing through the mask to partially overlap the one or more regions on the substrate irradiated by the preheating laser beam, the patterning laser beam disposed behind the preheating laser beam on the substrate along the predetermined direction; and a second patterned mask formed below the laser generator irradiating the substrate with the preheating laser beam, shaping the preheating laser beam to form a predetermined shape upon the substrate.