Abstract: A laser irradiation apparatus includes a stage on which a substrate is provided, a laser irradiation unit which irradiates a laser to the substrate on the stage, an image acquiring unit which acquires an image of a predetermined region of the substrate, and a control unit electrically connected to the laser irradiation unit and the image acquiring unit, where the control unit calculates a brightness value corresponding to an average value of grayscale values of the image provided from the image acquiring unit, compares a calculated brightness value with a reference brightness value, and outputs data on performance of the laser based on a result of comparing the calculated brightness value with the reference brightness value.

Abstract: A laser irradiation apparatus includes a stage on which a substrate is provided, a laser irradiation unit which irradiates a laser to the substrate on the stage, an image acquiring unit which acquires an image of a predetermined region of the substrate, and a control unit electrically connected to the laser irradiation unit and the image acquiring unit, where the control unit calculates a brightness value corresponding to an average value of grayscale values of the image provided from the image acquiring unit, compares a calculated brightness value with a reference brightness value, and outputs data on performance of the laser based on a result of comparing the calculated brightness value with the reference brightness value.

Abstract: A film alignment device includes a stage on which a film is disposed and an alignment body above the stage, the alignment body and the stage being spaceable apart from and facing each other. The stage includes a plurality of guide parts at sides thereof. The alignment body includes a plurality of pins configured to move in the guide parts to align the film.