Samsung Display Co., Ltd.

Kuhyun Kang

Gyoowan Han

Muhyun Kim

Geunwoo Yug

Ilyoung Jeong

Jaeil Kim

Seoin Han

Soobum Park

A polarizing plate-cutting device including a laser beam generator configured to emit a laser beam, a scanner including a rotating mirror configured to reflect the laser beam emitted from the laser beam generator, and a housing accommodating the rotating mirror, a condenser lens configured to condense the laser beam reflected from the rotating mirror, and a mounting block onto which the laser beam condensed by the condenser lens is irradiated and to which a polarizing plate is mounted, wherein the mounting block is fixed with respect to the scanner while the polarizing plate is being cut, and wherein the polarizing plate includes a stacking of a base substrate and a polarizing layer, the base substrate being closer to the condenser lens than the polarizing layer, and a heat resistance of the polarizing layer being lower than that of the base substrate.

Device and method of cutting polarizing plate

A laser cutting apparatus and a laser cutting method are provided. A laser cutting method includes: preparing an object on a stage; cutting the object into a set shape by relatively moving and irradiating a laser beam along the set shape with respect to the object; and performing uniform heating compensation to reduce accumulation of thermal energy of the laser beam resulting from a change of speed at a shift point where a travelling direction of the laser beam with respect to the object changes.

Laser cutting apparatus and laser cutting method using the same

Growing community of inventors

Yongin-si, South Korea

Kuhyun Kang