Laser cutting apparatus and method and method of manufacturing display panel by using laser cutting method
AssigneeSamsung Display Co., Ltd.
InventorJoonyung Jang
Life of this patent
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Abstract
A laser cutting apparatus and method, and a method of manufacturing a display panel by using a laser cutting method are provided. A laser cutting method includes: providing a panel in which a second substrate is stacked on a first substrate including a conductive wiring; and removing a portion of the second substrate to expose the conductive wiring by emitting a laser beam to the second substrate, and the laser beam is emitted to the second substrate at an incident angle equal to or greater than a threshold angle at which total reflection occurs in the second substrate.
Claims12
A laser cutting method comprising:
- providing a panel in which a second substrate is stacked on a first substrate comprising a conductive wiring;
- and
- removing a portion of the second substrate to expose the conductive wiring by emitting a laser beam to the second substrate,
- wherein the laser beam is emitted to the second substrate at an incident angle equal to or greater than a threshold angle at which total reflection occurs in the second substrate,
- wherein a light guide is arranged on the second substrate such that the laser beam passes through the light guide and is emitted to the second substrate, and
- wherein the light guide has a same refractive index as that of the second substrate.
A method of manufacturing a display panel, the method comprising:
- providing a base substrate comprising a display and a conductive wiring configured to electrically connect the display to an external device, and a panel in which an encapsulation substrate covering the display is stacked on the base substrate;
- and
- removing a portion of the encapsulation substrate to expose the conductive wiring by emitting a laser beam to the encapsulation substrate,
- wherein the laser beam is emitted to the encapsulation substrate at an incident angle equal to or greater than a threshold angle at which total reflection occurs in the encapsulation substrate,
- wherein a light guide is arranged on the encapsulation substrate such that the laser beam passes through the light guide and is emitted to the encapsulation substrate, and
- wherein the light guide has a same refractive index as that of the encapsulation substrate.
Dependencies are inferred from the claim text.