公开(公告)号：US20230324679A1

公开(公告)日：2023-10-12

申请号：US18074721

申请日：2022-12-05

Applicant: Samsung Display Co., LTD.

Inventor： Seong Jin YEON ,  Voronov ALEXANDER ,  Jun Ho PARK ,  Je Kil RYU

IPC: G02B26/12 ,  G02B26/10 ,  G02B26/04

CPC classification number: G02B26/128 ,  G02B26/101 ,  G02B2207/117 ,  G02B26/04 ,  G02B26/121 ,  G02B26/123

Abstract: A laser device includes a light source part; an optical path adjustment part; a light distribution part that splits a laser beam into a plurality of sub-beams to a substrate; a drive part that moves the light distribution part and adjusts relative positions between the light distribution part and the substrate; a sensing part; and a control part. The control part generates an image based on a signal sensed by the sensing part and measures an image contrast of the image. The control part records and compares a plurality of image contrasts according to the position of the light distribution part to determine an optimal position of the light distribution part.