公开(公告)号：US10217680B2

公开(公告)日：2019-02-26

申请号：US15403330

申请日：2017-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae Seo Park ,  Song Ho Jeong ,  Oh Seok Kwon ,  Jong Tae Kim ,  Choo Ho Kim

IPC: G06K9/00 ,  H01L21/66 ,  G01N21/64 ,  G01N21/95 ,  H01L33/56

Abstract: A test apparatus includes a lighting unit radiating light on a to-be-tested object having a light transmitting resin containing a light conversion material; a camera unit obtaining an image of the to-be-tested object while the light transmitting resin is emitted by receiving light emitted by the lighting unit; and a controller determining whether the to-be-tested object is defective by calculating gray values from the image obtained by the camera unit.