The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Feb. 03, 2023
Samsung Display Co., Ltd., Yongin-si, KR;
Jooyoung Yoon, Suwon-si, KR;
Yunseok Han, Asan-si, KR;
Dowon Yi, Seoul, KR;
Joo-Young Lee, Hwaseong-si, KR;
Hyun-Koo Lee, Seoul, KR;
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
Abstract
An apparatus for inspecting a display panel includes a light source, a half mirror reflecting a first beam which is a portion of a source beam irradiated from the light source and transmitting a second beam which is another portion of the source beam toward a display panel, a reflective mirror reflecting the second beam transmitting the half mirror and the display panel to return to the half mirror, a panel supporter supporting the display panel between the half mirror and the reflective mirror, a wave plate disposed between the half mirror and the reflective mirror and transmitting the second beam, a rotator rotating the wave plate at a predetermined angle and an imaging detector photographing an interference fringe by the first beam and the second beam.