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:
Jul. 02, 2024
Filed:
Apr. 05, 2021
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO., LTD., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/956 (2006.01); G01M 11/02 (2006.01); G01N 21/21 (2006.01); G01N 21/88 (2006.01); G01N 21/95 (2006.01); G02F 1/13 (2006.01);
U.S. Cl.
CPC ...
G01N 21/956 (2013.01); G01M 11/02 (2013.01); G01N 21/21 (2013.01); G02F 1/1309 (2013.01); G01N 2021/218 (2013.01); G01N 2021/8848 (2013.01); G01N 2021/9511 (2013.01); G01N 2021/9513 (2013.01);
Abstract
An optical inspection device for an optical performance test of a display device including a lens part configured to transmit external light, a phase film part configured to change a phase difference of the external light and transmit the external light, and an image processor configured to obtain electrical information of the external light, in which a phase difference of the phase film part is at least 7000 nm.