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:
Mar. 22, 2022
Filed:
Jun. 08, 2020
Samsung Display Co., Ltd., Yongin-Si, KR;
Jongmin Ok, Hwaseong-si, KR;
Young Gu Kim, Yongin-si, KR;
Jiyun Park, Hwaseong-si, KR;
Jongho Son, Seoul, KR;
Sun-Young Chang, Seoul, KR;
Hyelim Jang, Hwaseong-si, KR;
Baekkyun Jeon, Yongin-si, KR;
Kyungseon Tak, Hwaseong-si, KR;
Abstract
An optical film may include a first pattern layer having a first refractive index and including a base portion and a plurality of protrusions on the base portion x, and a second pattern layer disposed on the first pattern layer and having a second refractive index different from the first refractive index. Each of the protrusions may include n sub-protrusions (n is an integer of 2 or greater), which are stacked in a thickness direction of the base portion. Each of the n sub-protrusions may have a quadrilateral shape. A side surface of the protrusion defined by the n sub-protrusions may include at least one step portion. The optical film improves display quality of a display device in front and lateral directions.