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:
Dec. 03, 2024
Filed:
Jun. 06, 2023
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jun Mo Koo, Suwon-si, KR;
Jung Hun You, Suwon-si, KR;
Sang Hum Lee, Suwon-si, KR;
Bong Choon Kim, Suwon-si, KR;
Yoon Jung Kim, Suwon-si, KR;
Ri Ra Jung, Suwon-si, KR;
Kyu Sik Kim, Suwon-si, KR;
Kwang Ho Shin, Suwon-si, KR;
Han Mam Jeong, Suwon-si, KR;
Eun Su Park, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A polarizing plate and an optical display apparatus including the same are provided. The polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer. The first retardation layer has an in-plane retardation (Re) of 200 nm to 250 nm at a wavelength of 550 nm; the second retardation layer has an in-plane retardation (Re) of 80 nm to 140 nm at a wavelength of 550 nm; and the polarizing plate has a total transmittance difference of 2% or more between total transmittance at a wavelength of 450 nm and total transmittance at a wavelength of 420 nm.