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:
Nov. 12, 2013
Filed:
Dec. 07, 2009
Hwa-sung Woo, Suwon-si, KR;
Seung-ju Lee, Hwaseong-si, KR;
Hee-wook DO, Cheonan-si, KR;
Jeong-soo Choi, Suwon-si, KR;
Hee-seop Kim, Hwaseong-si, KR;
Joo-seok Yeom, Gwacheon-si, KR;
Hyang-yul Kim, Hwaseong-si, KR;
Joo-nyung Jang, Gyeongsan-si, KR;
Sung-woon Kim, Suwon-si, KR;
Cheol Shin, Hwaseong-si, KR;
Dong-chul Shin, Seoul, KR;
Hwa-Sung Woo, Suwon-si, KR;
Seung-Ju Lee, Hwaseong-si, KR;
Hee-Wook Do, Cheonan-si, KR;
Jeong-Soo Choi, Suwon-si, KR;
Hee-Seop Kim, Hwaseong-si, KR;
Joo-Seok Yeom, Gwacheon-si, KR;
Hyang-Yul Kim, Hwaseong-si, KR;
Joo-Nyung Jang, Gyeongsan-si, KR;
Sung-Woon Kim, Suwon-si, KR;
Cheol Shin, Hwaseong-si, KR;
Dong-Chul Shin, Seoul, KR;
Samsung Display Co., Ltd., , KR;
Abstract
An optical film assembly includes a first polarization plate disposed below a liquid crystal layer and having a first absorption axis, a second polarization plate disposed above the liquid crystal layer and having a second absorption axis, an A-plate disposed between the first polarization plate and the second polarization plate, and a negative C-plate disposed between the first polarization plate and the second polarization plate. A thickness-direction phase retardation value of the negative C-plate is equal to or less than a value acquired by subtracting about 75 nanometers from a thickness-direction phase retardation value of the liquid crystal layer and the thickness-direction phase retardation value of the negative C-plate is equal to or greater than a value acquired by subtracting about 275 nanometers from the thickness-direction phase retardation value of the liquid crystal layer.