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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.:

US 10073204 B1

PDFFull Text
Date of Patent:
Sep. 11, 2018

Filed:

Nov. 24, 2014

Optical film stack including retardation layer

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Sun-Yong Park, Hwaseong-si, KR;

Song-Geun Lee, Youngdeumpo gu Seoul, KR;

Matthew B. Johnson, Woodbury, MN (US);

Adam D. Haag, Woodbury, MN (US);

Assignee:

3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);

Attorney:

Daniel J. Iden

Primary Examiner:

Kendrick Hsu

Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/30 (2006.01); B32B 7/12 (2006.01); B32B 23/04 (2006.01); B32B 23/08 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); G02F 1/13363 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); B32B 7/12 (2013.01); B32B 23/04 (2013.01); B32B 23/08 (2013.01); B32B 27/08 (2013.01); B32B 27/306 (2013.01); B32B 27/327 (2013.01); B32B 27/365 (2013.01); G02B 5/305 (2013.01); G02B 5/3016 (2013.01); G02B 5/3025 (2013.01); G02B 5/3041 (2013.01); G02F 1/13362 (2013.01); G02F 1/13363 (2013.01); G02F 1/133536 (2013.01); B32B 2255/26 (2013.01); B32B 2457/202 (2013.01); B32B 2551/00 (2013.01); G02F 2001/133545 (2013.01); G02F 2001/133633 (2013.01); G02F 2001/133635 (2013.01); G02F 2001/133638 (2013.01); G02F 2001/133726 (2013.01); G02F 2202/28 (2013.01); G02F 2202/40 (2013.01);
Abstract

Optical film stacks are described. More particularly, optical film stacks including a half-wave retardation layer are described. Achromatic half-wave retardation layers, including achromatic half-wave layers formed from a quarter-wave and a three-quarters-wave retardation layer, are described. Film stacks including reflective polarizers tuned to reduce wavelength dispersion of the half-wave retardation layer are also described.

Find Patent Forward Citations

Park, Sun-Yong. (2018). Optical film stack including retardation layer (U.S. Patent No. 10073204). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10073204

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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