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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 10048522 B1

PDFFull Text
Date of Patent:
Aug. 14, 2018

Filed:

Mar. 07, 2014

Optical layered body, polarizer, method for producing polarizer, image display device, method for producing image display device, and method for improving visibility of image display device

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Takashi Kuroda, Tokyo, JP;

Makoto Honda, Tokyo, JP;

Assignee:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Jia Pan

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/13363 (2006.01); G02F 1/1335 (2006.01); G02B 5/30 (2006.01); B32B 7/02 (2006.01); G02B 1/11 (2015.01); G02B 5/32 (2006.01); B29C 47/00 (2006.01); B29C 47/88 (2006.01); B29C 47/92 (2006.01); B32B 27/36 (2006.01); B29L 9/00 (2006.01); B29L 11/00 (2006.01); B29C 47/02 (2006.01); B29C 47/06 (2006.01); B29C 47/14 (2006.01); B29K 67/00 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1333 (2013.01); B29C 47/0021 (2013.01); B29C 47/8805 (2013.01); B29C 47/8845 (2013.01); B29C 47/92 (2013.01); B32B 7/02 (2013.01); G02B 1/11 (2013.01); G02B 5/3033 (2013.01); G02B 5/3083 (2013.01); G02B 5/32 (2013.01); G02F 1/13363 (2013.01); G02F 1/133502 (2013.01); G02F 1/133528 (2013.01); B29C 47/0057 (2013.01); B29C 47/025 (2013.01); B29C 47/065 (2013.01); B29C 47/14 (2013.01); B29C 2947/92152 (2013.01); B29C 2947/92247 (2013.01); B29C 2947/92447 (2013.01); B29C 2947/92647 (2013.01); B29C 2947/92742 (2013.01); B29C 2947/92942 (2013.01); B29K 2067/003 (2013.01); B29K 2995/0026 (2013.01); B29K 2995/0034 (2013.01); B29L 2007/008 (2013.01); B29L 2009/005 (2013.01); B29L 2011/0066 (2013.01); B32B 27/36 (2013.01); G02F 2001/133562 (2013.01); G02F 2201/38 (2013.01); G02F 2202/40 (2013.01); G02F 2413/08 (2013.01); Y10T 29/49778 (2015.01);
Abstract

The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

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