Invention Grant
US09069197B2 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
有权
光学层叠体，偏振片，偏振片的制造方法，图像显示装置，图像显示装置的制造方法以及提高图像显示装置的可见性的方法
- Patent Title: 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
- Patent Title (中): 光学层叠体，偏振片，偏振片的制造方法，图像显示装置，图像显示装置的制造方法以及提高图像显示装置的可见性的方法
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Application No.: US14275397Application Date: 2014-05-12
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Publication No.: US09069197B2Publication Date: 2015-06-30
- Inventor: Takashi Kuroda , Makoto Honda
- Applicant: DAI NIPPON PRINTING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2012-125412 20120531; JP2012-223583 20121005
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02F1/1333 ; B32B7/02 ; G02B1/11 ; G02F1/1335 ; G02B5/32 ; G02F1/13363 ; B32B27/36
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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