Invention Grant
- Patent Title: Hard coat film, polarizing plate, and image display apparatus
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Application No.: US14247292Application Date: 2014-04-08
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Publication No.: US09904098B2Publication Date: 2018-02-27
- Inventor: Tomonori Ueno , Atsushi Kishi , Hiroki Kuramoto
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Ibaraki-shi
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-101246 20130513; JP2014-065457 20140327
- Main IPC: G02B5/30
- IPC: G02B5/30 ; G02F1/133 ; G02F1/1335 ; G02B1/14 ; G02B1/115

Abstract:
Provided is a hard coat film, including: a transparent film; and a hard coat layer formed on the transparent film, in which: the surface free energy of the hard coat layer is equal to or more than a certain value; the hard coat film has a mixed region in which a component of the transparent film and a component of the hard coat layer are mixed; the refractive index of the mixed region continuously changes toward the thickness direction of the hard coat film; and a refractive index change gradient falls within a certain range.
Public/Granted literature
- US20140335351A1 HARD COAT FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS Public/Granted day:2014-11-13
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