公开(公告)号：US20200239360A1

公开(公告)日：2020-07-30

申请号：US16849011

申请日：2020-04-15

Applicant: AGC Inc.

Inventor： Akihisa Minowa ,  Takahiro Mashimo ,  Shunji Wachi ,  Hitoshi Saiki

IPC: C03C17/42 ,  C03C21/00 ,  C23C14/00 ,  C23C14/06 ,  C23C14/10 ,  C23C14/12 ,  C23C14/34 ,  C23C14/24 ,  C23C14/58 ,  G02B1/18 ,  G02B1/11

Abstract: The present invention relate to a transparent substrate laminate (10) having a transparent substrate (12), an antireflection layer (14) and an antifouling layer (16) in this order, the antireflection layer (14) contains a low-refractive index layer (142) and a high-refractive index layer (144) laminating alternately, the antifouling layer (16) contains a fluorine-containing organic compound, and when washing with ethanol and washing with a fluorine solvent under specific conditions are carried out on the antifouling layer (16) in this order, the antifouling layer (16) satisfies a ratio (i)/(ii) being more than 1 in which (i) represents a fluorine amount after the washing with ethanol and (ii) represents a fluorine amount after the washing with the fluorine solvent, and in which the fluorine amount (F amount) is measured by using an X-ray fluorescence instrument (XRF).