公开(公告)号：US20190061314A1

公开(公告)日：2019-02-28

申请号：US16081198

申请日：2017-02-07

Applicant: AGC INC.

Inventor： Yuki AOSHIMA ,  Hidefumi ODAKA

IPC: B32B7/02 ,  B32B17/06 ,  B32B9/04 ,  G02F1/155 ,  H01B5/14

Abstract: A laminated substrate for an electrochromic dimmer element includes a glass substrate; and a transparent conductive film. The glass substrate includes a silicon oxide, an aluminum oxide, a boron oxide, an alkaline earth metal oxide, and an alkali metal oxide in a total amount of 90 mol % or more, and includes the alkali metal oxide in a total amount of 12 mol % or less.The transparent conductive film includes an indium oxide film containing tin, and a tin oxide film containing at least one of tantalum, antimony and fluorine, in this order from a glass substrate side.The indium oxide film is formed directly on the glass substrate, a refractive index and an extinction coefficient of the indium oxide film at a wavelength of 1.3 μm is less than 0.4, and greater than 0.4, respectively.A film thickness of the tin oxide film is greater than 35 nm.