Invention Grant
- Patent Title: Opaque white coating with non-conductive mirror
-
Application No.: US15669729Application Date: 2017-08-04
-
Publication No.: US10592053B2Publication Date: 2020-03-17
- Inventor: Naoto Matsuyuki , Douglas J. Weber
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agent Kendall W. Abbasi; Matthew R. Williams
- Main IPC: G06F3/044
- IPC: G06F3/044 ; C03C17/34 ; C03C17/36 ; G02B5/22 ; G02B5/02 ; H04M1/02

Abstract:
An opaque cover is provided for a capacitive sensor. The cover includes a transparent substrate, and at least one white coating layer including white pigments disposed over at least one portion of the transparent substrate. The cover also includes a non-conductive mirror structure disposed over the at least one white coating layer. The non-conductive mirror structure includes a number of first dielectric layers having a first refractive index interleaved with second dielectric layers having a second refractive index. The first and second dielectric layers have dielectric constants below a threshold.
Public/Granted literature
- US20170357350A1 OPAQUE WHITE COATING WITH NON-CONDUCTIVE MIRROR Public/Granted day:2017-12-14
Information query