Invention Grant
- Patent Title: Projected capacitive touch panel with silver-inclusive transparent conducting layer(s), and/or method of making the same
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Application No.: US15904490Application Date: 2018-02-26
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Publication No.: US10078409B2Publication Date: 2018-09-18
- Inventor: Vijayen S. Veerasamy , Jason Blush , Eric W. Akkashian , Willem Den Boer , Alexey Krasnov
- Applicant: Guardian Glass, LLC
- Applicant Address: US MI Auburn Hills
- Assignee: Guardian Glass, LLC
- Current Assignee: Guardian Glass, LLC
- Current Assignee Address: US MI Auburn Hills
- Agency: Nixon & Vanderhye P.C.
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G02F1/1333 ; G06F3/041

Abstract:
Certain example embodiments relate to capacitive touch panels. First and second glass substrates are substantially parallel and spaced apart from one another. At least one multi-layer transparent conductive coating (TCC) is patterned into electrodes and located between the first and second substrates. The TCC(s) include(s) at least one conductive layer including silver, a dielectric layer including zinc oxide under and directly contacting the conductive layer including silver, and a dielectric layer(s) including tin oxide or silicon nitride over the conductive layer including silver. Processing circuitry electrically connects to the electrodes and measures an aspect of the electrodes' capacitance. A laminate material is located between the first and second glass substrates. The TCC(s), when blanket deposited, may have a visible transmission of at least 88%, a sheet resistances of no more than 10 ohms per square, and a haze of no more than 0.5%. Mutual and self-capacitance designs are disclosed.
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