British Standards Institution

Source:: ISO
Committee:: AUE/1 - Vehicle Lighting & Visibility
Categories:: Information management | Standardization. General rules
Comment period start date:: 19/02/2025
Comment period end date:: 09/04/2025

Comment by:

9th Apr

Scope

This document specifies three procedures related to the evaluation of fingerprint visibility and cleanability of easy-to-clean coatings for cover glass used in automotive display modules. The document prescribes a standard method applying a fingerprint pattern (sample prep). A measurement method for quantifying fingerprint visibility is then explained through the use of a spectrophotometer. Finally, a cleanability test procedure is outlined via a wiping method and additional spectrophotometer measurements

Purpose

As the demand for high optical performance and usability of touch displays increases, the need for display manufacturers to improve the delivery of information in a way that is not degraded by fingerprints and other display contaminants will continue to grow. Visible fingerprints are left when a person has some form of liquid (or powder in some cases) on their fingertips and transfers it onto another surface. The most common types of liquids associated with visible fingerprints are sebum, blood, ink, grease, and dirt. Easy-to-clean coatings have become an integral part of automotive displays and optical systems. These coatings can be applied to glass display covers and improve the cleanability of such surfaces significantly, thus improving the overall optical quality of displayed information and reducing driver distraction. Anti-fingerprint coatings, in contrast to easy-to-clean coatings, are designed to reduce the overall visibility of fingerprints on such surfaces. The proposed test method provides a way to assess the effectiveness of the anti-fingerprint and easyto-clean coatings. Regardless of the applied coating, the cleaning process should not harm the coating itself or the actual cover glass.

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Discard

Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

19/02/2025

Proposal end date:

09/04/2025

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

ISO/NP 25774 Road vehicles — Fingerprint visibility measurement and evaluation of easy-to-clean and anti-fingerprint coatings on cover lenses for automotive interior displays

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