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In this article, we will discuss how to test and measure the performance of the IR Touch Screen in an outdoor environment with some consideration.

Conditions to be considered when testing.

First, place the Touch Module to be tested where various interferences are caused by Sun Light such as direct Sun Light, the reflected Sun Light, and the refracted Sun Light, and angles with the face of the Touch Module relative to the Sun Light are gradually changed horizontally or vertically and in order to measure the exact Sun Light interference, direct light from Sun Light, reflection or refraction in the surrounding environment must be considered.

Finally, you can test the combined Glass and Touch Module together. 

Things to consider during testing

The Touch Durability Test for interference from sunlight must simultaneously measure all the light generated interference from the IR sensor surface and consider the Multi-Touch function in such an interference environment.

Procedures for testing (Touch Durability in interference caused by Sun Light)

Unfortunately, to date, there is no standard to demonstrate and measure performance for Outdoor Touch products and we have established guidelines for the testing methods and verification procedures based on our existing know-how. However, methods and processes based on common sense will be tested under complex conditions.