Testing
Tools and Methods
After unpacking the touch sensor, it is important to check it for any potential failure. We recommend doing this before commencing the lamination process.
All sensors are tested several times before leaving our facilities, making it virtually impossible to receive it damaged.
Nonetheless, this is a one-time installation product, which makes the tests before each next step of utmost importance.
This procedure is also useful for testing the surface you are going to laminate the foil on - to identify any problems with potentially conductive materials.
Tools needed to execute the test:
- Touch Controller board;
- USB Cable;
- Laptop/PC with Displax Connect installed;
Follow these steps to test the Touch Sensor properly:
- Remove the air from the protection bag before removing the Touch Controller
- Connect the Controller to the Touch Sensor (ensure it’s properly connected)
- Connect the Controller to the PC/laptop via USB cable
- Place the glass on top of the Touch Sensor (for testing the surface you are going to laminate the sensor on)
- Apply slight pressure to secure the glass
- Launch Displax Connect
- Restart the Touch Controller
- Touch the glass and check the touch performance
Note: For testing/checking the sensor only, you may touch it directly to carry out the test.
Video Tutorial
What is considered good touch performance?
- Having continuous drag without losing touch detection, with one finger held 90º relative to the display, making minimal pressure. Test across the entire display area, center and borders.
- Having continuous drag without losing touch detection, with 2 or more fingers held 90º relative to the display, making minimal pressure. Test across the entire display area, center and borders.
- With 4 fingers per hand, drag each hand from one side of the display to the opposite side (left-hand drag from left to right; right-hand drag from right to left), without losing touch detection.
This article is a reference example for a 42-inch display. For larger sizes, an adequate distance between two or more fingers is needed for good touch detection. Displays with bigger dimensions require more distance between fingers.