Views: 14 Author: Site Editor Publish Time: 2021-04-30 Origin: Site
Test items of ultra-thin light guide film:
1. Light guide film brightness and uniformity test
Place the light guide plate on the test frame, and then put the keys on, and check the brightness and uniformity of the light transmitted by the keys. Compared with the model, it becomes darker or has uneven light transmission.
2. Life test
Place the light guide plate between the membrane switch and the button, weigh 500±50g, and press repeatedly at a speed of 30 times/min, 500,000 times.
After the test, the sample has no undesirable phenomena such as deformation and damage, and the luminous brightness is not less than 90% of the original
3. Salt spray test
The temperature is 55℃, the salt water concentration is 5%, and the time is 24h. After the test, it will be air-dried naturally.
After the test, the sample has undesirable phenomena such as deformation and discoloration.
4. High temperature and high humidity
Stored at 55±2℃, R.H93%±2% for 96H, after taking it out, it will be restored at room temperature for 2H.
After the test, the sample has undesirable phenomena such as deformation and discoloration.
