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What Are The Test Items For The Light Guide Film

Views:28     Author:Site Editor     Publish Time: 2020-10-29      Origin:Site

light guide film manufacturer


Dongchen is China's leading light guide film manufacturer, with world-leading technology, and has reached long-term cooperation with world-renowned companies. The quality of light guide film products is also very strict, so what test items will be carried out when producing light guide film?


Test items of light guide film:

1. Test the brightness and uniformity of the light guide film Put the light guide plate on the test frame, and then put the buttons to check the brightness and uniformity of the light transmission of the buttons. Compared with the model, the darkening or uneven light transmission.

2. Life test: Put the light guide plate between the membrane switch and the button, weigh 500±50g, 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 temperature is 55℃, salt water concentration is 5%, time is 24h, and air-dried naturally after test. After the test, the sample has undesirable phenomena such as deformation and discoloration.

4. Store at high temperature and high humidity for 96 hours at 55±2℃, R.H 93%±2%, and restore 2H at room temperature after taking it out. After the test, the sample has undesirable phenomena such as deformation and discoloration.


Good product quality is the basic requirement to gain the trust of customers. Dongchen also has good after-sales service and technical solutions to provide better service to customers. If you have a need for light guide film, please contact us.


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