Resistivity:
A. Test method: Use a high resistance meter to test the resistance value of the LCD module to be tested.
B. Judgment standard: The test result is within the scope of product requirements (the factory standard ≥ 8X107).
Photoelectric performance:
A. Test method: try to irrigate the product and test its photoelectric performance.
B. Judgment criteria: The Von and Voff values of the test sample are consistent with the supplier's parameters, and the viewing angle, contrast, and background color meet the requirements of the production product.
Clear highlights:
A. Test method: Heat the liquid crystal to be tested and measure the temperature when it reaches the clearing point. B. Judgment criteria: The temperature of the measurement result is consistent with the clearing point temperature provided by the supplier.
UV resistance:
A. Test method: Put the liquid crystal to be tested as a product, lay it flat under the sealing UV machine, and irradiate it twice according to the UV intensity and time specified by the sealing process to test the photoelectric performance changes before and after the irradiation.
B. Judgment criteria: After UV irradiation, the Voff value rises within 0.1V (low voltage liquid crystal is within 0.15V), the current value changes within 2 times, and the contrast is not significantly reduced as qualified.
reliability:
A. Test method: Test the liquid crystal to be tested as a product and test its reliability performance.
B. Judgment criteria: The photoelectric performance changes after the reliability test are within the range of product requirements.
