The longer the MTBF is, the higher the reliability is, and the stronger the ability to maintain correct operation is. The unit is "hour". It usually refers to the average working time between two adjacent failures, also known as the average failure interval. It only applies to repairable products (non repairable products are defined by MTTF). When the life of a product follows an exponential distribution, the reciprocal of the failure rate represents the time interval between two failures. λ=1/MTBF
Steady state damp heat test
Steady state damp heat test is to provide a stable temperature and humidity environment for the display device, and observe whether the appearance, electrical and optical properties of the display device are normal within the specified time. This test mainly considers whether the components of the device can withstand stress corrosion from humidity.
Low pressure test
Low pressure test is to provide a low pressure environment with a specified pressure value for the display device, to simulate whether the display device will produce irreversible appearance and performance changes during high-altitude transportation and use, and to investigate the impact of low pressure environment on the optical and electrical performance of the display screen.
