Passive OLED and active OLED

OLED can be divided into passive drive (Passive Matrix; PMOLED) and active drive (Active Matrix; AMOLED) according to the driving mode. The driving mode of OLED is current driving. The passive method has a simpler structure. The driving current determines the gray scale. The resolution and image quality performance of small-size products is not bad, but if you want to develop large-size applications, it may increase power consumption and lifespan. The problem of reduction occurs. The best corresponding is to use the active driving method, because the active current rectification is better than the passive method, and it is not easy to cause leakage. At the same time, when the low temperature poly-si TFT technology is used, the current can generate a higher impedance. The low and small TFT meets the needs of large-size, large-screen OLED displays.

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