PMOLED and AMOLED are two different organic light emitting diode (OLED) display technologies with several key differences between them:

 

1. Working principle: PMOLED is based on dot matrix technology, that is, each pixel is composed of a separate diode, which requires external circuits to control. AMOLED is based on global technology, that is, the light emission of the entire color sub-pixel is controlled by a single active film, so it is easy to manufacture and more energy-efficient.

2. Brightness and contrast: In terms of brightness and contrast, AMOLED is better than PMOLED. That's because AMOLEDs have smaller light-emitting cells that allow for better control over brightness and color, while PMOLEDs use larger pixels, which means there can be issues with brightness and contrast.

3. Color saturation: PMOLED has higher color saturation than AMOLED. This is because PMOLED technology can directly adjust the concentration and amount of luminescent materials to control color saturation during the manufacturing process. AMOLED, on the other hand, uses an opaque device to control color, which makes it difficult to fully control color saturation.

4. Energy consumption: Under the same resolution, the energy consumption of PMOLED is lower than that of AMOLED. This is because each independent point requires external circuit control, while AMOLED controls the rendering of the entire pixel through a single activation film, so AMOLED needs Consume more power to control the entire rendering process.

5. Manufacturing cost: The manufacturing cost of AMOLED is higher because it requires more complex controllers, drivers and screen structures. The PMOLED is relatively simple and easy to manufacture, so the cost is lower.

 

In general, AMOLED is more mature than PMOLED and better able to meet the requirements of high-end displays, but it is more expensive to manufacture. Although PMOLED can have higher color saturation, it is relatively insufficient in brightness and contrast.