Development of LED Display Screen Industry.p2 indoor LED module

　　Driven by mobile communication technology and internet technology, the world has entered the information age, with the huge amount of daily information mainly transmitted to humans through the display screens of products such as mobile phones, computers, and televisions. As an important interface for human-computer interaction, display technology plays an increasingly important role in the process of information transmission. The display mainly includes two types: cathode ray tube display (CRT) and flat panel display (FPD). Compared with cathode ray tube displays, flat panel displays have the advantages of light weight, thin thickness, low power consumption, no radiation, and no flicker, and have become the mainstream of the industry market.

　　According to different display principles, flat panel displays can be divided into liquid crystal displays (LCD), plasma displays (PDP), organic light-emitting displays (OLED), electroluminescent displays (FED) and Electroluminescent display (ELD). The above flat panel displays have different characteristics depending on the technology used. Among them, LCD and OLED have thin thickness, low energy consumption, and high resolution, making them the main flat panel display products used in small and medium-sized (interface between 1-10.4 inches) displays such as mobile phones and tablets. Their performance characteristics, manufacturing processes, and application in the field of mobile phones and tablets are as follows

　　LCD belongs to passive light emitting technology, and the panel itself does not have luminous properties. It must use a backlight to achieve the display effect; OLED belongs to active luminescence technology and does not require a backlight. In addition, OLED has many advantages such as thin thickness, low energy consumption, unrestricted viewing angle, fast response speed, beautiful colors, and easy implementation of flexible display and 3D display. It is known by the industry as the next generation display technology after LCD and PDP.

　　The manufacturing technology of LCD is very mature and is the mainstream product in the flat panel display market. Among various LCD products, Thin Film Field Effect Crystal Liquid Crystal Display (TFT-LCD) has become the mainstream of LCD flat panel displays due to its excellent image quality, high contrast, fast response speed, and mature manufacturing technology. It is widely used in mobile phones and tablet computer products.

　　The manufacturing technology of OLED is not yet mature and is still in the stage of continuous development and improvement. Currently, it can be mainly achieved through two methods: PMOLED (Passive Matrix OLED) and AMOLED (Active Matrix OLED).

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