How to judge the quality of the LCD screen?

The LCD screen seems to have only one panel, but in fact it is mainly composed of four major components (filter, polarizer, glass, cold cathode fluorescent lamp), so how to judge the quality of the LCD screen? Optical filter: The reason why the TFT LCD panel can produce color changes is mainly from the color filter. The so-called mobile LCD screen panel is through the change of the voltage of the driving IC, so that the liquid crystal molecules stand in rows to display the screen, and the screen itself The color is black and white, and it can be turned into a color pattern through a filter. Polarizing plate: A polarizing plate can convert natural light into linearly polarized light. Its function is to separate the incident linear light with polarized components, part of which is to let it pass, and the other part is to absorb, reflect, and scatter etc. to make it concealed and reduce the generation of bright/bad pixels. Cold cathode fluorescent lamp: It is characterized by small size, high brightness and long life. Cold cathode fluorescent lamps are made of specially designed and processed glass, which can be used repeatedly after fast lighting, and can withstand up to 30,000 switching operations. Because cold cathode fluorescent lamps use three primary color phosphors, their luminous intensity is increased, light decay is reduced, and the color temperature performance is good, resulting in extremely low heat generation, which effectively protects the life of our LCD screens. How to judge the quality of the LCD screen during use 1. Do not install multiple systems at the same time; after installing multiple systems, the LCD screen will be damaged to a certain extent during the switching process. 2. Keep the voltage and power normal. 3. Do not mess with the LCD buttons at any time. Manufacturer's reasons: Bright/dead pixels are also called bright spots on LCD screens, which are physical damage to the mobile phone LCD screen, mainly due to the slight deformation of the internal reflector of the screen at the bright spot parts due to external pressure or heat. . Technically speaking, bright/dead pixels are non-repairable pixels on the LCD panel, which are produced during the production process. Shenzhen Kimeery Electronics Co., Ltd. is a TFT LCD screen manufacturer, OLED display manufacturer'>OLED display manufacturer, LCD display manufacturer.Kimeery was established in 2008, located in Shenzhen, a coastal city in southern China, with more than 1,000 employees , is a high-tech enterprise specializing in the R&D, production and sales of mobile mobile phone LCD screen display (LCD) and LCD screenmodule (LCM). After ten years of development, the company has gradually established a research and development center, LCD business department, FOG business department, and module assembly business department. The products cover TN-LCD, STN-LCD, COG-LCM, COB-LCM, TFT, flexible display, PM-LCD for Samsung, AM-OLED, Electronic paper, etc. Aiming at the long-term planning of production, R&D, sales, and talents, we have built a solid business structure and maintained a steady growth in sales. TFT LCD screen'>TFT LCD display OLED display manufacturer LCD display

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