Everyone in life can be said to be inseparable from the display products, especially the display, whether it is office or entertainment will have its intervention. So how does the display work, what is its structure, and how it works. Today we will reveal the secrets for everyone. First of all, it is still necessary to understand the working principle of the display, so that everyone will be able to grasp the process of disassembly. The imaging principle of liquid crystal can be simply understood as that by applying a voltage to stimulate the deflection of liquid crystal molecules to generate images of dots, lines and faces, the liquid crystal molecules block the passage rate of light emitted by the LED backlights as a gate, thereby projecting the light in different colors. An image is formed in the color filter.
The internal structure of the liquid crystal panel of the liquid crystal display will also show the appearance of the LED backlight again. The liquid crystal panel usually consists of a plurality of liquid crystal molecular layers, a filter film, and a backlight, and we will separate the three.
The above picture shows the structure between the liquid crystal molecular layer and the metal back plate in the liquid crystal panel. They are a reflector, a refracting plate, and a three-layer filter. The function of the reflector is to reflect the light back and reduce the loss of light. The function of the refracting plate is to reflect and refract light inside it, evenly distributed throughout the screen. The function of the filter film is to remove light of a certain wavelength, and the three-layer filter film has its own function.
In addition to lighting, LED backlights are equipped with a transparent filter layer and a white reflector. Many of the particles on the filter layer are designed to make the backlight more uniform by refraction and reflection, while the reflector can increase the brightness of the LED backlight. The LED backlight is matched with the reflector, the refracting plate and the filter film, and the light source can be evenly distributed throughout the screen. However, the light of the LED backlight of the strip design is very evenly distributed throughout the screen, so many High-end displays or professional-grade displays use a dot matrix LED backlight design.
The display will be made of a large amount of metal. As can be clearly seen from the above figure, this display uses a single piece of steel plate, which can not protect the internal components of the fuselage, but also can effectively resist the interference of external signals on the display.
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