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Actually, everyone knows that LCD panels are the heart of LCD displays, accounting for over 80% of the entire product cost. The quality of LCD panels directly affects the color, brightness, contrast, viewing angle, and other functional parameters and display effects of the monitor. However, what is the internal structure of LCD panels? Today, Shenzhen strip screen manufacturer - Detian, will introduce it to you.

Firstly, let's take a look at the working principle of the monitor. Simply put, the imaging principle of a display is to apply voltage to stimulate liquid crystal molecules to deflect, line, and surface images. The liquid crystal molecules act like gates to block the transmittance of light emitted by the LED backlight source, and then project the light onto different color filters to form images.

LCD panels are usually composed of several parts, including a liquid crystal molecular layer, a filter film, and a backlight. The structure below the liquid crystal molecular layer and between the metal backplate is mainly a reflective plate and a refractive plate, with three layers of filter film.

The function of a reflector is to reflect light back and reduce the loss of light. The function of a refracting plate is to reflect and refract the light inside it, and distribute it evenly throughout the entire screen. The function of a filter film is to remove light of a certain wavelength, and all three layers of filter films have their own functions.

In addition to the light source, the LED backlight source is also equipped with a transparent filter layer and a white reflector. There are many particles on the filter layer, aiming to make the backlight more uniform through refraction and reflection; Reflectors can increase the brightness of LED backlight.

Backlight, combined with reflective panels, refractors, and filter films, allows the light source to be evenly distributed throughout the entire screen. However, currently there are very few LED backlights with strip designs that can evenly distribute light throughout the entire screen, so many high-end or professional displays adopt dot matrix LED backlight designs.