Backlight Module Composition And Principle

Jan 06, 2022

The Backlight Module (BLM) is a key part of the Thin Film Transistor Display (TFT-LCD). Since TFT-LCD is a non-self-luminous display, the backlight module must provide a uniform, high-brightness light source to make the TFT-LCD achieve Display the effect of the image.


(1) Components of the backlight module

The backlight module is composed of light source: LED, reflector, light guide plate, diffuser, Prism sheet, plastic frame, back plate and other components. Become.


(2) The light-emitting principle of the backlight module

The light-emitting principle of the backlight module is that the light-emitting diode (LED) provides the incident light source into the light guide plate, uses the dots on the light guide plate to destroy the total reflection, so that the light source is emitted from the surface, and optical films are added according to different needs to achieve Optical requirements.

Backlight module structure


(3) Diverse product solutions

Our R&D team has created a variety of backlight module products to meet customer needs, including notch (Notch) design, narrow border (Slim Border) design, curved design, circular design, and even special-shaped ( Free Form) design and so on, all have the ability of proofing and production.


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