What is a backlight module?
Due to the fact that the LCD panel itself does not emit light, a light source is needed to make it appear. The device that provides the light source is called a backlight module, which generally consists of a backlight source, multi-layer backlight materials, and a support frame.

1. The structural materials include: back panel (bottom frame), middle frame, front frame, and rear shell;
2. Optical materials include: light sources (CCFL, LED), light guide plates (which convert line or point light sources into surface light sources. Generally, TV machines use diffusion plates), reflection plates (which reflect the light emitted from the light guide plate back to the light guide plate, increasing the utilization of light), and diffusion plates (including lower and upper diffusion plates, mainly to homogenize the light emitted from the light guide plate), Light enhancing film (using micro prism structure to concentrate scattered light towards the front, improving overall brightness and uniformity), DBEF/composite film (improving brightness).
① Lamp strip packaging: 4014, 7020, 2835, 3030, miniLED, etc.; ② Use 3M DBEF/composite film to improve brightness.
3. Constant current board: drives the backlight strip, and different power consumption constant current boards can be selected based on the backlight power. Types of constant current plates: IC21 (within 20W), IC22 (within 40W), IC42 (within 80W), IC62 (within 160W).
The function of backlight module
The backlight quality determines important parameters such as brightness, uniformity of output light, and color scale of LCD screens, which largely determine the luminous effect of LCD screens. Light loss: According to research, only about 60% of the light emitted from traditional backlight sources, after passing through optical thin films such as reflective and diffusion films, will enter the polarizing film through the backlight module. Finally, only 4% of the light will be left after passing through the LCD display screen. Therefore, backlight design and material selection are important.
Ruxin Gaoliang is a national high-tech enterprise that integrates research and development, design, production, and sales. The main products include four categories: small and medium-sized LCD screens, high brightness LCD screens, strip LCD screens, and transparent LCD screens. The application industries include outdoor advertising machines, rail transit, handheld terminals, smart homes, medical equipment, instrumentation, digital projectors, supermarket displays, and other industries.
The company established a branch in Hubei in 2018, with a factory area of 20000 square meters. It has a professional technical research and development team and an excellent management team, which can independently design and develop high brightness backlight structures and optical structure combinations. The company has first-class domestic production equipment such as cutting machines, high brightness production lines, COG bonding machines, FOG bonding machines, etc. The monthly production capacity is small size 1KK, high brightness 30K, and bar screen 5k.