Backlight modules

Generally speaking, Backlight modules can be divided into Front light and Backlight, while Backlight modules can be classified according to the orientation of the lamp according to their size.

1. Edge-lit

Light source (Edge lighting) on the side of the single light source, adopt injection molding of light guide plate plan without printing type, often used in medium and small scale under 30 inches of backlight modules, its side of the incident light source planning, the characteristics of light weight, thin, narrow frame, low-power characteristics, also for phones, tablets, laptops illuminant, also has a large scale selection of edge-lit TV backlight module.

2. Straight down type

For the super-scale backlight modules, the side-light structure is no longer able to take advantage in terms of components, power consumption and brightness, so the straight-down structure without light guide plate and with the light source placed directly below has been developed. Light by spontaneity light (such as lamp, LED, etc.) after lending by reflection plate, positive after the diffusion plate evenly divided up, due to settle the space greatens, tubes can be applied in accordance with the TFT panel size, but also increased with the thickness of the module, weight, power consumption, the advantages of micromixer mixing effect degrees, good light Angle, light use efficiency is high, the structure should be, etc., thus suitable for portability and space request less picky LCD monitor and LCD TV, its high consumption power (using cold cathode tube), homogeneity Clinton and form LCD fever questions still need to request improvement.

3. The hollow type

With increase of the scale of the impression the request, the LCD is also in a more large scale direction, this type of super large LCD is used as a monitor and wall hung TV, not only request large screen, high brightness, and lightweight, also requests on electric appliance under high power, low thermal effect of the hollow type structure of backlight modules, using hot cathode lamp as light source. This structure with air as the preface of light transmission, light down was threatening the direction adjustment and reflection prism sheet and reflection, after a bit upward through the guide plate and emergent in appearance, another some because of total reflection into the hollow cavity again until after fold reflection effect through the emergence of light guide plate, and the light up or directly into the emergence of light guide plate, or emergent again after the series of refraction and reflection effects: the shape of the guide plate for wedge type structure, aims at the effect of homogenization.