Backlight module structure

Abstract

The invention relates to a backlight module structure comprising a light guide plate and a plurality of light-emitting diodes, wherein the light incoming end surface of the light guide plate is provided with a plurality of first microstructures and a plurality of second microstructures, wherein the first microstructures and the second microstructures are respectively arranged both ends of the light incoming end surface and distributed along the light incoming end surface, and the first illuminated surfaces of the first microstructures and the second illuminated surfaces of the second microstructures oppositely tilt in at least one tilt angle so that respective normal lines respectively deflect to an imaginary center of the light guide plate; the light-emitting diodes are provided with light-emitting surfaces which are respectively arranged opposite to the first illuminated surfaces or the second illuminated surfaces, and the light rays of the light-emitting diodes enter the light guide plate through the first illuminated surfaces and the second illuminated surfaces from the light-emitting surfaces.

Description

technical field [0001] The present invention relates to a structure of a backlight module; specifically, the present invention relates to a structure of a side-type LED backlight module capable of improving light incident efficiency. Background technique [0002] In response to the trend of global display backlights becoming thinner and more environmentally friendly and energy-saving, it is an indisputable fact to replace CCFLs with light-emitting diodes (LEDs) as backlights. Light-emitting diodes have the advantage of being mercury-free and environmentally friendly. Compared with cold-cathode tubes, they can make the casing design thinner and improve luminous efficiency. Therefore, the use of LEDs as backlights has almost become the mainstream in notebook computers (NBs). For many leading manufacturers in LED application technology, the proportion of NB products using LED backlights has reached more than 90%. [0003] Such as figure 1 As shown, the known edge-type backlig...

AI Technical Summary

Problems solved by technology

In other words, most of the light from the light emitting diodes 22 located on both sides of the light guide plate 10 cannot be effectively used and wasted, that is, the luminous efficiency cannot be improved.

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