Advantages of ultra-thin light guide plate
Sep 13, 2021
With the thinning of LEDs, in order to obtain better light guide efficiency, the thickness of the light guide plate must match the shape and thickness of the side light of the LED. The thickness of the ultra-thin light guide plate is 0.6mm (LED light on one side) and 0.4mm (light light on both sides). The 0.8mmPMMA light guide plate is the preferred solution for the thinning of the light guide plate of the all-in-one backlight.
V-cut and microlens structure make light guide more efficient and uniform: domestic and foreign studies have proved from theory and experiment that under the same thickness, the concave point (microlens) light guide plate has higher efficiency than the light guide plate with etched convex points (>5%) and uniformity (>85%). The company integrates microlens and micro-cone technology, and uses a micro-cylindrical lens (prism) on the side to cross-diffusion of the LED light, eliminating hot spots and dark shadow areas at the entrance of the light guide. The edge light is more uniform, reducing the "hot" area and lead, and reducing the number of LEDs used. Based on the morphology distribution and density optimization of the optical microstructure, the light output brightness is higher.
More energy-saving: For the front light lighting of e-readers (e-books), only 3 LED lights can achieve full-screen high-brightness reading, saving energy. The proprietary front light lighting structure design technology makes it impossible to see any light guide points after the front light source is turned off, which does not affect reading.
Improve the efficiency and uniformity of light guide, reduce the requirement of diffusion film, and make the surface light of flat backlight (flat panel display, keys, keyboard, instrument panel, etc.) softer and thinner.







