Concave light guide plate with double dots

Abstract

The invention discloses a concave light guide plate with double dots, which relates to the field of scattered propagation of geometrical optics and particularly relates to the technical field of light guide plates. The concave light guide plate with double dots is characterized in that the light guide plate is composed of an A light guide surface and a B light guide surface which are different; the A surface and the B surface are provided with multiple small spherical concave dots and multiple large spherical concave dots; each small spherical concave dot and each large spherical concave dot are hemispheric; each small spherical concave dot and each large spherical concave dot are exterior separation circles; the diameter of each small spherical concave dot is 0.05 to 5 mm; the distance between the small spherical concave dots is 0.05 to 2 mm; the depth of each small spherical concave dot is 0.05 to 0.9 mm; the diameter of each large spherical concave dot is 0.06 to 5 mm; the depth of each large spherical concave dot is 0.05 to 0.9 mm; the distance between the large spherical concave dots is 0.04 to 2 mm; and the thickness of the light guide plate is 0.5 to 6 mm. the processing steps are fewer, the qualified rate is high, the production cycle is short, a specific size is not needed, execution is easy, the scattered propagation is uniform, light outgoing points can not be seen, the light is softer, and the visual light at any angle has the same brightness.

Description

technical field [0001] The invention relates to the field of dispersion propagation of geometric optics, in particular to the technical field of light guide plates. Background technique [0002] The light guide plate in the current technology is used in various displays, such as LED flat panel lights, flat panel displays and backlight modules of TVs. The light guide plate is generally made of plastic plates or sheets, and the light incident point is set on one side of the light guide plate or Surroundings, the light source is refracted and scattered through concave and convex points to make the light source soft and uniform. Traditionally, it is made on a flat substrate by laser dots or ink silk screen printing. Products of different sizes need to be designed according to different drawings. Strict production requirements, numerous processes, high processing costs, long production cycle, prone to uneven light guide dispersion and loss of brightness in batches. Contents of ...

AI Technical Summary

Problems solved by technology

[0002] The light guide plate in the current technology is used in various displays, such as LED flat panel lights, flat panel displays and backlight modules of TVs. The light guide plate is generally made of plastic plates or sheets, and the light incident point is set on one side of the light guide plate or Surroundings, the light source is refracted and scattered through concave and convex points to make the light source soft and uniform. Traditionally, it is made on a flat substrate by laser dots or ink silk screen printing. Products of different sizes need to be designed according to different drawings. Strict production requirements, numerous processes, high processing costs, long production cycle, easy to cause uneven light guide dispersion and loss of brightness in batches

Images