Light guide plate, manufacturing method thereof, backlight source, display device, and impact device

Abstract

Embodiments of the present application provide a light guide plate, a backlight source, a display device, and a collision point device and method for manufacturing a light guide plate. The light guide plate includes: the bottom surface of the light guide plate includes a first area located at the curved surface structure, and a second area outside the first area; the first area, and the transition area adjacent to the edge of the first area in the second area There are a plurality of first dots, and the outer surface of the first dots has a preset surface roughness, which is used to diffusely reflect part of the incident light to the light-emitting surface corresponding to the first area and emit it; other areas in the second area A plurality of second outlets are provided. In the embodiment of the present application, rough first dots are added to the curved surface structure and its edge on the bottom surface of the light guide plate, and the incident light corresponding to the non-curved surface structure is transmitted to the curved surface structure area, and other areas emit light in the normal direction through the second dots in a total reflection manner. , under the premise of ensuring the brightness of the backlight source, the brightness of the curved surface structure is improved, thereby solving the problem of super dark corners.

Description

technical field [0001] The present application relates to the technical field of liquid crystal display, and in particular, the present application relates to a light guide plate, a backlight source, a display device, an impact point device and a method for making a light guide plate. Background technique [0002] Ultra-high-brightness backlight refers to a backlight whose brightness is 1.6-1.8 times higher than that of conventional backlights, and its approximate brightness is 16000-24000cd / m 2 (candela per square meter), it is mainly composed of reflectors, light strips, light guide plates, reverse prisms and other parts. Among them, the bottom surface of the light guide plate is arranged with many special-shaped dots at specific angles. The light passes through the special-angle dots on the bottom surface of the light guide plate and the inverse prism of the prism structure at a specific angle, and all the light perpendicular to the prism direction is gathered into a simi...

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the existing methods, the present application proposes a light guide plate, a backlight source, a display device, and a collision point device and method for making a light guide plate, so as to solve the problem of vignetting in the backlight structure with a curved surface structure. technical issues

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