Micro-structure light guide plate and display module thereof

Abstract

The invention discloses a micro-structure light guide plate and a display module thereof. The micro-structure light guide plate comprises a light guide plate body (100), the light guide plate body (100) comprises a light-inlet surface (101), a light-outlet surface (102) and a backside (103), the backside (103) is provided with a plurality of groove micro-structures (104), and a resin layer (105) is deposited on the backside (103). According to the micro-structure light guide plate and the display module thereof, the strength of the light guide plate can be improved, the image quality is uniformized, and the realization of light weight and thinning of the display module is facilitated.

Description

technical field [0001] The invention relates to the technical field of light guide plates, in particular to a microstructure light guide plate and a display module thereof. Background technique [0002] Existing light guide plates generally use optical-grade acrylic materials, which can be prepared by printing, injection, hot pressing, inkjet, etc. The structure of the light guide plate is usually a cuboid, and the light incident surface is perpendicular to the light exit surface, such as figure 1 . figure 2 , 3 1-1 is the light-incoming surface of the light guide plate, 1-2 is the light-emitting surface of the light guide plate, 1-3 is the back side of the light guide plate, 1-4 is the raised microstructure, and 1-5 is the groove microstructure. in figure 2 It is a raised microstructure formed by printing, spray printing, embossing, etc., image 3 For the grooved microstructure formed by hot pressing, laser. The size of the light output can be adjusted according to ...

AI Technical Summary

Problems solved by technology

[0004] The structure of the liquid crystal module using the existing light guide plate structure is complicated, the thickness of the whole machine is relatively thick, and the cost is high. Moreover, the backplane is generally made of metal or plastic parts, and its color is single, so it is difficult to produce different appearance effects.

In order to achieve the ultra-thin design of the display module, the thickness of the light guide plate is usually reduced. After the thickness of the light guide plate is reduced, the thickness of the matching LED is also reduced. However, the brightness of the existing ultra-thin LED cannot meet the high brightness of large-size TVs. need

At the same time, after PMMA becomes thinner, it is easy to deform, resulting in uneven light input and local light leakage.

In recent years, Corning has developed ultra-transparent glass, which is comparable to the transmittance and transparency of optical acrylic. Some use traditional techniques to screen-print dots on the back of the glass and use them on monitors and TVs. However, for smaller sizes, the size of the printed dots is low. After 0.2mm, the process is not suitable for mass production, and cannot be applied to small-sized and ultra-thin light guide plates

At present, laser technology is used to prepare grooves. There are micro cracks in the grooves, which cause glass damage. At the same time, the grooves are not uniform, and the optical scattering points formed by the grooves are not soft.

Images