Front light module and display module

Abstract

The invention provides a front optical module and a display module. The front optical module comprises a plurality of stacked light-transmitting materials and a plurality of light sources. The light-transmitting materials comprise incident surfaces. The light sources are used for providing a plurality of light beams and are configured beside the incident surfaces. Edge parts are arranged on positions, adjacent to the light sources, on at least one of the light-transmitting materials, each edge part comprises a plurality of first sub-edges and second sub-edges, the first sub-edges correspond to the light sources, the first sub-edges and the second sub-edges are arranged into a column in a staggered way, and one of distances from the first sub-edges to the incident surfaces is larger than one of distances from the second sub-edges to the incident surfaces. In addition, the display module is also provided. By using the front optical module provided by the invention, the strength of light at the parts, close to the incident surfaces, of an area light source can be favorable in uniformity.

Description

technical field [0001] The invention relates to an optical module and a display module, in particular to a front light module and a display module. Background technique [0002] Generally speaking, the design of the reflective display (Reflective Display) with the front light module is to arrange the front light module above the display module, and set the light source on the side of the light guide panel (LGP), the light emitted by the light source The light can travel in the light guide plate in the form of total internal reflection, and break the total internal reflection behavior through the microstructure, and then refract towards the display module, converting the light source into a surface light source with uniform optical distribution. The light refracted towards the display module can be reflected by the display module and transmitted to the viewer. [0003] Traditionally, the front light module of a reflective display includes a light source, a light guide plate,...

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, the way to solve the hot spot phenomenon is to make microstructures (such as serration microstructures) on the light incident surface of the light guide plate or to adjust the dot density of the light guide plate. However, due to the reduction of the number of light sources and the reflective display App display size increase, this approach has its limits

In addition, increasing the adjustment range of the dot density of the light guide plate will greatly increase the relative accuracy of the light source, which will limit the assembly of the reflective display.

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