Section light guide structure of light guide plate in back light module

Abstract

The invention relates to a section light guide structure of a light guide plate in a back light module. The section light guide structure is characterized in that the light guide plate with the light conducting property is provided with a first plane plate body and a second plane plate body corresponding to both sides; the first plane of the light guide plate is provided with at least one first channel which continuously extends from one side to the other opposite side; the first plane is separated into a plurality of sections; and a plurality of light sources are distributed in the first channel and can project light into the light guide plate from the first groove. The invention has the advantage the light sources are arranged in the channel of the light guide plate, therefore the projecting length of the light is reduced, the exposure of the light is avoided, and the back light module has small volume and is more suitable for the mounting and use of thin, short and small electronicproducts.

Description

technical field [0001] The invention relates to a backlight module, in particular to a section light guide structure of a light guide plate in the backlight module. Background technique [0002] Generally, the backlight module used for LCD includes a light guide plate, a reflective sheet is arranged on the first side of the light guide plate, and a plurality of optical films composed of a diffusion sheet and a prism sheet are arranged on the opposite second side. The periphery of the light guide plate is surrounded by an outer frame, and the side of the light guide plate is provided with a light source. The light emitted by the light source is projected into the side of the light guide plate, part of the light is reflected by the reflective sheet, and then sequentially emitted through the diffuser sheet and the prism sheet. [0003] The general light guide plate is a continuous plate body, therefore, the light is continuously transmitted in the light guide plate, that is, th...

AI Technical Summary

Problems solved by technology

[0005] The backlight module with segmented light guide in the prior art is characterized in that several light guide plates with small areas are connected together by special technology, and the joints cannot guide light, so that the light guide plates located in each area The light source of a section of the light guide plate can only transmit light in the section of the light guide plate

[0006] The above-mentioned light guide plate with section light guide effect is manufactured by parallel connection, so the manufacturing process is more cumbersome and the manufacturing cost is higher. Therefore, the Taiwan patent No. M3200073 previously approved by the applicant's company in Taiwan, China is Propose solutions to the aforementioned problems

Images