Fixing structure of light guide plate

Abstract

The invention provides a fixing structure of a light guide plate. The fixing structure comprises a back plate, an outer frame and a plurality of buffer parts, wherein the back plate is used for bearing the light guide plate; the outer frame is arranged around the periphery of the back plate and comprises a lower edge frame, an outer wall and a plurality of limiting parts; the lower edge frame is connected with the back plate; the outer wall is approximately vertical to the lower edge frame; the lower end of the outer wall is connected with the lower edge frame; the plurality of limiting parts are connected with the upper end of the outer wall; each limiting part comprises an upper edge and a limiting wall; the upper edge is connected to the upper end of the outer wall, and extends inwards in parallel to the lower edge frame approximately; the limiting wall is bent from the tail end of the upper edge to the lower edge frame and is approximately parallel to the outer wall; each buffering part is positioned on the outer side surface of the limiting wall; the limiting wall defines a space for accommodating the light guide plate above the back plate; and the side edge of the light guide plate is supported against the buffering part. Due to the adoption of the fixing structure of the light guide plate, a space can be provided for the light guide plate by using the buffering performance of the buffering parts to make the fixing structure adapt to the expansion of the light guide plate due to moisture absorption, and thus, the light guide plate can be fixed, and the impact / vibrating performance of the light guide plate can be maintained.

Description

technical field [0001] The invention relates to a fixing structure of a light guide plate, in particular to a fixing structure of a light guide plate used in a backlight module. Background technique [0002] With the increasing development of the industry, the display technology is changing with each passing day. In terms of mass production scale, liquid crystal display (LCD) is firmly in the mainstream of flat panel display technology. In recent years, most mobile phones, notebook computers, desktop computers, digital cameras and projectors use liquid crystal displays as display screens. However, since the liquid crystal itself does not emit light, it is necessary to provide a backlight module (Back light module) under the liquid crystal display to supply sufficient brightness and evenly distributed light source so that it can display images normally. Among them, the light guide plate, as an important structure of the backlight module, is an important component that affect...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defect in the prior art that the light guide plate has hygroscopic expansion characteristics, it will expand after absorbing moisture, which will be deformed due to extrusion, thereby greatly affecting the quality of the image light. The present invention provides a light guide plate The fixed structure can provide an expansion space to prevent the light guide plate from being squeezed and deformed while fixing the light guide plate, and maintain shock / vibration performance

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