Backlight unit of modular lamp box and light-emitting module

Abstract

The invention relates to a backlight unit and a light-emitting module of a modular lamp box. The backlight unit consists of a lens box installed together with a light source module, a panel and the light source module. The lens box comprises a lens box base plate, a lens box wall, a lens on the base plate, a lens box connecting rabbet, a fence on the back side of the base plate, first screw base columns and second screw base columns; the periphery of the panel is provided with a panel connecting rabbet protruding backwards, and the panel is arranged on the front side of the lens box and is connected with the lens box connecting rabbet through the panel connecting rabbet in a direct plugging way; the light source module is mounted on the rear side of the lens box and is fixed through the first screw base columns and screws; the light-emitting module comprises the backlight unit and and also comprises a box body, wherein a plurality of backlight units are mutually spliced and mounted onthe front side mounting surface of the box body according to an array. The backlight unit and the light-emitting module have the advantages of being uniform in light emission, simple in structure, convenient to install, repair and maintain and the like.

Description

technical field [0001] The invention relates to the field of light boxes, in particular to a backlight unit and a light emitting module of a modular light box. Background technique [0002] As we all know, light boxes have a wide range of applications. It involves construction fields (such as: showcases, lighting roofs, lighting walls, signage, emergency lights, etc.), industrial fields (such as: film viewers, light diffusion module panels for instruments and meters) , machine identification, production line process instructions, metering equipment, etc.), lighting fields (such as: flat panel lights, light curtains, light walls, floor lights, etc.), civil fields (such as: photo frames, decorative paintings, dressing tables, etc.), commercial fields (such as: item array cabinets, guide signs, identification signs, etc.), medical fields (such as: X-ray light emitters, vision detectors, incubators, test kits, constant temperature covers, operation cabinets, etc.), advertising c...

AI Technical Summary

Problems solved by technology

However, the cabinet of the direct-lit backlight unit is surrounded by opaque cabinet walls, and serious shadows will appear between the cabinets after splicing. Therefore, shadowless splicing cannot be realized.

As can be seen from the above, the current mainstream advertising light boxes are limited to small format light boxes

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