Modular large lamp box

Abstract

The invention relates to a modular large lamp box. The modular large lamp box is constituted by a plurality of light emitting modules which are assembled in an arrayed mode; the light emitting modulescomprise backlight sources, box bodies and power supplies; the multiple backlight sources are mounted on box body mounting faces on the front sides of the box bodies in an arrayed mode and connectedwith the power supplies in a powered mode; the backlight sources are constituted by array lens modules provided with light source modules, face masks and the light source modules; the array lens modules comprise lens module substrates and forward-protruded substrate connecting rabbets in the peripheries of the lens module substrates, and lens light entering openings are formed backwards; the facemasks are mounted on the front sides of the array lens modules and connected with the connecting rabbets in the front sides of the substrates through face mask connecting rabbets in the rear side parts of the peripheries of the face masks; and the light source modules are mounted on the rear sides of the array lens modules, and thus the light sources are arranged on the rear sides of lenses. The modular large lamp box has the advantages of being uniform in light emitting, simple in structure, convenient to mount and maintain and the like.

Description

technical field [0001] The invention relates to the field of light boxes, in particular to a modular large light box. Background technique [0002] As we all know, light boxes have a wide range of applications, which involve construction, industry, lighting, civil, commercial, medical, advertising, transportation and other special purposes. Among them, the application in the field of advertising communication is the most widely used, mainly including panel light boxes, cloth light boxes, crystal ultra-thin light boxes and plastic ultra-thin light boxes, mirror induction ultra-thin light boxes, magnetic suction ultra-thin light boxes, dynamic light boxes, etc. [0003] For light boxes in the field of advertising communication, there are mainly two structures: one is a light box with a side-entry backlight structure, which is mainly composed of a light guide plate and a light source. The light source is installed on the side of the light guide plate and at the bottom of the li...

AI Technical Summary

Problems solved by technology

[0003] For light boxes in the field of advertising communication, there are mainly two structures: one is a light box with a side-entry backlight structure, which is mainly composed of a light guide plate and a light source. The light source is installed on the side of the light guide plate and at the bottom of the light guide plate There are engraved or printed light guide points. Due to the limitation of light guide distance, the light box with side-type backlight structure is suitable for products with a small light-emitting area, such as small-sized decorative paintings, window displays, flat panel lighting, etc. However, There are light sources on both sides or around the light guide plate, so that there are dark areas caused by the light source body on both sides or around the light guide plate, and shadowless splicing cannot be realized

The other is a light box with a direct backlight structure, which is mainly composed of a panel, a light source and a box body. The panel is installed on the front side of the box body, and the light source is installed on the back side of the box body. Therefore, the thickness of the light box of the direct-type backlight structure is much larger than that of the side-type backlight. Because it has the advantages of high brightness and strong controllability of the light source, the application of the direct-type backlight is extremely wide, such as Advertisement light boxes, signboard light boxes, signboard light boxes and window light boxes, etc. However, the direct-down backlight box is surrounded by opaque box walls, and there will be serious shadows between the boxes after splicing. Unable to achieve shadowless splicing

It can be seen from the above that the current mainstream advertising light boxes are limited to small-format light boxes. Therefore, the existing large-format advertising in the field of outdoor advertising communication is still stagnant in the four mainstream outdoor carriers of inkjet advertising, three-sided advertising, LED display advertising and luminous character advertising.

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