Outdoor advertising lamp box

Abstract

The invention relates to the field of an advertising lamp box, and specifically relates to a lamp box for outdoor and indoor advertising using LED to light. For solving the problem that a current inner lighting advertising lamp box has the disadvantages of being worse in the frame display effect, being complicated in mounting, being high in the manufacturing cost and being highly restricted in size. The invention provides an inner lighting advertising lamp box. The inner lighting advertising lamp box includes a box body skeleton, a built-in light source system, a painting canvas for displaying a frame, and a windproof dodging mask which is made of transparent or semi-transparent materials, wherein the built-in light source system is arranged in the box body skeleton, and includes a plurality of lighting points; the distance between two adjacent lighting points in the built-in light source system is W; the painting canvas is tensioned and fixed on the box body skeleton; the windproof dodging mask is formed by sealed connection of a mask side plate and a mask top plate; the windproof dodging mask is mounted in the box body skeleton and is arranged between the built-in light source system and the painting canvas; the mask side plate of the windproof dodging mask is connected with the box body skeleton; and the mask top plate of the windproof dodging mask gets close to and faces toward the painting canvas. Therefore, the inner lighting indoor and outdoor advertising lamp box has good frame displaying effect.

Description

technical field [0001] The invention relates to the field of advertising light boxes, in particular to a light box for outdoor advertising that adopts LED internal lighting. Background technique [0002] At present, common outdoor advertising light boxes are mainly composed of a frame, a light source system arranged in the frame, and an outer cover (canvas) covered on the frame. When such an outdoor advertising light box encounters the airflow generated by natural wind, artificial equipment or buildings, the airflow forms air pressure on the pressure surface of the outer cover, so that the canvas on the pressure surface and the light source system arranged in the frame, especially the light source The distance between the light-emitting points in the system changes, which in turn causes the picture on the canvas on the pressure surface to appear through spots, darkening, rib patterns, light and shadow stripes, etc., which seriously affects the picture display effect of the o...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of poor picture display effect, high production cost and large size limitation of existing outdoor advertising light boxes, the present invention proposes an outdoor advertising light box, which includes a box frame, a built-in light source system, and a display screen. Canvas and a windproof uniform cover made of transparent or translucent materials; the built-in light source system is installed in the frame of the box, the built-in light source system includes several light-emitting points, and the built-in light so

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