Compass array display device

Abstract

The invention provides a compass array display device capable of facilitating production and assembly, displaying on double sides and preventing water and dust witch rich color. The invention adopts the technical scheme that: an electromagnet and a control circuit are arranged in a hollow box formed by connecting a main support plate, a secondary support plate and a rim; the electromagnet and the control circuit are covered by using a filler; positioning fasteners are arranged on the front of the main support plate and the back of the secondary support plate; a compass is fixed in a compass frame; a transparent panel is arranged on the outer lateral surface of the compass frame; multi-color bodies arranged in an array can be wrapped by using an integral transparent shell; a magnet arranged on the main support plate realizes connection of the secondary support plate or a support frame made of steel; and a plurality of compass display unit arrays consisting of 2 to 5 compasses and the electromagnet are arranged on the main support plate, and the surface colors of the multi-color bodies in the compasses comprise cyan, magenta, yellow and white.

Description

technical field [0001] The invention relates to a volumetric array display device. Background technique [0002] The origin of the guide body array display device: the guide ball is a sphere wrapped in a transparent spherical shell, a hard magnet is fixed in the sphere, and there is a transparent liquid that acts as a lubricant between the sphere and the transparent spherical shell. It uses the two poles of the magnetic field of the hard magnet The characteristic of always pointing to the two poles of the earth's magnetic field, marking the azimuths of east, west, north and south on the sphere as a tool to guide the direction. If an electromagnet is artificially used to add an electromagnetic field in a direction different from the direction of the earth's magnetic field on the periphery of the guide ball, the hard magnet inside the guide ball, that is, the sphere will deflect due to the magnetic force, and then set some patterns and colors on the sphere, we It is possible ...

AI Technical Summary

Problems solved by technology

[0005] However, in practical applications, we found that there are still the following defects: 1. The electromagnet and the control circuit do not have waterproof and dustproof facilities, which may easily cause a short circuit; 2. In many places, it is necessary to use a display screen that can be displayed on both sides, such as Advertising light boxes at bus stops, background curtain walls of names and signs in front of enterprises and institutions, road traffic signs, advertising signs, indoor and outdoor partition walls and partition panels, etc., but there is no design for double-sided display at present; 3. The guide body needs to be installed on the support plate one by one, which is not conducive to modular industrial production

; 4. In the design of the backside of the display device where the circuits are all concentrated, it needs to be dismantled as a whole during maintenance, and the process is cumbersome

5. The patterns and colors that can be displayed are relatively monotonous

Images