Dustproof self-heat-dissipation liquid crystal display for outdoor advertising

Abstract

The invention discloses a dustproof self-heat-dissipation liquid crystal display for outdoor advertising. The liquid crystal display comprises a base, a fixed plate and a liquid crystal display embedded in the fixed plate; a square box is arranged on each of the two sides of a part, located on the liquid crystal display, of the fixed plate; an air bag is fixedly connected into each square box; thebottom of each air bag is fixedly connected with a moving block; each moving block is connected to the inner wall of the corresponding square box in a sliding manner; an air flow channel is formed ineach moving block and is communicated with the corresponding air bag; each moving block abuts against an electromagnet fixed to the bottom of the corresponding square box, a sliding cavity is formedin the position, located below the liquid crystal display, of the fixed plate, the two sides of the sliding cavity are each electrically connected with a current-conducting plate, and the two current-conducting plates form a parallel plate capacitor. The dustproof self-heat-dissipation liquid crystal display has the advantages that piezoelectric ceramic pieces periodically charge and discharge theparallel plate capacitor under the action of external wind energy and sound energy, so that the moving blocks move upwards to brush the surface of the liquid crystal display when the electromagnets are powered on, and the self-dedusting effect is achieved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal screens, in particular to a dust-proof and self-heating liquid crystal screen for outdoor advertising. Background technique [0002] The liquid crystal screen is based on the liquid crystal material as the basic component, and the liquid crystal material is filled between two parallel plates, and the arrangement of the molecules inside the liquid crystal material is changed by voltage, so as to achieve the purpose of shading and light transmission to display different shades and random arrangement. There are consistent images, and as long as a three-color filter layer is added between two flat plates, color images can be displayed. LCD screens consume very little power, making them favored by engineers for electronic devices that run on batteries. [0003] Outdoor LCD screens are generally used as roadside advertisements, and have the characteristics of working around the clock. On the one...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the LCD screen that works outdoors for a long time is prone to dust adhesion and affects viewing, and proposes a kind of anti-dust self-heating LCD screen for outdoor advertising

Images