Traversing splicing screen

Abstract

The invention relates to a traversing splicing screen, which comprises a plurality of groups of vertical section bars and a plurality of groups of transverse section bars, the plurality of groups of vertical section bars and the plurality of groups of transverse section bars are combined into a screen mounting frame in a grid shape, the periphery of each screen is fixedly connected with a transverse light blocking plate and a vertical light blocking plate, the screen is assembled with the vertical section bars through the vertical light blocking plate in a vertical direction, the screen is assembled with a transverse supporting plate through the transverse light blocking plate in a horizontal direction, the transverse supporting plate is fixedly connected with the transverse section bars, the transverse light blocking plate moves left and right in a horizontal direction opposite to the transverse supporting plate, and the vertical light blocking plate moves up and down in a vertical direction opposite to the vertical section bars. According to the screen, the left and right movement of the transverse light blocking plate in the horizontal direction and the up and down movement of the vertical light blocking plate in the vertical direction are achieved, so that the whole screen moves along the same direction during the process of expansion caused by heat and contraction caused by cold of the screen, problems of large physical abutted seam caused by temperature and screen damage caused by mutual collision among screens during cold contraction are avoided.

Description

technical field [0001] The invention relates to a pass-through splicing screen, in particular to a pass-through splicing rear projection large screen. Background technique [0002] Conventional screens are mostly composed of Fresnel lenses, black cylindrical mirrors, a set of glass, screen frames, etc. The processing technology is mainly the gluing process. Although conventionally, it can be made into an independent screen structure, but there are long pre-production cycle time, heavy overall weight, complicated process, high cost, etc., plus the Fresnel lens and black cylindrical mirror are placed between two pieces of glass , and then stick it on the screen frame with glue, and the size of the part of the screen frame supporting the glass is very small. When the properties of the glue are slightly poor, and the thermal expansion and contraction are severe, the glass may fall out of the screen frame, causing damage to the screen , and may even cause damage (injury) to pers...

AI Technical Summary

Problems solved by technology

[0005] The present invention designs a cross-splicing screen, which solves the technical problems as follows: (1) the existing screen has a large splicing seam, and there is a large physical gap at the outer surface of the splicing seam; (2) the existing screen is A series of phenomena such as thermal expansion and cold contraction cause the surface glass to open and fall off

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