A splicing display system

Abstract

The present application discloses a splicing display system, which includes: a plurality of rear projection units spliced ​​with each other, and there is a splicing seam between two adjacent rear projection units; each rear projection unit includes a projector and a screen assembly, and the screen assembly includes a Neil lens and rear projection screen, two adjacent Fresnel lenses are spliced ​​with each other; the range of light projected by the projector exceeds the range of the image displayed on the rear projection screen, and the excess light is projected to the side of the screen assembly; There are cut corners on the sides of the spliced ​​Neel lenses; it also includes: an adaptive adjustment device, which is used to detect changes in the surrounding environment temperature, and automatically adjust the size of the projected screen of the projector according to the preset program. In this application, the range of light projected by the projector is expanded compared with the existing technology. Part of the light can enter the splicing seam through the side of the screen assembly, and then shoot out from the front of the rear projection screen, completely eliminating the black line of splicing, and changes in temperature It can maintain the best effect of eliminating black lines.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a splicing display system. Background technique [0002] The rear projection splicing wall is a professional display application. It adopts a modular display unit structure, which can easily and conveniently splice multiple image units together to achieve ultra-large screen and ultra-high-resolution image display. At present, although the image stitching of the existing unitized mosaic wall has been made very small, less than one pixel of the image, and there is almost no image loss, there are still obvious stitching seams between adjacent units, and the display screen is visually There are obvious black line divisions on the screen, which affects the integrity of the image, and the panoramic integrated display effect of seamless stitching technology cannot be achieved. [0003] like figure 1 As shown, a common splicing display system is composed of a plurality of rear project...

AI Technical Summary

Problems solved by technology

Since there is no light to reach the splicing gap 12, a black line is formed at the splicing gap 12, resulting in the image segmentation phenomenon; When the temperature is affected, the size of the material changes regularly, that is to say, when the temperature changes, the splicing seam 12 will also change accordingly, resulting in poor image display effect

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