Device for eliminating joint seam of rear projector splicing wall

Abstract

The invention relates to the field of a large-screen display device, in particular to a device for eliminating a joint seam of a rear projector splicing wall. The rear projector splicing wall comprises a plurality of splicing wall units, wherein a joint seam is respectively formed between every two adjacent splicing wall units, the joint seam is provided with a light emitting diode (LED) lamp and an LED lamp display control device, and the LED lamp is connected with the LED lamp display control device. The joint seam of the rear projector splicing wall is provided with the LED lamp, so that the light transmitted from the LED lamp passes through the joint seam to be displayed, the problem of the black edge of the joint seam of the rear projector splicing wall can be effectively solved, the all-day display effect of the splicing wall can be greatly improved, and the display effect is remarkable; and moreover, the LED lamp display control device reads pixels on the edges of the splicing wall units, and the pixels on the edges read are displayed by controlling the LED lamp, so that the image display continuity is good, and the phenomenon that the image is split suddenly can be avoided.

Description

technical field [0001] The invention relates to the field of large-screen display devices, in particular to a device for eliminating seams in rear projection splicing walls. Background technique [0002] With the improvement of people's demand for display information transmission, the application fields of large-screen display have spread to various fields such as public display, transportation dispatching and commanding, weather monitoring, power and telecommunications monitoring, fire monitoring and commanding, and military commanding. [0003] The existing rear-projection video wall large-screen display technology mainly combines and displays multiple video wall units by stacking. The advantage of the splicing screen is that it can improve the resolution of the system display and increase the display area. It can not only display a complete picture on the entire display screen, but also open windows at any position on the display screen. However, the connection between ea...

AI Technical Summary

Problems solved by technology

The advantage of the splicing screen is that it can improve the resolution of the system display and increase the display area. It can not only display a complete picture on the entire display screen, but also open windows at any position on the display screen. However, the connection between each display unit There is a seam at the place, and the width of the seam is generally less than 1mm. When the display is actually started, it is visually reflected as a black border, and the displayed image has a feeling of being split, which destroys the overall display effect of the image.

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