Mechanism with moire weakening function for assisting shooting of LED display screen

Abstract

The invention discloses a mechanism used for assisting shooting of an LED display screen and having a moire weakening function, the mechanism comprises the LED display screen and two baffles, a transmission rod is movably connected between the two baffles, the outer side of the transmission rod is fixedly sleeved with a roller, the positions, close to the upper end and the lower end, of the outer side of the transmission rod are sleeved with clockwork springs, and the clockwork springs are fixedly connected with the transmission rod. The front side of the LED display screen can be covered and auxiliary shooting of the content of the LED display screen can be achieved through mutual cooperation of the acrylic soft plate, the roller, the spring, the L-shaped clamping block and other components, and the LED display screen is convenient to use. According to the auxiliary device, moire patterns on the LED display screen are weakened or eliminated, meanwhile, due to the design of the acrylic soft board, the auxiliary device is convenient to store and carry, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of LED display screens, in particular to a mechanism for assisting shooting of LED display screens with the function of weakening moiré patterns. Background technique [0002] In recent years, LED display screens have begun to be used in TV variety show studios, and have gradually become the mainstream display equipment on the stage. However, in the course of long-term use, it will be found that when the camera lens is aimed at the LED display, occasionally inexplicable water-like stripes and strange colors will appear, which is often called the moiré phenomenon. [0003] Moiré is a manifestation of the beating principle. If the spatial frequency of the CCD pixel of the photosensitive element is close to the spatial frequency of the stripes in the image, moiré will occur. In order to eliminate the impact of moiré on shooting, people increase the size of the LED The space frequency of the screen luminous dot...

AI Technical Summary

Problems solved by technology

However, in the course of long-term use, it will be found that when the camera lens is aimed at the LED display, occasionally inexplicable water wave-like stripes and strange colors will appear, which is often called the moiré phenomenon

[0003] Moiré is a manifestation of the beating principle. If the spatial frequency of the CCD pixel of the photosensitive element is close to the spatial frequency of the stripes in the image, moiré will occur. In order to eliminate the impact of moiré on shooting, people increase the size of the LED The space frequency of the screen luminous dot matrix can be solved by using a high-end LED large screen with high display accuracy and small dot matrix distance to avoid the problem that the resolution of the photosensitive element of the camera is similar to the space frequency of the dot matrix of the large screen. The disadvantage of this solution is that the cost of the large screen is greatly increased

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