Dance beauty has always been the top priority in the creation of large-scale evening parties. The style, color and presentation of dance beauty not only represent the artistic taste of a party, but also directly present the theme of the party, and also play a certain role in the performance of the party. The decisive role. Therefore, almost all large-scale parties will make the evening dance design the first important work after the project is established. There are many types of large-scale evening programs. Almost all director groups hope that the evening dance beauty can be flexible and changeable to meet the special needs of the dance beauty and program content synchronization during the party. The emergence and popularity of LED technology has made many large-scale party producers see the best opportunity to realize their dreams. Especially in recent years, LED technology has been upgraded, enabling large-scale parties to realize large-scale LED video at a lower cost. Wall construction work, at the same time, can also use a variety of flexible LED materials to create a variety of curved surface LED dance beauty film. As a result, viewers have seen more widespread use of LEDs in large-scale evening shows, and the most typical example is the annual CCTV Spring Festival Gala. The use of LED video wall, from the earliest middle of a large area main screen plus two side screens, also gradually transition to the panoramic video wall and comprehensive three-dimensional video wall comprehensive utilization, in the past only CCTV has the strength to build The LED stage has also gradually appeared in many provincial and municipal evenings. However, convenient technical means does not really mean high efficiency. The comprehensive utilization of high-tech means on the stage does not represent a real improvement in the level of stage performance. Throughout the production of large-scale domestic evening parties, the author combined with his own experience in the large-scale party, summed up the following misunderstandings of the LED video wall of the large-scale party: 1. The abuse of the real-life scene leads to a huge conflict between the beauty of the video and the content of the program. The continuous upgrading of LED screen manufacturing technology has made many production teams and organizers love the characteristics of the screen “HDâ€. In the process of creation, it is easy to enter the misunderstanding of “because of small lossâ€. In order to reflect the characteristics of the high-definition screen as much as possible, the producer is often keen to play a special live video on the live video wall as a background dance. For example, in the song and dance program, a large number of urban landscape pictures and human life pictures are played, and it is intended to achieve a combination of program art interpretation and screen reality presentation, but the result is counterproductive. The stage show performance pursues a high sense of form, with color, light, and formation as the longest, and most of the live-action videos are too rich in color, which will be used as the main background of the stage, but will be interpreted in the form of the stage program. It brings great damage, and the audience has a sense of clutter that “can’t see†and “do not know where to lookâ€. The original design used to enhance the effect of the program has a huge impact on the audience’s viewing. The basic principle of the beauty of the design and production of the program. 2, the abuse of LED screen destroys the lighting effect of the stage performance area The gradual reduction of the production cost of LED screens has led many creators to blindly pursue the concept of “panoramic video beautyâ€. In the beauty design, LED screens are used in large quantities, and even more, all the dance scenes are replaced by LEDs. However, many creators have neglected the reality that LED screens are easy to bring great light pollution to the stage. When the stage is finished designing and performing overall lighting synthesis, it has been regretted. In the overall design of the program, the lighting plays a huge role, it can make the whole stage a magical sense of space and layering, making the overall visual presentation more interesting and interesting. In the traditional stage dance beauty design, the only light source is the lighting system. The director, the lighting engineer and the dancers can work together to create a unique stage space. However, when the LEDs are used in a large amount, the situation has undergone tremendous changes. In addition to the lighting system, the lighting source in the stage space has a variety of self-illuminating LED screens. In the process of playing various video materials, the LED screens are The changes in the picture constantly change the intensity and color of the light. This feature makes the lighting control on the stage more complicated and the combination of light is more challenging. Pressure Type Liquid Level Sensor It is suitable for liquid level measurement of various media in petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, environmental protection and other systems and industries. The exquisite structure, simple adjustment and flexible installation provide convenience for users to use easily. 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