Studio LED large screen of the four major features
With the development of LED display technology, LED in the TV studio and television broadcast of the large-scale activities are increasingly being used as an active backdrop, it provides a variety of vivid, dazzling background screen and more interactive features, So that the background picture is also static and static, so that the performance and background integration, the perfect scene and the atmosphere of the program together to achieve the other stage art equipment difficult to achieve the function and effect. However, in order to play the advantages of LED display selection and use of the process to pay attention to the following aspects:
A point spacing to be as small as possible
The dot pitch is the distance between the center points of the adjacent pixels of the LED screen. The smaller the pitch, the more pixels per unit area, the higher the resolution, the closer the shooting distance, and the more expensive the price will be. At present, the dot pitch of the LED screen used in the domestic television studio is 6-8 mm, and the relationship between the resolution and the point spacing of the signal source should be carefully studied, so that the resolution is consistent and the point-to-point display is achieved Good effect.
2. shooting distance to be appropriate
As mentioned earlier in terms of point spacing and fill factor, different spacing, different fill factor LED screen, the appropriate shooting distance is not the same. To the point spacing of 4.25 mm, fill the coefficient of 60% of the led display, for example, was the distance between the characters and the screen in the 4-10 meters more appropriate, so when shooting people can get a better background picture. If the characters from the screen too close, shooting close-range, the background will appear grainy, but also prone to moire interference.
3. To ensure a good use of the environment
LED screen life and stability are closely related with the working temperature. If the actual operating temperature exceeds the scope of use of the product, not only its life will be shortened, the product itself will be seriously damaged. In addition, the threat of dust can not be ignored. Dust will be too much, will make LED screen thermal stability decline or even leakage, serious will lead to burn; dust will absorb moisture, thereby corrosion of electronic circuits, causing some difficult to troubleshoot short circuit problems, so pay attention to keep the studio clean.
LED screen without patchwork, can make the picture more perfect; lower power consumption, less heat, energy saving and environmental protection; its good consistency, to ensure that the screen no difference display; box size is small, easy to form a smooth background screen shape ; Color gamut coverage is higher than other display products; have a better weak reflective characteristics of the advantages, and high reliability, late operation and maintenance costs low.
4. Color temperature adjustment
Studio use LED screen as the background, the color temperature should be consistent with the studio light color temperature, in order to get accurate color reproduction in the shooting. Studio lighting according to program needs, sometimes use 3200K low color temperature lamps, sometimes use 5600K high color temperature lamps, led display will need to adjust to the corresponding color temperature, in order to obtain a satisfactory shooting effect.
Of course, have so many advantages of the LED screen must also be used in order to make it better performance to dripping to do. Therefore, the use of LED screen in the TV program, we have to choose the right LED screen, in-depth understanding of their characteristics, for different studio conditions, program forms and requirements to select technology products as the background, so that these new technologies to maximize its Advantage.