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Guangzhou Cheng Wen Photoelectric Technology Co., Ltd.
LED display screen widely used in the television studio what matters?
September 08, 2022
With the development of LED display technology, LEDs are increasingly used in TV studios and TV broadcast events. As an event wall, they provide a variety of vivid, dazzling background images and more interactive features. In order to use the advantage of led display screen selection and use process should pay attention to the following aspects:
1. Shooting distance should be appropriate
The appropriate shooting distance is different for LED screens with different dot spacing and different fill factor. Taking a led display screen with a dot pitch of 4.25 mm and a fill factor of 60% as an example, the distance between the person being photographed and the screen is suitable in the range of 4 to 10 meters, so that a more excellent background image can be obtained when photographing a character. If the character is too close to the screen, the background will appear grainy when the close shot is taken, and moire is also likely to occur.
2. The distance between points should be as small as possible
The dot pitch is the distance between the center points of adjacent pixels of the LED screen. The smaller the dot pitch, the more pixels per unit area, the higher the resolution, and the closer the shooting distance, of course, the more expensive it is. At present, the dot spacing of LED screens used in studios of domestic TV stations is mostly 6-8 mm. The relationship between the resolution of signal sources and the spacing between dots must be carefully studied in order to achieve consistent resolution and achieve point-to-point display so as to achieve the most Good results.
3. Color temperature regulation
When the studio uses an LED screen as a background, the color temperature of the studio should be the same as the color temperature of the lighting in the studio in order to obtain accurate color reproduction during shooting. Studio lighting according to program needs, sometimes using 3200K low color temperature lamps, sometimes using 5600K high color temperature lamps, led display need to be adjusted to the corresponding color temperature, in order to obtain satisfactory shooting results.
4 to ensure a good use of the environment
The life and stability of the LED video wall screen are closely related to the operating temperature. If the actual operating temperature exceeds the product's specified range of use, not only its life will be shortened, but the product itself will also be seriously damaged. In addition, the threat of dust can not be ignored. Too much dust will cause the LED panel's thermal stability to drop or even cause leakage. In severe cases, it will lead to burning. Dust will absorb moisture and corrode electronic circuits, causing some short-circuit problems that are not easy to check. Therefore, it is important to keep the studio clean.
In the use of LED screens in TV programs, we must select the appropriate LED screens to understand their characteristics in depth, select technical products as background for different studio conditions, program forms and requirements, and let these new technologies maximize their effectiveness. Advantage.
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