Small pixel led display used for TV broadcast studio
Small pixel led display used for TV broadcast studio
With the development of Small pixel led display technology, Small pitch led display screens are increasingly used in large-scale events in TV studios and TV broadcasts. As an active backdrop, it provides a variety of vivid, dazzling background images and more interaction. The function makes the background picture move and quiet, so that the performance and the background are integrated, which perfectly integrates the atmosphere of the scene and the program, and realizes the functions and effects that are difficult to realize in other stage art equipment. However, in order to take advantage of the Narrow pixel led display, the following aspects should be paid attention to during the selection and use.
First, the shooting distance should be appropriate
The distance between the image and the dot pitch and fill factor of the LED display are different. The LED display with different dot pitch and different fill factor is suitable for different shooting distances. For example, an LED display with a dot pitch of 4.25 mm and a fill factor of 60% is suitable. The distance between the person being photographed and the screen is 4-10 meters so that a good background image can be obtained when shooting a character. If the character is too close to the screen, the background will appear grainy when shooting close-ups, and it will also be prone to texture interference.
Second, the point spacing should be as small as possible
The dot pitch is the distance between the center points of adjacent pixels of the LED display. The smaller the dot pitch, the more pixels per unit area, the higher the resolution, the closer the shooting distance can be, and of course the more expensive it is. At present, the dot spacing of narrow pixel LED display screens used in domestic TV studios is mostly 1.5-2.5 mm. It is necessary to carefully study the relationship between the resolution of the signal source and the dot pitch, and strive to achieve consistent resolution and achieve point-to-point display. The best display.
Third, color temperature adjustment
When the studio uses the fine pixel LED display large screen as the background, its color temperature should be consistent with the color temperature of the studio, in order to get accurate color reproduction during shooting. The lighting of the studio is sometimes based on the demand of the program, sometimes using 3200K low color temperature lamps, sometimes using 5600K high color temperature lamps, and the LED display screen needs to be adjusted to the corresponding color temperature to obtain satisfactory shooting results.
Fourth, to ensure good use of the environment
The life and stability of LED large screens are closely related to the operating temperature. If the actual working temperature exceeds the scope of use specified by the product, not only will its life be shortened, but the product itself will be severely damaged. In addition, the threat of dust cannot be ignored. Too much dust will cause the thermal stability of the small pixel LED display to drop or even cause leakage. In severe cases, it will cause burns; dust will also absorb moisture, which will corrode the electronic circuit, causing some short-circuit problems that are difficult to check, so pay attention to keep the studio clean.
