The introduction of small spacing LED screen, LED display in the broadcasting industry more and more applications. Also shows that the LED screen in the TV studios are increasingly favored, but in the use of LED screen TV screen effect is very different, and some of the picture from beginning to end bright color, clear and stable; This requires us in the selection of LED screen and the use of the process to pay attention to a few problems.
1. Shooting distance should be appropriate
As mentioned in the previous point spacing and fill factor, the different point spacing, different filling coefficients of the LED screen, the appropriate shooting distance is not the same. With point spacing of 4.25 mm, filling coefficient of 60% LED display as an example, was shot characters and screen between the distance in 4-10 meters more appropriate, so that the shooting characters can get a relatively good background picture. If the character is too close to the screen, in the shot close-up, the background will appear granular sense, but also prone to mesh interference.
2. Point spacing to be as small as possible
Point spacing is the distance between the center points of the adjacent pixels of the LED electronic display. The smaller the point spacing, the more pixels the unit area, the higher the resolution, the closer the shot distance can be, of course, the more expensive the price. At present, the use of the LED screen in the studio of the domestic television station is more than 6-8 millimeters, to carefully study the signal source resolution and the relationship between the points, to achieve a consistent resolution, to achieve a point-to-point display, thus achieving the best results.
3. Color temperature can be adjusted
When the studio uses the LED screen as the background, its color temperature should be consistent with the light color temperature in the studio in order to get accurate color reproduction in the shooting. Studio Lighting According to program requirements, sometimes using 3200K low color temperature lamps, sometimes using 5600K high color temperature lamps, LED display needs to adjust to the corresponding color temperature, so as to obtain a satisfactory shot effect.
4. Ensure good use of the environment
The life and stability of the LED display are closely related to the working temperature. If the actual working temperature exceeds the scope of use of the product, not only will its life be shortened, but the product itself will be seriously damaged. In addition, the threat of dust can not be ignored. Too much dust, will make the LED screen thermal stability decline or even produce leakage, serious will lead to burn; Dust will also absorb moisture, thereby eroding the electronic circuit, causing some difficult to troubleshoot the short-circuit problem, so pay attention to keep the studio clean.