What are the precautions for using the LED display? Today, let’s understand the important precautions for the use of full-color LED displays, one of the mainstream terminal display devices.

  LED is a light source conductor that uses light-emitting diodes as luminescent materials. As a solid-state semiconductor device, it can directly convert electrical energy into light energy; and the full-color LED display is also an advanced digital information product. "The successful integration of computer technology, image processing technology, network communication technology, embedded control technology, etc., makes it have a flexible and changeable display area and can be spliced arbitrarily, high resolution, high brightness, low heat, and long life. , Low power consumption, economical, environmentally friendly and durable, and other performance advantages, it is a terminal display product that can display in all directions.

  However, full-color LED displays also have certain "disadvantages". Therefore, the following points should be paid attention to when purchasing or using:

  1. The filling factor should be high:

  So, what is the fill factor? The fill factor of a full-color LED display is also called the ratio of the bright area, that is, the ratio of each light-emitting area to the physical surface area occupied by the pixel. And the full-color LED display is made up of discrete pixels, and there are obvious non-luminous black areas between the pixels. Therefore, when viewed at close range, the picture is inconsistent and incomplete, and uneven brightness produces a grainy feeling. The light source is limited to a small pixel surface area, so that when the brightness of a single pixel is several times or even more than ten times the brightness of the entire screen, it will cause a more serious glare. The TCO’99 standard recognized by the flat panel display industry stipulates that the fill factor of display devices should not be less than 50%.

  The full-color LED display with the same dot pitch has more attenuation with a smaller filling factor than a larger filling factor, so the shooting distance needs to be increased; and if the system low-pass filter passband is 4MHZ, the high-frequency attenuation characteristic is 12dp octave, then the shooting distance with a filling factor of 25% will attenuate 1.15dp more than the filling factor of 50%, and the shooting distance needs to be increased by about 10%. Therefore, the higher the fill factor, the wider the viewing angle of the display screen and the more ideal color mixing effect; therefore, the problem of glare is solved, and conditions are created for appropriately increasing the brightness of the entire screen to obtain better results. ; And bring soft, beautiful, uniform, clear and delicate high-quality picture quality.

  2. The point spacing should be small:

  The dot pitch is the distance between the adjacent pixel center point of the full-color LED display. The smaller the dot pitch, the more pixels per unit area, the higher the resolution, and the closer the shooting distance can be; therefore, in order to achieve an excellent display effect, it is necessary to pay attention to the resolution of the signal source and the dot pitch. The relationship between the two, and strive to achieve the same resolution, has reached point-to-point display, so as to achieve the best display effect.

  Third, the adjustment status of color temperature

  The color temperature is the temperature determined by comparing the shape of the emission spectrum of the emitter with the shape of the best-fit blackbody emission spectrum. For example: when the studio uses a full-color LED display as the background display, its color temperature should be consistent with the color temperature of the studio’s indoor lighting to get accurate color reproduction during shooting; therefore, as long as the full-color LED display is adjusted to With the corresponding color temperature, satisfactory shooting results can be obtained.