LED display screen is a solid semiconductor device that uses light-emitting diodes as light source conductors of light-emitting data and can directly convert electric energy into light energy. LED display screen is also an advanced digital information product integrating computer technology, image processing technology, network communication technology, embedded control and other technologies. It has the characteristics of agile and diverse display fields and arbitrary combination, high resolution, high brightness, low heat, short life, low power consumption, economic benefits, environmental protection and durability.
When using LED display, pay attention to the following matters:
However, LED display also has “disadvantages”. Please pay attention to the following matters when purchasing or using:
First, the filling factor should be high
So, what is the filling factor? The fill factor of the LED display is also known as the highlight scale column. That is, the proportion of each light-emitting region and the physical external part occupied by the pixel. In addition, the LED display screen is arranged by separate pixels, and there are obvious non luminous black areas between the pixels. From a close distance, the screen connection is poor, the brightness is uneven, and the particles are uneven. If the luminous light source is limited to the appearance of small pixels, a more serious visual sense will be formed when the brightness of a single pixel is several times or more than 10 times that of the whole screen.
The filling factor of display equipment must be more than 50%. For LED displays with the same point interval, the demand for shooting interval increases because the filling coefficient is small and the attenuation is much greater than the filling coefficient. On the contrary, assuming that the low-pass filter path band of the system is 4MHz and the high-frequency attenuation characteristic is 12dp frequency doubling, the shooting interval with a charging coefficient of 25% is 1.15dp less than that with a filling coefficient of 50%, and the shooting interval is increased by about 10%. Therefore, the higher the filling factor, the more common the vision of the display screen and the better the mixing effect. Therefore, in order to deal with the invisible problem and achieve better results, the conditions for appropriately improving the brightness of the whole screen are invented. Provide gentle, beautiful, average and exquisite high-quality image quality.
Second, the interval between points should be small
The point spacing is also the spacing between the LED display screen and the pixel center point. The smaller the point interval, the more pixels per unit area, the higher the resolution, and the closer the shooting interval. Therefore, in order to obtain excellent display effect, we must pay attention to the relationship between the resolution of signal source and point spacing, and try our best to create resolution difference to achieve point-to-point display effect.
3、 Color temperature regulation state
The color temperature is the temperature of the shape of the blackbody radiometer that can be compared with the outer shape of the launch vehicle radiometer. For example, if the studio uses the LED display as the background display, in order to accurately reproduce the color in the studio, the indoor lighting color temperature of the studio must be different. Therefore, as long as the LED display screen is adjusted to an appropriate color temperature, a satisfactory shooting effect can be obtained.
4、 Appropriate use environment
LED display screen is an integrated electronic product, which is mainly composed of instrument panel with electronic components, illuminator, switching power supply and other components. The stability and life of these parts are closely related to the applicable environment. If the actual working temperature exceeds the applicable scope of the product rules, it will not only shorten the service life, but also seriously damage the product itself. In addition, when working in a dusty environment, the accumulation of dust will also affect the cooling of electronic parts, the temperature of parts will rise, the heat will land stably, resulting in electric leakage. In more serious cases, the equipment will be burned, resulting in huge economic losses. Therefore, the environment should also use the “priorities” that need attention