How much electricity can full color LED electronic display cost per day
Author:Zhang Ying Time:2021-09-13 08:01 Browse(41)
The LED display screen can display changing numbers, words, graphics and images; It can be used not only in indoor environment, but also in outdoor environment. It has the incomparable advantages of projector, TV wall and LCD
The LED display screen can display changing numbers, words, graphics and images; It can be used not only in indoor environment, but also in outdoor environment. It has the incomparable advantages of projector, TV wall and LCD screen.
after understanding the technical measures of LED screen, it is helpful for you to select the LED screen.
brightness, because the large viewing angle LED package is selected, the brightness of single LED LED is reduced, and the tube core material with high brightness value is selected
the core material with low brightness decay rate is selected; Increase the number of LED for pixel; Increase the number of pixels per unit area.

How much electricity can full color LED electronic display cost per day

considering the stability of color mixing and color temperature.
we adjust the brightness of a single pixel to about 2500 MCD.
we select 2000 pixels per square meter.
the maximum brightness of the screen is not less than 5000cd / square meter, which ensures that the text image is still clear and visible even in outdoor strong light, The color and brightness of the screen can achieve satisfactory results.
fundamentally solve the defect of insufficient contrast of large screen video playback.
significantly improve the playback effect of large screen video playback.

color matching.
according to our six-year design and production experience and the latest technical information provided by domestic and foreign LED lamp suppliers for a long time, Several experiments have been carried out.
the pixel used in the three primary color LED large screen display system is composed of 8 pixels, including 2 red and 6 green Ф 5 LED, the pixel center distance is 22mm.
the ultra bright green LED chip adopts Taiwan Guanglei 113 ygu products.
the ultra bright red LED chip adopts Taiwan Guanglei n90hou four yuan red products.
the red LED wavelength is 640nm.
the single point luminous intensity is 200mcd; The wavelength of green LED is 570nm,The single point luminous intensity is 125mcd.

brightness adjustment in order to ensure the viewing effect under different illumination conditions.
we design the display screen with 16 levels of brightness adjustment, which can be adjusted by manual and automatic ways.
the luminous pixel driver adopts static latch mode and PMW (pulse width modulation) gray adjustment mode.
to improve the LED photoelectric conversion efficiency and reduce heat, To ensure the reliability of LED.

uniformity LED large screen display consists of a large number of light-emitting diodes.
due to the dispersion of millions of devices.
it is difficult to achieve the same brightness of each light-emitting diode in the large screen.
in order to improve the uniformity of LED large screen display.
we take the following measures: 5-1 select the light-emitting materials with good consistency; 5-2 use a grade of LED; 5-3 reasonable selection of driving circuit and driving current; 5-4 using the point by point brightness correction technology.
the above measures can further improve the brightness consistency, achieve monochrome display without obvious visual difference, and basically improve the mosaic phenomenon.
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in this paper, the method of point by point brightness correction is proposed
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