Full color LED display of attenuation and brightness - what are the characteristics Full color LED screen - knowledge

Full color LED display now is developing constantly, improve production technology to expand the market space, the effect of full color LED display in the development of time also is in the direction of energy conservation and environmental protection, production technology constantly innovation, promote the continuous development of full-color LED display. Attenuation and the brightness of the characteristics of full color LED display: attenuation characteristic red, green and blue leds have increased with the increase of working time intensity attenuation characteristics. Advantages and disadvantages of the LED chip, the stand or fall of auxiliary materials and packaging technology level of high and low attenuation speed determines the leds. In general, after 1000 hours, 20 ma lighting test at room temperature, red leds attenuation should be less than 10%, the attenuation of blue and green leds should be less than 15%. Red, green, and blue attenuation of the consistency of full-color LED display great influence on the white balance in the future, will affect the display fidelity of the display screen. Brightness of LED brightness is one of the important determinants of full-color LED display brightness. LED brightness is higher, the greater the allowance of using current, is good to save electricity, stabilizing the leds. LED value has a different point of view, in the case of chip brightness is set, the smaller the Angle, the LED is more bright, but the Angle of full-color LED display. Generally should choose 100 degrees of LED display screen enough to ensure that the point of view. In view of the different spacing and different visual display, should be in brightness, Angle and find a balance on the price.