In recent years, the development of LED devices has been very rapid, and many kinds of LED devices, such as video screen, graphic screen and digital display, have been welcomed by the industry. Below we introduce how to detect the photoelectric performance of full-color LED display. How to check the photoelectric performance of full color LED display? The following is a brief introduction to the technical staff of Shenzhen LightS
Photoelectric function of full color LED display:
1. Electrical characteristics include: light power, power factor.
2. Thermal functions include heat resistance and junction temperature.
3. Color characteristics include: color temperature, color foil index, chromaticity coordinates, color forgiveness, main wavelength
In recent years, the development of LED devices has been very rapid, and many kinds of LED devices, such as video screen, graphic screen and digital display, have been welcomed by the industry. Below we introduce how to detect the photoelectric performance of full-color LED display.
Photoelectric function of full color LED display:
1. Electrical characteristics include: light power, power factor.
2. Thermal functions include heat resistance and junction temperature. Full color LED display price
3. Color features include: color temperature, color, color, color, condoning, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, color, and color.
4. The characteristics of the day include switching frequency test, days/accelerated longevity experiment, internal repair rate (light pass retention rate)/strength repair rate.
Full color LED screen photoelectric function detection method:
1. Reflective cup MR16 or PAR beam viewpoint and light intensity can be measured by a small bedroom dispersive meter. When test, mechanical shaft, axial line. The defect is the test result of abnormal attitude of the test posture, the test results of the demand revision.
2. The light pass of LED lights can also be used to measure the dispersion of the meter, when the test gamma scale to180 degree and the middle of the mechanical shaft are aligned. The flaw is that the exam time is too long.
Photoelectric color features primary parameters include: total power, power factor, the light intensity distribution of lamps and lanterns, total output flux of lamps and lanterns, the output light efficiency, the rate of keeping the lumens retention/flux associated color temperature, color rendering index, color tolerance, color coordinate, color space is not uniformity, etc. On the premise of the correct test method, selected the appropriate testing method to complete the full color LED screen, accurate measurement of photoelectric color feature parameters, for scientific evaluating the nature of full-color LED display function status quo and development trend of supply data message.