SIMULATION OF TEMPERATURE DISTRIBUTION IN THE InGaN LED MATRIX WITH HIGH DENSITY OF RADIATION POWER

Abstract

The matrix consisting of 33 miniature LEDs of Rebel Z-series emitting in the blue-green region of the spectrum was created. The maximum emission power density of the matrix was ~ 18 W/cm2 at continuous injection current. A computer model describing the temperature distribution in the matrix of LEDs depending on the supplied electrical power was developed. The simulation results are consistent with the results of measurement of the matrix LEDs temperature by a thermal imager, as well as with the results of determination of the LED active region temperature by the optical method.