Thermal Design of LED Backlight in High Ambient Temperature
Different from common commercial liquid crystal displays (LCDs), LCDs in military applications have some special requirements including high luminance, wide operating temperature, and night vision compatibility. This paper designs a direct-lit LED backlight for a 5 in×5 in LCDs and puts forward three solutions for heat dissipation. The simulation results show that the solution of 17×17 LED array on common opening FR4 PCB can satisfy the requirement.
Yuan Ming Huang
T. Liu et al., "Thermal Design of LED Backlight in High Ambient Temperature", Solid State Phenomena, Vols. 181-182, pp. 208-211, 2012