Abstract: A light-emitting diode (LED) array light source includes a substrate, a meshed light-shielding layer, LED chips, and a micro-lens array. The meshed light-shielding layer includes bar-shaped light-shielding patterns intersected with one another to define openings. Each bar-shaped light-shielding pattern has a bottom surface, a top surface, and two side surfaces. A width of the top surface is smaller than that of the bottom surface. A thickness of the meshed light-shielding layer is T1. Each LED chip is exclusively located in one of the openings. The micro-lens array covers the substrate, the meshed light-shielding layer, and the LED chips and includes micro-lenses arranged in array. Each micro-lens includes a base portion and a lens portion, and is disposed corresponding to one of the openings, respectively. A vertical distance from a top portion of each micro-lens to the bottom surface is T2, and 0.278?T1/T2?0.833.