Optical simulation design of surface mounted device beads for wide beam and high uniformity display

Through analysing the optical requirements of wide beam and high uniformity light beads, which are currently used in displays, and packaging micro Light -Emitting Diode (LED) chips with a novel nonLambertian distribution, we realized the production of wide beam and high uniformity micro -LED chip light beads. The light output efficiency and beam angle of fixed beads were simulated using brackets made of copper, titanium, aluminium and silver, as well as materials that were completely reflecting and absorbing. The simulations were conducted at various fixture angles, packaging heights, packaging materials, sapphire thicknesses, and patterned sapphire substrate sizes. By adjusting the chip and packaging parameters, we can obtain one, two, or three light beams with Surface Mounted Device (SMD) lamp beads characteristics that provide wide angles, high uniformity, and far -field light distribution. These characteristics can meet the current display requirements for LED and LCD.