A High Density Full Color LED Display Panel on a Silicon Microreflector

摘要

A high-density full-color LED (light-emitting diode) display panel has been developed using LED array units which have many LED chips mounted on a silicon microreflector. The reflector is formed on a (100) silicon wafer by anisotropic chemical etching. The silicon microreflector absorbs the heat generated by the LED chips and improves their light-directive characteristics. The three types of LEDs (red, green and blue) in a unit are arranged in a matrix structure.