Answer: bracket, silver glue, gold wire, chip, epoxy resin (glue).
Answer analysis: LED is mainly composed of the following five materials:
Bracket: used to support LED chip and electrode.
Silver glue: used to fix LED chip on the bracket.
Gold wire: used to connect the electrode of LED chip and the electrode of bracket to realize the conduction of current.
Chip: LED chip, which is the core part of LED light emission.
Epoxy resin (glue): used to encapsulate LED chip and electrode to protect them from the influence of external environment.