Light source assembly formed of a plurality of light source modules detachably connected together

A light source assembly comprising:

• a plurality of light source modules detachably connected to one another,
• each light source module comprising:
• a frame part including a receiving groove formed in one side surface thereof, and a protruding unit formed on another side surface thereof and configured to be inserted into a receiving groove of another light source module of the plurality;
• an electrical connection part disposed on an upper surface of the frame part and extending onto the one side surface having the receiving groove disposed thereon and onto the other side surface having the protruding unit disposed thereon;
• at least one light emitting device mounted on the electrical connection part and disposed on the upper surface of the frame part;
• and
• a fixing element provided in the receiving groove and configured to selectively be coupled to a protruding unit of another light source module of the plurality that is inserted into the receiving groove.

A light source module comprising:

• a frame part having an upper surface and a plurality of side surfaces, the frame part including a female coupling disposed in one side surface thereof and a male coupling disposed on another side surface thereof and configured to be engaged with a female coupling of another light source module;
• an electrical connection part disposed on the upper surface of the frame part, extending to a first electrode pad disposed on the one side surface having the female coupling disposed thereon, and extending to a second electrode pad disposed on the other side surface having the male coupling disposed thereon;
• and
• at least one light emitting device mounted on the electrical connection part and disposed on the upper surface of the frame part,
• wherein the frame part is configured such that the light source module and the other light source module engaged thereto form a step structure in which upper surfaces of each of the light source modules are disposed on different levels.