Flat light source apparatus with separable unit boards

A method for manufacturing a flat light source apparatus comprising the steps of:

• preparing an assembly of flat light sources, wherein the assembly comprises:
• a light source board which comprises a plurality of unit boards, each unit board having a printed circuit board and a light source formed on the printed circuit board, wherein said plurality of unit boards are arranged adjacent to each other at least in one direction, and any pair of the unit boards adjacent to each other is integrated by a connecting portion provided therebetween;
• at least one main wire which extends along a plane of the light source board, wherein said at least one main wire extends between adjacent unit boards via the connecting portion such that all of the unit boards are electrically connected to each other by said at least one main wire;
• and at least one branch wire for supplying electric power to the light source, said at least one branch wire being provided in each unit board and branching from the main wire in each unit board;
• cutting the assembly along at least one connecting portion;
• and
• connecting a power supply to one of the main wires,
• wherein the adjacent unit boards and the connecting portion are a monolithic structure.

An assembly of flat light sources comprising:

• a light source board which comprises a plurality of unit boards, each unit board having a printed circuit board and a light source formed on the printed circuit board, wherein said plurality of unit boards are arranged adjacent to each other at least in one direction, and any pair of the unit boards adjacent to each other is integrated by a connecting portion provided therebetween;
• at least one main wire which extends along a plane of the light source board, wherein said at least one main wire extends between adjacent unit boards via the connecting portion such that all of the unit boards are electrically connected to each other by said at least one main wire;
• and
• at least one branch wire for supplying electric power to the light source, said at least one branch wire being provided in each unit board and branching from the main wire in each unit board,
• wherein the adjacent unit boards and the connecting portion are a monolithic structure.