Thin background illuminating module for LCD of data and communication products, with wedge-shaped light guide and top and bottom surface, with top one larger and forming first reception space for light soruce

摘要

Wedge-shaped light guide (30) has top (301) and bottom surface (302). Top surface is larger and forms first reception space (303) for light source (31). There is heat conductor (32) on light source side, away from light guide.Heat conductor is retained in second reception space (304) of light guide of next background illuminating module. Thus two adjacent top surfaces get closely together and modules may be combined as required. Preferably light source contains printed circuit board, control chip and light source proper.