Abstract: An illumination module includes a light bar, an LED assembly, a positioning member, a sleeve and a lamp receptacle. The light bar has a first end and a second end opposite the first end. A microstructure layer or a reflective layer is formed on the light bar, and a positioning pillar is formed on an outer side of the light bar. The emitting light of the LED assembly is diffused by the microstructure layer or reflected by the reflective layer to spread over the entire light bar. The positioning member, the sleeve, the LED assembly or the lamp receptacle has at least one guide slot that engages with the positioning pillar of the light bar.

Abstract: An illumination module includes a light bar, an LED assembly, a positioning member, a sleeve and a lamp receptacle. The light bar has a first end and a second end opposite the first end. A microstructure layer or a reflective layer is formed on the light bar, and a positioning pillar is formed on an outer side of the light bar. The emitting light of the LED assembly is diffused by the microstructure layer or reflected by the reflective layer to spread over the entire light bar. The positioning member, the sleeve, the LED assembly or the lamp receptacle has at least one guide slot that engages with the positioning pillar of the light bar.

Abstract: An edge type back light module and a display device using the same are provided. The edge type back light module includes a light guide plate (LGP), a light source and a frame. The LGP has a light-receiving surface, a light-emitting surface and a light-reflecting surface opposite to the light-emitting surface. The light-emitting surface faces the display panel. The light source is adjacent to the light-receiving surface for emitting a light. The frame has a frame surface and a light guide portion. After a portion of the light contacts the light guide portion, the light guide portion disposed on the frame surface guides the portion of the light to be emitted from the light-emitting surface. A predetermined angle is contained between the outgoing direction of the portion of the light emitted from the light-emitting surface and the normal direction of the light-emitting surface.