Backlight Module of LCD Device

A backlight module of an LCD device, comprising:

• a back-up structure;
• a printed circuit board situated in the back-up structure;
• a plurality of point light source generators disposed on the printed circuit board;
• a reflection sheet, having a plurality of fillisters formed in the reflection sheet, covering the printed circuit board and each of the fillisters having a reflection surface, an opening, and a symmetrical axis;
• and
• at least one diffuser plate covering the reflection sheet, wherein an air space is formed between the diffuser plate and the reflection sheet;
• wherein the point light source generators are set in the fillisters through the openings, lights generated by the point light source generators are reflected by the reflection surfaces of the fillisters and the reflection sheet, and a profile of the point light source generators determines a shape of the fillisters.