Holding frame and backlight module using the same

A backlight module comprising:

• a reflecting plate;
• a plurality of lamp pairs disposed above the reflecting plate, each lamp of the lamp pairs having two electrode holders at two opposite ends thereof respectively and a plurality of lamps wires for interconnecting the electrode holders;
• and
• a pair of holding frames disposed at two opposite sides of the reflecting plate, each of the holding frames comprising:
• a top surface, a bottom surface, an outer surface, and an inner surface;
• a plurality of electrode receiving openings defined at the top surface;
• a plurality of wiring openings defined at the bottom surface;
• a plurality of electrode groove pairs defined at the outer surface, each electrode groove of each of the electrode groove pairs communicating between a respective one of the wiring openings and a respective one of the electrode receiving openings, the electrode groove pairs-configured for receiving the electrode holders of the lamp pairs, wherein in each of the holding frames, each of the electrode grooves is partly bounded by a pair of railings formed at the outer surface, and a width between the railings is less than a corresponding width of the electrode receiving opening at the electrode groove;
• and
• a plurality of wiring channels defined at the bottom surface, each wiring channel communicating between the wiring openings at a corresponding electrode groove pair, the wiring channels configured for receiving selected portions of the lamp wires;
• a plurality of wiring outlet pairs defined at the bottom surface, and each wiring outlet of each of the wiring outlet pairs communicating between a respective wiring channel and the inner surface;
• and
• a depressed area parallel to the inner surface, and a plate mounting surface located at the depressed area, wherein the plate mounting surface is parallel to the inner surface, and parallel to the outer surface but at a side of the holding frame opposite to the side where the outer surface is;
• wherein the reflecting plate comprises a bottom portion, the bottom portion defines a plurality of reflecting surface pairs, and the reflecting surface pairs correspond to the lamp pairs and are generally adjacent each other:
• and each reflecting surface pair comprises two reflecting surfaces parallel to each other, each reflecting surface comprises a first concave surface, a second concave surface, and an inclined flat surface interconnecting the first concave surface and the second concave surface, and in each of the holding frames, each of the mounting structures comprises a first protrusion and a second protrusion, the first and second protrusions are located generally at respective opposite sides of a corresponding one of the electrode grooves and are oriented symmetrically opposite each other, and bottom surfaces of the first and second protrusions are convex and shaped to match the curvatures of the first and second concave surfaces of a corresponding one of the reflective surfaces of the reflecting plate.