Mobile phone backlight plate with novel light guide plate structure

The utility model discloses a mobile phone backlight plate with a novel light guide plate structure. The backlight plate includes an LED light source, a light shading sheet, a light intensifying layer which is formed through superposing an upper light intensifying sheet, a lower light intensifying sheet and a diffusion sheet, a light guide plate, a reflection sheet and a glue iron frame; a light entering end of the light guide plate is provided with a first wedge-shaped protrusion and a second wedge-shaped protrusion; the protruding end of the first wedge-shaped protrusion of the light guide plate is provided with the LED light source which is corresponding to a cut edge; the upper part of the LED light source is connected with the flexible circuit board; the flexible circuit board covers the LED light source and the first wedge-shaped protrusion; the flexible circuit board and the light intensifying layer are clamped between the light guide plate and the light shading sheet; the flexible circuit board and the light intensifying layer are arranged horizontally, and an interval between the flexible circuit board and the light intensifying layer forms a light leakage region; the second wedge-shaped protrusion of the light guide plate is corresponding to the light leakage region, and can refract leaked light back into the light guide plate; and the reflection sheet and the glue iron frame are arranged below the light guide plate. According to the mobile phone backlight plate of the utility model, the light guide plate is additionally provided with two wedge-shaped slopes, and therefore, the light source can be fully utilized, and cost can be saved, and brightness can be improved.