Patent ID: 9019444
Filing Date: 2015-04-28
Classification: G02B

Abstract:
1. An edge-type backlight module, comprising: a printed circuit board comprising a supporting surface; a plurality of light emitting diodes disposed on a left part of the supporting surface, each of the light emitting diodes comprising a light emitting surface and light emitted by the light emitting diodes being emitted from the light emitting surface; a reflective film disposed on a right part of the supporting surface; a light guide plate disposed above the reflective film so that the reflective film being disposed between the light guide plate and the supporting surface; a reflective surface disposed on a side edge of the light guide plate and being kept a distance from the light emitting diodes, the reflective surface being used for reflecting the light emitted from the light emitting surface; and an absorbing surface disposed on the supporting surface and beside the light emitting diodes for absorbing the light reflected by the reflective surface, the absorbing surface is disposed on the supporting surface and between every two of the light emitting diodes adjacent to each other, the absorbing surface is made of a colloid substance, a soft tape or a thermally conductive tape, wherein colors of the colloid substance and the soft tape are black color or gray color, the absorbing surface is disposed on the supporting surface and between the light emitting diodes and the reflective film, a thickness of the thermally conductive tape is equal to or larger than a thickness of the reflective film, the absorbing surface further comprises: