| 摘要 |
PROBLEM TO BE SOLVED: To provide a side face irradiation type backlight module.SOLUTION: A back plate installed in a rectangular shape is provided with a light reflection microstructure. A first light reflection part which forms an inclined plane or arcuate plane is used to reflect a light beam having a relatively small inclined angle to a normal, a second light reflection part reflects a light beam having a relatively large inclined angle to the normal, and a third light reflection part reflects a light beam having the largest inclined angle to the normal, the respective beams being emitted by a plurality of light emitting diodes. The light beams differing in energy intensity are thus projected on respective places of a panel through various paths. Consequently, light emission effect is obtained such that light emission diode emitted light has light intensity uniformly distributed on the panel after direct irradiation and reflection by the back plate. |
