Abstract: A device for reducing the dark lines on a light scattering guide plate according to the present invention comprises a light scattering guide plate and at least one vein is disposed on a part of the surface of the light incident side thereof. At least one light tube is installed at the outer end of light incident side of the guide plate and a reflecting cover used to cover the light tubes is installed at the light incident side of the guide plate. Therefore, a beam can be scattered or converged to cause the dark lines around the light incident side to be shrunk or weakened effectively to enhance the light uniformity of the entire guide plate.