Reflect Plate of Direct type Backlight using LED and Backlight unit thereof

摘要

The present invention is to form a front light and the unevenness of the shape for a variety of radiation from the light source of the LED reflector reflects the light reflected from the medium efficiently, to the front of the direct-type light emitting diode that can be diffused by the diffusion plate and the light-converging device of the backlight light source, from multiple light sources and the light source consisting of a light emitting diode and a diffusion plate for diffusing light to the liquid crystal display panel and the condenser, are located at the lower side of the light source to be reflected back to the part of the light reflected from the light diffusion plate and the light source is radiated from the light source to incident upon the diffusion plate The convex irregularities of a trapezoidal shape is formed between the arrangement, the image-side surface of the concave-convex is characterized in that the reflector comprises a groove formed in a round shape or a 'V' shape. Optimizing the reflection of incident light, and that re-routes according to the angle of light reflected by the structure as described above, and by reducing the diffusion plate and the interval of the uneven surface and the image side can be increased and the efficiency of light incidence efficiency of the light reflection of the backlight unit can improve the brightness and uniformity of brightness, it is possible to reduce the used quantity of the LED, not provided with a separate diffusion sheet occupying a space that provides a more slim backlight unit.