| 摘要 |
<p>A light guiding system (1), a side type backlight module (2) and a liquid crystal display (3). The light guiding system (1) comprises an environment light collection system (10) facing and absorbing environment light (CL); a plurality of light guiding devices, each of which is provided with a light inlet end (22) and a light outlet end (21), wherein the light outlet end (21) is close to a light inlet side (31) of a light guiding plate (30), the light inlet end (22) is close to the environment light collection system (10), and the absorbed environment light (CL) enters into the light inlet end (22) and is transmitted to the light outlet end (21); and a fluorescent film (40) arranged between the light outlet end (21) and the light inlet side (31). The fluorescent film (40) enables light beam emitted from the light outlet end (21) to be scattered, which improves the phenomenon of uneven brightness on the light inlet side (31) brought by the light beam emitted from the light outlet end (21) and the optical performance of the side type backlight module (2), and moreover, the shortwave light with wavelength of 200nm to 400nm can be converted into visible light by the fluorescent film (40) to prevent parts of the side type backlight module (2) from being irradiated by the shortwave light, and thereby improve lifetime of the parts, and thereby improve lifetime of the liquid crystal display (3).</p> |
