| 摘要 |
<p>A light pipe (122) for a backlight assembly (120) has a front surface (126) and a back surface (124). The back surface (124) includes an integral surface diffuser microstructure formed thereon. The front surface may also have an integral surface diffuser microstructure formed thereon as well. A backlight assembly (120) has a reflective surface adjacent the back surface of the light pipe (122) and a separate diffuser film layer (134) disposed against the front surface (126). A pair of brightness enhancing film layers for collimating light are placed adjacent the diffuser film layer (134). A protective layer (150) is disposed over the brightness enhancing film layers. The integral diffusers on the front and back surfaces of the light pipe significantly enhance the brightness and light distribution uniformity of the assembly without adding additional components or reducing other performance characteristics of the assembly.</p> |
