LIQUID CRYSTAL DISPLAY BACKLIGHT

摘要

A liquid crystal display backlight (10) includes a light pipe (14) having substantially parallel front and rear planar surfaces (16, 18) and a pair of opposed ends (20, 22). Elongated prisms (30) are formed into the rear surface. Each prism includes a pair of oppositely inclined faces (32, 34) that extend into the light pipe. Light (38) is injected into the light pipe at the opposed ends so that the light strikes the prisms and is reflected out the front surface.