| 摘要 |
Backlighting is provided for an LCD-TV display by directing light from a source into an open end of a cylindrical drum, the other end of which is closed. The drum has a highly reflective inside surface and a beam is directed through an orifice in the cylindrical wall of the drum. A plurality of optical fibers are positioned with one end of each on a circle coaxial with the drum and the other end of each attached along one edge of the panel to which backlighting is provided. The drum, and thus the beam, is rotated about its axis at constant angular velocity, providing light sequentially to each of the fibers with resulting scrolling of the light across the panel behind the LCD array. |
