| 摘要 |
Methods and apparatus are provided for increasing the efficiency of a fluorescent lamp suitable for use as a backlight in a liquid crystal display (LCD). The apparatus includes a light producing cavity/channel that encloses a vaporous material that produces an ultraviolet light when electrically excited. A layer of light-emitting material within the channel produces the visible light emitted from the lamp in response to the ultraviolet light, and a faceplate made up of a substantially transparent material is affixed to the cavity to confine the vaporous material. To increase the efficiency of the lamp, a coating is provided on the faceplate that reflects ultraviolet light and transmits visible light. The coating may be applied on either the internal or external surface of the faceplate. |
