1
Kevin J Hathaway, Richard M Knox Jr, Douglas A Arego, Gaylon R Kornfuerhrer: Faceted light pipe. Compaq Computer Corporation, Pravel Gambrell Hewitt Kimball & Krieger, September 24, 1991: US05050946 (259 worldwide citation)

A light pipe used for backlighting liquid crystal displays has a planar front surface and a stairstepped or faceted back surface. Light is injected from the ends of the light pipe from cold or hot cathode, apertured, fluorescent lamps. The cold cathode lamps are preferably insulated to raise their o ...


2
Douglas A Arego, Kevin J Hathaway, Richard M Knox Jr, Gaylon R Kornfuehrer: Backlighting system with faceted light pipes. Compaq Computer Corporation, Christopher D Keirs, April 13, 1993: US05202950 (254 worldwide citation)

A light pipe used for backlighting liquid crystal displays has a planar front surface and a stair-stepped or faceted back surface. Light is injected from the ends of the light pipe from cold- or hot-cathode, apertured, fluorescent lamps. The cold-cathode lamps are preferably insulated to raise their ...