Title :
Design of a multi-channel true flat fluorescent lamp for avionic AM-LCD backlighting
Author :
Anandan, Munisamy ; Ketchum, Douglas ; Etlinger, Hank ; Kirker, Robert ; Carr, William
Author_Institution :
Central R&D Lab., Thomas Electron. Inc., Wayne, NJ, USA
fDate :
4/1/1994 12:00:00 AM
Abstract :
For backlighting a direct view avionic liquid crystal display (LCD), a multi-channel true flat fluorescent lamp (T-FFL) has been designed and developed. The design and development was accomplished through (1) electric field plot for various ratios of depth to height of the hollow cathode, (2) decrease of charge losses, (3) employment of internal dielectric mirror, (4) monitoring of the penetration of internal positive column, and (5) design of a constant current drive for T-FFL. A luminance of 3000 fL. with a luminous efficiency of 16.2 l/w has been achieved on a 3" diagonal T-FFL
Keywords :
aircraft instrumentation; electric fields; flat panel displays; fluorescent lamps; liquid crystal displays; losses; 3 in; active matrix display; avionic AM-LCD backlighting; charge losses reduction; constant current drive; direct view avionic liquid crystal display; flat fluorescent lamp; hollow cathode; internal dielectric mirror; internal positive column penetration; multichannel design; Active matrix liquid crystal displays; Aerospace electronics; Cathode ray tubes; Color; Dielectric losses; Fluorescent lamps; Liquid crystal displays; Mirrors; Senior members; Substrates;
Journal_Title :
Electron Devices, IEEE Transactions on
