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

Volume

41

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

504

Lastpage

510

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;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.278502

Filename

278502