Backlight using transverse dynamic RF electric field and transpa

Details Backlight using transverse dynamic RF electric field and transpa Backlight using transverse dynamic RF electric field and transpa

1998-03-31

1999-07-20

Shingleton, Michael

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

313326, 315246, H02B 3702

Patent

active

059259884

ABSTRACT:
Disclosed are a backlight and a method of driving the same to provide a uniform low intensity source of light for a liquid crystal display. The fluorescent lamp includes a fluorescent lamp and a drive circuit coupled to the anode and to the cathode of the fluorescent lamp for supplying the fluorescent lamp with a drive current. First and second longitudinally extending substantially transparent conductor members are disposed externally along the length of the lamp. A radio frequency (RF) signal generator connected to each of the first and second longitudinally extending conductor members drives the first and second conductor members with an RF signal to generate a dynamic RF electric field within the glass tube.

REFERENCES:
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patent: 3755708 (1973-08-01), Audesse
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patent: 5272327 (1993-12-01), Mitchell et al.
patent: 5420481 (1995-05-01), McCanney
Duane A. Grave, Scot Olson and Philip Brown, Cockpit Displays II, Proceedings--SPIE--The International Society for Optical Engineering, Enhanced AMLCD and Backlight for Extended Luminance Range and Sunlight Readability, vol. 2462, Apr. 19-21, 1995.

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