Device for the backlighting of a liquid crystal display that...

Details Device for the backlighting of a liquid crystal display that... Device for the backlighting of a liquid crystal display that...

2006-08-29

2006-08-29

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C313S636000, C313S634000

Reexamination Certificate

active

07098598

ABSTRACT:
The invention relates to a low-pressure gas discharge lamp which includes at least one discharge vessel and at least two capacitive coupling-in structures and operates at an operating frequency f. In order to achieve a better efficiency in combination with a small structural volume, a high luminous flux, a low operating voltage, a low electromagnetic emission, a high resistance against switching transients and a long service life for the low-pressure gas discharge lamp, it is proposed to form each capacitive coupling-in structure from at least one dielectric having a thickness d and a dielectric constant ∈, each dielectric being subject to the condition d/(f.∈)<10−8cm·s. A substantially larger amount of light can thus be generated per lamp length (lumen/cm).

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