Capacitive coupled electrodeless discharge backlight driven by square pulses

Cho, T.S.; Kwon, N.O.; Kim, Y.M.; Kim, H.S.; Kim, S.J.; Kang, J.G.; Choi, Eun‐Ha; Cho, Guangsup

doi:10.1109/tps.2002.807501

Cited by 34 publications

(6 citation statements)

References 5 publications

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“…The fine-tube cold cathode fluorescent lamp (CCFL) [1][2] and external electrode fluorescent lamp (EEFL) [3][4][5][6][7][8][9], have been widely used as a backlight source in liquid crystal display (LCD) modules. In a notebook PC, the glass tube diameter of the lamp is a small as 1 mm.…”

Section: Introductionmentioning

confidence: 99%

Plasma Wave Propagation with Light Emission in a Long Positive Column Discharge

Cho¹,

Verboncoeur²

2010

Wave Propagation in Materials for Modern Applications

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Section: Introductionmentioning

confidence: 99%

Plasma Wave Propagation with Light Emission in a Long Positive Column Discharge

Cho¹,

Verboncoeur²

2010

Wave Propagation in Materials for Modern Applications

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“…Because it has a number of merits, typically including long lifetime, simplicity of manufacture, mass product and low cost. Moreover, direct lighting backlights comprising multiple EEFLs connected in parallel can be driven with a single inverter [1][2][3][4][5][6][7][8][9][10] . Considering these merits of EEFL, LG.…”

Section: Introductionmentioning

confidence: 99%

26.3: High-Performance EEFL Backlight System for Large-Sized LCD-TV

Kim¹,

Kang²,

Yoon³

et al. 2006

SID Symposium Digest

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We suggest the novel EEFL (External Electrode Fluorescent Lamp) Backlight System 3 types; the first aspect is a high optical efficiency second is reduction of mechanical size of Backlight, and the last is low power consumption in large LCD Backlight System. To gain a high optical efficiency, we consider the narrow diameter (φ 3.0) lamp of EEFL Backlight System. As the impedance of the narrow diameter (φ 3.0) lamp is higher than that of conventional (φ 4.0) EEFL. A high impedance of lamp is caused the increase of power consumption and a driving voltage of lamp. But its characteristic of an enhancement luminance could be possible for a high optical efficiency. We introduce a method for decrease of a mechanical size for large Backlight. The length of electrode for EEFL system must be increased as a small diameter and a long length of lamp. For that reason is caused the increase of Bezel Size For LCD TV. In this paper, we suggest a DEFL(Differential Diameter External Electrode Fluorescent Lamp). DEFL is made by junction between φ 4.0mm glass tube of emission part and φ 8.0mm glass tube of electrode part. Finally we explain φ 4.0mm EEFL system for low power consumption in comparison with φ 4.0mm CCFL backlight system.

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“…EEFLs and EEFL-BLU have been introduced since 2000 [1][2][3][4][5][6][7][8][9][10]. The application of the arrays of EEFL-lamps to BLUs for 32" LCD-TV has been recognized in Korea industry from 2004.…”

Section: Introductionmentioning

confidence: 99%