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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2006.5
- 수록면
- 241 - 245 (5page)
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초록· 키워드
오류제보하기
EEFL(External Electrode Fluorescent Lamp) for LCD displays are analyzed on electrical and optical characteristics by various electrode length. The electrodes of EEFL are coated at the outside of the glass tube. Brightness and efficiency of the EEFL are affected on lamp impedance characteristic. So, the experimental models are proposed for analysis and measurements of the brightness and efficiency of the lamps according to the electrode length.
The sample of LCD backlight unit is used for these experiments, EEFL arrayed BLU of 32" for commercial TV display. The parameters of the experiments were quantised for simple result reading as the length of electrodes as 15, 23 and 30 ㎜. The inverter was designed and manufactured in the laboratory as the Full-Bridge switching inverter. The feature of the output were measured on voltages about 1000 - 1400V at the currents of 11 - 29 mA and the brightness 15,000 cd/㎡ - 40,000 cd/㎡.
The experiments have shown that the brightness are increased by increasing of the electrode lengths which have the lamp currents increased. But at an certain conditions, the brightness and efficiency were decreased because of unmatched between the inverter output and lamp impedance.
The optimum applications of the EEFL BLU of 32" in this experiments have been shown to choose the parameters for driving frequencies of 100 ㎑ - 150 ㎑, the brightness of 18,000 - 19,000 cd/㎡ and efficiencies of 40 - 45 lm/w.
The sample of LCD backlight unit is used for these experiments, EEFL arrayed BLU of 32" for commercial TV display. The parameters of the experiments were quantised for simple result reading as the length of electrodes as 15, 23 and 30 ㎜. The inverter was designed and manufactured in the laboratory as the Full-Bridge switching inverter. The feature of the output were measured on voltages about 1000 - 1400V at the currents of 11 - 29 mA and the brightness 15,000 cd/㎡ - 40,000 cd/㎡.
The experiments have shown that the brightness are increased by increasing of the electrode lengths which have the lamp currents increased. But at an certain conditions, the brightness and efficiency were decreased because of unmatched between the inverter output and lamp impedance.
The optimum applications of the EEFL BLU of 32" in this experiments have been shown to choose the parameters for driving frequencies of 100 ㎑ - 150 ㎑, the brightness of 18,000 - 19,000 cd/㎡ and efficiencies of 40 - 45 lm/w.
목차
Abstract
1. 서론
2. 본론
3. 결론
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