• 제목/요약/키워드: Discharge Structure

검색결과 1,050건 처리시간 0.031초

New electrode structure for reducing power consumption of PDPs

  • Jung, Hae-Yoon;Cheong, Hee-Woon;Lee, Tae-Ho;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.69-72
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    • 2008
  • A new electrode structure is proposed in this paper which can increase the discharge efficiency of plasma display panels and also decrease the panel capacitance by decreasing the electrode area effectively. Even with the decreased electrode area, the proposed structure could suppress the requirement for increasing the voltage and improve efficiency by limiting the discharge current.

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LCD 후면 광원용 FEL의 전기적 및 광학적 특성 (Electrical and Optical Characteristics of Flat Fluorescent Lamp for LCD Back-lighting)

  • 김명녕;권순석
    • 한국정보통신학회논문지
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    • 제7권4호
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    • pp.725-729
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    • 2003
  • 본 논문에서는 LCD 후면 광원용 한 쌍의 형광층, 방전용기 및 대향전극을 갖는 무수은 평판형광램프에 대하여 연구하였다. 구동 전압이 인가되면 균일한 방전이 램프 전체에 걸쳐서 발생한다. 방전개시전압은 가스 압력에 따라 증가한다. 이와 같은 경향은 방전 가스 압력의 증가에 의한 평균자유행정의 감소에 기인된 것으로 생각된다. 녹색 발광 평판형광램프에서 최대 2700[cd/m2]의 휘도를 얻었다.

중간간격을 갖는 교류형 플라즈마 디스플레이 표시기의 소거파형 연구 (Design of Erase Waveform for Stabilizing Reset Discharge in Mid-gap AC Plasma Display Panels)

  • 윤수한;서정현
    • 전기학회논문지
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    • 제60권5호
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    • pp.993-998
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    • 2011
  • In this paper we suggest new criteria for the classification of the electrode gap between common and scan electrodes. The electrode gap is categorized as a short, middle, and long gap according to the criteria. Among these structures, we focus on the erase waveform of a mid-gap structure. we report an unstable discharge arising from the erase ramp period in a mid-gap structure. Based on the Vt close curve, we analyze the unstable discharge at various conditions. Our analysis reveals that the unstable discharge is ignited between surface electrodes and caused by un-erased wall charges accumulated on the outer edges of electrodes. By reducing the voltage level of the last sustain pulse, the problem is solved.

직각 흡음체 설치 경량방음터널의 토출소음 저감효과 분석 (Analysis of Reduction Effect on Noise Discharge from Lightweight Soundproof Tunnels Installed with Lateral Sound-absorbing Panels)

  • 정영도;안동욱;노명현
    • 복합신소재구조학회 논문집
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    • 제7권1호
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    • pp.19-24
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    • 2016
  • Most of the soundproof tunnels generate significant discharge noise through their inlets and outlets so that the length of the tunnel has been extended frequently than required to minimize the effect on such discharge noise. Thus, in this paper, we investigate reduction capability of discharge noise from the sound proof tunnel installed with lateral sound-absorbing panels on the partitioned truss members in the longitudinal direction of the tunnel. In conclusion, noise field analysis results shows that the sound proof tunnels with lateral sound-absorbing panels have an effect on discharge noise abatement and thereby tunnel's length reduction.

PDP cell 구조에 따른 방전전류 파형 계측 (A Measurement of Discharge Current of Plasma Display Panel as a cell structure)

  • 이우근;하석천;이성현;신중홍;조정수;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 E
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    • pp.1746-1748
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    • 1997
  • The surface discharge type ac plasma display panel(ac PDP) is a flat display devices using gas discharge. In ac PDP, parallel electrodes covered with dielectric layer are on a substrates. The discharge current characteristics are affected by cell structure. In this study, the relationship between the principal design factor and discharge characteristics is discussed, based on experiment, and the current waveform is measured by voltage detector and storage O.S.C. as a parameter of design factor, e.g., electrode gap and width.

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플라즈마 디스플레이 패널의 방선 AND gate에 간한 연구 (A Study on the Discharge AND Gate of Plasma Display Panels)

  • 손현성;채승엽;염정덕
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2001년도 학술대회논문집
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    • pp.39-46
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    • 2001
  • The plasma display panel with the electrode structure of new discharge AND gate was developed and the driving system for experiment was developed. And discharge AND gate operation was verified. Discharge AND gate operated by the operation speed of 8$mutextrm{s}$ and the operation margin of 20V. It was known to be able to control the discharge of the adjoining scan electrode accurately. Because this method uses the DC discharge, the control of the discharge can be facilitated compared with conventional discharge AND gate. Moreover, because the imput discharge and the output discharge of AND gate are separate, the display discharge can be prevented from passing AND gate. Therefore, it is possible to apply to the large screen plasma display. And the decrease of contrast ratio does not occur because the scanning electrical discharge does not influence the picture quality.

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로브형 버너에서의 NOx 배출 특성에 관한 연구 (A Study of Characteristics of NOx Emission in Lobed Burner)

  • 조한창;조길원;이용국
    • 한국연소학회지
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    • 제6권1호
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    • pp.1-6
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    • 2001
  • To evaluate the effect of lobed structure on pollutant emission, an experimental study examines NOx and CO emissions associated with four burner geometries, such as a conventional circular burner and three lobed ones. Rapid mixing allowed by the lobed burner to produce lean premixed flames, with narrower flame stability diagram than for the conventional circular one. Conventional circular burner of wide and uniform burner rim has an advantage of flame stabilization. Correlation on fuel discharge velocity for flame blowout should be included a variable related to the wall effect of the burner. NOx emission reduces by about 5% at the burner with lobed structure in fuel discharge side compared to conventional circular one. This is due to lower flame temperatures through flame elongation and increased radiative heat losses, caused by partially luminous flame in flame front. Meanwhile, at the burner with lobed structure in air discharge side and both fuel and air discharge sides, NOx emission somewhat increases with reduced radiative heat losses in spite of flame elongation. Therefore, the rapid mixing by lobed structure does not always have an advantage on NOx reduction.

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Full Size PDP Development with SDR Structure for Improved Luminance and Low Power Consumption

  • Yoo, Min-Sun;Yoon, Cha-Keun;Lee, Kwang-Sik;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.53-56
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    • 2002
  • Samsung's newly developed high luminance efficiency 42" VGA plasma display panel is introduced. A new discharge cell structure, SDR (Segmented electrode in Delta color arrayed Rectangular subpixel) has been applied to a full size panel for the first time. In this paper, we describe how this new discharge cell structure for high efficiency is integrated to an energy saving plasma display with better picture quality.

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New PDP cell structure for high luminous efficacy with low voltage driving

  • Jung, Hae-Yoon;Kim, Tae-Jun;Whang, Ki-Woong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.480-484
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    • 2006
  • We propose a new PDP cell structure named DIDE (Dual Ignition Discharge Electrodes) structure with a long electrode gap to realize a high luminous efficacy. Suggested DIDE structure basically has a long electrode gap $(200{\mu}m{\sim}400{\mu}m)$, nevertheless, because of auxiliary electrodes formed on the front panel, can be driven at relatively low voltage. The discharge characteristic of DIDE structure was much different from that of conventional structure, which was analyzed by IR emission images using IICCD (Image Intensified Charge Coupled Device). The study can explain some particular characteristics of DIDE structure. As a result, the long electrode gap and low voltage effect can be expected in DIDE structure, and a very high luminous efficacy of 7.5 lm/W has been achieved in monochrome green test panel adopting the new cell structure with Ne-Xe (12%) mixture at 400 torr.

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