• 제목/요약/키워드: PDP, Image Sticking

검색결과 28건 처리시간 0.03초

Influence of Temporal and Permanent Image Sticking Characteristics Under Variable Panel Working Gas Pressure in 42-in. AC-PDPs

  • Park, Choon-Sang;Jang, Soo-Kwan;Kim, Jae-Hyun;Tae, Heung-Sik;Jung, Eun-Young;Ahn, Jung-Chull;Heo, Eun-Gi
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.1617-1620
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    • 2008
  • The effects of the temporal and permanent bright image stickings were examined under variable panel working gas pressure in the 42-in. ac-PDP with a high Xe (11 %) content. In the cells with and without temporal and permanent bright image stickings, the display luminance, firing voltage, and Vt closed curve were measured relative to the working gas pressure. With a decrease in the working gas pressure, the temporal bright image sticking was observed to be reduced, whereas the permanent bright image sticking was observed to be deteriorated.

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Experimental Study on Reduction of Temporal Dark Image Sticking on Bright Screen in AC-PDPs Using RF-Plasma Treatment on MgO layer

  • Park, Choon-Sang;Kim, Jae-Hyun;Tae, Heung-Sik
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.101-103
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    • 2009
  • Minimizing the residual impurity level on the MgO layer is the key factor for reducing temporal dark image sticking on bright screen. In this paper, to reduce the residual impurity level on the MgO layer of 50-in. full-HD ac-PDP with He (35%) - Xe (11%) contents, RF-plasma treatments on the MgO layer are adopted under various gases for plasma treatment. As a result of monitoring the difference in the display luminance between the before and after 5-min. sustain discharge with a square-type image at peak luminance, the Ar and Ar>$O_2$ plasma treatments can reduce the temporal dark image sticking on the bright screen in an ac-PDP.

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AC PDP의 배경광 잔상특성 (Characteristics of Image Sticking Observed During Background Display in AC-PDP)

  • 류재화;임성현;김동현;김중균;이호준;박정후
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제53권2호
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    • pp.91-96
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    • 2004
  • In darkroom condition, it was observed that a white picture pattern lasted several minutes leaves a recognizable trace in subsequent black background picture. Although this is not a serious problem for the most current public display or home TV applications, the image sticking should be minimized for future high quality multimedia display applications. In order to characterize this picture memory effect having relatively long time scale, spatially resolved luminance measurement and light waveform measurement have been performed. Pixels located at the outer boundary of white pattern previously displayed shows highest luminance. These cells also shows fastest ignition at the ramp up reset sequence. The luminance and ignition voltage differences between boundary cells and the other cells are increased with display duration and number of sustain-pulse. It is speculated that image sticking observed at the boundary cell is originated from the transport of charged particles and re-deposition of reactive species such as Mg, O provided from strong sustain discharge region.

AC PDP의 Image Sticking 현상에 관한 연구 (A Study on the Image Sticking Phenomenon in AC PDP)

  • 임성현;심경렬;김동현;이호준;박정후;김규섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1640-1643
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    • 2002
  • Image sticking, the phenomenon that the previously displayed pattern still remains after the image is changed into different image, is one of the most serious problem in realizing high picture quality. In this paper, we tried characterizing this undesirable feature in terms of the luminance and the intial firing voltage at ramp up time in reset period. It was found that the cell located at the boundary of previous image pattern show low firing voltage and high background luminance. And the results show that the degree of the image sticking is severely affected by discharge duration and the length of the sustain period.

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AC PDP의 high Xe%에서의 잔상연구 (The study on the image sticking in high Xe% of AC PDP)

  • 김영락;함명수;박미영;최정훈;이호준;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.9-11
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    • 2003
  • Image sticking, the phenomenon that the previously displayed pattern still remains after the image is changed into different image, is one of the most serious problem in realizing high picture quality. There are various methods decreasing the image sticking phenomenon. In this paper, we have tried to decrease boundary image sticking by reducing the discharge concentration phenomenon in the boundary of pattern using the new driving method that is applied to bias in the address electrode.

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Temporal Image Sticking Phenomena and Reducing Methods in AC PDP

  • Tae, Heung-Sik;Han, Jin-Won;Cho, Byung-Gwon;Chien, Sung-Il
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.176-179
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    • 2004
  • The effects of a temporal image sticking phenomenon on the subsequent dark and white background images are investigated in 42-inch PDP-TV and the reducing method is proposed In addition, the changes in luminance and temperature with an increase in time with the conventional and large sustain gap. The temporal dark image sticking was reduced considerably by decreasing background luminance and it was found that the temporal image sticking with large sustain gap was reduced when compared with the conventional sustain gap.

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AC PDP에서의 국부적 패널 온도 변화에 따른 경계 잔상 특징 (The characteristic of boundary image sticking as local temperature variation in panel)

  • 최우성;이지훈;장용민;유수복;이호준;김동현;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 추계학술대회 논문집 전기물성,응용부문
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    • pp.204-206
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    • 2005
  • Although intensive experiments have been performed to investigate the origin of boundary image sticking, one of major factors to determine display quality in AC PDP, it has not being reported clearly why it is occurred. The relationships between boundary image sticking and its possible origins such as phosphor degradation, temporal change of MgO layer, wall charge have been discussed. In this paper, we have analyzed characteristics of the boundary image sticking more clearly by the influence of local panel temperature.

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AC PDP의 경계잔상의 기초연구 (The basic study of boundary image sticking of AC PDP)

  • 김영락;이대성;김동현;이호준;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 하계학술대회 논문집 C
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    • pp.1680-1682
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    • 2003
  • In this study, we examine the effects of auxiliary pulse on the image sticking in ac PDP. A relatively low voltage square pulse applied to the address electrode before and after erasing period is found to be quite effective in reducing the line image sticking in the boundary between off and on block of full white pattern.

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AC PDP 경계잔상의 새로운 측정 방법자 개선 방안 (New measurement method for the boundary image sticking and improvement method.)

  • 최우성;장용민;최원영;이지훈;신중홍;박차수;이호준;박정후
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 C
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    • pp.2241-2243
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    • 2005
  • Although the boundary image sticking is one of major factors to determine display quality in AC PDP, a reliable measurement method has not reported so far. The boundary image sticking is recognized clearly by our eyes, but it is difficult to compare with adjacent cells by using a measurement method. However, the boundary image sticking can be analyzed by CCD DSLR camera method because this method can distinguish between the boundary cell and the adjacent cells. Moreover, we suggested new driving waveform for the reduction of the boundary image sticking.

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Influence of constraint MgO deposition onto phosphors on luminance properties in AC Plasma Display Panels

  • Jeoung, Jin-Man;OH, P.Y.;Moon, M.W.;Lee, J.H.;Jeong, J.E.;Lee, H.J.;Han, Y.K.;Lee, S.B.;Jeong, S.H.;Yoo, C.K.;Yoo, N.R.;Choi, E.H.;Ko, B.D.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.1215-1217
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    • 2005
  • One of the important problems in recent AC-PDP technology is the image sticking. In this research, we have investigated the PDP cell with constraint deposition MgO on phosphor, the electrical and optical properties in the PDP cell were examined. Also, we have investigated the correlation with image sticking and degraded MgO protective layer, phosphor in AC-PDP. As a result, we measured the secondary electron emission coefficient ${\gamma}$, discharge characteristics and Brightness for the constraint degraded phosphor are compared with those of nondegraded phosphor.

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