• Title/Summary/Keyword: Boundary image sticking

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Prohibition of Boundary Image Sticking in AC Plasma Display Panel Using Vacuum Sealing Method

  • Tae, Heung-Sik;Park, Choon-Sang;Kwon, Young-Kuk;Heo, Eun-Gi;Lee, Byung-Hak
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1688-1691
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    • 2007
  • This paper shows that the boundary image sticking can be prohibited completely by using the vacuum sealing process, which means that the residual impurities such as nitrogen or oxygen can be a critical factor inducing the boundary image sticking. The production of boundary image sticking was checked in the test panel fabricated by the $N_2$ or $O_2$ flow during the vacuum sealing process. As a result, the boundary image sticking did not appear in the case of $N_2flow$, whereas the boundary image sticking was observed in the case of $O_2$ flow even though the test panel was fabricated by the vacuum sealing process.

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

  • Choi, Woo-Sung;Jang, Yong-Min;Choi, Won-Young;Lee, Ji-Hoon;Shin, Jung-Hong;Park, Cha-Soo;Lee, Ho-Jun;Park, Chung-Hoo
    • Proceedings of the KIEE Conference
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    • 2005.07c
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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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The characteristic of boundary image sticking as local temperature variation in panel (AC PDP에서의 국부적 패널 온도 변화에 따른 경계 잔상 특징)

  • Choi, Woo-Sung;Lee, Ji-Hoon;Jang, Yong-Min;Yoo, Sue-Bok;Lee, Ho-Jun;Kim, Dong-Hyun;Park, Chung-Hoo
    • Proceedings of the KIEE Conference
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    • 2005.11a
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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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Characteristics of Image Sticking Observed During Background Display in AC-PDP (AC PDP의 배경광 잔상특성)

  • 류재화;임성현;김동현;김중균;이호준;박정후
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.53 no.2
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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.

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

  • Kim, Young-Rak;Ham, Myung-Soo;Park, Mi-Young;Choi, Jung-Hoon;Lee, Ho-Jun;Park, Chung-Hoo
    • Proceedings of the KIEE Conference
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    • 2003.10a
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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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A Study on the Image Sticking Phenomenon in AC PDP (AC PDP의 Image Sticking 현상에 관한 연구)

  • Lim, Sung-Hyun;Shim, Kyoung-Ryul;Kim, Dong-Hyun;Lee, Ho-Joon;Park, Chung-Hoo;Kim, Gyu-Seob
    • Proceedings of the KIEE Conference
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    • 2002.07c
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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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The basic study of boundary image sticking of AC PDP (AC PDP의 경계잔상의 기초연구)

  • Kim, Young-Rak;Lee, Dae-Sung;Kim, Dong-Hyun;Lee, Ho-Jun;Park, Jung-Hu
    • Proceedings of the KIEE Conference
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    • 2003.07c
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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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