Accumulation and Decay Characteristics of Exoelectron Sources at MgO Protective Layer Surface in Alternating-Current Plasma Display Panels
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概要
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The accumulation and decay characteristics of exoelectron sources at a MgO protective layer surface in alternating-current plasma display panels (AC-PDPs) were investigated. The positively charged MgO surface provides a larger number of exoelectrons than the negatively charged surface, indicating that electrons trapped in shallow carrier traps coexist with trapped holes, and exoelectrons are emitted through Auger and/or photoionization processes after their recombination. The exoelectron sources are accumulated by sustain discharges and always decay. The half-life of the decay of the exoelectron sources is relatively long, of the order of a few tens of ms, confirming that the exoelectron emission property at the address discharge in a certain television (TV) field is strongly affected by sustain firings in the previous two TV fields or more. The effects of such a long-term decay of the exoelectron sources should be taken into consideration when designing the driving waveforms of AC-PDPs.
- 2010-08-25
著者
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Takai Yoshizo
Department Of Applied Physics Faculty Of Engineering Osaka University
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Nagatomi Takaharu
Department Of Applied Physics Osaka University
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Nishitani Mikihiko
Co-operation Laboratory of Panasonic, Osaka University, Suita, Osaka 565-0871, Japan
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Kosugi Naoki
3rd Device Development Group, AVC Devices Development Center, AVC Networks Company, Panasonic Corporation, Ibaraki, Osaka 567-0026, Japan
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Yoshino Kyohei
Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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Morita Yukihiro
3rd Device Development Group, AVC Devices Development Center, AVC Networks Company, Panasonic Corporation, Ibaraki, Osaka 567-0026, Japan
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Oue Toshiyasu
3rd Device Development Group, AVC Devices Development Center, AVC Networks Company, Panasonic Corporation, Ibaraki, Osaka 567-0026, Japan
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Kitagawa Masatoshi
3rd Device Development Group, AVC Devices Development Center, AVC Networks Company, Panasonic Corporation, Ibaraki, Osaka 567-0026, Japan
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