한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Shielding Effectiveness of Mesh Screen Filter of Plasma Display Panel

  • Lim, Heon-Yong (Dept. of Radio Science and Communication Engineering, Hong-ik University) ;
  • Kim, Min-Seok (Dept. of Radio Science and Communication Engineering, Hong-ik University) ;
  • Lee, Jeong-Hae (Dept. of Radio Science and Communication Engineering, Hong-ik University)
  • Published : 2004.08.23
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Abstract

A shielding effectiveness of mesh screen filter of plasma display panel (PDP) has been calculated in this paper. Since the screen filter is located near the radiation source, the near field wave impedance of the radiation source, i.e., the PDP electrodes, has been considered to calculate the shielding effectiveness. The near field shielding effectiveness of screen filter at 30${\sim}$300 MHz has been estimated to be more than 65${\sim}$80 dB. The measured shielding effectiveness of screen filter is 10${\sim}$50 dB at 30${\sim}$300 MHz[1]. The resulting discrepancy indicates that there are other EMI emission sources such as emission from PCB and cable besides the PDP electrodes.

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