고휘도 후막 전계발광소자에 관한 연구

A Study on Powder Electroluminecscent Device for High Brightness

  • 오주열 (원광대학교 전기전자공학부) ;
  • 이종찬 (원광대학교 전기전자공학부) ;
  • 박대희 (원광대학교 전기전자공학부)
  • Oh, Joo-Youl (School of Electrical and Electronic Engineering, Wonkwang University) ;
  • Lee, Jong-Chan (School of Electrical and Electronic Engineering, Wonkwang University) ;
  • Park, Dae-Hee (School of Electrical and Electronic Engineering, Wonkwang University)
  • 발행 : 1998.07.20

초록

Electroluminescence is occurred when phosphor is located in electric field. Object of this research show new type of powder electroluminescent device (PELD) for high brightness compared with conventional PELD. New type of PELD structured as follow ITO/phosphor + dielectric/Silver paste). To investigate optical properties of PELDs, EL spectrum, CIE coordinate system, Brightness of PELDs was measured. The suitable ratio between phosphor and dielectric in new type of PELD was 7:3(phosphor:dielectric). At 200 V 400 Hz, new type of PELD which had ratio of 7:3 was 5700 cd/$m^2$.

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