Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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EL Devices for LCD Backlight Based on ZnS:Cu Phosphor

혼합파우더 및 절연박막층을 이용한 PELD의 광학특성

  • 박수길 (충북대학교 공과대학 공업화학과) ;
  • 조성렬 (충북대학교 공과대학 공업화학과) ;
  • 전세호 (충북대학교 공과대학 공업화학과) ;
  • 엄재석 (충북대학교 공과대학 공업화학과) ;
  • 이주성 (충북대학교 공과대학 공업화학과)
  • Published : 1998.06.01
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Abstract

Electroluminescence is the light emission obtained by an electrical excitation energy passing through a phosphor under an applied high electrical field. EL are paid much attention on flat panel display as a backlight and indicator, which are divided into ACPRL(alternating-current powder electroluminescent) and ACTFEL(alternating-current powder electroluminescent). In this paper, Electric and emission properties on ACPEL are investigated based on ZnS:Cu phosphor. The basic structure on this is ITO glass/phosphor/insulator/ backelectrode, CR-M which has high efficiency on thermal properties and dielectric Properties was introduced and BaTiO$_3$ as a insulating layer in order to increase app1ied electric field on phosphor. Changing on Dielectric and emission Properties was caused by a different viscosity of binder which filled on space between phosphor particle. 60cd/$m^2$ under 60V, 2kHz sinusoidal was gotten from ACPELD prepared in this work.

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