한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Using Natural Graphite Heat Spreaders to Increase CCFL LCD Operating Temperatures

  • Norley, Julian (Electronic Thermal Management, GrafTech Intl. Ltd.) ;
  • Shives, Gary D. (Electronic Thermal Management, GrafTech Intl. Ltd.) ;
  • Reis, Brad (Electronic Thermal Management, GrafTech Intl. Ltd.) ;
  • Schober, John (Electronic Thermal Management, GrafTech Intl. Ltd.)
  • Published : 2007.08.27
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Abstract

A natural graphite heat spreader increased the upper operating temperature limit of a CCFL backlit LCD television. A 0-80W heat source was used to simulate additional electronics. Without the heat spreader, internal circuitry shut-down at ${\sim}30;$ no shut-down occurred above 80W with a heat spreader. Additionally, brightness, temperature uniformity, and operating ranges were improved, verified by environmental chamber performance testing at various ambient conditions.

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