Product category: Heatsinks and Thermal Management
News Release from: GrafTech International
Edited by the Electronicstalk Editorial Team on 3 March 2005
Samsung opts for
graphite-based thermal management
Samsung SDI is to manufacture its large screen plasma display panels using eGraf SpreaderShield natural graphite thermal heat spreaders
Samsung SDI is to manufacture its large screen plasma display panels using eGraf SpreaderShield natural graphite thermal heat spreaders to eliminate potential hot spot problems and improve temperature uniformity across the screen. The high thermal conductivity of SpreaderShield heat spreader allows the heat generated in the display to be moved quickly resulting in a lower and more even operating temperature and improved performance and reliability.
This article was originally published on Electronicstalk on 3 March 2005 at 8.00am (UK)
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Potential hot spot problems can arise in plasma displays when an image remains static for a significant time period.
This occurs most often when playing video games, displaying static information on the screen or using the screen as a computer monitor.
Varying temperature profiles across the screen can also lead to uneven picture brightness over time.
For Samsung SDI, SpreaderShield heat spreader material has replaced traditional silicone materials in its entire 37 to 63in range of plasma display panels.
Samsung SDI supplies these panels to Samsung Electronics and other manufacturers for use in plasma televisions.
'Silicone and acrylic materials, which are typically used on plasma display screens, have very low thermal conductivity of around 1W/mK, compared with SpreaderShield material with thermal conductivity that can be tailored in the range of 240-500W/mK'.
'The high thermal conductivity of the SpreaderShield heat spreader is the primary reason why the temperature of the screen is lowered', said GrafTech's Dr Julian Norley, Director of Technology, Electronic Thermal Management.
'In addition, SpreaderShield heat spreaders weigh 45% less than these materials'.
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