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  • 學位論文

車用顯示器背光模組散熱效能之實驗分析

Experimental Analysis of Thermal Performance for Automotive Backlight Modules

指導教授 : 李有璋

摘要


顯示器在汽車的應用上除了基本的導航功能之外,隨著車聯網、自駕車、影音娛樂的趨勢下,顯示器在汽車的應用上越來越多元化,將動全球車用顯示器市場需求持續成長。 車用顯示器的設計規格越來越高,包含高畫質、色彩飽和、大螢幕、外形輕薄化…等。這些高規格的設計皆會使背光模組顯示器內的發光源LED溫度提升,因此如何提升背光模組的散熱效益,是設計背光模組的重要課題。 本研究主要探討車用顯示器背光模組材料之散熱效益,在不影響背光模組結構強度、外形限制…等規格下,將同一片背光模組分別更換不同厚度的導熱膠帶和不同材質的背光背板,放入恆溫恆濕機內並且驅動螢幕畫面,在長時間高溫的環境下,使用熱電偶量測各材料組成模組後的LED溫度。此實驗結果可以為車用顯示器背光模組散熱效能設計做參考,提升背光模組的散熱效益。

並列摘要


Automotive display is not only used in the system of car navigation. The diversified applications go with the trend of internet of vehicle technology, autonomous vehicle, and automobile entertainment. The increasing demand also helps the growing of the automotive display market. The design specifications of automotive display are becoming rigorous, such as the sharpness presentation, color saturation, and panel downsizing solution. All of the above may lead to the overheating of the LED in the backlight module display. Therefore, how to design the backlight module to improve the heat dissipation efficiency is an important issue. The purpose of this study is to investigate the influence of materials of the backlight module on the thermal performance. Without affecting the structural strength and restriction of the appearance of the backlight modules, the different thickness of thermal tape and different materials of the metal frame were used. The modules were tested in the constant temperature and humidity machine to inspect the dissipation performance of each module.

參考文獻


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