背光源為發光二極體之抬頭顯示器的設計與應用

目前市面上的電子產品皆以縮小體積為目標，而許多電子產品含有光學系統，因此，縮小光學系統所佔體積是相當重要的一個環節。我們可以利用反射式光學改變光軸方向而縮小光學系統的體積來達成目標，而反射式光學更有低色散、無像差等優點，適合運用在縮小系統體積上。另外，此光學系統需要極高亮度的背光源，我們用最近很熱門的白光發光二極體作為光源，且發光二極體具有高效率、壽命長、廣色域且價格便宜等優勢，利用此一光源使我們達成系統所需的亮度。本論文中以抬頭顯示器為主題，再分為影像系統以及背光源兩部分，這兩部分皆使用反射式及折射式光學。第一部分為如何使用單一訊號源達成一個同時具有抬頭顯示器與儀表板功能的可調式汽車抬頭顯示器系統。第二部分為，如何達成一個能使抬頭顯示器影像能清晰且亮度夠的背光源，且其背光源厚度不超過10mm。

關鍵字

抬頭顯示器；發光二極體；微透鏡；反射式光束整形器；液晶智慧薄膜；空間應用

並列摘要

Electronic products, almost with optical system, are tended to be downscale in current market. For this reason, it is important to shrink the dimension of optical system. By using reflective optics, we cannot only reduce the dimension but also decrease the effect of aberrations. Besides, we need high bright backlight source to construct the Head-up display (HUD) optical system. And we apply light-emitting diodes (LEDs) as the light source. The LEDs are very popular light sources currently because of their numerous advantages such as high efficiency, long life time, wide color gamut and cheap production costs [1]. Head-up display is the subject in this thesis, and we subdivide it into image system and backlight source. This system combines the refractive and reflective optics together. The first part is an adaptive head-up display (HUD) for automobile with functions of HUD system and instrument panel in only one source. The second part is a backlight source, less than 10mm in thickness, that makes the image of HUD brighter and clear.

並列關鍵字

Head-up display ； Light-emitting diode ； Microlens ； Reflective beam-shaper ； Smart film ； Space application

參考文獻

[1] SAMSUNG ELECTRONICS CO., LTD, “LED Backlight

[2] E. Fred Schubert [Light-Emitting Diodes], Cambridge, 94-97(2006)

[5] TracePro® [Cited; Available from http://www.lambdares.com/

[9] Robert E. Fischer, Biljana Tadic-Galeb and Paul R. Yoder, [Optical System Design], McGraw-Hill, Taiwan, 531-533 (2008).

[14] ZEMAX®. [cited; Available from http://www.zemax.com

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背光源為發光二極體之抬頭顯示器的設計與應用

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