本論文提出一種六角形結合四角形的新型雙曲率微透鏡陣列，應用於提升有機發光二極體（OLED）之發光效能。首先利用光學軟體（TracePro）進行分析，比較六角形、六角形結合三角形、八角形結合四角形和六角形結合四角形微透鏡陣列對OLED發光效能之提升，變異參數包括高徑比、直徑和高度。結果顯示在高徑比0.2時，軸向光強為六角形結合四角形＞六角形結合三角形＞八角形結合四角形＞六角形；高徑比0.4時，六角形結合三角形＞六角形＞六角形結合四角形＞八角形結合四角形；高徑比0.6時，八角形結合四角形＞六角形＞六角形結合四角形＝六角形結合三角形；高徑比0.8時，則八角形結合四角形＞六角形＞六角形結合四角形＞六角形結合三角形，由此可知新型雙曲率微透鏡在低高徑比時佔有優勢。另外，直徑為120μm的微透鏡陣列在相同面積下，由於顆數較多，相較於直徑150μm和180μm，可得到更佳的軸向光強增益。
實驗部分，本研究先採用熱融法製作帶有間隙的微透鏡陣列，再藉由重複旋塗法，以達到高填充率的微透鏡陣列模型，接著透過PDMS翻模，即得到高徑比為0.1的六角形結合四角形微透鏡陣列薄膜。最後將製作完成之薄膜用光學顯微鏡、掃描式電子顯微鏡和三維表面輪廓儀作量測，以確認製作的雙曲率微透鏡之外型。

The study has presented a new type of dual-curvature microlens array which shapes is composed of square and hexagon. It is used to enhance the luminous efficacy of organic light emitting diode (OLED).
At first, the optical software was used to simulation in order to compare the microlens array of enhanced the luminous efficacy of OLED. The lens shapes include hexagon, composed of hexagon and triangle, composed of octagon and square and composed of hexagon and square. The variability of parameters include high aspect ratio, diameter and height. The results showed the relation of height ratio and luminance. The height ratio is 0.2 : 6+4 > 6+3 > 8+4 > 6; the height ratio is 0.4 : 6+3 > 6 > 6+4 > 8+4; the height ratio is 0.6 : 8+4 > 6 > 6+4 = 6+3; the height ratio is 0.8 : 8+4 > 6 > 6+4 > 6+3. Thus, the new type of dual-curvature microlens array had advantage in lower height ratio. Otherwise, the luminous efficacy of the 120μm diameter was better than other in the same area because of more microlens.
In the experiment, the photoresist reflow was used to fabricate the microlens array with gap. Next, by repeating the spin coating method, the gapless microlens array mold was finished. Then, the film of the high fill factor microlens array could be obtained through the PDMS mold. Moreover, its height ratio is 0.1. Finally, the measurement of microlens array utilized optical microscopic, scanning electron microscope and 3D profiler in order to confirm geometry contour and size.

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