本研究主要目標為探討硬式與軟式高分子材質導光板的設計與製程，其目的為改善現有導光板技術的品質與降低成本。在硬式導光板部分，有別於傳統擴散點的V溝或噴墨網點結構，本研究採用黃光製程將微結構製作於PMMA基板的上表面。在利用曝光強度、光罩尺寸與形狀等參數調整來改變微結構形貌後，出光均齊度在多組自製導光板試片使用一片擴散膜與兩片交疊增亮膜後約82% ~ 89 %，相較於相同量測條件市售參考組80.2 %的數值約高出2 ~ 9個百分點，如圖4-29與4-30所示。而多組整體出光亮度相較於同樣量測條件市售參考組亦高出3 ~ 10個百分點，如圖4-35至4-37所示。本文並藉電鑄翻模技術大量複製成品，降低導光板單位成本，增加商業價值。在軟式導光板部分則使用可撓式的光纖，配合二氧化碳雷射製作出表面微刻痕，破壞光的全反射而形成導光板。研究更進一步利用雷射製作具有傾斜角度微刻痕的軟式導光板，用來改變出光角度。完成之光纖導光板未使用任何光學膜片之前均齊度即高達80.1 %，出光效率則達77.6 %。成品具有可撓的特性，可運用在未來軟式顯示器的背光源或是軟性光源之用途，亦可藉著設計微刻痕排列的角度變化，將此導光板應用於廣視角、雙視角螢幕等特殊的用途。

In order to improve the quality of light-guide plate and to reduce the cost, the purpose of this research is to discuss the design and production of light-guide plate, which is made of hard and soft polymer materials. In case of hard light-guide plate, the microstructures formation on the PMMA plate of upper surface made by photolithography technology was different from conventional V-cut or printing method. The adjusting of shape, size and exposure of mask can change the appearance of microstructures. The uniformity in light-guide plate sample using one diffusive sheet and two crossed BEF increase about 82% ~ 89 %. This uniformity is higher 2~9 percentage than reference of the commercial products in the same measurement condition (figure 4-29, 4-30). Brightness in multiple sample is higher 3~10 percentage than reference of the commercial products in the same measurement condition (figure 4-35, 4-37). Also the LIGA-Like process was use to produce metal model products, it could be produce in bulk, as far suitable for commercial purpose. In case of soft light-guide plate, CO2 laser was used to ablation optical fibers clad for scattering of light in the light-guide plate. Furthermore, the light-guide plate has slant microstructures so that the light emitting angle can be modify. The final design of light-guide plate is flexible that with 80.1 % uniformity and 77.6 % of efficiency, and can apply to display or light source that are flexible. Furthermore, light-guide plate can be designed by the variation of microstructures angle for special purpose, such as wide-view-angel and bi-view-angle LCDs.

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