螢光玻璃陶瓷材料、其製造方法及包括其的發光裝置

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

106134425

專利證號

I 657064

專利獲證名稱

螢光玻璃陶瓷材料、其製造方法及包括其的發光裝置

專利所屬機關 (申請機關)

中原大學

獲證日期

2019/04/21

技術說明

本技術為中原大學與聯合大學透過科技部能源計畫聯合開發之成果，主要是開發兼具低特性溫度及高光學性質之硼酸鹽玻璃，此系列玻璃藉由功能性元素(鉍、鋅、鈉、鉀)添加，有效地將玻璃轉換溫度(Tg)、玻璃軟化溫度(Td)降低至500 oC 以下，光學性質上，其折射率達1.8以上，穿透率於可見光波段(390至780nm)達70%以上，於LED照明封裝上具備相當良好之特性。而目前市售之LED多以環氧樹脂及矽樹脂進行封裝，於高功率系統下將面臨老化及黃化等相關問題，因而降低其發光效率，若以此玻璃取代環氧樹脂及矽樹脂作為LED封裝材料，將可有效提升其熱穩定性及光學特性。此螢光玻璃陶瓷片未來有機會推廣到LED封裝廠、面板廠以及螢光粉的製造廠商，未來可用在照明與顯示以及高功率LED的相關產品。目前廠商實測結果顯示，透過藍光晶片與黃色螢光玻璃陶瓷片，可高達到~150 lm/W的流明效率，未來極具應用潛力! The invention is to develop the borate glass systems with low characteristic temperatures and high optical properties. The glass transition(Tg) and softened(Td) temperatures can be reduced to (below) 500 oC by the addition of the function elements such as Bi, Zn, Na and K. The optical properties such as refractive index were greater than 1.8 and transmittance were higher than 70% in the visible region. The developed glass systems have excellent properties, therefore can be applied on the LED lighting package. Currently, the commercial LEDs were encapsulated by epoxy resin and/or silicone, and suffered aging and yellowing problems causing significant degeneration in luminous efficiency in high power system. The replacement of epoxy resin and silicone by the developed borate, phosphate glasses as LED packaging materials would effectively enhance the thermal stability and optical properties.

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