使用荧光颜料实现白光LED的研究

Study of Achieving White Organic LED by Fluorescence Dye

研究了利用荧光颜料和InGaN蓝光芯片制成掺杂LED,根据光转换原理,得到白光LED的可能。文章首先对比了普通方法和二次点胶法封装的LED,表明二次点胶法工艺复杂,封装的LED亮度低,不适合LED的制造。其次对普通方法封装的1/1/100,1/1/200,2/1.5/100等不同重量比的ax-17/zq-13/AB胶有机LED实验,发现2/1.5/100的有机LED色坐标(0.32,0.30),接近等能白光点,相关色温6290K,接近日光,是一种比较理想的白光源。

Some hybrid organic LEDs are made by using fluorescence dye and InGaN blue-light chip and the possibility of achieving white organic LED is invesgated according to light conversion theory. Firstly, the LEDs made by normal method and double-dotting glue method are studied. It is found that the double-dotting glue method is too complex and the LEDs made by this way is low-luminance, so it isn＇ t fit to make LED. Secondly the different weight ratio of 1/1/100, 1/1/200, 2/1.5/100 ax-17/zq-13/AB LEDs are manufactured. The 2/1.5/100 LED＇s color coordinate is（0.32, 0.30）, approaching to white point and the correlative color temperature is 6290K which is close to sunlight. So it is a relatively ideal white lamp-house.