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    • 6. 发明公开
    • 발광 장치 및 전자 장치
    • 发光装置和电子装置
    • KR1020070003693A
    • 2007-01-05
    • KR1020060060956
    • 2006-06-30
    • 가부시키가이샤 한도오따이 에네루기 켄큐쇼
    • 노무라료지세오사토시이와키유지스기사와노조무
    • H05B33/14H05B33/26
    • H01L27/326H01L51/5052H01L51/5092H01L51/5265
    • A light emitting element and a light emitting device are provided to lower power consumption and improve color purity without appearance of an adverse effect such as reduction in voltage and luminance efficiency. A light emitting device includes a light emitting element having a pair of electrodes, and a layer containing an organic compound interposed between the pair of electrodes. The layer containing an organic compound has a light emitting layer containing a light emitting substance, and buffer layers(401-1,401-2) having a composite material containing an organic compound of a hole transporting property and a metal compound. One of the pair of electrodes is an electrode having high reflectance and the other is a translucent electrode. An optical distance between the pair of electrodes is an integral multiple of half of a maximum wavelength of light extracted from the light emitting element.
    • 提供发光元件和发光器件以降低功耗并提高色纯度,而不会出现诸如降低电压和亮度效率的不利影响。 发光器件包括具有一对电极的发光元件和插入在该对电极之间的含有有机化合物的层。 含有有机化合物的层具有含有发光物质的发光层和具有含有空穴传输性有机化合物的复合材料的缓冲层(401-1401-2)和金属化合物。 一对电极中的一个是具有高反射率的电极,另一个是透光性电极。 一对电极之间的光学距离是从发光元件提取的光的最大波长的一半的整数倍。