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    • 4. 发明授权
    • Organic electroluminescent device
    • 有机电致发光器件
    • US06906457B2
    • 2005-06-14
    • US10320546
    • 2002-12-17
    • Young Woo SongHitoshi YamamotoTakeo WakimotoChang Hee Ko
    • Young Woo SongHitoshi YamamotoTakeo WakimotoChang Hee Ko
    • H05B33/14H01L51/52H01J1/62
    • H01L51/5262Y10T428/24942
    • An organic electroluminescent display (EL) device including a substrate, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, sequentially stacked, wherein assuming that the sum of a geometric thickness of the electron transport layer, a geometric thickness of the light emitting layer is denoted by l1, the l1 with a maximum of luminance is denoted by a peak_l1, the sum of a geometric thickness of the hole transport layer and a geometric thickness of the transparent electrode is denoted by l2, the geometric thickness of the hole transport layer is denoted by d(HTL), the d(HTL) with a maximum or minimum of luminance is denoted by a peak_d(HTL), the l1 is set to have an maximum of luminance and l2 is set such that a thickness distribution according to colors of red, green and blue at the peak_l2 is within the range of 30 nm, respectively.
    • 依次层叠有包括基板,透明电极,空穴传输层,发光层,电子传输层和阴极的有机电致发光显示装置(EL)装置,其中假定电子传输的几何厚度之和 层,发光层的几何厚度由l 1表示,具有最大亮度的l1由peak_11表示,空穴传输层的几何厚度和透明电极的几何厚度之和 由l 2表示,空穴传输层的几何厚度由d(HTL)表示,亮度最大或最小的d(HTL)由peak_d(HTL)表示,l 1设置为具有 亮度的最大值和l2被设定为使得根据peak_l 2处的红色,绿色和蓝色的颜色的厚度分布分别在30nm的范围内。