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    • 5. 发明授权
    • Light emitting device
    • 发光装置
    • US07402948B2
    • 2008-07-22
    • US10422380
    • 2003-04-24
    • Shunpei YamazakiSatoshi SeoHideaki Kuwabara
    • Shunpei YamazakiSatoshi SeoHideaki Kuwabara
    • H05B33/00
    • H01L27/3279H01L27/322H01L27/3246H01L27/3248H01L27/3251H01L27/3258H01L33/50H01L51/5218H01L51/5228H01L51/5234H01L51/5253H01L51/5262H01L51/5271H01L2251/5315
    • Not all of light generated in the light emitting layer comprising the organic material are taken out in the desirable direction. For example, light emitted in the lateral direction (the direction parallel to the substrate face) is not taken out and therefore is a loss. An object of the present invention is to provide a light emitting device structured so as to increase the amount of light which is taken out in a certain direction after emitted from a light emitting element, as well as a method of manufacturing this light emitting device.In the present invention, an upper end portion of an insulating material 19 that covers an end portion of a first electrode 18 is formed to have a curved surface having a radius of curvature, a second electrode 23a is formed to have a slant face as going from its center portion toward its end portion along the curved surface. Light emitted from a light emitting layer comprising an organic material 20 that is formed on the second electrode 23a is reflected at the slant face of the second electrode 23a to increase the total amount of light taken out in the direction indicated by the arrow in FIG. 1A.
    • 在包含有机材料的发光层中产生的光不是全部在所期望的方向上被取出。 例如,在横向(平行于基板面的方向)发出的光不被取出,因此是损失。 本发明的目的在于提供一种发光装置,其特征在于,在发光元件发光后,能够增加从特定方向取出的光量,以及制造该发光元件的方法。 在本发明中,覆盖第一电极18的端部的绝缘材料19的上端部形成为具有曲率半径的曲面,第二电极23a形成为具有倾斜面,如 沿其弯曲表面从其中心部分向其端部延伸。 从包含形成在第二电极23a上的有机材料20的发光层发射的光在第二电极23a的倾斜面被反射,以增加沿箭头所示方向取出的光的总量 1A
    • 10. 发明申请
    • LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME
    • 发光装置及其制造方法
    • US20090298377A1
    • 2009-12-03
    • US12538563
    • 2009-08-10
    • Shunpei YamazakiSatoshi SeoHideaki Kuwabara
    • Shunpei YamazakiSatoshi SeoHideaki Kuwabara
    • H01J9/02
    • H01L27/3206H01L27/322H01L27/3246H01L27/3276H01L51/5209H01L51/5218H01L51/5221H01L51/5228H01L51/5234H01L51/5237H01L51/524H01L51/5253H01L51/5271H01L2251/5315
    • All lights generated in an organic compound layer are not taken out towards a TFT from a cathode as a transparent electrode. For instance, the light is emitted in a lateral direction (direction parallel to the substrate surface) but the light emitted in the lateral direction is not taken out resultantly, which leads to a loss. Therefore, a light emitting device structured so as to increase the amount of light taken out in a certain direction is provided as well as a method of manufacturing this light emitting device. As a result of etching treatment, an upper edge portion of an insulator (19) is curved to have a radius of curvature, a slope is formed along the curved face while partially exposing layers (18c and 18d) of a first electrode, and a layer (18b) of the first electrode is exposed in a region that serves as a light emitting region. Light emitted from an organic compound layer (20) is reflected by the slope of the first electrode (layers 18c and 18d) to increase the total amount of light taken out in the direction indicated by the arrow in FIG. 1A.
    • 在有机化合物层中产生的所有光不从作为透明电极的阴极朝向TFT取出。 例如,光在横向方向(平行于基板表面的方向)发射,但是在横向方向上发射的光不会被取出,导致损失。 因此,提供了构造成增加沿某一方向取出的光量的发光器件以及制造该发光器件的方法。 作为蚀刻处理的结果,绝缘体(19)的上边缘部分被弯曲成具有曲率半径,沿着弯曲面形成斜面,同时部分地暴露第一电极的层(18c和18d),并且 第一电极的层(18b)暴露在用作发光区域的区域中。 从有机化合物层(20)发射的光被第一电极(层18c和18d)的斜率反射,以增加沿图1中箭头所示方向取出的光的总量。 1A。