The present invention provides light-emitting devices having excellent characteristics and electronic devices having excellent characteristics, having such light-emitting devices. Specifically, the present invention provides a light-emitting device includes a first light-emitting element, a second light-emitting element, and a third light-emitting element which emit light having different color from each other. The first light-emitting element includes a first anode; a first cathode; and a first light-emitting layer and a second light-emitting layer between the first anode and the first cathode, wherein the first light-emitting layer includes a first high light-emitting substance and a first organic compound, and the second light-emitting layer includes the first high light-emitting substance and a second organic compound, wherein the first light-emitting layer is in contact with the first anode side of the second light-emitting layer, and wherein the first organic compound is an organic compound having a hole-transporting property and the second organic compound is an organic compound having an electron-transporting property. The second light-emitting element includes a second anode; a second cathode; and a third light-emitting layer and a layer for controlling carrier transfer between the second anode and the second cathode, wherein the third light-emitting layer includes a second high light-transmitting substance, wherein the layer for controlling carrier transfer includes a third organic compound and a fourth organic compound, and is provided between the third light-emitting layer and the second cathode, wherein the third organic compound is an organic compound having an electron-transporting property and the fourth organic compound is an organic compound having an electron-trapping property; and wherein the third organic compound is included more than the fourth organic compound in the layer for controlling carrier transfer. The third light-emitting element includes a third anode; a third cathode; and a fourth light-emitting layer, wherein the fourth light-emitting, layer includes a fifth organic compound, a sixth organic compound, and a third high light-emitting substance, wherein the fifth organic compound is an organic compound having a hole-transporting property, and the sixth organic compound is an organic compound having an electron-transporting property, and wherein the third high light-emitting substance is a substance which emits phosphorescence.
本发明提供了具有优异特性的发光器件,以及具有这种发光器件的优异特性的电子设备。具体地说,本发明提供了一种发光器件,包括第一发光元件、第二发光元件和第三发光元件,它们发出的光的颜色彼此不同。第一发光元件包括一个第一阳极;一个第一阴极;以及位于第一阳极和第一阴极之间的第一发光层和第二发光层,其中第一发光层包括第一高发光物质和第一有机化合物,第二发光层包括第一高发光物质和第二有机化合物、其中,第一发光层与第二发光层的第一阳极侧接触,第一有机化合物是具有空穴传输特性的有机化合物,第二有机化合物是具有电子传输特性的有机化合物。第二发光元件包括第二阳极、第二阴极和第三发光层;以及第三发光层和用于控制第二阳极和第二阴极之间载流子传输的层,其中第三发光层包括第二高透光物质,其中用于控制载流子传输的层包括第三有机化合物和第四有机化合物,并设置在第三发光层和第二阴极之间,其中第三有机化合物是具有电子传输特性的有机化合物,第四有机化合物是具有电子捕获特性的有机化合物;其中第三种有机化合物比第四种有机化合物更多地包含在控制载流子传输的层中。第三发光元件包括第三阳极、第三阴极和第四发光层,其中第四发光层包括第五有机化合物、第六有机化合物和第三高发光物质,其中第五有机化合物是具有空穴传输特性的有机化合物,第六有机化合物是具有电子传输特性的有机化合物,第三高发光物质是发出
磷光的物质。