LG Display Co., Ltd.
Organic light-emitting display device

Abstract:

One embodiment of the present disclosure provides an organic light-emitting element corresponding to each pixel region. The organic light-emitting element includes a hole transport layer, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, a fourth light-emitting layer, and an electron transport layer. The first light-emitting layer includes a first dopant corresponding to a first color and a first host. The second light-emitting layer includes a second dopant corresponding to a second color different from the first color and a second host different from the first host. The third light-emitting layer includes the first dopant and the second host, and the fourth light-emitting layer includes the second dopant and the second host.