Morgan, Lewis & Bockius LLP
Light-emitting diode and light-emitting device including the same
The present disclosure relates to a light-emitting diode (LED) in which an organic compound including an imidazolium-based cationic moiety and an amine-based anionic moiety substituted with a strong electron-withdrawing group such as a sulfonyl group or a cyano group is applied to a hole transfer layer, and a light-emitting device. By applying the organic compound according to the present disclosure to the hole transfer layer, an energy barrier between the hole transport layer and an emitting material layer is removed, and an LED having improved hole transport properties can be designed. Therefore, it is possible to realize and manufacture an LED and a light-emitting device, driven at a low voltage and having improved luminous efficiency.
LG Display Co., Ltd.
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Jong-Kwan Na-yeon Seung-Jae
Bin Lee Lee