Lg Electronics Inc.

Lg Display Co., Ltd.

Sung Kab Kim

Myung Seop Kim

Chun Gun Park

Jong Geun Yoon

Young Soo Han

Jae Man Lee

Jae Woo Kyung

Sae Tae Park

Hyung Yun Oh

Kyung Hoon Lee

Jeong Dae Seo

Jung Keun Kim

Hyun Cheol Jeong

Hong Gyu Kim

Joong Hwan Yang

An organic EL device is disclosed, which has an organic multilayer between a first electrode and a second electrode, the organic multilayer comprising a hole injection layer formed on the first electrode, and formed of a mixture of at least one selected from organic materials and at least one selected from inorganic materials; a hole transport layer having at least one layer on the hole injection layer; and an emitting layer formed on the hole transport layer.

Organic el device

An organic electroluminescence device is disclosed, to realize improvement of luminance and decrease on driving voltage, which includes an anode, a hole injecting layer, a hole transport layer, an emitting layer, and a cathode, wherein, the hole injecting layer and the hole transport layer are formed of the material expressed by the following chemical formula 1: 

Organic electroluminescence device

Provided is an organic EL device having a lower power consumption and high performance and enabling to display separate pictures on bidirectional screens as well as to display the same picture on the bidirectional screens, and a driving apparatus thereof. The organic EL device includes: a first organic EL panel for a unidirectional display; and a second organic EL panel for a unidirectional display, each of the first and second organic EL panels having a substrate, a first electrode, an emitting layer and a second electrode, wherein the first organic EL panel and the second organic EL panel are coupled so as to display pictures in bidirections. According to the present invention, a sufficient brightness can be obtained even under a low power. Also, since an opaque cathode is used, performance and transmittance are enhanced compared with the related art organic EL device using a transparent cathode.

Organic electroluminescent device and driving apparatus

Organic EL device

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Seoul, South Korea

Sung Kab Kim