Samsung Display Co., Ltd. (Yongin-si, KR)

An organic light-emitting device comprises: a first electrode and a second electrode and an organic layer between the electrodes of the first and second, which is comprised of an emission layer, a mixed layer, and a hole transport region, the hole transport region is situated between the emission layer and the first electrode, and the mixed layer lies between the hole transport region and the emission layer and includes a first compound and a different compound, the first compound comprises an anthracene-based compound that is represented in Formula 1, and the second compound comprises an amine-based compound that is represented in Formula 2. Display apparatus comprises the organic light-emitting device.

1. Field

One or more embodiments deal with an organic light-emitting device and an apparatus for displaying the same.

2. Description of the Related Art

Organic light-emitting devices emit self-emitting devices with large viewing angles and high contrast, as well as quick response times and excellent qualities in terms of brightness as well as driving voltage , and speed. They also produce high-quality images.

One example of organic light-emitting devices is one that has a first electrode positioned on a substrate. The second electrode is sequentially placed on top of the first electrode. Holes emitted from the first electrode can be able to move towards the emission layer through the hole transport region and electrons emitted from the second electrode may be transported to the emission layer through the electron transport region.Carriers, such as electrons and holes, mix within the emission layer to produce excitons. These excitons move (e.g., transition or relax) from an excited state to a neutral state, which generates light.

Aspects of embodiments of the present disclosure offer an organic light-emitting device.

Additional features of embodiments will be set forth in part in the description which follows and, in part, will be evident from the description, or may be learned by application of the described embodiments.

A particular aspect of the present disclosure provides an organic light-emitting device including: a first electrode and a second electrode and an organic layer that is between the electrodes of the first and second the organic layer including an emission layer as well as a mixed layer and a hole transport area where the hole transport area is located between the emission layer and the first electrode, the mixed layer is between the region of transport for holes and the emission layer, and includes a firstcompound and second compound, wherein the first compound comprises an anthracene-based chemical represented by Formula 1 and the second compound includes an amine-based compound represented by Formula 2.

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