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

An organic light-emitting device includes an organometallic compound represented by M.sub.1(L.sub.1).sub.n1(L.sub.2).sub.n2, wherein L.sub.1 is a ligand represented by Formula 1-1: ##STR00001## In Formula 1-1, *1 to *4 indicate a binding site to M.sub.1, and Z.sub.11 and Z.sub.12 are respectively boron (B) and nitrogen (N), or N and B. When M.sub.1 connects to an .alpha.-position of the B or N atom, metal-ligand charge transfer in the compound may be enhanced. A OLED including the organometallic compound might have a long life with improved luminescent efficiency as well as the colorimetric accuracy.

1. Field

A variety of examples of embodiments of the present disclosure are related, in part, to an organometallic and organic light-emitting device comprising the same.

2. Description of the Related Art

Organic light-emitting devices (OLEDs) are self-emitting devices with wide viewing angles, high contrast ratios, and/or short response times. In addition, OLEDs may exhibit high luminance, driving voltage, and/or response speedcharacteristics, and may produce full-color images.

An example OLED comprises a first electrode placed on a substrate and may include holes, a region for transporting holes, an emission layer, an electron transport region and a second electrode that is sequentially placed on top of the first electrode. The holes provided by the first electrode can move towards the emission layer via the region of transport for holes, and electrons provided through the second electrode could move towards the emission layer via the electron transport region. Excitons can be generated when the carriers (such as holes and electrons) recombine in the emission layer. These excitons could change between an excited state and the ground state, generating light.

One or more of the example embodiments of the disclosed disclosure are directed at an organometallic compound and an organic light-emitting device comprising the same.

Additional aspects will also be described in the following description. These additional aspects can be obtained from the description or by practicing the embodiments described in the present description.

A variety of examples are given in the disclosure to show an organometallic compound represented by Formula 1.

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The first step to get your patent is to conduct a patent search. You can do a google patent search or do a USPTO search. Patent-pending is the name used to describe the product included in the patent application. It is possible to search the public pair to find the patent application. When the patent office has endorsed the patent application, you can perform a patent search to find the issued patent, and your product will now be patented. You can also utilize the USPTO search engine. Check out the following article for more information. For assistance, consult an attorney for patents. In the US, patents are granted by the US trademark and patent office or by the United States patent and trademark office, which also examines trademark applications.

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