Samsung Display Co., Ltd.

Eunji Choi

Jahyun Im

Woosik Jeon

Sung Soo Lee

Seil Kim

Okkeun Song

Jungmin Moon

An organic electroluminescent device and display, the device including a first electrode; a second electrode on the first electrode; an emission layer between the first and second electrodes; and an electron transport layer between the emission layer and the second electrode, the electron transport layer including a first electron transport layer on the emission layer; a second electron transport layer on the first electron transport layer; and a third electron transport layer on the second electron transport layer, wherein the first electron transport layer includes a first electron transport material, the second electron transport layer includes the first electron transport material, a second electron transport material, and a third electron transport material, the third electron transport layer includes the second electron transport material and the third electron transport material, and the first, second, and third electron transport materials are different from one another.

Organic electroluminescent device and display including the same

An organic light-emitting device includes a first electrode and a second electrode facing the first electrode. An organic layer is between the first electrode and the second electrode. The organic layer includes an emission layer. A hole transport region is between the first electrode and the emission layer. A first auxiliary layer is between the hole transport region and the emission layer. The first auxiliary layer includes a first compound represented by Formula 1. 

Organic light emitting device

An organic light emitting device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region. The electron transport region includes an electron transport layer provided on the emission layer, a first mixed electron transport layer provided on the electron transport layer, and a second mixed electron transport layer provided on the first mixed electron transport layer. The first mixed electron transport layer includes a first electron transport compound and a second electron transport compound different from the first electron transport compound mixed at a first ratio. The second mixed electron transport layer includes the first electron transport compound and the second electron transport compound mixed at a second ratio different from the first ratio.

Organic light emitting device and display device having the same

An organic light emitting display (OLED) device includes: an insulating substrate; a first electrode on the insulating substrate; a second electrode on the first electrode; a light-emitting layer between the first electrode and the second electrode; a hole common layer between the first electrode and the light-emitting layer; an electron common layer between the second electrode and the light-emitting layer; and a scattering layer on the insulating substrate and having a non-planar surface, wherein the scattering layer includes at least one of benzene, naphthalene, anthracene, tetracene, pentacene, amine, benzidine, biphenyl, carbazole, pyridine, bipyridine, imidazole, phenanthroline, phenylborane, pyrimidine, or triazine, and the base material of the scattering layer includes a substituent including at least one of a benzoyl group, a carboxyl group, an aminophenoxyl group, a tricabonate group, or a styryl group.

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Bucheon-si, South Korea

Eunji Choi