US 8,803,133 B2Granted

Organic light emitting diode device

AssigneeSamsung Display Co., Ltd.

InventorsYong-Tak Kim, Won-Jong Kim, Ji-Young Choung, Joon-Gu Lee, Jin-Baek Choi, Kyu-Hwan Hwang, Il-Soo Oh, Jong-Hyuk Lee

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Abstract

An organic light emitting diode device includes a first electrode, a second electrode, and an emission layer disposed between the first and second electrodes. The first electrode includes a first layer and a second layer. The first layer includes ytterbium (Yb), samarium (Sm), lanthanum (La), yttrium (Y), calcium (Ca), strontium (Sr), cesium (Cs), ruthenium (Ru), barium (Ba), or a combination thereof and having a thickness ranging from about 40 to 200 Å. The second layer includes silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), or a combination thereof and having a thickness ranging from about 100 to 250 Å.

Claims6

Dependent claims

An organic light emitting diode device comprising;

a first electrode;
a second electrode facing the first electrode;
and
an emission layer disposed between the first and second electrodes,
wherein the first electrode comprises:
a first layer having a thickness ranging from about 40 Å to 200 Å and comprising ytterbium (Yb), samarium (Sm), lanthanum (La), yttrium (Y), strontium (Sr), cesium (Cs), ruthenium (Ru), barium (Ba), or a combination thereof, and
a second layer having a thickness ranging from about 180 Å to 250 Å and comprising silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), or a combination thereof,
with the first electrode having a sheet resistance of about 5 Ω/cm2 or lower.

5 more elements

Dependencies are inferred from the claim text.