Organic light emitting display device

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• first and second electrodes facing each other on a substrate;
• a first emission portion on the first electrode;
• and
• a second emission portion on the first emission portion,
• wherein the first emission portion includes a green emitting layer and a red emitting layer, and the second emission portion includes a dark blue emitting layer,
• wherein the red emitting layer is disposed in a range of 20 nm to 50 nm from the first electrode, the green emitting layer is disposed in a range of 25 nm to 60 nm from the first electrode, and the dark blue emitting layer is disposed in a range of 120 nm to 160 nm from the first electrode,
• wherein the first emission portion includes a first hole transport layer and a first electron transport layer, and the second emission portion includes a second hole transport layer and a second electron transport layer, and
• wherein the first hole transport layer is between the first electrode and the red emitting layer, and the first electron transport layer is between the green emitting layer and the second hole transport layer.

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• organic layers between the first electrode and the second electrode, the organic layers including a first emission portion on the first electrode and a second emission portion on the first emission portion,
• wherein the first emission portion includes a first hole transport layer, a dark blue emitting layer, and a first electron transport layer,
• wherein the second emission portion includes a second hole transport layer, a green emitting layer, a red emitting layer, and a second electron transport layer,
• wherein the red emitting layer is closer to the second electrode than the green emitting layer,
• wherein the organic layers have a thickness in the range of 320 nm to 350 nm, and
• wherein the first hole transport layer is between the first electrode and the red emitting layer, and the first electron transport layer is between the green emitting layer and the second hole transport layer.

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• first and second electrodes facing each other on a substrate;
• a first emission portion on the first electrode;
• and
• a second emission portion on the first emission portion,
• wherein the first emission portion includes a dark blue emitting layer, and the second emission portion includes green emitting layer and a red emitting layer,
• wherein the dark blue emitting layer is disposed in a range of 120 nm to 160 nm from the first electrode, the green emitting layer is disposed in a range of 170 nm to 200 nm from the first electrode, and the red emitting layer is disposed in a range of 200 nm to 230 nm from the first electrode,
• wherein the first emission portion includes a first hole transport layer and a first electron transport layer, and the second emission portion includes a second hole transport layer and a second electron transport layer, and
• wherein the first hole transport layer is between the first electrode and the red emitting layer, and the first electron transport layer is between the green emitting layer and the second hole transport layer.

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• organic layers between the first electrode and the second electrode, the organic layers including a first emission portion on the first electrode and a second emission portion on the first emission portion,
• wherein the first emission portion includes a first hole transport layer, a yellow-green emitting layer, a red emitting layer, and a first electron transport layer,
• wherein the second emission portion includes a second hole transport layer, a blue emitting layer, and a second electron transport layer,
• wherein the yellow-green emitting layer is closer to the first electrode than the red emitting layer,
• wherein the organic layers have a thickness in the range of 200 nm to 240 nm, and
• wherein the first hole transport layer is between the first electrode and the yellow-green emitting layer, and the first electron transport layer is between the red emitting layer and the second hole transport layer.

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• organic layers between the first electrode and the second electrode, the organic layers including a first emission portion on the first electrode and a second emission portion on the first emission portion,
• wherein the first emission portion includes a first hole transport layer, a yellow-green emitting layer, a red emitting layer, and a first electron transport layer,
• wherein the second emission portion includes a second hole transport layer, a blue emitting layer, and a second electron transport layer,
• wherein the yellow-green emitting layer is closer to the first electrode than the red emitting layer,
• wherein the organic layers have a thickness in the range of 340 nm to 370 nm, and
• wherein the first hole transport layer is between the first electrode and the yellow-green emitting layer, and the first electron transport layer is between the red emitting layer and the second hole transport layer.

An organic light emitting display device, comprising:

• first and second electrodes facing each other on a substrate;
• and
• first and second electrodes facing each other on a substrate;
• a first emission portion on the first electrode;
• and
• a second emission portion on the first emission portion,
• wherein the first emission portion includes a yellow-green emitting layer, and a red emitting layer, and the second emission portion includes a blue emitting layer,
• wherein the yellow-green emitting layer is disposed in a range of 30 nm to 60 nm from the first electrode, the red emitting layer is disposed in a range of 50 nm to 90 nm from the first electrode, and the blue emitting layer is disposed in a range of 120 nm to 160 nm from the first electrode,
• wherein the first emission portion includes a first hole transport layer and a first electron transport layer, and the second emission portion includes a second hole transport layer and a second electron transport layer, and
• wherein the first hole transport layer is between the first electrode and the yellow-green emitting layer, and the first electron transport layer is between the red emitting layer and the second hole transport layer.