Organic electroluminescent device and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsJihye SHIM, Jihwan YOON, Chang-ho LEE, Jinyoung YUN
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Abstract
An organic electroluminescent device includes a plurality of main pixels. Each of the main pixels includes red, green, and blue sub-pixels. Each of the sub-pixels includes a first electrode, a second electrode opposite to the first electrode, and an organic light emitting layer between the first and second electrode. The organic light emitting layer of each of the sub-pixels includes a blue light emitting layer and a green light emitting layer. Optical microresonator distances of the red, green, and blue sub-pixels are different from each other.
Claims24
An organic electroluminescent device comprising:
- a plurality of main pixels, each of the main pixels comprising a red sub-pixel, a green sub-pixel, and a blue sub-pixel,
- wherein each of the red sub-pixel, the green sub-pixel, and the blue sub-pixel comprises:
- a first electrode;
- a second electrode opposite to the first electrode;
- and
- an organic light emitting layer between the first electrode and the second electrode, the organic light emitting layer comprising a blue light emitting layer and a green light emitting layer,
- wherein one of the first electrode or the second electrode comprises a semitransparent material and an other one of the first electrode or the second electrode comprises a light reflection material, and
- wherein an optical microresonator distance is defined between the first electrode and the second electrode, the optical microresonator distance of one of the red sub-pixel, the green sub-pixel, or the blue sub-pixel is different from the optical microresonator distance of other ones of the red sub-pixel, the green sub-pixel, or the blue sub-pixel.
A method manufacturing an organic electroluminescent device, the method comprising:
- preparing a substrate having a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region;
- forming a first electrode on each of the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region;
- forming an organic light emitting layer comprising a blue light emitting layer and a green light emitting layer on the first electrode of each of the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region;
- and
- forming a second electrode on the organic light emitting layer of each of the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region,
- wherein one of the first electrode or the second electrodes comprises a semitransparent material, and an other one of the first electrode or the second electrode comprises a light reflection material.
Dependencies are inferred from the claim text.