US 2014/0151663 A1Published application

Organic electroluminescence device

AssigneeSamsung Display Co., Ltd.

InventorMitsuhiro KASHIWABARA

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Abstract

An organic EL device having a red light emitting area and a green light emitting area is provided. Each of the red light emitting area and the green light emitting area has a structure such that a first electrode having a light transmitting characteristic and an organic layer formed on the first electrode are stacked, and a second electrode having a light reflecting characteristic is disposed on the organic layers of the red and green light emitting areas. Reflectance of green light by the second electrode in the red light emitting area is smaller than reflectance of green light in the second electrode of the green light emitting area. Reflectance of red light by the second electrode of the red light emitting area is larger than reflectance of red light by the second electrode of the green light emitting area.

Claims9

Dependent claims

An organic EL device comprising:

a red light emitting area including a first red electrode having a light transmitting characteristic and an organic layer, the first red electrode and the organic layer being stacked;
a green light emitting area including a first green electrode having a light transmitting characteristic and an organic layer, the first green electrode and the organic layer being stacked;
and
a second electrode on the organic layer of the red light emitting area and on the organic layer of the green light emitting area, the second electrode having a light reflecting characteristic,
wherein reflectance of green light by the second electrode of the red light emitting area is smaller than reflectance of green light by the second electrode of the green light emitting area;
and
wherein reflectance of red light by the second electrode of the red light emitting area is larger than reflectance of red light by the second electrode of the green light emitting area.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/092,327Filed 27 Nov 2013
Priority: JP 2012-26366630 Nov 2012
Published: 5 Jun 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H10K 59/35
Devices specially adapted for multicolour light emission: comprising red-green-blue [RGB] subpixels
H10K 59/805
Constructional details: electrodes
H10K 59/8052
Electrodes: cathodes
H10K 59/878
Arrangements for extracting light from the devices: comprising reflective means

Family

US 9,147,714 B2Related patent
US 2014/0151663 A1This patent

From the US filing history. Foreign family members aren’t listed.

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