Organic light emitting diode and method for manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsYoon-Hyun Kwak, Sun-Young Lee, Bum-Woo Park, Chang-Ho Lee, Se-Jin Cho, Jong-Hyuk Lee, Hee-Joo Ko
Life of this patent
Estimating the term…
Abstract
The present invention provides an organic light emitting diode comprising a substrate comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel; a first electrode disposed on the substrate; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode; and a first layer disposed between the first electrode and the second electrode and containing an ambipolar compound, and a method for manufacturing the organic light emitting diode.
Claims20
An organic light emitting diode, comprising:
- a substrate comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel;
- a first electrode disposed according to the first through third sub-pixels of the substrate;
- a second electrode facing the first electrode;
- an emission layer disposed between the first electrode and the second electrode;
- and
- a first layer disposed between the first electrode and the second electrode and containing an ambipolar compound, wherein
- the emission layer comprises a first emission layer formed in the first sub-pixel and emitting a first color light, a second emission layer formed in the second sub-pixel and emitting a second color light, and a third emission layer formed in the third sub-pixel and emitting a third color light, and
- the first layer is a single continuous common layer disposed throughout the first sub-pixel, the second sub-pixel, and the third sub-pixel, and comprises a first region disposed in the first sub-pixel, a second region disposed in the second sub-pixel, and a third region disposed in the third sub-pixel, wherein
- the first region is disposed between the first emission layer and the second electrode, and the third region is disposed between the third emission layer and the first electrode.
A method of manufacturing an organic light emitting diode, the method comprising:
- preparing a first electrode according to a first sub-pixel, a second sub-pixel, and a third sub-pixel, on a substrate comprising the first through third sub-pixels;
- preparing a first emission layer emitting a first color light on the first sub-pixel;
- after preparing the first emission layer, preparing a first layer comprising an ambipolar compound and being a single continuous common layer disposed throughout the first through third sub-pixels;
- and
- after preparing the first layer, preparing a third emission layer emitting a third color light in the third sub-pixel.
Dependencies are inferred from the claim text.