Organic light emitting diode
AssigneeSamsung Display Co., Ltd.
InventorsMyeong Suk Kim, Sung Wook Kim, Chang Woong Chu, Jin Soo Hwang, Sang Hoon Yim
Life of this patent
Estimating the term…
Abstract
The described technology relates to an organic light emitting diode including: a first electrode; a second electrode overlapping the first electrode; an organic emission layer between the first electrode and the second electrode; and a capping layer on the second electrode, wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm, thereby preventing degradation of the organic emission layer by blocking the light of the harmful wavelength region and providing the organic light emitting diode in which a blue emission efficiency is not deteriorated.
Claims37
A light emitting diode comprising:
- a first electrode;
- a second electrode overlapping the first electrode;
- an emission layer between the first electrode and the second electrode;
- and
- a capping layer on the second electrode,
- wherein the capping layer has an absorption rate of 0.25 or more for light having a wavelength of 405 nm.
A light emitting diode comprising:
- a first electrode;
- a second electrode overlapping the first electrode;
- an emission layer between the first electrode and the second electrode;
- and
- a capping layer on the second electrode,
- wherein the capping layer comprises a compound represented by the Chemical Formula A:
- A1 is
- R1 to R4 are each independently selected from
A light emitting diode comprising:
- a first electrode;
- a second electrode overlapping the first electrode;
- an emission layer between the first electrode and the second electrode;
- and
- a capping layer on the second electrode,
- wherein the capping layer satisfies:
- k1−k2>0.10
- wherein k1 is the absorption rate in the 405 nm wavelength, and k2 is the absorption rate in the 430 nm wavelength.
Dependencies are inferred from the claim text.