Light-emitting diode and display apparatus and electronic device each including the light-emitting diode
AssigneesSamsung Display Co., Ltd., University-Industry Cooperation Group of Kyung Hee University
InventorsYeonhwa Lee, Min Chul Suh, Joongu Lee, Sungsoon Im, Seung Ju Ok
Life of this patent
Estimating the term…
Abstract
A display apparatus includes a light-emitting diode, the light-emitting diode including a first electrode on a substrate, an emission layer on the first electrode, an electron injection layer on the emission layer, an auxiliary layer on the electron injection layer, and a second electrode on the auxiliary layer, wherein the electron injection layer includes a first material, the auxiliary layer includes a second material, and a surface energy of the second material is greater than a surface energy of the first material.
Claims20
A light-emitting diode comprising:
- a first electrode;
- an emission layer on the first electrode;
- an electron injection layer on the emission layer;
- an auxiliary layer on the electron injection layer;
- and
- a second electrode on the auxiliary layer,
- wherein:
- the electron injection layer comprises a first material,
- the auxiliary layer comprises a second material, and
- a surface energy of the second material is greater than a surface energy of the first material.
A display apparatus comprising:
- a plurality of subpixels,
- wherein each of the plurality of subpixels comprises a light-emitting diode and at least one thin-film transistor,
- wherein the light-emitting diode comprises:
- a first electrode on a substrate;
- an emission layer on the first electrode;
- an electron injection layer on the emission layer;
- an auxiliary layer on the electron injection layer;
- and
- a second electrode on the auxiliary layer, and
- wherein:
- the electron injection layer comprises a first material,
- the auxiliary layer comprises a second material, and
- a surface energy of the second material is greater than a surface energy of the first material.
An electronic device comprising:
- a display apparatus comprising:
- a plurality of subpixels,
- wherein each of the plurality of subpixels comprises a light-emitting diode and at least one thin-film transistor,
- wherein the light-emitting diode comprises:
- a first electrode on a substrate;
- an emission layer on the first electrode;
- an electron injection layer on the emission layer;
- an auxiliary layer on the electron injection layer;
- and
- a second electrode on the auxiliary layer, and
- wherein:
- the electron injection layer comprises a first material,
- the auxiliary layer comprises a second material, and
- a surface energy of the second material is greater than a surface energy of the first material.
Dependencies are inferred from the claim text.