Inorganic light emitting display with field emission layer
View Patent ↗An inorganic light emitting display including: a first electrode; a second electrode facing the first electrode; a light emitting layer disposed between the first electrode and the second electrode; and an field emission layer disposed between the light emitting layer and the second electrode.
1. An inorganic light emitting display, comprising:
a first electrode;
a second electrode disposed in opposition to the first electrode;
a light emitting layer comprising quantum dots, disposed between the first electrode and the second electrode; and
a field emission layer comprising carbide-derived carbon, disposed between the light emitting layer and the second electrode, the field emission layer accelerating electrons supplied from the second electrode,
wherein:
the field emission layer directly contacts the second electrode;
the light emitting layer directly contacts the field emission layer; and
the first electrode directly contacts the light emitting layer.
2. The inorganic light emitting display of claim 1 , wherein the first electrode is an anode and the second electrode is a cathode.
3. The inorganic light emitting display of claim 1 , wherein the light emitting layer comprises an inorganic material.
4. The inorganic light emitting display of claim 1 , wherein the field emission layer further includes an oxidized porous silicon, or a boron nitride bamboo shoot (BNBS).
5. The inorganic light emitting display of claim 1 , wherein the carbide-derived carbon is formed using as a carbon precursor selected from the group consisting of a diamond-like carbide, a metal-like carbide, a salt-like carbide, a complex carbide, and a carbonitride.
6. The inorganic light emitting display of claim 5 , wherein the diamond-like carbide comprises SiC or B 4 C.
7. The inorganic light emitting display of claim 5 , wherein the metal-like carbide comprises TiC or ZrC x .
8. The inorganic light emitting display of claim 5 , wherein the salt-like carbide comprises AI 4 C 3 or CaC 2 .
9. The inorganic light emitting display of claim 5 , wherein the complex carbide comprises Ti x Ta y C or Mo x W y C.
10. The inorganic light emitting display of claim 5 , wherein the carbonitride comprises TiN x C y or ZrN x C y .
11. The inorganic light emitting display of claim 1 , wherein the quantum dots comprise:
a CdSe core;
a ZnS shell surrounding the core; and
trioctylphosphine oxide (TOPO) caps structurally supporting the core and the shell.
12. The inorganic light emitting display of claim 1 , wherein the light emitting layer further comprises one selected from the group consisting of ZnS; SrS;
CaS; CaGa 2 S 4 ,SrGa 2 S 4 , Mn, Ce, Tb, Eu, Tm, Er, Pr, and Pb.