Display apparatus using oxide diode
AssigneeSamsung Electronics Co., Ltd.
InventorsKyoungkook Kim, Youngsoo Park, Jaechul Park
Life of this patent
Estimating the term…
Abstract
Provided may be a display apparatus that uses oxide diodes having a nano rod structure, for example, nano-rod diodes formed of a ZnO group material. The display apparatus may include a substrate, a thin film transistor layer on the substrate, and a light emitting layer on the thin film transistor layer, wherein the light emitting layer may include a plug metal layer on the thin film transistor layer, a plurality of nano-rod diodes vertically formed on the plug metal layer, and a transparent electrode on the nano-rod diodes.
Claims15
A display apparatus comprising:
- a substrate;
- a thin film transistor layer on the substrate;
- and
- a light emitting layer on the thin film transistor layer,
- wherein the light emitting layer includes:
- a plug metal layer on the thin film transistor layer;
- a plurality of nano-rod diodes substantially vertically erected on the plug metal layer, the plurality of nano-rod diodes being spaced apart from each other;
- and
- a transparent electrode on the plurality of nano-rod diodes,
- wherein each of the plurality of nano-rod diodes includes a lower layer portion doped with a first type dopant, an upper layer portion doped with a second type dopant which is opposite to the first type, and a non-doped region between the lower layer portion and the upper layer portion, and
- wherein the lower and upper layer portions of the nano-rod diode are formed of a doped ZnO group or a doped MgZnO group material, and the non-doped region of the nano-rod diode is formed of a non-doped ZnO group material.
A display apparatus comprising:
- a plug metal layer;
- a plurality of nano-rod diodes substantially vertically erected on the plug metal layer, the plurality of nano-rod diodes being spaced apart from each other;
- a reflection layer for reflecting light emitted from the plurality of nano-rod diodes on an upper surface of the plug metal layer between the plurality of nano-rod diodes;
- an insulating layer on an upper surface of the reflection layer and between the plurality of nano-rod diodes;
- a transparent electrode on the insulating layer and on the plurality of nano-rod diodes;
- and
- a phosphor layer on the transparent electrode,
- wherein the plurality of nano-rod diodes emit ultraviolet (UV) ray region light and
- the phosphor layer transforms the UV ray region light emitted from the plurality of nano-rod diodes into visible light region light.
A display apparatus comprising:
- a plug metal layer;
- a plurality of nano-rod diodes substantially vertically erected on the plug metal layer, the plurality of nano-rod diodes being spaced apart from each other;
- a transparent electrode on the plurality of nano-rod diodes;
- and
- a reflection layer for reflecting light emitted from the plurality of nano-rod diodes on an upper surface of the plug metal layer between the plurality of nano-rod diodes,
- wherein lower surfaces of the plurality of nano-rod diodes are in direct contact with the plug metal layer, and the reflection layer is in contact with side surfaces of the plurality of nano-rod diodes.
Dependencies are inferred from the claim text.