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US 10,950,817 B2Granted
Lighting apparatus using organic light emitting diode having conductive layer with high resistance on substrate
AssigneeLG Display Co., Ltd.
InventorsJongMin Kim, Jungeun Lee, Youngkyun Moon
Life of this patent
Estimating the term…
Abstract
A lighting apparatus has improved aperture ratio by changing auxiliary lines in a lattice shape into a line shape. In addition, a conductive layer having a high resistance is formed on the entire surface to control excessive current due to a short circuit, and an island-shaped anode is formed in the emission zone to reduce the resistance in the pixel, thereby preventing the luminance from being lowered.
Claims17
A lighting apparatus using organic light-emitting diodes, comprising:
- a conductive layer disposed on a substrate;
- auxiliary lines arranged on the conductive layer as a line shape;
- a plurality of anodes disposed in respective emission zones between the auxiliary lines and including a conductive material having a resistance lower than that of the conductive layer,
- wherein the plurality of anodes are disposed between the conductive layer and an organic light emitting layer and all bottom surfaces of the plurality of anodes are in direct contact with a top surface of the conductive layer;
- a passivation layer disposed on the auxiliary lines to cover the auxiliary lines and in an emission area except the emission zones;
- the organic light emitting layer and a cathode disposed in the emission area of the substrate,
- wherein an area of the top surface of the conductive layer is larger than that of a top surface of the organic light emitting layer;
- and
- a metal film disposed in the emission area of the substrate.
6 more elements
A lighting apparatus using organic light-emitting diodes, comprising:
- a conductive layer disposed on a substrate;
- first auxiliary lines arranged in a direction;
- a second auxiliary line disposed between the first auxiliary lines and connected to ends of the first auxiliary lines;
- a plurality of anodes disposed in respective emission zones between the first and second auxiliary lines and including a conductive material having a resistance lower than that of the conductive layer,
- wherein the plurality of anodes are disposed between the conductive layer and an organic light emitting layer and all bottom surfaces of the plurality of anodes are in direct contact with a top surface of the conductive layer;
- a passivation layer disposed on the first and second auxiliary lines to cover the auxiliary lines and in an emission area except the emission zones:
- the organic light emitting and a cathode disposed in the emission area of the substrate,
- wherein an area of the top surface of the conductive layer is larger than that of a top surface of the organic light emitting layer;
- and
- a metal film disposed in the emission area of the substrate.
7 more elements
Dependencies are inferred from the claim text.