Back to results
US 6,639,358 B2Granted
Organic electroluminescent device with buried lower elecrodes and method for manufacturing the same
AssigneeNEC Corporation
InventorsHitoshi Ishikawa, Etsuo Hasegawa
Life of this patent
Estimating the term…
Abstract
In an organic electroluminescent device, a plurality of striped grooves are formed on an insulating substrate along a first direction. A plurality of lower electrodes are substantially buried in the striped grooves. Organic layers are formed on the insulating substrate and the lower electrodes. A plurality of striped upper electrodes are formed on the organic layers along a second direction different from the first direction.
Claims19
An organic electroluminescent device comprising:
- an insulating substrate where a plurality of striped grooves are formed along a first direction;
- a plurality of lower electrodes each substantially buried in one of said striped grooves;
- an emitting layer formed on said insulating substrate and said lower electrodes;
- and
- a plurality of striped upper electrodes formed on said emitting layer along a second direction different from said first direction.
2 more elements
A method for manufacturing an organic electroluminescent device, comprising the steps of:
- forming a plurality of striped grooves in an insulating substrate along a first direction;
- forming a photoresist pattern layer having elements each formed on protrusions of said insulating substrate sandwiched by said grooves of said insulating substrate;
- depositing a conductive layer on said photoresist pattern layer and in said grooves of said insulating substrate by a sputtering process;
- performing a lift-off operation upon said photoresist pattern layer to remove said photoresist pattern layer and a first part of said conductive layer on said photoresist pattern layer, thereby leaving a second part of said conductive layer buried in said grooves of said insulating substrate as lower electrodes;
- forming an emitting layer on said insulating substrate and said lower electrodes;
- and
- forming a plurality of striped upper electrodes on said emitting layer along a second direction different from said first direction.
4 more elements
Dependencies are inferred from the claim text.