Display device having improved hole injection structure via the pixel electrode and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsHyun Eok Shin, Sung Joo Kwon
Life of this patent
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Abstract
A display device includes: a first pixel electrode disposed in a first emission area on a substrate and formed as multiple layers, an insulating layer covering an edge of the first pixel electrode, a first light emitting layer disposed on the first pixel electrode and the insulating layer, a first common electrode disposed on the first light emitting layer, a bank disposed on the insulating layer and surrounding the first emission area, and a first thin-film pattern disposed on the insulating layer and the bank in an adjacent area to the first emission area. An uppermost layer of the first pixel electrode and the first thin-film pattern include the same material.
Claims20
A display device comprising:
- a first pixel electrode disposed in a first emission area on a substrate and formed as multiple layers;
- an insulating layer covering an edge of the first pixel electrode;
- a first light emitting layer disposed on the first pixel electrode and the insulating layer;
- a first common electrode disposed on the first light emitting layer;
- a bank disposed on the insulating layer and surrounding the first emission area;
- and
- a thin-film pattern disposed on the insulating layer and the bank in an adjacent area to the first emission area,
- wherein an uppermost layer of the first pixel electrode and the thin-film pattern include the same material.
A method of manufacturing a display device, comprising:
- forming first and second pixel electrodes each including multiple layers on a substrate;
- sequentially stacking a sacrificial layer, an insulating layer, and a bank on the first and second pixel electrodes;
- forming a photoresist not overlapping the first pixel electrode on the bank in a plan view;
- etching the bank and the insulating layer using the photoresist as a mask;
- removing at least part of the sacrificial layer;
- additionally forming an uppermost layer of the first pixel electrode on the first pixel electrode and forming a thin-film pattern on the insulating layer and the bank;
- and
- forming a light emitting layer on the uppermost layer of the first pixel electrode and forming an organic pattern on the thin-film pattern.
Dependencies are inferred from the claim text.