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US 12,615,923 B2Granted
Organic light-emitting display apparatus and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsHun Kim, Hyo-Jeong Kwon, Moon-Won Chang, Won-Kyu Choe
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Abstract
An organic light-emitting display apparatus includes a transistor on a substrate. The transistor includes a gate electrode, a first electrode, and a second electrode. The apparatus also includes a protective layer over the first electrode and including a first portion that contacts the second electrode, and an organic light-emitting device having a pixel electrode electrically connected to the second electrode.
Claims20
An organic light-emitting display apparatus, comprising:
- a substrate;
- a transistor on the substrate, the transistor including a gate electrode, a first electrode, and a second electrode;
- a first insulating layer between the gate electrode and the first and second electrodes;
- a first protective layer on the first insulating layer on the gate electrode, a first portion of the first protective layer directly contacting the first electrode and a second portion of the first protective layer directly contacting the second electrode;
- an organic light-emitting device having a pixel electrode electrically connected to the second electrode and an emission layer on the pixel electrode;
- a second insulating layer between the transistor and the pixel electrode;
- and
- a second protective layer between the second insulating layer and the pixel electrode, the second protective layer including an inorganic material,
- wherein a top surface of the first protective layer is co-planar with a top surface of at least one of the first electrode and the second electrode, and
- the second insulating layer is thicker than the first protective layer and the second protective layer, and
- wherein the pixel electrode is directly connected to the second electrode through a contact hole included in the second insulating layer, and an entire portion of the second protective layer is separated from the second electrode.
8 more elements
A pixel, comprising:
- a substrate;
- a transistor on the substrate;
- a planarization layer on and over the transistor;
- a light emitter that includes a pixel electrode and is disposed on the planarization layer, a portion of the pixel electrode disposed in a direction parallel to a main surface of the substrate, the portion of the pixel electrode being spaced apart from the transistor by a space defined at least in part by the planarization layer, and an emission layer disposed on the pixel electrode;
- and
- at least one protective layer including a protective layer that includes a non-conductive material, the protective layer being directly disposed on the planarization layer, and being disposed between the planarization layer and the light emitter, the at least one protective layer further including another protective layer that extends only between source and drain electrodes of the transistor as seen in a side view, wherein
- the protective layer includes an inorganic material, and
- when force is applied to the pixel electrode of the light emitter in a direction towards the space, the protective layer contacts the pixel electrode of the light emitter so as to block the source electrode of the transistor from being electrically connected to the source electrode of the transistor via the pixel electrode of the light emitter.
5 more elements
An organic light-emitting display apparatus, comprising:
- a substrate;
- a transistor on the substrate and including a gate electrode, a first electrode, and a second electrode, the first electrode and the second electrode including a metal;
- a first protective layer made of an insulating material that directly contacts the second electrode and is disposed only in a region between the first electrode and the second electrode as seen in a side view with a top surface of the first protective layer extending as high as a top surface of at least one of the first electrode and the second electrode;
- a second protective layer over the first electrode;
- a second insulating layer disposed between the first protective layer and the second protective layer;
- and
- an organic light-emitting device having a pixel electrode electrically connected to the second electrode and an emission layer on the pixel electrode,
- wherein the pixel electrode is directly connected to the second electrode through a contact hole included in the second insulating layer, and an entire portion of the second protective layer is separated from the second electrode.
5 more elements
Dependencies are inferred from the claim text.