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US 10,121,841 B2Granted
Display device, method of manufacturing the same, and electronic apparatus
AssigneeSony Corporation
InventorSeiichiro Jinta
Life of this patent
Estimating the term…
Abstract
There is provided a display device including: a light emitting element; and a drive transistor (DRTr) that includes a coupling section (W1) and a plurality of channel sections (CH) coupled in series through the coupling section (W1), wherein the drive transistor (DRTr) is configured to supply a drive current to the light emitting element.
Claims30
A display device comprising:
- a plurality of pixels, at least one of the plurality of pixels includes
- a light emitting element;
- a drive transistor configured to supply a drive current to the light emitting element, the drive transistor including a first channel region, the first channel region including
- a first portion of a semiconductor layer,
- a first gate electrode, and
- an electrically-conductive layer,
- wherein the first channel region is formed on a first insulating layer, and the electrically-conductive layer is formed between the first insulating layer and a substrate;
- a write transistor configured to transfer a pixel voltage corresponding to a luminance intensity of the light emitting element, the write transistor including a second channel region, the second channel region including
- a second portion of the semiconductor layer, and
- a second gate electrode,
- wherein the second channel region is formed on the first insulating layer;
- a first metal wiring in contact with the semiconductor layer via a first contact region;
- and
- a second metal wiring in contact with the semiconductor layer via a second contact region, the first channel region being within a current path between the first contact region and the second contact region,
- wherein the write transistor does not include any electrically-conductive layers between the first insulating layer and the substrate,
- wherein a first part of the current path overlaps with the electrically-conductive layer, and
- wherein a second part of the current path does not overlap with the electrically-conductive layer.
14 more elements
A display device comprising:
- a plurality of pixels, at least one of the plurality of pixels includes
- a light emitting element;
- a drive transistor configured to supply a drive current to the light emitting element, the drive transistor including a first channel region, the first channel region
- a first portion of a semiconductor layer,
- a first gate electrode, and
- an electrically-conductive layer,
- wherein the first channel region is formed on a first insulating layer, and the electrically-conductive layer is formed between the first insulating layer and a substrate;
- a write transistor configured to transfer a pixel voltage corresponding to a luminance intensity of the light emitting element, the write transistor including a second channel region, the second channel region including
- a second portion of the semiconductor layer, and
- a second gate electrode,
- wherein the second channel region is formed on the first insulating layer;
- a first metal wiring in contact with the semiconductor layer via a first contact region;
- and
- a second metal wiring in contact with the semiconductor layer via a second contact region, the first channel region being within a current path between the first contact region and the second contact region,
- wherein the write transistor does not include any electrically-conductive layers between the first insulating layer and the substrate,
- wherein, in a plan view, the semiconductor layer within the current path has a recess portion above the electrically-conductive layer, and
- wherein, in the plan view, the first contact region overlaps with the electrically-conductive layer, and
- wherein, in the plan view, the second contact region overlaps with the electrically-conductive layer.
15 more elements
Dependencies are inferred from the claim text.