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US 12,745,536 B2Granted
Light receiving element and electronic device including the same
AssigneeSamsung Display Co., Ltd.
InventorsDongkyu Seo, Junyong Shin, Seokgyu Yoon, Daeho Lee, Byungseok Lee, Jin-Soo Jung, Minsoo Choi
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Abstract
A light receiving element includes a first electrode, a hole transport region disposed on the first electrode, a light receiving layer disposed on the hole transport region and converting incident light to an electrical signal, an electron transport region disposed on the light receiving layer, and a second electrode disposed on the electron transport region. The light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound.
Claims21
A light receiving element comprising:
- a first electrode;
- a hole transport region disposed on the first electrode;
- a light receiving layer disposed on the hole transport region and converting incident light to an electrical signal;
- an electron transport region disposed on the light receiving layer;
- and
- a second electrode disposed on the electron transport region, wherein
- the light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound,
- the donor compound comprises one or more of a phthalocyanine compound, a perylene-based compound, or a squaraine dye compound, and
- the light receiving layer comprises:
- a p-dopant layer including a single layer comprising the p-dopant compound and the donor compound;
- and
- an active layer including the donor compound and the acceptor compound.
9 more elements
An electronic device comprising:
- a base layer;
- and
- a display element layer disposed on the base layer and including:
- a pixel definition film having an opening;
- and
- a light emitting element and a light receiving element divided by the pixel definition film, wherein
- each of the light emitting element and the light receiving element includes:
- a first electrode;
- a hole transport region disposed on the first electrode;
- an electron transport region disposed on the hole transport region;
- and
- a second electrode disposed on the electron transport region,
- the light emitting element includes a light emitting layer disposed between the hole transport region and the electron transport region,
- the light receiving element includes a light receiving layer disposed between the hole transport region and the electron transport region,
- the light receiving element converts incident light to an electrical signal,
- the light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound,
- the donor compound comprises one or more of a phthalocyanine compound, a perylene-based compound, or a squaraine dye compound, and
- the light receiving layer comprises:
- a p-dopant layer including a single layer comprising the p-dopant compound and the donor compound;
- and
- an active layer including the donor compound and the acceptor compound.
18 more elements
An electronic device comprising:
- a display module divided into a red light emitting region, a green light emitting region, a blue light emitting region, and a light receiving region spaced apart from each other on a plane, wherein
- the display module includes:
- a base layer;
- a display element layer disposed on the base layer and including:
- a light emitting element;
- and
- a light receiving element;
- and
- an input sensing layer disposed on the display element layer,
- the display element layer includes:
- a first electrode;
- a hole transport region disposed on the first electrode;
- an electron transport region disposed on the hole transport region;
- and
- a second electrode disposed on the electron transport region,
- the light emitting element includes a light emitting layer disposed between the hole transport region and the electron transport region, and overlapping only the red light emitting region, the green light emitting region, and the blue light emitting region,
- the light receiving element includes a light receiving layer disposed between the hole transport region and the electron transport region, and overlapping only the light receiving region,
- the light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound,
- the donor compound comprises one or more of a phthalocyanine compound, a perylene-based compound, or a squaraine dye compound, and
- the light receiving layer comprises:
- a p-dopant layer including a single layer comprising the p-dopant compound and the donor compound;
- and
- an active layer including the donor compound and the acceptor compound.
20 more elements
Dependencies are inferred from the claim text.