US 12,772,674 B2Granted

Display device

AssigneeSamsung Display Co., Ltd.

InventorsHaemin Kim, Youngwan Seo, Geunho Lee, Kyunghoon Chung

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Abstract

A display device includes a base layer, a first conductive layer disposed on the base layer, an inorganic layer disposed on the first conductive layer, a first semiconductor layer including an oxide semiconductor and disposed on the inorganic layer, and a first insulation layer disposed on the first semiconductor layer, a second semiconductor layer including an oxide semiconductor, and disposed on the first insulation layer, wherein the first conductive layer is a first electrode of a first capacitor, the first semiconductor layer is a second electrode of the first capacitor and a first electrode of a second capacitor, and the second semiconductor layer is a second electrode of the second capacitor.

Claims24

Dependent claims

A display device comprising:

a base layer;
a first conductive layer disposed on the base layer;
an inorganic layer disposed on the first conductive layer;
a first semiconductor layer disposed on the inorganic layer and including an oxide semiconductor, the first semiconductor layer comprises a (1-1)th semiconductor pattern layer including a source region, a drain region and a channel region;
a first insulation layer disposed on the first semiconductor layer, wherein the first insulation layer exposes entireties of upper surfaces of the drain region and the source region of the (1-1)th semiconductor pattern layer;
and
a second semiconductor layer including an oxide semiconductor and disposed on the first insulation layer, wherein:
the first conductive layer is a first electrode of a first capacitor;
the first semiconductor layer is a second electrode of the first capacitor and a first electrode of a second capacitor;
and
the second semiconductor layer is a second electrode of the second capacitor.

8 more elements

A display device comprising:

a display panel including a plurality of insulation layers and a pixel electrically connected to a first data line extended in a first direction and a first scan line extended in a second direction intersecting the first direction, wherein
the pixel includes:
a first capacitor electrically connected between a first node and a second node;
a light emitting diode including:
a first electrode electrically connected to the second node,
a second electrode electrically connected to a first voltage line that receives a first power voltage, and
a light emitting layer disposed between the first electrode and the second electrode;
a first transistor electrically connected between the second node and a second voltage line that receives a second power voltage, the first transistor including:
a source,
a drain,
a channel region, and
a gate electrically connected to the first node;
a second transistor electrically connected between the first data line and the first node;
a third transistor electrically connected between the first node and a third voltage line that receives a first voltage;
a fourth transistor electrically connected between the second node and a fourth voltage line that receives a second voltage;
a fifth transistor electrically connected between the second voltage line and the drain or the source of the first transistor;
and
a second capacitor electrically connected between the second voltage line and the second node,
the plurality of insulation layers include:
an inorganic layer,
a first insulation layer disposed on the inorganic layer, and
a second insulation layer disposed on the first insulation layer;
and
the display panel further includes a first conductive layer, a first semiconductor layer, and a second semiconductor layer,
the first conductive layer is a first electrode of the first capacitor and is disposed on a lower surface of the inorganic layer;
the first semiconductor layer is a second electrode of the first capacitor and a first electrode of the second capacitor and is disposed between the inorganic layer and the first insulation layer;
the second semiconductor layer is a second electrode of the second capacitor and is disposed on an upper surface of the second insulation layer;
and
each of the first semiconductor layer and the second semiconductor layer includes an oxide semiconductor.

26 more elements

A display device comprising:

a display panel including:
a plurality of insulation layers, and
a pixel electrically connected to a first data line extended in a first direction and a first scan line extended in a second direction intersecting the first direction, wherein the pixel includes:
a first capacitor electrically connected between a first node and a second node;
a light emitting diode including:
a first electrode electrically connected to the second node,
a second electrode electrically connected to a first voltage line that receives a first power voltage, and
a light emitting layer disposed between the first electrode and the second electrode;
a first transistor electrically connected between the second node and a second voltage line that receives a second power voltage, the first transistor including:
a source,
a drain,
a channel region, and
a gate electrically connected to the first node;
a second transistor electrically connected between the first data line and the first node;
a third transistor electrically connected between the first node and a third voltage line that receives a first voltage;
a fourth transistor electrically connected between the second node and a fourth voltage line that receives a second voltage;
a fifth transistor electrically connected between the second voltage line and the drain or the source of the first transistor;
and
a second capacitor electrically connected between the second voltage line and the second node,
the plurality of insulation layers include:
an inorganic layer,
a first insulation layer disposed on the inorganic layer, and
a second insulation layer disposed on the first insulation layer;
and
the display panel further includes:
a first conductive layer,
a first semiconductor layer,
a second semiconductor layer, and
a second conductive layer,
the first conductive layer is a first electrode of the first capacitor and is disposed on a lower surface of the inorganic layer;
the first semiconductor layer is a second electrode of the first capacitor and a first electrode of the second capacitor and is disposed between the inorganic layer and the first insulation layer;
the second semiconductor layer is disposed between the first insulation layer and the second insulation layer and disposed spaced apart from the first semiconductor layer in a plan view;
the second conductive layer is a second electrode of the second capacitor and is disposed on an upper surface of the second insulation layer;
and
each of the first semiconductor layer and the second semiconductor layer includes an oxide semiconductor.

32 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/347,014Filed 5 Jul 2023
Priority: KR 10-2022-011931521 Sep 2022
Published: US 2024/0099080 A121 Mar 2024
Granted: 20 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H10K 59/124
Active-matrix OLED [AMOLED] displays: insulating layers formed between TFT elements and OLED elements
H10K 59/1213
Characterised by the geometry or disposition of pixel elements: the pixel elements being TFTs
H10K 59/1216
Characterised by the geometry or disposition of pixel elements: the pixel elements being capacitors
H10K 59/131
Active-matrix OLED [AMOLED] displays: interconnections, e.g. wiring lines or terminals

Family

US 2024/0099080 A1Pre-grant publication · published 21 Mar 2024
US 12,772,674 B2This patent

From the US filing history. Foreign family members aren’t listed.

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