US 2020/0051506 A1Published application

Pixel and display device including the same

AssigneeSamsung Display Co., Ltd.

InventorsTaehoon Yang, Jongchan Lee, Woonghee Jeong

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Abstract

A pixel, wherein: gates of second and fifth transistors receive a first gate signal; gates of third and fourth transistors respectively receive second and third gate signals; first terminals (FTs) of the second to fifth transistors respectively receive a data voltage, reference voltage, initialization voltage, and first power supply voltage (PSV); a second electrode of a second capacitor receives the first PSV; a second terminal (ST) of a light emitting element (LEE) receives a second PSV; a gate of a first transistor, STs of the second and third transistors, and a first electrode of a first capacitor are connected to a first node; STs of the first and fourth transistors, a FT of the LEE, and second and first electrodes respectively of the first and second capacitors are connected to a second node; and a ST of the fifth transistor is connected to a FT of the first transistor.

Claims20

Dependent claims

A pixel comprising:

a first transistor comprising a gate connected to a first node, a first terminal, and a second terminal connected to a second node;
a second transistor comprising a gate configured to receive a first gate signal, a first terminal configured to receive a data voltage, and a second terminal connected to the first node;
a third transistor comprising a gate configured to receive a second gate signal, a first terminal configured to receive a reference voltage, and a second terminal connected to the first node;
a fourth transistor comprising a gate configured to receive a third gate signal, a first terminal configured to receive an initialization voltage, and a second terminal connected to the second node;
a first capacitor comprising a first electrode connected to the first node, and a second electrode connected to the second node;
a second capacitor comprising a first electrode connected to the second node, and a second electrode configured to receive a first power supply voltage;
and
a light emitting element comprising a first terminal connected to the second node, and a second terminal configured to receive a second power supply voltage.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/656,873Filed 18 Oct 2019
Priority: KR 10-2017-01678187 Dec 2017
Published: 13 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G09G 3/3258
Using an active matrix: with pixel circuitry controlling the voltage across the light-emitting element
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
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

Family

Application16/034,359Continuation · filed 13 Jul 2018
Application16/656,873Continuation
US 10,482,821 B2Related patent
US 10,984,721 B2Related patent
US 2019/0180688 A1Published application
US 2020/0051506 A1This patent

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