US 2026/0038428 A1Published application

Electronic device comprising display comprising subpixels each comprising at least two leds

AssigneeSamsung Electronics Co., Ltd.

InventorsYongkoo HER, Kiwoo KIM, Seoungyong PARK, Hongkook LEE, Euntaek JANG

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Abstract

An electronic device is provided. The electronic device includes display driving circuitry, and a display panel, wherein a subpixel in the display panel includes a plurality of light-emitting diodes (LEDs) comprising a first LED and a second LED, a driving transistor including a first gate electrode configured to obtain a data voltage, a first drain, and a first source electrode, a first light-emitting control transistor comprising a second gate electrode, a second source electrode connected to the first drain, and a second drain electrode connected to an anode of the first LED among the plurality of LEDs. a second emission control transistor including a third gate electrode, a third source electrode connected to the first drain, and a third drain electrode connected to an anode electrode of the second LED among the plurality of LEDs.

Claims20

Dependent claims

An electronic device comprising:

display driver circuitry;
and
a display panel,
wherein a sub-pixel in the display panel includes:
a plurality of light emitting diodes (LEDs) including a first LED and a second LED,
a driving transistor including a first gate electrode configured to obtain a data voltage, a drain electrode, and a first source electrode,
a first emission control transistor including a second gate electrode, a second source electrode connected to the first drain electrode, and a second drain electrode connected to an anode electrode of the first LED from among the LEDs, and
a second emission control transistor including a third gate electrode, a third source electrode connected to the first drain electrode, and a third drain electrode connected to an anode electrode of the second LED from among the LEDs, and
wherein the display driver circuitry is configured to:
in a first emission interval in a time interval corresponding to a refresh rate, provide a first emission signal to the second gate electrode to provide, using the driving transistor, a current according to the data voltage to the first LED from among the LEDs, and
in a second emission interval in the time interval subsequent to the first emission interval, provide a second emission signal to the third gate electrode to provide, using the driving transistor, the current to the second LED from among the LEDs.

8 more elements

An electronic device comprising:

a display panel including sub-pixels,
wherein each of the sub-pixels includes:
a driving transistor including a gate electrode configured to obtain a data voltage, a source electrode configured to obtain a driving voltage, and a drain electrode, and
a plurality of light emitting diodes (LEDs) including:
a first LED including a first anode electrode connected to a node connectable to the drain electrode, and a first cathode,
a second LED including a second anode electrode connected to the first cathode, and a second cathode,
a third LED including a third anode electrode connected to the node and disconnected from the first cathode, and a third cathode, and
a fourth LED including a fourth anode electrode connected to the third cathode and disconnected from the first cathode, and a fourth cathode.

5 more elements

An electronic device comprising:

a display panel including sub-pixels,
wherein each of the sub-pixels includes:
a driving transistor including a gate electrode configured to obtain a data voltage, a source electrode configured to obtain a driving voltage, and a drain electrode, and
a plurality of light emitting diodes (LEDs) including:
a first LED including a first anode electrode connected to a node connectable to the drain electrode, and a first cathode,
a second LED including a second anode electrode connected to the first cathode, and a second cathode,
a third LED including a third anode electrode connected to the node and disconnected from the first cathode, and a third cathode connected to the first cathode and connected to the second anode electrode, and
a fourth LED including a fourth anode electrode connected to the third cathode, connected to the first cathode, and connected to the second anode electrode, and a fourth cathode.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/351,544Filed 7 Oct 2025
Priority: KR 10-2023-006236715 May 2023
Published: 5 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G09G 3/32
Using electroluminescent panels: semiconductive, e.g. using light-emitting diodes [LED]
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
G09G 2300/0426
Structural details of the set of electrodes: layout of electrodes and connections
G09G 2300/0443
Pixel structures: with several sub-pixels for the same colour in a pixel, not specifically used to display gradations