US 2023/0140902 A1Published application

Display device

AssigneeSamsung Display Co., Ltd.

InventorsYONGSUNG PARK, JIEUN CHOI

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Abstract

A display device includes: a light emitting element; a first driving transistor between a first node and the light emitting element; a second driving transistor between the first node and the light emitting element; a switching transistor between a data line and the first node; a first compensation transistor between a first control electrode of the first driving transistor and a second node, and configured to receive a first compensation scan signal; a second compensation transistor between a second control electrode of the second driving transistor and the second node, and configured to receive a second compensation scan signal; a first initialization transistor between the first control electrode of the first driving transistor and a first initialization voltage line; and a second initialization transistor between the second control electrode of the second driving transistor and a second initialization voltage line.

Claims26

Dependent claims

A display device comprising:

a display panel including a pixel, wherein the pixel includes:
a light emitting element;
a first driving transistor connected between a first node and the light emitting element;
a second driving transistor connected between the first node and the light emitting element;
a switching transistor connected between a data line and the first node, and configured to receive a first scan signal;
a first compensation transistor connected between a first control electrode of the first driving transistor and a second node, and configured to receive a first compensation scan signal;
a second compensation transistor connected between a second control electrode of the second driving transistor and the second node, and configured to receive a second compensation scan signal;
a first initialization transistor connected between the first control electrode of the first driving transistor and a first initialization voltage line, and configured to receive a second scan signal;
and
a second initialization transistor connected between the second control electrode of the second driving transistor and a second initialization voltage line, and configured to receive the second scan signal.

7 more elements

A display device comprising:

a display panel including a pixel, and configured to display an image during a plurality of frames;
and
a panel driver configured to drive the display panel,
wherein the pixel includes:
a light emitting element;
a first driving transistor connected between a first node and the light emitting element;
a second driving transistor connected between the first node and the light emitting element;
a switching transistor connected between a data line and the first node, and configured to receive a first scan signal;
a first compensation transistor connected between a first control electrode of the first driving transistor and a second node, and configured to receive a first compensation scan signal;
and
a second compensation transistor connected between a second control electrode of the second driving transistor and the second node, and configured to receive a second compensation scan signal, and
wherein the panel driver includes:
a scan driver configured to maintain the second compensation scan signal in an inactive state during a first frame of the plurality of frames and to maintain the first compensation scan signal in the inactive state during a second frame of the plurality of frames.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/977,983Filed 31 Oct 2022
Priority: KR 10-2021-01522818 Nov 2021
Published: 11 May 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 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 3/3266
Organic, e.g. using organic light-emitting diodes [OLED]: details of drivers for scan electrodes
G09G 2300/0819
Several active elements per pixel in active matrix panels: used for counteracting undesired variations, e.g. feedback or autozeroing