Display device

Patent metadata

Field	Value
Publication number	US-2025104635-A1
Application number	US-202418893421-A
Country	US
Kind code	A1
Filing date	Sep 23, 2024
Priority date	Sep 27, 2023
Publication date	Mar 27, 2025
Grant date	—

Abstract

A display device includes a substrate including first to N-th pixel circuit areas, where N is a natural number greater than 1 disposed in a first direction, an initialization voltage line disposed on the substrate, the initialization voltage line extending in a second direction, intersecting the first direction, and overlapping one of the first to N-th pixel circuit areas, a driving voltage line disposed on the substrate, the driving voltage line extending in the second direction, and adjacent to the initialization voltage line in the first direction, and a data line disposed on the substrate, the data line extending in the second direction, and spaced apart from the initialization voltage line in the first direction with the driving voltage line disposed between the data line and the initialization voltage line.

First claim

What is claimed is:

1 . A display device comprising:
a substrate including first to N-th pixel circuit areas disposed in a first direction, where Nis a natural number greater than 1; an initialization voltage line disposed on the substrate, the initialization voltage line extending in a second direction intersecting the first direction, and overlapping one of the first to N-th pixel circuit areas; a driving voltage line disposed on the substrate, the driving voltage line extending in the second direction, and adjacent to the initialization voltage line in the first direction; and a data line disposed on the substrate, the data line extending in the second direction, and spaced apart from the initialization voltage line in the first direction with the driving voltage line disposed between the data line and the initialization voltage line.

2 . The display device of claim 1 , further comprising:
first to N-th pixel circuits disposed in the first to N-th pixel circuit areas, respectively, wherein each of the first to N-th pixel circuits includes:
a driving transistor which provides a driving current;
a first switching transistor which provides a data voltage to the driving transistor; and
a second switching transistor which provides an initialization voltage to the driving transistor.

3 . The display device of claim 2 , wherein a gate electrode of the first switching transistor and a gate electrode of the second switching transistor receive a same signal.

4 . The display device of claim 2 , wherein
the driving voltage line overlaps each of the first to N-th pixel circuit areas, and the driving voltage line overlapping the (N-1)-th pixel circuit area provides a driving voltage to the driving transistor included in the N-th pixel circuit.

5 . The display device of claim 1 , further comprising:
a common voltage line disposed on the substrate, the common voltage line extending in the second direction, wherein the common voltage line, the driving voltage line, and the data line are disposed in the first direction in an order of the driving voltage line, the data line, and the common voltage line.

6 . The display device of claim 5 , wherein the driving voltage line and the common voltage line are disposed in a same layer.

7 . The display device of claim 5 , wherein the driving voltage line and the common voltage line are disposed in different layers.

8 . The display device of claim 5 , further comprising:
an active pattern disposed on the substrate and overlapping the first to N-th pixel circuit areas; a first conductive layer disposed on the active pattern and including a gate electrode; and a second conductive layer disposed on the first conductive layer.

9 . The display device of claim 8 , wherein the second conductive layer includes the driving voltage line and the common voltage line.

10 . The display device of claim 8 , further comprising:
a third conductive layer disposed on the second conductive layer, wherein the second conductive layer includes the driving voltage line, and the third conductive layer includes the common voltage line.

11 . The display device of claim 8 , wherein the active pattern includes an oxide semiconductor.

12 . A display device comprising:
a substrate including first to N-th pixel circuit areas disposed in a first direction, where N is a natural number greater than 1; an initialization voltage line disposed on the substrate, the initialization voltage line extending in a second direction intersecting the first direction, and overlapping one of the first to N-th pixel circuit areas; a common voltage line disposed on the substrate, the common voltage line extending in the second direction, and adjacent to the initialization voltage line in the first direction, and a data line disposed on the substrate, the data line extending in the second direction, and spaced apart from the initialization voltage line in the first direction with the common voltage line disposed between the data line and the initialization voltage line.

13 . The display device of claim 12 , further comprising:
first to N-th pixel circuits disposed in the first to N-th pixel circuit areas, respectively, wherein each of the first to N-th pixel circuits includes:
a driving transistor which provides a driving current;
a first switching transistor which provides a data voltage to the driving transistor; and
a second switching transistor which provides an initialization voltage to the driving transistor.

14 . The display device of claim 13 , wherein a gate electrode of the first switching transistor and a gate electrode of the second switching transistor receive a same signal.

15 . The display device of claim 13 , further comprising:
a driving voltage line disposed on the substrate and extending in the second direction, wherein the driving voltage line, the common voltage line, and the data line are disposed in the first direction in an order of the common voltage line, the data line, and the driving voltage line.

16 . The display device of claim 15 , wherein
the driving voltage line overlaps each of the first to N-th pixel circuit areas, and the driving voltage line overlapping the N-th pixel circuit area provides a driving voltage to the driving transistor included in the N-th pixel circuit.

17 . The display device of claim 15 , wherein the driving voltage line and the common voltage line are disposed in a same layer.

18 . The display device of claim 15 , further comprising:
an active pattern disposed on the substrate and overlapping the first to N-th pixel circuit areas; a first conductive layer disposed on the active pattern and including a gate electrode; and a second conductive layer disposed on the first conductive layer.

19 . The display device of claim 18 , wherein the second conductive layer includes the driving voltage line and the common voltage line.

Assignees

• Samsung Display Co Ltd

Inventors

• Shin Dong Hee
• Son Sunkwun

Classifications

• G09G2320/0209

  Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display · CPC title

• G09G2300/0809

  Several active elements per pixel in active matrix panels · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/3275

  Details of drivers for data electrodes · CPC title

• G09G3/3233 Primary

  with pixel circuitry controlling the current through the light-emitting element · CPC title