Display device including intersecting scan lines

Patent metadata

Field	Value
Publication number	US-12446417-B2
Application number	US-202117528169-A
Country	US
Kind code	B2
Filing date	Nov 16, 2021
Priority date	Mar 24, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A display device includes a substrate, a plurality of scan lines disposed on the substrate, a plurality of data lines and a plurality of dummy data lines intersecting the scan lines, a plurality of first pixel circuit units connected to the scan lines and the plurality of data lines, a first light-emitting element connected to the first pixel circuit unit, a plurality of second pixel circuit units connected to the scan lines and the plurality of dummy data lines, and a second light-emitting element connected to the second pixel circuit unit, where at least one of a plurality of scan lines intersects another adjacent scan line.

First claim

What is claimed is:

1. A display device comprising:
a substrate including a display area which provides a color image;
a plurality of scan lines disposed on the substrate;
a plurality of data lines and a plurality of dummy data lines intersecting the plurality of scan lines, each of the plurality of scan lines overlapping the display area;
a plurality of first pixel circuit units which display color image and are connected to the plurality of scan lines and the plurality of data lines;
a first light-emitting element connected to a first pixel circuit unit of the plurality of first pixel circuit units;
a plurality of second pixel circuit units connected to the plurality of scan lines and the plurality of dummy data lines; and
a second light-emitting element connected to a second pixel circuit unit of the plurality of second pixel circuit units,
wherein at least one of the plurality of scan lines intersects another adjacent scan line of the plurality of scan lines.

2. The display device of claim 1 , wherein
the substrate further includes a peripheral area,
the display area includes a first display area and a second display area disposed between the first display area and the peripheral area, p 1 the first pixel circuit unit and the first light-emitting element are disposed in the first display area, and
the second pixel circuit unit and the second light-emitting element are disposed in the second display area.

3. The display device of claim 2 , further comprising
a driving circuit unit generating and transmitting a signal for driving the first light-emitting element and the second light-emitting element,
at least a part of the driving circuit unit is disposed in the second display area, and a remaining part of the driving circuit unit is disposed in the peripheral area.

4. The display device of claim 3 , wherein
the second light-emitting element overlaps the driving circuit unit.

5. The display device of claim 4 , wherein
a light emission region of the first light-emitting element overlaps the first pixel circuit unit connected thereto, and
a light emission region of at least one second light-emitting element of a plurality of second light-emitting elements does not overlap the second pixel circuit unit connected thereto.

6. The display device of claim 4 , wherein
a light emission region of at least one second light-emitting element of the plurality of second light-emitting elements overlaps the second pixel circuit unit which is not connected thereto.

7. The display device of claim 3 , wherein
the driving circuit unit includes a scan driver, a data driver, a driving voltage supply line, and a common voltage supply line, and
the scan driver is disposed in the second display area.

8. The display device of claim 2 , wherein
the plurality of scan lines extends in a first direction,
the plurality of data lines and the plurality of dummy data lines extend in a second direction intersecting the first direction, and
the first pixel circuit unit and the second pixel circuit unit are disposed in a matrix form along the first direction and the second direction.

9. The display device of claim 8 , wherein
the plurality of scan lines includes a first scan line, a second scan line, a third scan line, and a fourth scan line,
the first scan line is connected to a first pixel circuit unit disposed in a first row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the first row among the plurality of second pixel circuit units,
the second scan line is connected to a first pixel circuit unit disposed in a second row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the second row among the plurality of second pixel circuit units,
the third scan line is connected to a first pixel circuit unit disposed in a third row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in a fourth row among the plurality of second pixel circuit units, and
the fourth scan line is connected to a first pixel circuit unit disposed in the fourth row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the third row among the plurality of second pixel circuit units.

10. The display device of claim 9 , wherein
the third scan line and the fourth scan line intersect each other at a boundary between the first display area and the second display area.

11. The display device of claim 10 , wherein
the third scan line includes a first portion disposed in the first display area, a second portion disposed in the second display area, and a connection portion connecting the first portion and the second portion, and
the connection portion of the third scan line overlaps the fourth scan line at the intersection of the third scan line and the fourth scan line.

12. The display device of claim 11 , wherein
the first portion and the second portion of the third scan line are disposed in a same layer as the fourth scan line, and
the connection portion of the third scan line is disposed in a different layer from the fourth scan line.

13. The display device of claim 8 , wherein
the plurality of scan lines includes a first scan line, a second scan line, a third scan line, and a fourth scan line,
the first scan line is connected to a first pixel circuit unit disposed in a first row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in a second row among the plurality of second pixel circuit units,
the second scan line is connected to a first pixel circuit unit disposed in the second row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the first row among the plurality of second pixel circuit units,
the third scan line is connected to a first pixel circuit unit disposed in a third row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the third row among the plurality of second pixel circuit units, and
the fourth scan line is connected to a first pixel circuit unit disposed in a fourth row among the plurality of first pixel circuit units and a second pixel circuit unit disposed in the fourth row among the plurality of second pixel circuit units.

14. The display device of claim 13 , wherein
the first scan line and the second scan line intersect each other at a boundary between the first display area and the second display area.

15. The display device of claim 2 , wherein
a size of the second light-emitting element is larger than a size of the first light-emitting element, and
an area of the second pixel circuit unit is larger than an area of the first pixel circuit unit.

16. The display device of claim 15 , wherein
the size of the second light-emitting element is twice the size of the first light-emitting element, and
the area of the second pixel circuit unit is twice the area of the first pixel circuit unit.

17. A display device comprising:
a substrate including a first display area, a peripheral area, and a second display area disposed between the first display area and the peripheral area;
a first scan line and a second scan line disposed on the substrate;
a first pixel circuit unit disposed in the first display area and connected to the first scan line or the second scan line; and
a second pixel circuit unit disposed in the second display area and connected to the first scan line or the second scan line,
wherein the first pixel circuit unit connected to the first scan line is disposed

Assignees

• Samsung Display Co Ltd

Inventors

• Park Ju Chan
• Kim Sun Ho
• Kim Gun Hee

Classifications

• G09G3/00

  Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes · CPC title

• H10K59/1216

  the pixel elements being capacitors · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title

• H10K59/88 Primary

  Dummy elements, i.e. elements having non-functional features · CPC title

• G09G2330/028

  Generation of voltages supplied to electrode drivers in a matrix display other than LCD · CPC title