US-20260130075-A1 - DISPLAY APPARATUS INCLUDING VERTICAL AND HORIZONTAL POWER LINES ON DIFFERENT LAYERS

Abstract

A display apparatus includes a first sub-pixel including a first pixel electrode; a second sub-pixel including a second pixel electrode; a 1 st -1 st vertical power line extending in a first direction passing through the first sub-pixel; a 1 st -2 nd vertical power line extending in the first direction passing through the second sub-pixel; a first horizontal power line, the first horizontal power line, and the 1 st -1 st vertical power line and the 1 st -2 nd vertical power line being disposed on different layers, extending in a second direction intersecting the first direction, and electrically connected to the 1 st -1 st vertical power line and the 1 st -2 nd vertical power line; and an opposite electrode disposed above the first pixel electrode and the second pixel electrode, being integral as a single body over the first sub-pixel and the second sub-pixel, and electrically connected to the 1 st -1 st vertical power line and the 1 st -2 nd vertical power line.

Inventors

• Heerim SONG
• Heejean PARK
• Yujin Lee
• Cheolgon Lee
• Mukyung JEON

Assignees

• SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date

20260507

Application Date

20251218

Priority Date

20211018

Claims (20)

1. 1 . A display apparatus comprising: a substrate including a display area including an edge extending in a first direction and an edge extending in a second direction; a lower write signal line extending in the second direction intersecting the display area; an upper write signal line disposed above the lower write signal line, extending in the second direction, and electrically connected to the lower write signal line; and a semiconductor layer including a switching active area overlapping at least one of the lower write signal line and the upper write signal line in a plan view.
2. 2 . The display apparatus of claim 1 , further comprising: a data line extending in the first direction intersecting the display area and electrically connected to a side of the switching active area of the semiconductor layer.
3. 3 . The display apparatus of claim 1 , wherein the semiconductor layer is disposed on an insulating layer covering the lower write signal line.
4. 4 . The display apparatus of claim 3 , wherein the switching active area of the semiconductor layer overlaps the lower write signal line in the plan view.
5. 5 . The display apparatus of claim 4 , wherein the lower write signal line has a protrusion, and the switching active area of the semiconductor layer overlaps the protrusion in the plan view.
6. 6 . The display apparatus of claim 4 , wherein the semiconductor layer includes an oxide semiconductor material.
7. 7 . The display apparatus of claim 4 , wherein the semiconductor layer is an n-type semiconductor layer.
8. 8 . The display apparatus of claim 1 , further comprising: a second vertical power line extending in the first direction intersecting the display area; a first horizontal power line, the first horizontal power line and the second vertical power line being disposed on different layers, the first horizontal power line extending in the second direction intersecting the display area, and electrically connected to the second vertical power line; and an opposite electrode electrically connected to the second vertical power line and being integral as a single body over sub-pixels.
9. 9 . The display apparatus of claim 8 , wherein the opposite electrode is electrically connected to the second vertical power line outside of the display area.
10. 10 . The display apparatus of claim 8 , wherein the second vertical power line is disposed on an insulating layer covering the first horizontal power line.
11. 11 . The display apparatus of claim 8 , wherein the first horizontal power line comprises: a first lower horizontal power line extending in the second direction; and a first upper horizontal power line disposed above the first lower horizontal power line and electrically connected to the first lower horizontal power line.
12. 12 . The display apparatus of claim 11 , wherein the first lower horizontal power line and the lower write signal line are disposed on a same layer.
13. 13 . The display apparatus of claim 11 , wherein the first upper horizontal power line and the upper write signal line are disposed on a same layer.
14. 14 . The display apparatus of claim 11 , further comprising: a semiconductor layer disposed on an insulating layer covering the first lower horizontal power line, wherein the first upper horizontal power line is disposed on an insulating layer covering the semiconductor layer.
15. 15 . The display apparatus of claim 11 , further comprising: a first vertical power line extending in the first direction intersecting the display area; and a second horizontal power line, the second horizontal power line and the second vertical power line being disposed on different layers, the second horizontal power line extending in the second direction intersecting the display area, and electrically connected to the second vertical power line.
16. 16 . The display apparatus of claim 15 , wherein the semiconductor layer includes an operation control active area of an operation control transistor, and the second horizontal power line is electrically connected to a side of the operation control active area through a contact hole.
17. 17 . The display apparatus of claim 15 , wherein the second horizontal power line and the upper write signal line are disposed on a same layer.
18. 18 . The display apparatus of claim 17 , wherein the first vertical power line is disposed on an insulating layer covering the second horizontal power line.
19. 19 . The display apparatus of claim 17 , further comprising: a data line extending in the first direction intersecting the display area, and electrically connected to a side of the switching active area of the semiconductor layer, wherein the data line and the first vertical power line are disposed on a same layer.
20. 20 . The display apparatus of claim 19 , further comprising: a capacitor electrode, wherein the second horizontal power line is disposed on an insulating layer covering the capacitor electrode and has a protrusion between the capacitor electrode and the data line.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) This application is a divisional application of U.S. patent application Ser. No. 17/742,983, filed on May 12, 2022, which claims priority to and benefits of Korean Patent Application No. 10-2021-0138839 under 35 U.S. C. § 119, filed on Oct. 18, 2021, in the Korean Intellectual Property Office, the entire contents of both of which are incorporated herein by reference. BACKGROUND 1. Technical Field One or more embodiments relate to a display apparatus, and to a display apparatus that displays high-quality images. 2. Description of the Related Art In general, in a display apparatus such as an organic light-emitting display apparatus, thin-film transistors, connection electrodes, and wires may be arranged in each sub-pixel to control the luminance of each sub-pixel. However, such a display apparatus has a problem in that the quality of an implemented image may be low. It is to be understood that this background of the technology section is, in part, intended to provide useful background for understanding the technology. However, this background of the technology section may also include ideas, concepts, or recognitions that were not part of what was known or appreciated by those skilled in the pertinent art prior to a corresponding effective filing date of the subject matter disclosed herein. SUMMARY One or more embodiments include a display apparatus capable of displaying high-quality images. However, this is an example, and the scope of the disclosure is not limited thereto. Additional aspects will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the embodiments of the disclosure. According to one or more embodiments, a display apparatus may include a first sub-pixel including a first pixel electrode; a second sub-pixel including a second pixel electrode; a 1st-1st vertical power line extending in a first direction passing through the first sub-pixel; a 1st-2nd vertical power line extending in the first direction passing through the second sub-pixel; a first horizontal power line, the first horizontal power line, and the 1st-1st vertical power line and the 1st-2nd vertical power line being disposed on different layers, the first horizontal power line extending in a second direction intersecting the first direction, the first horizontal power line electrically connected to the 1st-1st vertical power line and the 1st-2nd vertical power line; and an opposite electrode disposed above the first pixel electrode and the second pixel electrode, being integral as a single body over the first sub-pixel and the second sub-pixel, and electrically connected to the 1st-1st vertical power line and the 1st-2nd vertical power line. The opposite electrode may be electrically connected to the 1st-1st vertical power line and the 1st-2nd vertical power line, outside of a display area including the first sub-pixel and the second sub-pixel. The 1st-1st vertical power line and the 1st-2nd vertical power line may be disposed on an insulating layer covering the first horizontal power line. The 1st-1st vertical power line may be electrically connected to the first horizontal power line through a contact hole in the first sub-pixel, and the 1st-2nd vertical power line may be electrically connected to the first horizontal power line through a contact hole in the second sub-pixel. The first horizontal power line may include a first lower horizontal power line extending in the second direction; and a first upper horizontal power line disposed above the first lower horizontal power line and electrically connected to the first lower horizontal power line. The display apparatus may further include a semiconductor layer disposed on an insulating layer covering the first lower horizontal power line, wherein the first upper horizontal power line may be disposed on an insulating layer covering the semiconductor layer. The semiconductor layer may include an oxide semiconductor material. The semiconductor layer may be an n-type semiconductor layer. The display apparatus may further include a second vertical power line disposed outside of the first sub-pixel and the second sub-pixel and extending in the first direction; and a second horizontal power line extending in the second direction and passing through the first sub-pixel and the second sub-pixel and electrically connected to the second vertical power line. The second horizontal power line may be electrically connected to a transistor included in the first sub-pixel and a transistor included in the second sub-pixel. The second vertical power line, the 1st-1st vertical power line, and the 1st-2nd vertical power line may be disposed on a same layer. The first horizontal power line may include a first lower horizontal power line extending in the second direction; and a first upper horizontal power line disposed above the first lower horizontal power line and electric