Display apparatus

Patent metadata

Field	Value
Publication number	US-12284889-B2
Application number	US-202217731217-A
Country	US
Kind code	B2
Filing date	Apr 27, 2022
Priority date	Aug 11, 2021
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A display apparatus includes a substrate, a first data line, a second data line, and a bridge line. The substrate includes a display area and a peripheral area outside the display area. The first data line is disposed over the substrate and crosses the display area. The second data line is disposed over the substrate and is disposed in a first direction from the first data line. The second data line crosses the display area. The bridge line includes one end electrically connected to the second data line and crosses, on a different layer from a layer on which the first data line is disposed, the first data line in the display area. A length of the first data line is greater than a length of the second data line.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising a display area and a peripheral area outside the display area;
a first data line disposed over the substrate and crossing the display area;
a second data line disposed over the substrate and disposed in a first direction from the first data line, the second data line crossing the display area; and
a bridge line comprising one end electrically connected to the second data line and crossing, on a different layer from a layer on which the first data line is disposed, the first data line in the display area,
wherein a length of the first data line is greater than a length of the second data line.

2. The display apparatus of claim 1 , further comprising:
a first input line disposed in a first peripheral area of the peripheral area, the first peripheral area being disposed on one side of the display area, the first input line being electrically connected to the first data line; and
a second input line disposed in the first peripheral area and disposed in a direction opposite the first direction from the first input line, the second input line being electrically connected to another end of the bridge line.

3. The display apparatus of claim 2 , wherein the first data line extends into a second peripheral area of the peripheral area, the second peripheral area being disposed on another side of the display area.

4. The display apparatus of claim 2 , wherein:
each of the first data line and the second data line extends into a second peripheral area of the peripheral area, the second peripheral area being disposed on another side of the display area; and
a length of the first data line in the second peripheral area is greater than a length of the second data line in the second peripheral area.

5. The display apparatus of claim 3 , further comprising:
a constant voltage line disposed in the second peripheral area, the constant voltage line being configured to transmit a constant voltage,
wherein the first data line overlaps, on a different layer from a layer on which the constant voltage line is disposed, the constant voltage line.

6. The display apparatus of claim 5 , wherein the constant voltage line is electrically connected to driving voltage lines configured to supply power to pixel circuits in the display area.

7. The display apparatus of claim 5 , wherein the constant voltage line is electrically connected to an opposite electrode, which is integrally formed as one body over the display area.

8. The display apparatus of claim 3 , further comprising:
a dummy pixel electrode disposed in the second peripheral area to overlap, on a different layer from the layer on which the first data line is disposed, the first data line, the dummy pixel electrode comprising a same material as that of a pixel electrode arranged in the display area.

9. The display apparatus of claim 8 , further comprising:
a constant voltage line disposed in the second peripheral area, the constant voltage line being configured to transmit a constant voltage,
wherein the dummy pixel electrode is electrically connected to the constant voltage line.

10. The display apparatus of claim 9 , wherein the constant voltage line is electrically connected to driving voltage lines configured to supply power to pixel circuits in the display area.

11. The display apparatus of claim 9 , wherein the constant voltage line is electrically connected to an opposite electrode, which is integrally formed as one body over the display area.

12. The display apparatus of claim 2 , further comprising:
a third data line disposed over the substrate and disposed in the direction opposite the first direction from the first data line, the third data line crossing the display area; and
a third input line disposed in the first peripheral area and positioned in the direction opposite the first direction from the second input line, the third input line being electrically connected to the third data line,
wherein the first data line and the third data line extend into a second peripheral area of the peripheral area, the second peripheral area being disposed on another side of the display area.

13. The display apparatus of claim 2 , further comprising:
a third data line disposed over the substrate and disposed in the direction opposite the first direction from the first data line, the third data line crossing the display area; and
a third input line disposed in the first peripheral area and disposed in the direction opposite the first direction from the second input line, the third input line being electrically connected to the third data line,
wherein each of the first data line, the second data line, and the third data line extends into a second peripheral area of the peripheral area, the second peripheral area being disposed on another side of the display area, and
wherein a length of the first data line in the second peripheral area and a length of the third data line in the second peripheral area is greater than a length of the second data line in the second peripheral area.

14. The display apparatus of claim 12 , wherein a length of the first data line in the second peripheral area is greater than a length of the third data line in the second peripheral area.

15. The display apparatus of claim 12 , further comprising:
a constant voltage line disposed in the second peripheral area, the constant voltage line being configured to transmit a constant voltage,
wherein the first data line and the third data line overlap, on a different layer from a layer on which the constant voltage line is disposed, the constant voltage line.

16. The display apparatus of claim 15 , wherein the constant voltage line is electrically connected to driving voltage lines configured to supply power to pixel circuits in the display area.

17. The display apparatus of claim 15 , wherein the constant voltage line is electrically connected to an opposite electrode, which is integrally formed as one body over the display area.

18. The display apparatus of claim 12 , further comprising:
dummy pixel electrodes disposed in the second peripheral area to overlap, on a different layer from a layer on which the first data line and the third data line are disposed, the first data line and the third data line, the dummy pixel electrodes comprising a same material as that of a pixel electrode disposed in the display area.

19. The display apparatus of claim 18 , further comprising:
a constant voltage line disposed in the second peripheral area, the constant voltage line being configured to transmit a constant voltage,
wherein the dummy pixel electrodes are electrically connected to the constant voltage line.

20. The display apparatus of claim 19 , wherein the constant voltage line is electrically connected to driving voltage lines configured to supply power to pixel circuits in the display area.

21. The display apparatus of claim 19 , wherein the constant voltage line is electrically connected to an opposite electrode, which is integrally formed as one body over the display area.

22. The display apparatus of claim 1 , wherein a sum of a length of the second data line and a length of the bridge line is equal to a length of the first data line.

Assignees

• Samsung Display Co Ltd

Inventors

• Yeo Inhyuck
• Park Jiryun
• Seong Seokje
• Shin Hyeonwoo
• Cho Seunghwan
• Choi Wonsuk

Classifications

• H10K59/88

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

• G09G2300/0413

  Details of dummy pixels or dummy lines in flat panels · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/352

  the areas of the RGB subpixels being different · CPC title