Display panel and display apparatus including the same

Patent metadata

Field	Value
Publication number	US-12328989-B2
Application number	US-202318492752-A
Country	US
Kind code	B2
Filing date	Oct 23, 2023
Priority date	Aug 24, 2020
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A display panel includes: a substrate including a main display area, a component area, and a peripheral area; an auxiliary display element in the component area; an auxiliary pixel circuit in the peripheral area and comprising an auxiliary thin-film transistor and an auxiliary storage capacitor; a transparent connection line connecting the auxiliary display element to the auxiliary pixel circuit; and a first organic insulating layer and a second organic insulating layer that are stacked between the substrate and the auxiliary display element in the component area, wherein the first organic insulating layer is between the transparent connection line and the auxiliary display element, and a refractive index of the first organic insulating layer is between a refractive index of the transparent connection line and a refractive index of the second organic insulating layer.

First claim

What is claimed is:

1. A display panel comprising:
a substrate including a main display area, a component area, and an auxiliary pixel circuit area close to the component area;
an auxiliary display element in the component area;
an auxiliary pixel circuit in the auxiliary pixel circuit area and comprising an auxiliary thin-film transistor and an auxiliary storage capacitor;
a transparent connection line connecting the auxiliary display element to the auxiliary pixel circuit;
a bottom metal layer overlapping the auxiliary display element; and
a first organic insulating layer disposed between the substrate and the auxiliary display element in the component area,
wherein the first organic insulating layer is between the transparent connection line and the auxiliary display element, and
the bottom metal layer is disposed between the substrate and the auxiliary display element.

2. The display panel of claim 1 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line and the transparent connection line are on a same layer, and an end of the transparent connection line covers an end of the metal connection line.

3. The display panel of claim 1 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line and an upper electrode of the auxiliary storage capacitor are on a same layer, and the transparent connection line is connected to the metal connection line via a contact hole.

4. The display panel of claim 1 , further comprising a metal connection line connecting the transparent connection line and the auxiliary display element to each other,
wherein the metal connection line and a lower electrode of the auxiliary storage capacitor are on a same layer, and the transparent connection line is connected to the metal connection line via a contact hole.

5. The display panel of claim 1 , further comprising an inorganic insulating layer on the substrate,
wherein the inorganic insulating layer comprises a hole or groove corresponding to the component area.

6. The display panel of claim 5 , wherein the transparent connection line is inside the hole or groove of the inorganic insulating layer, and
the first organic insulating layer fills the hole or groove of the inorganic insulating layer and is on an entire surface of the substrate.

7. The display panel of claim 6 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line is on the first organic insulating layer, and the transparent connection line is connected to the metal connection line via a contact hole.

8. The display panel of claim 1 , further comprising a second organic insulating layer disposed between the first organic insulating layer and the auxiliary display element in the component area, wherein and a refractive index of the first organic insulating layer is between a refractive index of the transparent connection line and a refractive index of the second organic insulating layer.

9. The display panel of claim 8 , wherein the refractive index of the first organic insulating layer is greater than the refractive index of the second organic insulating layer.

10. The display panel of claim 1 , wherein a difference between a refractive index of the transparent connection line and a refractive index of the first organic insulating layer is 0.45 or less.

11. A display apparatus comprising:
a display panel comprising a main display area including a plurality of main sub-pixels, a component area including a plurality of sub-pixels, and an auxiliary pixel circuit area close to the component area; and
a component at the component area below the display panel, wherein the display panel comprises:
a substrate;
an auxiliary display element in the component area;
an auxiliary pixel circuit in the auxiliary pixel circuit area and comprising an auxiliary thin-film transistor and an auxiliary storage capacitor;
a transparent connection line connecting the auxiliary display element to the auxiliary pixel circuit;
a bottom metal layer overlapping the auxiliary display element; and
a first organic insulating layer disposed between the substrate and the auxiliary display element in the component area,
wherein the first organic insulating layer is between the transparent connection line and the auxiliary display element, and
the bottom metal layer is disposed between the substrate and the auxiliary display element.

12. The display apparatus of claim 11 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line and the transparent connection line are on a same layer, and an end of the transparent connection line covers an end of the metal connection line.

13. The display apparatus of claim 11 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line and an upper electrode of the auxiliary storage capacitor are on a same layer, and the transparent connection line is connected to the metal connection line via a contact hole.

14. The display apparatus of claim 11 , further comprising a metal connection line connecting the transparent connection line and the auxiliary display element to each other,
wherein the metal connection line and a lower electrode of the auxiliary storage capacitor are on a same layer, and the transparent connection line is connected to the metal connection line via a contact hole.

15. The display apparatus of claim 11 , further comprising an inorganic insulating layer on the substrate,
wherein the inorganic insulating layer comprises a hole or groove corresponding to the component area.

16. The display apparatus of claim 15 , wherein the transparent connection line is inside the hole or groove of the inorganic insulating layer, and
the first organic insulating layer fills the hole or groove of the inorganic insulating layer and is on an entire surface of the substrate.

17. The display apparatus of claim 16 , further comprising a metal connection line connecting the transparent connection line to the auxiliary display element,
wherein the metal connection line is on the first organic insulating layer, and the transparent connection line is connected to the metal connection line via a contact hole.

18. The display apparatus of claim 11 , further comprising a second organic insulating layer disposed between the first organic insulating layer and the auxiliary display element in the component area, wherein and a refractive index of the first organic insulating layer is between a refractive index of the transparent connection line and a refractive index of the second organic insulating layer.

19. The display apparatus of claim 18 , wherein the refractive index of the first organic insulating layer is greater than the refractive index of the second organic insulating layer.

20. The display apparatus of claim 11 , wherein the component includes an image pickup device.

Assignees

• Samsung Display Co Ltd

Inventors

• Kang Juhoon
• Kim Gunhee
• Kim Hyunho
• Park Hyungkeun
• Shim Donghwan
• Yang Taehoon
• Jeon Joohee
• Jung Sunyoung
• Choi Chungsock

Classifications

• H10K50/844

  Encapsulations · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title