Display apparatus and electronic apparatus including the same

Patent metadata

Field	Value
Publication number	US-12349558-B2
Application number	US-202217888957-A
Country	US
Kind code	B2
Filing date	Aug 16, 2022
Priority date	Dec 27, 2021
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A display apparatus includes connection lines connecting pixel circuits in the non-display area to display elements in a component area, a first organic insulating layer in the component area, and a second organic insulating layer on the first organic insulating layer, where the connection lines are disposed between the first organic insulating layer and the second organic insulating layer, where an upper surface of the first organic insulating layer includes a first lens structure, where the first lens structure includes a first curved portion disposed between two connection lines adjacent to each other, and an upper surface of the second organic insulating layer includes a second lens structure, where the second lens structure includes a second curved portion overlapping the first curved portion, and a refractive index of the second organic insulating layer is different from a refractive index of the first organic insulating layer.

First claim

What is claimed is:

1. A display apparatus comprising:
first display elements disposed in a main display area;
second display elements disposed in a component area at least partially surrounded by the main display area;
pixel circuits disposed in a non-display area and electrically connected to the second display elements;
connection lines connecting the pixel circuits in the non-display area to the second display elements in the component area;
a first organic insulating layer disposed over a substrate in the component area; and
a second organic insulating layer disposed on the first organic insulating layer in the component area,
wherein the connection lines are disposed between the first organic insulating layer and the second organic insulating layer,
wherein an upper surface of the first organic insulating layer includes a first lens structure, wherein the first lens structure includes a first curved portion disposed between two connection lines adjacent to each other among the connection lines, and an upper surface of the second organic insulating layer includes a second lens structure,
wherein the second lens structure includes a second curved portion overlapping the first curved portion and a portion of the two connection lines adjacent to each other, and
wherein a refractive index of the second organic insulating layer is different from a refractive index of the first organic insulating layer.

2. The display apparatus of claim 1 , wherein the refractive index of the second organic insulating layer is greater than the refractive index of the first organic insulating layer.

3. The display apparatus of claim 1 , further comprising:
a bank layer disposed on the second organic insulating layer,
wherein the refractive index of the second organic insulating layer is greater than a refractive index of the bank layer, and greater than the refractive index of the first organic insulating layer.

4. The display apparatus of claim 1 , wherein a radius of curvature of the second curved portion of the second lens structure is greater than a radius of curvature of the first curved portion of the first lens structure.

5. The display apparatus of claim 1 , wherein a width of the second curved portion of the second lens structure is greater than a width of the first curved portion of the first lens structure.

6. The display apparatus of claim 1 , wherein,
in a vertical cross-section, the first curved portion of the first lens structure has a first angle with respect to an imaginary line parallel to a horizontal surface of the substrate, and,
in a vertical cross-section, the second curved portion of the second lens structure has a second angle with respect to another imaginary line parallel to the horizontal surface of the substrate.

7. The display apparatus of claim 6 , wherein the second angle of the second curved portion is less than the first angle of the first curved portion.

8. The display apparatus of claim 1 , wherein a width of each of the connection lines is in a range of about 0.7 μm to about 1.3 μm.

9. The display apparatus of claim 1 , wherein a refractive index of the second organic insulating layer is about 1.7 or greater.

10. The display apparatus of claim 1 , wherein the connection lines include at least one selected from aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chrome (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu).

11. An electronic apparatus comprising:
a display apparatus comprising a main display area, a component area, and a non-display area; and
a component disposed over a backside of the display apparatus and overlapping the component area,
wherein the display apparatus comprises:
first display elements disposed in the main display area;
second display elements disposed in the component area at least partially surrounded by the main display area;
pixel circuits disposed in a non-display area and electrically connected to the second display elements;
connection lines connecting the pixel circuits in the non-display area to the second display elements in the component area;
a first organic insulating layer over a substrate in the component area; and
a second organic insulating layer on the first organic insulating layer in the component area,

wherein the connection lines are disposed between the first organic insulating layer and the second organic insulating layer,
an upper surface of the first organic insulating layer includes a first lens structure including a first curved portion, wherein the first curved portion is disposed between two connection lines adjacent to each other among the connection lines and is convex upward, and
wherein an upper surface of the second organic insulating layer includes a second lens structure including a second curved portion overlapping the first curved portion and a portion of the two connection lines adjacent to each other, wherein the second curved portion is convex upward, and
wherein a refractive index of the second organic insulating layer is different from a refractive index of the first organic insulating layer.

12. The electronic apparatus of claim 11 , wherein the refractive index of the second organic insulating layer is greater than the refractive index of the first organic insulating layer.

13. The electronic apparatus of claim 11 , further comprising:
a bank layer on the second organic insulating layer,
wherein the refractive index of the second organic insulating layer is greater than a refractive index of the bank layer, and greater than the refractive index of the first organic insulating layer.

14. The electronic apparatus of claim 11 , wherein a radius of curvature of the second curved portion of the second lens structure is greater than a radius of curvature of the first curved portion of the first lens structure.

15. The electronic apparatus of claim 11 , wherein a width of the second curved portion of the second lens structure is greater than a width of the first curved portion of the first lens structure.

16. The electronic apparatus of claim 11 , wherein,
in a vertical cross-section, the first curved portion of the first lens structure has a first angle with respect to an imaginary line parallel to a horizontal surface of the substrate, and,
in a vertical cross-section, the second curved portion of the second lens structure has a second angle with respect to another imaginary line parallel to the horizontal surface of the substrate.

17. The electronic apparatus of claim 16 , wherein the second angle of the second curved portion is less than the first angle of the first curved portion.

18. The electronic apparatus of claim 11 , wherein a width of each of the connection lines is in a range of about 0.7 μm to about 1.3 μm.

19. The electronic apparatus of claim 11 , wherein the refractive index of the second organic insulating layer is about 1.7 or greater.

20. The electronic apparatus of claim 11 , wherein the connection lines include at least one selected from aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chrome (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and copper (Cu).

21. The electronic apparatus of claim 11 , wherein the component comprises at least one selected from a camera, a speaker, a solar battery, a flash, a light-sensing sensor, and a heat-sensing sens

Assignees

• Samsung Display Co Ltd

Inventors

• Sugitani Koichi
• Kim Hyein
• Park Gwuihyun
• Han Saehee

Classifications

• H10K59/123 Primary

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• G09G2300/0842

  forming a memory circuit, e.g. a dynamic memory with one capacitor · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G3/3233

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

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title