Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11469376-B2
Application number	US-202016895614-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Nov 12, 2019
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

Provided are a display apparatus and a method of manufacturing the same. The display apparatus includes a substrate, a first conductive layer disposed on the substrate, and a first insulating pattern disposed on the first conductive layer. The first insulating pattern includes a fluorine compound and a nitrogen compound. The nitrogen compound is represented by Formula 1:NR1R2R3OH  <Formula 1>wherein in Formula 1, R1 to R3 are each independently selected from hydrogen, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C7-C30 aralkyl group.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate;
a conductive layer disposed on the substrate; and
a first insulating pattern disposed on the conductive layer, wherein
the first insulating pattern comprises;
a first material;
a fluorine compound; and
a nitrogen compound,

the first material is different from the fluorine compound and the nitrogen compound,
the concentration of the nitrogen compound is reduced from a first surface of the first insulating pattern to a second surface of the first insulating pattern, and
the first surface faces the second surface.

2. The display apparatus of claim 1 , wherein
concentration of the fluorine compound is reduced from a first surface of the first insulating pattern to a second surface of the first insulating pattern, and
the first surface faces the second surface.

3. The display apparatus of claim 2 , wherein the second surface of the first insulating pattern is in contact with the conductive layer.

4. The display apparatus of claim 1 , wherein the nitrogen compound is represented by Formula 1:
NR 1 R 2 R 3 OH  <Formula 1>

wherein in Formula 1,
R 1 to R 3 are each independently selected from hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 6 -C 30 aryl group, and a substituted or unsubstituted C 7 -C 30 aralkyl group.

5. The display apparatus of claim 1 , wherein the second surface of the first insulating pattern is in contact with the conductive layer.

6. The display apparatus of claim 1 , wherein the first insulating pattern consists essentially of the first material.

7. The display apparatus of claim 1 , wherein the first material includes an alkali soluble polymer.

8. The display apparatus of claim 1 , wherein the first material includes a siloxane-based polymer.

9. The display apparatus of claim 1 , wherein
the first insulating pattern comprises a first region and a second region,
the second region is between the conductive layer and the first region, and
an amount of the first material in the first region is greater than an amount of the first material in the second region.

10. The display apparatus of claim 9 , wherein
a ratio of the amount of the fluorine compound in the first region to the amount of the fluorine compound in the second region is from about 10:1 to about 10,000:1.

11. The display apparatus of claim 9 , wherein
a ratio of the thickness of the first region to the thickness of the second region is from about 1:10 to about 1:1,000.

12. The display apparatus of claim 1 , wherein the conductive layer comprises molybdenum, aluminum, titanium, neodymium, copper, or a combination thereof.

13. The display apparatus of claim 1 , further comprising:
a pixel electrode disposed on the first insulating pattern and electrically connected to the conductive layer.

14. The display apparatus of claim 13 , wherein
the first insulating pattern includes an opening exposing a portion of the conductive layer, and
the pixel electrode contacts the conductive layer through the opening.

15. The display apparatus of claim 14 , wherein the portion of the conductive layer exposed by the opening comprises molybdenum.

16. The display apparatus of claim 13 , further comprising:
a second insulating pattern disposed on the pixel electrode and contacting the first insulating pattern outside the pixel electrode.

17. The display apparatus of claim 16 , wherein
the first insulating pattern comprises a first material,
the second insulating pattern comprises a second material, and
the first material and the second material comprise a same material.

Assignees

• Samsung Display Co Ltd

Inventors

• Sugitani Koichi
• Kim Hyein
• Park Gwuihyun
• PARK Chulwon
• Cho Hyungbin
• Hong Pilsoon

Classifications

• H01L51/0023 Primary

  Electricity · mapped topic

• H01L2227/323

  Electricity · mapped topic

• H01L51/0094

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic