Display apparatus including a dummy light-emitting unit

Patent metadata

Field	Value
Publication number	US-11737322-B2
Application number	US-202017092969-A
Country	US
Kind code	B2
Filing date	Nov 9, 2020
Priority date	Jan 2, 2020
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A display apparatus includes a substrate; a first circuit unit located on the substrate and including a first thin-film transistor (TFT) and a first storage capacitor; a first dummy circuit unit on the substrate, including a first dummy TFT and a first dummy storage capacitor, and in the same layer as the first circuit unit; and a first dummy light-emitting unit on the first dummy circuit unit, connected to the first circuit unit, and configured to be driven by the first circuit unit, wherein the first dummy light-emitting unit overlaps the first dummy circuit unit.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate;
a first circuit unit located on the substrate and comprising a first thin-film transistor (TFT) and a first storage capacitor;
a first dummy circuit unit on the substrate, comprising a first dummy TFT and a first dummy storage capacitor, and in the same layer as the first circuit unit; and
a first dummy light-emitting unit on the first dummy circuit unit, connected to the first circuit unit, and configured to be driven by the first circuit unit,
wherein the first dummy light-emitting unit overlaps the first dummy circuit unit in a plan view.

2. The display apparatus of claim 1 , further comprising a first light-emitting unit on the first circuit unit, connected to the first circuit unit, and configured to be driven by the first circuit unit,
wherein the first light-emitting unit overlaps the first circuit unit.

3. The display apparatus of claim 1 , further comprising:
a second circuit unit located on the substrate and comprising a second TFT and a second storage capacitor;
a second dummy circuit unit on the substrate, comprising a second dummy TFT and a second dummy storage capacitor, and in the same layer as the second circuit unit; and
a second dummy light-emitting unit on the second dummy circuit unit, connected to the second circuit unit, and configured to be driven by the second circuit unit,
wherein the second dummy light-emitting unit overlaps the second dummy circuit unit.

4. The display apparatus of claim 3 , further comprising a second light-emitting unit on the second circuit unit, connected to the second circuit unit, and configured to be driven by the second circuit unit,
wherein the second light-emitting unit overlaps the second circuit unit.

5. The display apparatus of claim 1 , wherein the substrate comprises a transmitting area, a first display area surrounding the transmitting area, a second display area between the transmitting area and the first display area, and a first non-display area between the transmitting area and the second display area,
wherein the first circuit unit is in the first display area, and
wherein the first dummy circuit unit is in the second display area.

6. The display apparatus of claim 1 , wherein the substrate comprises a third display area, a first display area surrounding the third display area, and a second display area between the first display area and the third display area,
wherein a transmitting unit is in the third display area,
wherein the first circuit unit is in the first display area, and
wherein the first dummy circuit unit is in the second display area.

7. The display apparatus of claim 6 , further comprising a component located under the third display area.

8. A display apparatus comprising:
a substrate;
a first circuit unit on the substrate and comprising a first thin-film transistor (TFT) and a first storage capacitor;
a first pixel electrode on the first circuit unit and connected to the first TFT;
a pixel defining layer covering an edge of the first pixel electrode and having a first opening and a second opening, a first part of the first pixel electrode being exposed through the first opening and a second part of the first pixel electrode being exposed through the second opening;
a first intermediate layer in the first opening;
a second intermediate layer in the second opening; and
an opposite electrode on the pixel defining layer and covering the first intermediate layer and the second intermediate layer.

9. The display apparatus of claim 8 , wherein the first opening overlaps the first circuit unit.

10. The display apparatus of claim 8 , further comprising:
a second circuit unit on the substrate, in the same layer as the first circuit unit, and comprising a second TFT and a second storage capacitor;
a second pixel electrode on the second circuit unit, in the same layer as the first pixel electrode, and connected to the second TFT;
a third intermediate layer on the second pixel electrode; and
a fourth intermediate layer in the same layer as the third intermediate layer,
wherein the pixel defining layer covers an edge of the second pixel electrode and further has a third opening and a fourth opening through which a part of the second pixel electrode is exposed,
wherein the third intermediate layer is in the third opening, and
wherein the fourth intermediate layer is in the fourth opening.

11. The display apparatus of claim 10 , wherein the third opening overlaps the second circuit unit.

12. The display apparatus of claim 8 , wherein the substrate comprises a transmitting area, a first display area surrounding the transmitting area, a second display area between the transmitting area and the first display area, and a first non-display area between the transmitting area and the second display area,
wherein the first circuit unit is in the first display area, and
wherein one of the first opening or the second opening is in the second display area.

13. The display apparatus of claim 8 , wherein the substrate comprises a third display area, a first display area surrounding the third display area, and a second display area between the first display area and the third display area,
wherein a transmitting unit is in the third display area,
wherein the first circuit unit is in the first display area, and
wherein one of the first opening or the second opening is in the second display area.

14. The display apparatus of claim 13 , further comprising a component located under the third display area.

15. A display apparatus comprising:
a substrate comprising a transmitting area, a first display area surrounding the transmitting area, a second display area between the transmitting area and the first display area, and a first non-display area between the transmitting area and the second display area;
a first bypass wiring in the second display area, extending in a first direction, and bypassing the transmitting area along an edge of the transmitting area;
a first circuit unit in the first display area and comprising a first thin-film transistor (TFT) and a first storage capacitor;
a first pixel electrode on the first circuit unit and connected to the first TFT;
a pixel defining layer covering an edge of the first pixel electrode and having a first opening and a second opening through which a part of the first pixel electrode is exposed;
a first intermediate layer in the first opening;
a second intermediate layer in the second opening; and
an opposite electrode on the pixel defining layer and covering the first intermediate layer and the second intermediate layer,
wherein one of the first opening or the second opening overlaps the first bypass wiring.

16. The display apparatus of claim 15 , further comprising:
a second circuit unit in the first display area, in the same layer as the first circuit unit, and comprising a second TFT and a second storage capacitor;
a second pixel electrode on the second circuit unit, in the same layer as the first pixel electrode, and connected to the second TFT;
a third intermediate layer on the second pixel electrode; and
a fourth intermediate layer in the same layer as the third intermediate layer,
wherein the pixel defining layer covers an edge of the second pixel electrode and further has a third opening and a fourth opening through which a part of the second pixel electrode is exposed,
wherein the third intermediate layer is in the third opening,
the fourth intermediate layer is in the fourth opening, and
one of the third opening or the fourth opening overlaps the f

Assignees

• Samsung Display Co Ltd

Inventors

• Youn Ilgoo
• Sung Seungwoo
• Lee Jieun
• Jeong Jintae
• Choi Minhee

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/80

  Constructional details · CPC title

• H10K59/131 Primary

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

• H10K59/88 Primary

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

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title