Display apparatus

Patent metadata

Field	Value
Publication number	US-11925075-B2
Application number	US-202117370815-A
Country	US
Kind code	B2
Filing date	Jul 8, 2021
Priority date	Aug 5, 2014
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A display apparatus includes: a thin-film transistor including a source electrode, a drain electrode, and a gate electrode; a data line in a layer different from the source electrode, the drain electrode, and the gate electrode, wherein the data line is configured to transmit a data signal; and a shield layer between the data line and a component of the thin-film transistor.

First claim

What is claimed is:

1. A display apparatus comprising:
a first thin-film transistor comprising a first gate electrode and a first semiconductor layer;
a first electrode layer overlapping the first gate electrode;
a first voltage line extended in a first direction and electrically connected to the first electrode layer;
a data line extended in the first direction; and
a second thin-film transistor comprising a second gate electrode and a second semiconductor layer, the second semiconductor layer being extended from one end of the first semiconductor layer and being electrically connected to the data line; and
wherein the first semiconductor layer is extended in a second direction perpendicular to the first direction and the second semiconductor layer is extended in the first direction,
wherein the first electrode layer overlaps the first semiconductor layer and the second semiconductor layer, in a plan view, and
wherein a length along the first direction of the overlapping part of the first electrode layer with the second semiconductor layer is longer than a length along the first direction of the first gate electrode.

2. The display apparatus of claim 1 , wherein the first electrode layer is in a layer between the data line and the first semiconductor layer.

3. The display apparatus of claim 1 , further comprising:
a third thin-film transistor comprising a third semiconductor layer and two third gate electrodes on a same layer;
a connecting unit electrically connecting the first gate electrode and the third semiconductor layer; and
a second electrode layer overlapping a part of the third semiconductor layer between the two third gate electrodes of the third thin-film transistor.

4. The display apparatus of claim 3 , wherein the first voltage line is between the data line and the connecting unit, in a plan view.

5. The display apparatus of claim 3 , a voltage of the first voltage line and a voltage of the second electrode layer are the same.

6. The display apparatus of claim 1 , further comprising:
a fourth thin-film transistor comprising a fourth semiconductor layer and two fourth gate electrodes on a same layer;
a connecting unit electrically connecting the first gate electrode and the fourth semiconductor layer; and
a second voltage line electrically connected to the fourth semiconductor layer and overlapping a part of the fourth semiconductor layer between the two fourth gate electrodes of the fourth thin-film transistor.

7. The display apparatus of claim 6 , wherein the first voltage line is between the data line and the connecting unit, in a plan view.

8. A display apparatus comprising:
a first thin-film transistor comprising a first semiconductor layer and a first gate electrode;
a first electrode layer overlapping the first gate electrode;
a first voltage line extended in a first direction and electrically connected to the first electrode layer;
a second thin-film transistor comprising a second semiconductor layer electrically connected to the first gate electrode;
a first signal line extending in a second direction perpendicular to the first direction and overlapping the second semiconductor layer twice; and
a second voltage line extending in the second direction and spaced apart from the first signal line,
wherein the second voltage line overlaps a part of the second semiconductor layer between the two overlapped parts of the first signal line and the second semiconductor layer.

9. The display apparatus of claim 8 , further comprising:
a first connecting unit electrically connecting the first gate electrode and the second semiconductor layer; and
a second connecting unit electrically connecting the second voltage line and the second semiconductor layer.

10. The display apparatus of claim 8 , further comprising:
a third thin-film transistor comprising a third semiconductor layer electrically connected to the first gate electrode;
a second signal line extending in the second direction and overlapping the third semiconductor layer twice; and
a second electrode layer overlapping a part of the third semiconductor layer between the two overlapped parts of the second signal line and the third semiconductor layer.

11. The display apparatus of claim 10 , further comprising:
a first connecting unit electrically connecting the first gate electrode, the second semiconductor layer, and the third semiconductor layer; and
a second connecting unit electrically connecting the second voltage line and the second semiconductor layer.

12. The display apparatus of claim 10 , a voltage of the first voltage line and a voltage of the second electrode layer are the same.

13. A display apparatus comprising:
a first thin-film transistor comprising a first semiconductor layer and a first gate electrode;
a first electrode layer overlapping the first gate electrode;
a first voltage line extended in a first direction and electrically connected to the first electrode layer;
a second thin-film transistor comprising a second semiconductor layer electrically connected to the first gate electrode;
a signal line extending in a second direction perpendicular to the first direction and overlapping the second semiconductor layer twice; and
a second electrode layer overlapping a part of the second semiconductor layer between the two overlapped parts of the signal line and the second semiconductor layer.

14. The display apparatus of claim 13 , a voltage of the first voltage line and a voltage of the second electrode layer are the same.

15. The display apparatus of claim 13 , wherein the second electrode layer is a protruding part of the first electrode layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Yangwan
• Kwak Wonkyu
• Noh Jaedu
• Lee Jaeyong

Classifications

• G02F1/13629

  Multilayer wirings · CPC title

• G02F1/136218

  Shield electrodes · CPC title

• G02F1/136213

  Storage capacitors associated with the pixel electrode · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10D86/441 Primary

  Interconnections, e.g. scanning lines · CPC title