IP Library Granted Patent US 8,866,198
Granted Patent B2
US 8,866,198 · App. 13/103,615 · Granted Oct 21, 2014

Display device and method for manufacturing the same

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,866,198
App. No.
13/103,615
Granted
Oct 21, 2014
Kind
B2
Abstract

The present invention relates to a display device and a method of manufacturing the display device. The display device includes an insulation substrate, a gate conductor including a gate line and a gate electrode, an organic layer on the insulation substrate and the gate line, and a data conductor including a data line, a drain electrode, and a source electrode. The data line crosses the gate line. The gate electrode, the drain electrode, and the source electrode form a transistor, and a thickness of the gate electrode may be larger than a thickness of the gate line.

Claims (37)

1. A display device, comprising:

a substrate;

a gate conductor comprising a gate line and a gate electrode, the gate conductor being disposed on the substrate;

an organic layer disposed on the substrate and the gate line, wherein the organic layer exposes at least a portion of the gate electrode; and

a data conductor comprising a data line, a drain electrode, and a source electrode,

wherein the data line crosses the gate line with the organic layer being disposed between the data line and the gate line, and

wherein a thickness of the gate electrode is larger than a thickness of the gate line.

2. The display device of claim 1 , further comprising:

a gate insulating layer disposed on the organic layer and on the gate electrode.

3. The display device of claim 2 , wherein the organic layer and the gate electrode have a level surface.

4. The display device of claim 3 , wherein the gate insulating layer is disposed on a flat surface of the organic layer and a flat surface of the gate electrode.

5. The display device of claim 4 , further comprising:

a semiconductor disposed between the gate insulating layer and the data conductor.

6. The display device of claim 1 , wherein the thickness of the gate line is in a range of 3,000 Å to 20,000 Å.

7. The display device of claim 6 , wherein the thickness of the gate insulating layer is 500 Å.

8. The display device of claim 1 , wherein the gate line and the gate electrode each comprise a first conductive layer, and the gate electrode, but not the gate line, comprises a second conductive layer.

9. The display device of claim 8 , wherein the first conductive layer comprises a titanium-based metal and the second conductive layer comprises a copper-based metal.

10. The display device of claim 1 , wherein each of a first conductive layer and an etching stop conductive layer comprise the gate line, and wherein each of the first conductive layer, the etching stop conductive layer, and a second conductive layer comprise the gate electrode.

11. The display device of claim 10 , wherein the etching stop conductive layer comprises a titanium-based metal and the first conductive layer and the second conductive layer comprise a copper-based metal.

12. A display device, comprising:

a substrate;

a gate conductor comprising a gate line and a gate electrode, the gate conductor being disposed on the substrate;

an organic layer disposed on the substrate and the gate line, wherein the organic layer exposes at least a portion of the gate electrode;

an insulating layer; and

a data conductor comprising a data line, a drain electrode, and a source electrode,

wherein the data line crosses the gate line with the organic layer and the insulating layer being disposed between the data line and the gate line, and

wherein a thickness of the gate electrode is larger than a thickness of the gate line.

13. The display device of claim 12 , wherein the insulating layer is disposed between the organic layer and the data line.

14. The display device of claim 12 , wherein the organic layer is disposed directly on the substrate and directly on the gate line.

15. The display device of claim 14 , wherein the organic layer is further disposed directly on a side surface of the gate electrode.

16. The display device of claim 15 , wherein the insulating layer is disposed directly on an uppermost surface of the gate electrode.

17. The display device of claim 12 , further comprising:

a semiconductor disposed on the gate electrode and under the source electrode and the drain electrode.

18. The display device of claim 17 , wherein the insulating layer is disposed between the gate electrode and the semiconductor.

19. The display device of claim 18 , wherein a lower surface of the insulating layer is disposed directly on the gate electrode, and a lower surface of the semiconductor is disposed directly on an upper surface of the insulating layer.

20. The display device of claim 12 , wherein an upper surface of the gate electrode and an upper surface of the organic layer together form a substantially planar surface on the substrate.

21. The display device of claim 20 , wherein the insulating layer is disposed directly on the upper surface of the gate electrode and directly on the upper surface of the organic layer.

Assignments (2)
CHANGE OF NAME Recorded Aug 28, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 028860/0076 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 9, 2011
From: KANG, MIN; JU, JIN HO; LEE, JONG KWANG
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 026246/0331 →