DISPLAY DEVICE

• US 20130200399A1
• Filed: 07/20/2012
• Published: 08/08/2013
• Est. Priority Date: 02/08/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Guang Hai Jin, Jae-Beom Choi, Jae-Hwan Oh, June-Woo Lee, Kwan-Wook Jung, Moo-Jin Kim
• Inventors: Choi, Jae-Beom, Jung, Kwan-Wook, Kim, Moo-Jin, Oh, Jae-Hwan, Lee, June-Woo, JIN, Guang hai
• Granted Patent: US 9,105,593 B2
• Time in Patent Office: Days
• US Class Current: 257/88
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals

Abstract

A display device includes a first insulation layer on a substrate, gate wires on the first insulation layer, the gate wires extending in a first direction, a second insulation layer on the gate wires, data wires on the second insulation layer, the data wires extending in a second direction crossing the first direction, pixels at intersection regions of gate wires and data wires, respectively, the pixels being connected to respective gate wires and data wires, and data leading diodes having an island form and connected to the data wires, the data leading diodes being configured to induce breakage of the first insulation layer when external static electricity passes through the data wires.

Claims

1. A display device, comprising:

a first insulation layer on a substrate;

gate wires on the first insulation layer, the gate wires extending in a first direction;

a second insulation layer on the gate wires;

data wires on the second insulation layer, the data wires extending in a second direction crossing the first direction;

pixels at intersection regions of gate wires and data wires, respectively, the pixels being connected to respective gate wires and data wires; and

data leading diodes having an island form and connected to the data wires, the data leading diodes being configured to induce breakage of the first insulation layer when external static electricity passes through the data wires.

2. The display device of claim 1, wherein each data leading diode includes:

a first leading pattern having an island form on a same layer as the gate wires, the first leading pattern being connected to a respective data wire; and

a second leading pattern having an island form and facing the first leading pattern, the first insulation layer being between the first and second leading patterns.

3. The display device of claim 2, wherein the first leading pattern includes:

an overlap area overlapping the respective data wire; and

a non-overlap area not overlapping the respective data wire, the second leading pattern overlapping the non-overlap area of the first leading pattern.

4. The display device of claim 2, wherein each pixel includes a thin film transistor connected to a respective gate wire and data wire, and an organic light emitting diode connected to the thin film transistor.

5. The display device of claim 4, wherein the thin film transistor includes:

an active layer on a same layer as the second leading pattern;

a gate electrode on a same layer as the gate wires; and

a source electrode and a drain electrode on a same layer as the data wires.

6. The display device of claim 1, further comprising gate leading diodes having an island form and connected to respective gate wires, the gate leading diodes being configured to induce breakage of the first insulation layer when external static electricity passes through the gate wires.

7. The display device of claim 6, wherein each gate leading diode includes:

a third leading pattern on the gate wires and connected to the gate wires; and

a fourth leading overlapping the third leading pattern, the first insulation layer being between the third and fourth leading patterns.

8. The display device of claim 7, wherein the third leading pattern includes an extended area extending from the gate wires, the fourth leading pattern overlapping the extended area of the third leading pattern.

9. The display device of claim 1, wherein the first insulation layer is thinner than the second insulation layer.

10. The display device of claim 1, wherein the second insulation layer is between the gate wires and the data wires, and a portion of the first insulation layer is inside the data leading diodes.

11. The display device of claim 1, wherein the second insulation layer is between the data leading diodes and the data wires, each data leading diode being connected to a respective data line through the second insulation layer.

12. A display device, comprising:

a first insulation layer on a substrate;

gate wires on the first insulation layer, the gate wires extending in a first direction;

a second insulation layer on the gate wires;

data wires on the second insulation layer, the data wires extending in a second direction crossing the first direction;

pixels at intersection regions of gate wires and data wires, respectively, the pixels being connected to respective gate wires and data wires; and

gate leading diodes having an island form and connected to the gate wires, the gate leading diodes being configured to induce breakage of the first insulation layer when external static electricity passes through the gate wires.