Layout structure of electrode lead wires for organic led display

• US 7,028,898 B2
• Filed: 04/12/2002
• Issued: 04/18/2006
• Est. Priority Date: 04/12/2002
• Status: Active Grant

• Current Assignee: Wintek Corporation
• Original Assignee: Wintek Corporation
• Inventors: Chang, Ching-Yun
• Primary Examiner(s): LE, THIEN MINH
• Application Number:
  US10/121,819
• Publication Number:
  US 20030193792A1
• Time in Patent Office: 1,467 Days
• Field of Search: 23546201-46225, 235/455, 235/454, 347/238, 257/10, 257/100, 257/88, 257/89, 257/130, 361/778
• US Class Current: 235/454
• CPC Class Codes: H10K 59/179 Interconnections, e.g. wiring lines or terminals

Abstract

A layout structure of electrode lead wires for organic light-emitting diode (OLED) display is provided for saving materials, simplifying fabrication process, and reducing power consumption so as to lower down the required driving voltage. The display comprises a plurality of cathode and anode electrodes and a plurality of electrode lead wires connected to the cathode electrodes and the anode electrodes respectively. The cathode and the anode lead wires made of a multi-layer metallic material having high conductivity and low impedance are laid on the same side of the transparent substrate.

Claims

1. A layout structure of electrode lead wires for organic light-emitting diode (OLED) display, in which the display is provided with a plurality of cathode and anode electrodes and an external driving circuit for driving the electrodes, the layout structure comprises:

a transparent substrate having a lateral section perpendicular to an extension direction of the cathode electrodes to serve for an input end of the output signals of the external driving circuit;

a plurality of cathode lead wires connected to the corresponding cathode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate;

a plurality of first anode lead wires connected to one end of the corresponding anode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate; and

a plurality of second anode lead wires connected to one end of the corresponding anode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate.

2. The layout structure according to claim 1, in which the transparent substrate is a glass board or a transparent plastic plate.

3. The layout structure according to claim 1, in which the composition of the cathode electrode includes any element of Aluminum (Al), Magnesium (Mg), and Argentum (Ag).

4. The layout structure according to claim 1, in which the composition of the anode electrode includes Indium-Tin oxide (ITO) or Indium-Zinc oxide (IZO).

5. The layout structure according to claim 1, in which the cathode lead wires, the first anode lead wires, and the second anode lead wires are composed of a first Chrome (Cr) layer, an Aluminum (Al) layer, and a second Chrome (Cr) layer.

6. The layout structure according to claim 1, in which the cathode lead wires, the first anode lead wires, and the second anode lead wires are composed of a first Titan (Ti) layer, an Aluminum (Al) layer, and a second Titan (Ti) layer.

7. The layout structure according to claim 1, in which the cathode lead wires, the first anode lead wires, and the second anode lead wires are composed of any element of Aluminum (Al), Aurum (Au), Palladium (Pd), and Platinum (Pt).

8. A layout structure of electrode lead wires for organic light-emitting diode (OLED) display, in which the display is provided with a plurality of cathode and anode electrodes and an external driving circuit for driving the electrodes, the layout structure comprises:

a transparent substrate having a lateral section perpendicular to an extension direction of the anode electrodes to serve for an input end of the output signals of the external driving circuit;

a plurality of anode lead wires connected to the anode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate;

a plurality of first cathode lead wires connected to one end of the corresponding cathode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate; and

a plurality of second cathode lead wires connected to one end of the corresponding cathode electrodes respectively and uniformly spaced on the lateral section of the transparent substrate.

9. The layout structure according to claim 8, in which the transparent substrate is a glass board or a transparent plastic plate.

10. The layout structure according to claim 8, in which the composition of the anode electrode includes Indium-Tin oxide (ITO) or Indium-Zinc Oxide (IZO).

11. The layout structure according to claim 8 in which the composition of the cathode electrode includes any element of Aluminum (Al), Magnesium (Mg), and Argentum (Ag).

12. The layout structure according to claim 8, in which the anode lead wires, the first cathode lead wires, and the second cathode lead wires are composed of a first Chrome (Cr) layer, an Aluminum (Al) layer, and a second Chrome (Cr) layer.

13. The layout structure according to claim 8, in which the anode lead wires, the first cathode lead wires, and the second cathode lead wires are composed of a first Titan (Ti) layer, an Aluminum (Al) layer, and a second Titan (Ti) layer.

14. The layout structure according to claim 8, in which the anode lead wires, the first cathode lead wires, and the second cathode lead wires are composed of any element of Aluminum (Al), Aurum (Au), Palladium (Pd), and Platinum (Pt).