Array substrate for a liquid crystal display and method for fabricating thereof

• US 6,919,931 B2
• Filed: 06/29/2001
• Issued: 07/19/2005
• Est. Priority Date: 09/04/2000
• Status: Expired due to Term

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Chae, Gee-Sung
• Primary Examiner(s): Wille, Douglas
• Assistant Examiner(s): Peralta, Ginette
• Application Number:
  US09/893,962
• Publication Number:
  US 20020027621A1
• Time in Patent Office: 1,481 Days
• Field of Search: 257 81- 82, 257/88, 349/40, 349/54
• US Class Current: 349/40
• CPC Class Codes: G02F 1/13458 Terminal pads
• CPC Class Codes: G02F 1/136204 Arrangements to prevent high voltage or static electricity failures
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line

Abstract

An LCD fabricated by forming gate lines, gate electrodes, gate pads, vertical patterns, and a first gate shorting bar on a substrate, forming channels over the gate electrodes, forming data lines, source electrodes, drain electrodes, and a second shorting bar, forming a passivation layer, patterning the passivation layer to form drain contact holes to the drain electrodes, data pad contact holes to the data pads, first connecting contact holes to the first gate shorting bar, second connecting contact holes to the second gate shorting bar, and etching holes to the vertical patterns, forming a transparent conductive layer, and patterning the transparent conductive layer to form pixel electrodes, first pad connectors that connect odd numbered gate pads to the first gate shorting bar, and second pad connectors that connect the even numbered gate pads to the second gate shorting bar, wherein the vertical patterns are etched via the etching holes.

Claims

1. An array substrate, comprising:

a substrate;

a first gate shorting bar on the substrate, the first gate shorting bar having a plurality of first connecting contact holes;

a second gate shorting bar spaced apart from and parallel to the first gate shorting bar, the second gate shorting bar having a plurality second connecting contact holes;

a plurality of gate lines on the substrate and perpendicular to the first and second gate shorting bars, the gate lines comprising odd numbered gate lines and even numbered gate lines;

a plurality of gate pads comprising odd numbered gate pads connected to the ends of odd numbered gate lines and even numbered gate pads connected to the ends of even numbered gate lines, wherein each gate pad of said plurality of gate pads has a corresponding gate pad contact hole;

a plurality of first pad connectors, each connecting an odd numbered gate pad to the first gate shorting bar via the corresponding gate pad contact hole and via a corresponding first connecting contact hole; and

a plurality of second pad connectors, each connecting an even numbered gate pad to the second gate shorting bar through the corresponding gate pad contact hole and via a corresponding second connecting contact hole.

2. The array substrate according to claim 1, wherein the plurality of gate lines include copper (Cu).

3. The array substrate according to claim 1, further including:

a plurality of data lines that cross the plurality of gate lines so as to define a plurality of pixel regions;

a plurality of thin film transistors, each thin film transistor having an associated pixel region; and

a plurality of pixel electrodes, wherein each pixel electrode is located within an associated pixel region.

4. The array substrate according to claim 3, wherein each thin film transistor includes a gate electrode, a source electrode and a drain electrode.

5. The array substrate according to claim 3, wherein the first pad connectors, the second pad connectors, and the plurality of pixel electrodes are formed of a transparent conductive material.

6. The array substrate according to claim 5, wherein the transparent conductive material includes at least one material from a group consisting of indium-tin-oxide (ITO) and indium-zinc-oxide (IZO).