Liquid crystal display device and method of fabricating thereof

• US 7,554,641 B2
• Filed: 12/22/2006
• Issued: 06/30/2009
• Est. Priority Date: 12/28/2005
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kazuyoshi, Nagayama
• Primary Examiner(s): Wood; Kevin S
• Application Number:
  US11/643,937
• Publication Number:
  US 20070188691A1
• Time in Patent Office: 921 Days
• Field of Search: 349139-148
• US Class Current: 349/141
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]

Abstract

A liquid crystal display device is disclosed that may prevent crosstalk from occurring. The liquid crystal display device includes pixel and common electrodes forming a fringe field, wherein the pixel electrodes are substantially in parallel over the common electrode and the pixel electrodes are connected with one another in a central portion.

Claims

1. A liquid crystal display device, comprising:

pixel and common electrodes forming a fringe field in a pixel,

wherein the pixel electrodes are formed in parallel over the common electrode, and the pixel electrodes are connected with one another in a central portion and the pixel electrodes overlaps over the common electrode for forming the fringe field, and

further wherein a width between two ends of the adjacent pixel electrodes is smaller than a width between two central portions of the adjacent pixel electrodes in the pixel.

2. The device of claim 1, wherein the width of the end of pixel electrode is larger than the width of the central portion of pixel electrode.

3. The device of claim 1, wherein the width of the central portion of pixel electrode is smaller than the width of the end of each pixel electrode.

4. The device of claim 1, wherein the pixel electrodes have a plane shape.

5. A method of fabricating for a liquid crystal display device, comprising:

forming a common electrode in a pixel; and

forming a plurality of pixel electrodes in parallel over the common electrode, and a central connection line connected with the plurality of pixel electrodes over the common electrode in a central portion of the pixel, wherein the common and pixel electrodes, including the connection line, forms a fringe field, wherein the pixel electrodes and the connection line overlap over the common electrode in the pixel; and

further wherein a width between two ends of the adjacent pixel electrodes, among the plurality of pixel electrodes in parallel, is smaller than a width between two central portion of the adjacent pixel electrodes.

6. The method of claim 5, wherein the width of the end of pixel electrode is larger than the width of the central portion of pixel electrode.

7. The method of claim 5, wherein the width of the central portion of pixel electrode is smaller than the width of the end of the pixel electrode.

8. The method of claim 5, wherein the pixel electrodes are formed in a plane shape.