Liquid crystal display panel

• US 7,304,691 B2
• Filed: 06/24/2004
• Issued: 12/04/2007
• Est. Priority Date: 06/24/2003
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Yun, Sang Chang, Yun, Sai Chang, Lee, Jae Woo, Song, Hong Sung
• Primary Examiner(s): NGO, HUYEN LE
• Application Number:
  US10/874,166
• Publication Number:
  US 20040263710A1
• Time in Patent Office: 1,258 Days
• Field of Search: 349/110, 349/139, 349/141, 349/143, 349/38, 349/39
• US Class Current: 349/39
• CPC Class Codes: G02F 1/1362 Active matrix addressed cells G02F1/134336, G02F1/134363 take precedence
• CPC Class Codes: G02F 1/136218 Shield electrodes
• CPC Class Codes: G09G 2320/0209 Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display

Abstract

A liquid crystal display panel capable of reducing a capacitance of a parasitic capacitor between a data line and a pixel electrode. The liquid crystal display panel comprises: a thin film transistor at a crossing of a gate line and a data line, liquid crystal cells including a pixel electrode connected to the thin film transistor; first shield patterns in the liquid crystal cells, each shield pattern being parallel to the data line without overlapping the data line, wherein the shield patterns are insulated from and overlap with an outer portion of the pixel electrode; and a common line arrayed to connect the shield patterns for each the liquid crystal cell.

Claims

1. A liquid crystal display panel, comprising:

a thin film transistor at a crossing of a gate line and a data line, liquid crystal cells including a pixel electrode connected to the thin film transistor;

first shield patterns in the liquid crystal cells, each first shield pattern being parallel to the data line without overlapping the data line, wherein the first shield patterns are insulated from and overlap an outer portion of the pixel electrode; and

a common line integrally connected to the first shield patterns and arranged to connect the first shield patterns for the liquid crystal cells,

wherein a common voltage is supplied to the first shield patterns via the common line.

2. The liquid crystal display panel according to claim 1, wherein the common line crosses the pixel electrode.

3. The liquid crystal display panel according to claim 2, further comprising a second shield pattern, the second shield pattern connected to the first shield patterns, wherein the second shield pattern is parallel to the gate line without overlapping data lines and overlapped with the outer portion of the pixel electrode.

4. A liquid crystal display panel, comprising:

a plurality of gate lines;

a plurality of data lines

a thin film transistor formed at crossings of the gate and data lines;

a shield pattern in each of the liquid crystal cells, wherein the shield pattern is parallel to the plurality of data lines and overlaps side portions of a pixel electrode; and

a common line arranged to cross the liquid crystal cells, wherein the common line and shield pattern are integrally connected,

wherein a common voltage is supplied to the shield pattern via the common line.

5. The liquid crystal display panel of claim 4, wherein the common line is parallel to a gate line of a previous stage without overlapping the gate line, wherein the common line overlaps an upper portion of the pixel electrode.