IP Library Granted Patent US 6,975,367
Granted Patent B2
US 6,975,367 · App. 10/669,378 · Granted Dec 13, 2005

Liquid crystal display panel and method of fabricating the same

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,975,367
App. No.
10/669,378
Granted
Dec 13, 2005
Kind
B2
Abstract

A liquid crystal display panel includes a plurality of gate lines and data lines formed on a substrate, a plurality of pixel electrodes receiving data signals having different polarities from each other, a semiconductor layer formed along a direction of each of the data lines at a lower part of the data lines, and a plurality of light-shielding patterns formed along the direction of the data lines, wherein each of the light-shielding patterns overlap opposing edges of the data line and the semiconductor layer.

Claims (36)

1. A liquid crystal display panel, comprising:

a plurality of gate lines and data lines formed on a substrate;

a plurality of pixel electrodes receiving data signals having different polarities from each other;

a semiconductor layer formed along a direction of each of the data lines at a lower part of the data lines to extend past edge portions of the data lines; and

a plurality of light-shielding patterns formed along the direction of the data lines to extend past the edge portions of the data lines.

2. A liquid crystal display panel, comprising:

a plurality of gate lines and data lines formed on a substrate;

a plurality of pixel electrodes receiving data signals having different polarities from each other;

a semiconductor layer formed along a direction of each of the data lines at a lower part of the data lines; and

a plurality of light-shielding patterns formed along the direction of the data lines,

wherein each of the light-sheilding patterns overlap opposing edges of the data line and the semiconductor layer and width of the semiconductor layer is larger than a width of the data line.

3. The liquid crystal display panel according to claim 2 , wherein the light-shielding patterns and the gate include the same materials.

4. The liquid crystal display panel according to claim 3 , wherein the light-shielding patterns include at least one of aluminum, aluminum-neodymium, and copper.

5. The liquid crystal display panel according to claim 2 , further comprising a protective film formed to cover the data line, and source and drain electrodes of a thin film transistor.

6. The liquid crystal display panel according to claim 5 , wherein the protective film includes inorganic insulating material.

7. The liquid crystal display panel according to claim 6 , wherein the light-shielding patterns are separated from the pixel electrode by about 1 μm, and a first one of the light-shielding patterns is separated from a second one of the light-shielding patterns by about 4 μm.

8. The liquid crystal display panel according to claim 5 , wherein the protective film includes organic insulating material.

9. A method of fabricating a liquid crystal display panel, comprising the steps of:

forming a gate electrode, a gate line, and individual first and second light-shielding patterns on a substrate;

forming a gate insulating film on the substrate to cover the gate electrode, the gate line, and the individual first and second light-shielding patterns;

forming a semiconductor layer on the gate insulating film to partially overlap the individual first and second light-shielding patterns;

forming a data line on the gate insulating film to partially overlap the individual first and second light-shielding patterns and the semiconductor layer, a source electrode that is connected to the data line, and a drain electrode that faces the source electrode with the semiconductor layer therebetween;

forming a protective film having a contact hole that exposes a portion of the drain electrode; and

forming a plurality of pixel electrodes on the protective film,

wherein adjacent ones of the pixel electrodes receive pixel voltages having different polarities.

10. The method according to claim 9 , wherein the protective film includes inorganic insulating material.

11. The method according to claim 10 , wherein the light-shielding patterns are separated from the pixel electrodes by about 1 μm, and a first one of the light-shielding patterns is separated from a second one of the light-shielding patterns by about 4 μm.

12. The method according to claim 9 , wherein the protective film includes organic insulating material.

13. The method according to claim 9 , wherein the first and second light-shielding patterns include at least one of aluminum, aluminum-neodymium, and copper.

14. A method of fabricating a liquid crystal display panel, comprising the steps of:

forming a gate electrode, a gate line, and individual first and second light-shielding patterns on a substrate;

forming a gate insulating film on the substrate to cover the gate electrode, the gate line, and the individual first and second light-shielding patterns;

forming a semiconductor layer on the gate insulating film to partially overlap the individual first and second light-shielding patterns;

forming a data line on the gate insulating film to partially overlap the individual first and second light-shielding patterns and the semiconductor layer;

forming a protective film on the data line; and

forming a plurality of pixel electrodes on the protective film.

Assignments (2)
CHANGE OF NAME Recorded Jun 19, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021147/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2003
From: LIM, BYOUNG HO
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 014544/0896 →