IP Library Granted Patent US 8,848,151
Granted Patent B2
US 8,848,151 · App. 12/899,306 · Granted Sep 30, 2014

Liquid crystal display device

Inventor: Do Young Lee (Seoul, KR)
Assignee: LG Display Co., Ltd.
G02F1/136286G02F2001/13606G02F1/134363
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Quick Facts
Patent No.
US 8,848,151
App. No.
12/899,306
Granted
Sep 30, 2014
Kind
B2
Abstract

A liquid crystal display device includes gate and data lines on a first substrate, wherein the gate lines cross the data lines to define sub-pixels, a thin film transistor to where the gate lines cross the data lines, a pixel electrode connected to the thin film transistor, a common electrode in a first sub pixel, wherein a first parasitic capacitance between a first data line arranged at the left side of the first sub-pixel and the common electrode is smaller than a second parasitic capacitance between a second data line arranged at the right side of the first sub-pixel and the common electrode; and a second substrate bonded to the first substrate with a layer of liquid crystal molecules therebetween, wherein the pixel electrode overlaps the common electrode and has a plurality of slits.

Claims (20)

1. A liquid crystal display device, comprising:

gate and data lines on a first substrate, wherein the gate lines cross the data lines to define sub-pixels;

a thin film transistor adjacent to where the gate lines cross the data lines;

a pixel electrode connected to the thin film transistor;

a common electrode in a first sub pixel, wherein a first parasitic capacitance between a first data line arranged at the left side of the first sub-pixel and the common electrode is smaller than a second parasitic capacitance between a second data line arranged at the right side of the first sub-pixel and the common electrode; and

Wherein the pixel electrode overlaps the common electrode and has a plurality of slits.

2. The liquid crystal display device as claimed in claim 1 , wherein the layer of liquid crystal molecules is driven in a fringe field switching mode by a fringe electric field between the pixel electrode and the common electrode.

3. The liquid crystal display device, comprising: as claimed in claim 1 ,

wherein the data lines are applied with data voltages in a dot inversion mode.

4. The liquid crystal display device as claimed in claim 1 ,

wherein the data lines carry a data voltage of alternating current voltage and the common electrode carry a common voltage of direct current voltage.

5. A liquid crystal display device, comprising:

gate and data lines on a first substrate to define sub-pixels;

a thin film transistor adjacent to where the gate lines cross the data lines;

a pixel electrode connected to the thin film transistor;

a common electrode in a first sub pixel, wherein a first parasitic capacitance between a first data line arranged at the left side of the first sub-pixel and the common electrode is different from a second parasitic capacitance between a second data line arranged at the right side of the first sub-pixel and the common electrode; and

a second substrate bonded to the first substrate with a layer of liquid crystal molecules therebetween,

wherein the pixel electrode overlaps the common electrode and has a plurality of slits.

6. The liquid crystal display device as claimed in claim 5 ,

wherein the data lines carry a data voltage of alternating current voltage and the common electrode carry a common voltage of direct current voltage.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2025
From: LG DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO. LTD.
Reel/Frame 072238/0507 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2025
From: LEE, DO YOUNG
To: LG.PHILIPS LCD CO. LTD.
Reel/Frame 071439/0985 →
CHANGE OF NAME Recorded Jun 17, 2025
From: LG.PHILIPS LCD CO. LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 071638/0446 →
Priority Claims (1)
KR P2005-123064 · Dec 14, 2005 · national
Continuity (2)
Division 11638519 · Dec 14, 2006
Related Publication 20110018790A1 · Jan 27, 2011