FFS mode liquid crystal display panel

Abstract

The present invention provides a fringe field switching (FFS) mode liquid crystal display panel including a plurality of scanning lines 12 and common lines 13 provided in parallel, a plurality of signal lines 14 provided in a crank manner in a direction perpendicular to the scanning lines 12, and pixel electrodes 181 and 182 each formed between the plurality of scanning lines 12 and signal lines 14 in a delta arrangement. Each of the pixel electrodes 181 and 182 has a plurality of slits 171 and 172, respectively, inclined in different directions to each other with respect to an axis x parallel to the scanning lines 12 and positioned between adjacent scanning lines 12. The pixel electrodes 181 in odd-numbered rows and the pixel electrodes 182 in even-numbered rows are inverted to each other with respect to another axis perpendicular to the axis x. With such features, the FFS mode liquid crystal display panel provides symmetrical viewing angle generating no spots in a transverse direction, a wide viewing angle, a bright display with high transmittance and excellent display quality.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing a pattern of scanning lines and common lines formed by a scanning line and common line forming process.

FIG. 2 is a diagram showing a pattern of common electrodes formed by a common electrode forming process.

FIG. 3 is a diagram showing a pattern of semiconductor layers formed by a semiconductor layer forming process.

FIG. 4 is a diagram showing a pattern of signal lines and drain electrodes formed by a signal line and drain electrode forming process.

FIG. 5 is a diagram showing a pattern of contact holes formed by a contact hole forming process.

FIG. 6 is a plan view showing all the patterns of FIGS. 1 to 5 overlapping with each other without taking their vertical positional relationship into consideration.

FIG. 7 is a diagram showing pixel electrodes formed by a pixel electrode forming process.

FIG. 8 is a plan view showing the patterns of FIGS. 6 and 7 overlapping with each other without taking their vertical positional relationship into consideration.

FIG. 9 is a diagram showing a pattern of a black matrix provided on a color filter substrate.

FIG. 10 is a diagram showing the pattern of FIG. 9 overlapped on the pattern of FIG. 7.

FIG. 11 is a schematic plan view of one pixel of an IPS mode LCD panel.

FIG. 12 is a schematic sectional view taken along the line XII-XII of FIG. 11.

FIG. 13 is a schematic plan view of one pixel of an FFS mode LCD panel.

FIG. 14 is a schematic sectional view taken along the line XIV-XIV of FIG. 13.

FIG. 15 is a plan view of one pixel of an FFS mode LCD panel with inclined slits.

FIG. 16 is a plan view of one pixel of an FFS mode LCD panel in a dual-domain structure.

FIG. 17 is a schematic plan view of several pixels of an FFS mode LCD panel 70D in which pixels are provided in a delta arrangement.

Claims

1. A fringe field switching mode liquid crystal display panel, comprising: a plurality of scanning lines and common lines provided in parallel;a plurality of signal lines provided in a crank manner in a direction perpendicular to said scanning lines; anda plurality of pixel electrodes each formed between said plurality of scanning lines and signal lines in a delta arrangement,each of said plurality of pixel electrodes including portions defining a plurality of slits inclined in different directions to each other with respect to an axis parallel to said scanning lines and positioned between adjacent scanning lines, andamong said pixel electrodes, pixel electrodes in odd-numbered rows and pixel electrode in even-numbered rows being inverted to each other with respect to an axis perpendicular to said scanning lines.

2. The fringe field switching mode liquid crystal display panel according to claim 1, wherein said slits provided at both sides of said axis parallel to said scanning lines are same in number on both sides.

3. The fringe field switching mode liquid crystal display panel according to claim 1, wherein said common lines are provided under said pixel electrodes with respect to said axis parallel to said scanning lines.

4. The fringe field switching mode liquid crystal display panel according to claim 1, wherein ends of said slits that are on both sides of and closest to said axis parallel to said scanning lines are coupled on said axis parallel to said scanning lines.