In-plane switching mode liquid crystal display and method for manufacturing the same, comprising first and second black matrix lines

An in-plane switching mode liquid crystal display comprising:

• first and second transparent insulating substrates opposing each other;
• a gate line over the first transparent insulating substrate;
• a data line intersecting the gate line, the data line having at least one bent structure;
• a common line disposed apart from and in parallel to the gate line;
• a common electrode branched from the common line, the common electrode having at least one bent structure parallel to the data line;
• a thin film transistor positioned at an intersection of the gate line and the data line, the thin film transistor having a gate electrode, a semiconductor layer, a source electrode, and a drain electrode;
• a pixel electrode alternately disposed with the common electrode, the pixel electrode having at least one bent structure, the pixel electrode being connected to the drain electrode;
• a black matrix formed over the second transparent insulating substrate to block light;
• a color filter over a pixel area that is defined by a black matrix;
• first and second alignment layers covering an entire surface of the first and second transparent insulating substrates and where a rubbing processing is performed;
• and
• a liquid crystal layer between the first and second transparent insulating substrates,
• wherein the black matrix comprises two first black matrix lines covering an area where light leakage is minimal, and two second black matrix lines covering an area where light leakage is excessive, the second black matrix lines having a line width larger than the line widths of the first black matrix lines,
• wherein the area where light leakage is minimal and the area where light leakage is excessive are formed by the bent structure of the common electrode, and
• wherein one of the two first black matrix lines and one of the two second black matrix lines are connected with a predetermined angle to be opposite to each other and to be asymmetrical with respect to each other, and one of the two first black matrix lines and the other of the two second black matrix lines are disposed in parallel.

A method for manufacturing an in-plane switching mode liquid crystal display, the method comprising:

• forming a TFT array substrate where each of a side line and a data line of each of a pixel electrode and a common electrode have at least one bent structure;
• forming a color filter array substrate comprising a black matrix opposing the TFT array substrate and defines a pixel area corresponding to the bent structure, wherein the black matrix comprises two first black matrix lines covering an area where light leakage is minimal, and two second black matrix lines covering an area where light leakage is excessive, the second black matrix lines having a line width larger than the line width of the first black matrix lines, wherein the area where light leakage is minimal and the area where light leakage is excessive are formed by the bent structure of the common electrode, wherein one of the two first black matrix lines are and one of the two second black matrix lines are connected with a predetermined angle to be opposite to each other and to be asymmetrical with respect to each other, and one of the two first black matrix lines and the other of the two second black matrix lines are disposed in parallel;
• and
• forming a liquid crystal layer between the TFT array substrate and the color filter array substrate and assembling the two substrates.