Array substrate for IPS mode liquid crystal display device and method for fabricating the same
First Claim
1. An array substrate for in-plane switching mode liquid crystal display device, comprising:
- a substrate having a plurality of pixel regions;
a plurality of gate lines and a plurality of common lines in horizontal direction;
a plurality of data lines crossing the gate line and the common line;
a thin film transistor at a cross point of the gate line and the data line, the thin film transistor having a gate electrode, an active layer, a source electrode and a drain electrode;
a pixel electrode having an extension portion, a vertical portion and a horizontal portion, the extension portion being extended from the drain electrode to the pixel region, the vertical portion being vertically extended from the extension portion and the horizontal portion being over the common line and being connected to the vertical portion;
a common electrode having a plurality of vertical portions and a horizontal portion, the plurality of the vertical portions being vertically extended from the common line and arranged in an alternating pattern with the vertical portion of the pixel electrode, the horizontal portion connecting the plurality of the vertical portions into one portion; and
an auxiliary line over the horizontal portion of the pixel electrode and being overlapped with the common line.
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Accused Products
Abstract
An array substrate for in-plane switching (IPS) mode liquid crystal display (LCD) device includes a pixel electrode having an extension portion, a vertical portion and a horizontal portion, the extension portion being extended from the drain electrode to the pixel region, the vertical portion being vertically extended from the extension portion and the horizontal portion being over the common line and being connected to the vertical portion. The device includes a common electrode having a plurality of vertical portions and a horizontal portion, the plurality of the vertical portions being vertically extended from the common line and arranged in an alternating pattern with the vertical portion of the pixel electrode, the horizontal portion connecting the plurality of the vertical portions into one. An auxiliary line is over the horizontal portion of the pixel electrode and being overlapped with the common line.
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Citations
19 Claims
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1. An array substrate for in-plane switching mode liquid crystal display device, comprising:
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a substrate having a plurality of pixel regions;
a plurality of gate lines and a plurality of common lines in horizontal direction;
a plurality of data lines crossing the gate line and the common line;
a thin film transistor at a cross point of the gate line and the data line, the thin film transistor having a gate electrode, an active layer, a source electrode and a drain electrode;
a pixel electrode having an extension portion, a vertical portion and a horizontal portion, the extension portion being extended from the drain electrode to the pixel region, the vertical portion being vertically extended from the extension portion and the horizontal portion being over the common line and being connected to the vertical portion;
a common electrode having a plurality of vertical portions and a horizontal portion, the plurality of the vertical portions being vertically extended from the common line and arranged in an alternating pattern with the vertical portion of the pixel electrode, the horizontal portion connecting the plurality of the vertical portions into one portion; and
an auxiliary line over the horizontal portion of the pixel electrode and being overlapped with the common line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for fabricating an array substrate for in-plane switching mode liquid crystal display device, comprising:
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forming a plurality of gate lines, a plurality of common lines and a dummy line on an array substrate, the gate line and the common line being formed in a horizontal direction and spaced apart from each other, the dummy line being formed in a non-display area;
forming a plurality of data lines crossing the gate line and the common line;
forming a thin film transistor at a cross point of the gate line and the data line, the thin film transistor having a gate electrode, an active layer, a source electrode and a drain electrode;
forming a pixel electrode having an extension portion, a vertical portion and a horizontal portion, the extension portion being extended from the drain electrode, the vertical portion being vertically extended from the extension portion and the horizontal portion being over the common line and connected to the vertical portion;
forming a common electrode having a plurality of vertical portions and a horizontal portion, the plurality of the vertical portions being vertically extended from the common line and arranged in an alternating pattern with the vertical portion of the pixel electrode, the horizontal portion connecting the plurality of the vertical portions into one portion; and
forming an auxiliary line over the horizontal portion of the pixel electrode, the auxiliary line being overlapped with the common line and one end of the auxiliary line communicating with the dummy line. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification