IPS mode liquid crystal display device and method for fabricating thereof
AssigneeLG Display Co., Ltd.
InventorsJoon-Young Yang, Jung-Il Lee
Life of this patent
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Abstract
An IPS mode LCD device and a method for fabricating the same are disclosed. A switching device is formed at each unit pixel and then a passivation layer is formed thereon. A first concave pattern and a second concave pattern at each unit pixel by using one mask are formed, and a common electrode is formed in the first concave pattern and a pixel electrode is formed in the second concave pattern. Accordingly, the entire fabrication process is simplified.
Claims13
An in plane switching (IPS) mode liquid crystal display (LCD) device, comprising:
- a unit pixel defined by a plurality of gate lines and a plurality of data lines crossing the gate lines;
- a common electrode line disposed in the unit pixel;
- a switching device formed in a vicinity of an intersection between the gate lines and the data lines and disposed in the unit pixel;
- a passivation layer for covering the unit pixel;
- at least one first concave pattern formed in the unit pixel that exposes the common electrode line;
- at least one second concave pattern formed in the unit pixel that exposes a drain electrode of the switching device,
- wherein a common electrode electrically connected to the common electrode line is disposed in the first concave pattern, and
- wherein a pixel electrode electrically connected to the drain electrode of the switching device is disposed in the second concave pattern.
An in-plane switching LCD device, comprising:
- a storage line disposed in a unit pixel of the LCD device, the storage line configured to provide a storage voltage;
- a switching device disposed in the unit pixel, the switching device including a drain electrode configured to provide a data signal to a pixel electrode, wherein a portion of the drain electrode overlaps the storage line in the unit pixel to form a storage capacitor;
- a common electrode and a pixel electrode disposed in the unit pixel;
- a first concave area formed over the sudstrate in the unit pixel occupied by the common electrode;
- a second concave area formed over the substrate in the unit pixel occupied by the pixel electrode;
- and an insulating layer disposed over a substrate in the unit pixel except in the first and second concave areas, wherein the common and pixel electrodes apply a horizontal electric field in conjunction with the other.
An in-plane switching LCD device, comprising:
- a common electrode disposed in a first concave pattern in a unit pixel, wherein the first concave pattern exposes a portion of a common electrode line such that the common electrode branches from and electrically connects with the common electrode line, wherein the common and pixel electrodes apply a horizontal electric field in conjunction with each other;
- a pixel electrode disposed in a second concave pattern in the unit pixel, wherein the second concave pattern exposes a portion of a drain electrode of a switching device such that the pixel electrode electrically connects with the drain electrode;
- and
- a storage line disposed in the unit pixel, wherein a portion of the drain electrode of the switching device extends over the storage line to form a storage capacitor.
Dependencies are inferred from the claim text.