Liquid crystal display device having redundancy repair pattern and method of forming and using the same
AssigneeLG.Philips LCD Co., Ltd.
InventorKi-Sul Cho
Life of this patent
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Abstract
A liquid crystal display device adopting a storage-on-common method is disclosed to prevent the operation of a unit pixel with a point deficiency, such as a brilliant spot, at its occurrence, thereby preventing degradation of a picture quality caused due to the defective pixel. Because the defective pixel is controlled to turn black by the use of a repair pattern, the picture quality degradation due to the defective pixel is prevented when the liquid crystal display device is driven.
Claims9
A liquid crystal display device comprising:
- a plurality of gate lines each having a repair pattern for at least one unit pixel;
- a plurality of data lines arranged to cross the gate lines;
- a pixel electrode formed at a unit pixel region defined as one of the gate line and one of the data lines intersect;
- a storage line overlapping with the pixel electrode;
- and
- wherein the repair pattern includes protrusions extending in opposite directions from a portion of the gate line, so as to be formed under two adjacent pixel electrodes.
A redundancy repair pattern structure usable in a display device, the device including a plurality of gate lines and data lines crossing each other, a plurality
- of pixel electrodes each at an intersection of the corresponding gate and data lines, and a plurality of storage lines parallel to the gate lines, the structure comprising:
- a redundancy repair pattern extending from each of the gate lines and formed under a pixel electrode;
- and
- wherein the repair pattern includes protrusions extending in opposite directions from a portion of the gate line, so as to be formed under two adjacent pixel electrodes.
A method for providing a liquid crystal display device, the method comprising:
- forming a gate line having a repair pattern including protrusions extending in opposite directions from a portion of the gate line on a substrate;
- forming a gate insulation film, a semiconductor layer and a conductive layer on the substrate;
- forming source/drain electrodes;
- forming a passivation layer on the source/drain electrodes;
- and
- forming a pixel electrode on the passivation layer such that the pixel electrode overlaps with the repair pattern.
Dependencies are inferred from the claim text.