Liquid crystal display device and defect repairing method therefor
AssigneeFujitsu Limited
InventorsKiyoshi Ozaki, Kouji Tsukao, Satoru Kawai
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Abstract
To provide a liquid crystal display device which allows disconnection defects caused in the manufacturing process to be readily repaired with a higher success rate than conventional cases so that the device can be modified into a non-defective device, and a defect repairing method therefor. In a liquid crystal display device having a lead-out portion provided at a lowermost layer bus line 1 formed on a transparent insulating substrate 6, and a pixel electrode layer 3 formed on the lead-out portion through insulating layers 2, 4, an independent intermediate conductive layer 5 is formed between the lead-out portion and said pixel electrode layer 3.
Claims5
A liquid crystal display device, comprising:
- a lead-out portion led out from a bus line formed on a substrate and extending at an under layer of a pixel electrode through an insulating film;
- and
- an isolated intermediate conductive layer formed in said insulating film between said lead-out portion and said pixel electrode.
A method of repairing a defect in a liquid crystal display device, said method repairing a disconnection defect caused at a bus line formed on a substrate, comprising:
- a first step of irradiating a laser beam upon a pixel electrode and an intermediate conductive layer formed in an insulating film at an under layer of said pixel electrode, thereby electrically connecting said pixel electrode and said intermediate conductive layer;
- and
- a second step of irradiating a laser beam upon said intermediate conductive layer and a lead-out portion led out from said bus line and extending at an under layer of said intermediate conductive layer, thereby electrically connecting said intermediate conductive layer and said lead-out portion.
Dependencies are inferred from the claim text.