Liquid crystal display element and method for treating defective pixels therein
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United States of America Patent
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Jun 9, 1992
Grant Date -
N/A
app pub date -
May 6, 1991
filing date -
May 16, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In an active liquid crystal display element which operates in a normally white mode, there is formed a shorting metal layer which overlaps each pixel electrode and a source bus adjacent thereto. In those portions of the pixel electrode and the source bus overlapping the shorting metal layer there are formed weld metal layers. The pixel electrode of a defective pixel is connected to the corresponding source bus by welding the weld metal layers and the shorting metal layer through irradiation with laser beams to the above-mentioned overlapping portions. As a result of this, the defective pixel becomes a black defect when the liquid crystal display element operates.
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