Active matrix substrate, for use in a liquid crystal display and method for producing the same
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United States of America Patent
Stats
-
Mar 2, 1999
Grant Date -
N/A
app pub date -
Mar 12, 1997
filing date -
Mar 15, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An active matrix substrate includes a switching device; a scanning line electrically connected to the switching device; a signal line electrically connected to the switching device and arranged so as to cross the scanning line; an interlayer insulation layer formed over the switching device, the scanning line and the signal line, the interlayer insulation layer having a contact hole; and a picture element electrode provided on the interlayer insulation layer and electrically connected to the switching device through the contact hole. The picture element electrode has a recessed portion in the contact hole, and a buried portion formed of an insulation material is provided in the recessed portion so that a top surface of the buried portion and a top surface of the picture element electrode are at an identical level.
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