Appeal No. 97-2860
Application 08/472,836
Thus, the present invention reduces the
amount of Leak Light emitted through the
Aperture Area of the front glass substrate
101 by an amount which is proportional to
the difference (2 -2 ), relative to the
2 1
aforesaid prior art active matrix LCD,
thereby significantly increasing the
contrast ratio thereof, vis-a-vis that of
said prior art active matrix LCD.
In Kim’s column 5, lines 48-64, it is stated:
Yet further, as can be most clearly
seen in FIG. 2C, in the present invention,
an edge portion of each pixel electrode 4
preferably overlaps the first electrode 10
of its associated storage capacitor C by a
predetermined width sufficient to ensure
that the peripheral boundary of each pixel
electrode 4 is formed on the same plane as
the first electrode 10 of its associated
storage capacitor C, without having to
traverse an abrupt step. By contrast, with
the prior art active matrix LCD, an abrupt
step is necessarily formed at the boundary
between each pixel electrode 4 and the
distal edge of the first electrode 10 of
its associated storage capacitor C. As
such, problems such as attenuation or
cracking of the pixel electrode pattern due
to inadequate step coverage are inevitable,
thereby resulting in decreased yield and
increased manufacturing difficulties and
costs. The present invention eliminates
these problems.
For both of the above-quoted disclosed advantages, one
with ordinary skill in the art would have known to implement
Kim’s select line pattern in the crystal display of Miyata.
7
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