Circuit board with EMI suppression
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 15, 2004
Grant Date -
Nov 6, 2003
app pub date -
Jul 31, 2001
filing date -
Aug 1, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microstrip-type of circuit board is used as a source driver for a liquid crystal display. Video signal buses extend in a longitudinal direction on the board. Along a centerline of the longitudinal direction of the board, there are provided through vias to which a signal from a tab driver is propagated. Each video signal bus has a plurality of through vias disposed symmetrically with respect to the though vias disposed along the centerline of the longitudinal direction of the board, with tab leads electrically connected to the symmetrically disposed through via. The substantial symmetry of the circuit board provides the advantage of substantially suppressing EMI.
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