Active matrix LED pixel driving circuit and layout method
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Aug 12, 2015
filing date -
Sep 19, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A unit pixel driver circuit includes a capacitor configured to store a voltage corresponding to a desired pixel brightness and a control block. The control block may include a first, second third and fourth transistors, all of which are connected together, both in parallel and in series. The control block controls, based on the voltage stored in the capacitor, the amount of current flowing through a pixel LED. The first transistor, second transistor, third transistor and fourth transistor all share a common gate geometry size.
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