Invention Grant
US09552794B2 Pre-discharge circuit for multiplexed LED display 有权
多路LED显示屏的放电前电路

Pre-discharge circuit for multiplexed LED display
Abstract:
A system includes an output driver circuit configured to operate a light emitting diode (LED) display having a plurality of columns of LED devices. The output driver circuit is configured to drive a given column output for the plurality of columns of LED devices in response to being activated based on data and an driver on signal supplied to the output driver circuit. A pre-discharge circuit includes a separate discharge circuit connected to each of the column outputs. The pre-discharge circuit is configured to discharge the given column output for a predetermined period of time before the output driver circuit is activated.
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