LED DISPLAY DEVICE, AND DRIVING METHOD AND CHIP THEREFOR
An LED display device (100), and a driving method and a chip therefor. The LED display device (100) comprises: a display array (160), comprising a plurality of row lines, a plurality of column lines, and a plurality of pixel units, each of the plurality of pixel units comprises an LED connected to o...
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Format: | Patent |
Sprache: | chi ; eng ; fre |
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Zusammenfassung: | An LED display device (100), and a driving method and a chip therefor. The LED display device (100) comprises: a display array (160), comprising a plurality of row lines, a plurality of column lines, and a plurality of pixel units, each of the plurality of pixel units comprises an LED connected to one of the plurality of row lines and one of the plurality of column lines; a row driving module (110), connected to the plurality of row lines and configured to provide a selection signal; a column driving module (120), connected to the plurality of column lines and configured to provide, according to a pulse width modulation signal, a driving signal corresponding to grayscale data; and a channel control module (130), connected to the plurality of column lines and configured to adjust a column line voltage of a corresponding column line to a target voltage in a first time period when a pulse width modulation signal is valid. The present invention can increase the speed of starting by a constant current during displ |
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