LED display device, driving method and chip thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11741888
APP PUB NO 20220415246A1
SERIAL NO

17778795

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is an LED display device, a driving method and a chip thereof. The LED display device comprises: a display array comprising row lines, column lines, and pixel units each comprising an LED connected to a corresponding one of the row lines and a corresponding one of the column lines; a row driver module, connected to the row lines and providing selection signals; a column driver module, connected to the column lines and providing driving signals corresponding to gray scale data according to pulse width modulation signals; a channel control module, connected to the column lines and adjusting a column-line voltage of a corresponding column line to a target voltage in a first time period when a corresponding pulse width modulation signal is active, thus improving constant current cut-in speed and improve consistency and linearity under low gray scale when an image with low gray scale is displayed.

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Patent Owner(s)

  • CHIPONE TECHNOLOGY (BEIJING) CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Zhizheng Beijing, CN 3 1

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