Display circuit and control method therefor

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United States of America Patent

PATENT NO 9900476
SERIAL NO

15379127

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Abstract

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A display circuit and a control method therefor are shown. The display circuit includes: a lamp bead array, a column-oriented drive switch array, a row-oriented drive switch array and a common-anode discharge control circuit, wherein one end of the common-anode discharge control circuit is connected to second ends of lamp beads, in a row direction, in the lamp bead array, and the other end of the common-anode discharge control circuit is grounded; the common-anode discharge control circuit includes a constant current source, a diode and a resistor; a first end of the diode is connected to the second ends of the lamp beads, in the row direction, in the lamp bead array, a second end of the diode is connected to a first end of the constant current source, and the second end of the diode is connected to a first end of the resistor; and a second end of the resistor and a second end of the constant current source are connected to a power supply, and a grounded end of the constant current source is grounded.

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Patent Owner(s)

Patent OwnerAddress
LEYARD OPTOELECTRONIC CO LTD100091 NO 9 HONGQI WEST STREET THE SUMMER PALACE BEIJING HAIDIAN DISTRICT BEIJING CITY BEIJING CITY 100091

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wei, Hongliang Beijing, CN 2 0

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