CONTROL CIRCUIT AND CONTROL METHOD OF AMOLED PARTITION DRIVE
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
Jun 25, 2015
filing date -
Jun 10, 2015
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Abstract
The present invention provides a control circuit and a control method of AMOLED partition drive. The AMOLED display panel (100) is divided into a plurality of display partitions, and a plurality of first leads (PIN1) and second leads (PIN2) of which amounts are equal to an amount of the plurality of display partitions, and the pixel driving circuit (101) in each display partition is coupled to the power source positive electrode line (OVDD) via one first lead (PIN1), and coupled to the power source negative electrode line (OVSS) via one second lead (PIN2), and a plurality of external switches, positioned outside the AMOLED display panel (100), of which an amount is equal to the amount of the display partitions, and each external switch is correspondingly coupled to one first lead (PIN1) and the power source positive electrode line (OVDD), or each external switch is correspondingly coupled to one second lead (PIN2) and the power source negative electrode line (OVSS), and the external sequence controller (TCON) provides the control signal to each external switch. It can ensure the display effect when the AMOLED shows black or a darker image to eliminate the stress between the cathode and the anode of the organic light emitting diode.
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