Driving method for LED-based display device

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United States of America Patent

PATENT NO 11856669
SERIAL NO

18059433

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Abstract

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A driving method, for a controller in a display apparatus, is disclosed. The display apparatus includes LED strings, scan transistors, current regulators and a power converter. The driving method includes following steps. LED cathode voltages are detected on nodes between the LED strings and the current regulators. When a first LED cathode voltage is equal to a minimal operable voltage of the current regulators and a second LED cathode voltage exceeds the minimal operable voltage of the current regulators, a driving current flowing through the second data channel is adjusted by increasing a pulse current level of the driving current and reducing a duty cycle ratio of the driving current flowing through the second data channel.

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Patent Owner(s)

Patent OwnerAddress
NOVATEK MICROELECTRONICS CORP2F NO 13 INNOVATION ROAD I SCIENCE-BASED INDUSTRIAL PARK HSINCHU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Jhih-Siou New Taipei, TW 91 92
Chou, Chih-Hsien Hsinchu, TW 54 601
Yang, Ren-Chieh Taichung, TW 4 0

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