Method for VCOM level adjustment with integrated...

Details Method for VCOM level adjustment with integrated... Method for VCOM level adjustment with integrated...

2007-08-01

2008-12-02

Nguyen, Linh V (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S118000, C341S120000, C341S121000

Reexamination Certificate

active

07460047

ABSTRACT:
A calibrator circuit and method for VCOM voltage adjustment for an LCD includes using integrated programmable resistive arrays. The method uses two DACs and three integrated circuit arrays to provide all of the advantages of VCOM calibrator circuits using external resistive voltage-dividers. The integrated circuit resistor arrays reduce the number of external components and PCB space. The method used is suitable for higher resolution adjustment of the VCOM voltage and no calculation is required in the whole adjustment procedure, which saves labor cost, time and enables automation of the calibrator fabrication.

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