What is V_HV? (High voltage).

electricity86 said:

In my LCD's datasheet there is mention VHV:
"The voltage between VHV and VSS is the supply voltage for high voltage
part of the EM6124.".
What is that?
Can it be the VDD?
I'm using this LCD:
https://www.emmicroelectronic.com/webfiles/Product/LCDdriver/EM6124_DS.pdf

Thanks.

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