LCD segment was not turn off fully (using PCF85134)

Vamsi091 — Tue, 05 Oct 2021 04:34:49 GMT

When I turn off the LCD Segments I can Still see a little light in the Segment

I was using PCF85134 LCD Segment driver

Any sample code will be great help.

Best Reagrds,

Vamsi

Re: LCD segment was not turn off fully (using PCF85134)

JozefKozon — Thu, 07 Oct 2021 10:01:05 GMT

Dear Vasmi,

I apologize for a late reply.

I would need some values from you. Please provide the following values.
Vth(on) or Vsat=
Vth(off)=
VLCD=

JozefKozon_0-1633600813613.png

Also please state what LCD drive mode you are using as described in the Table 5. in the PCF85134 datasheet.

JozefKozon_1-1633600843191.png

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With Best Regards,

Jozef