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Messages - Paul_B

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Graphic LCDs / Re: Backlight current limiting resistor
« on: April 28, 2015, 08:20:38 AM »

NHD-C12864A1Z-FS(RGB)-FBW-HT1 is a COG display, however the glass is attached to a pcb which contains current limiting resistors, please see page 3 in the displays datasheet.

Graphic LCDs / Re: NHD-C12864A1Z-FS(RGB)-FBW-HT1 heater
« on: April 28, 2015, 08:03:48 AM »

Thanks for reaching out. There are multiple ways to control the displays heater.

1. The simplest method is to apply +12V to pin 14 and Gnd to pin 1.

2. Second you can use an external circuit to control the heater (see page 5), using a heater circuit can be energy efficent and can be configured to accommodate a variety of energy requirements.

Hope this helps!

Graphic LCDs / Re: NHD-C12864A1Z-FS(RGB)-FBW-HT1 contrast setting
« on: April 28, 2015, 07:57:20 AM »
Hello Rob,

Thanks for reaching out. NHD-C12864A1Z-FS(RGB)-FBW-HT1 contrast can be controlled via software using the Electronic Volume Commands and V5 Voltage Regulator Internal Resistor Ratio Set. Please refer to page 37 - 38 in the displays controller datasheet.

Hope this helps!

Character LCDs / Re: NHD-0108bz-fsy-33v3
« on: April 23, 2015, 04:32:05 PM »

I recommend double checking your initialization, please use our example initialization sequence in the display's datasheet, page 8.

If possible can you please provide your code, thanks!

OLEDs / Re: NHD-0420DZW-AB5 Pixel Issues
« on: April 23, 2015, 02:23:34 PM »
No problem, please keep us posted  ;)

OLEDs / Re: NHD-0420DZW-AB5 Pixel Issues
« on: April 23, 2015, 08:38:47 AM »

Thank you for the additional information. Your display appears to be hooked up correctly which is good! The fading could have been caused due to exposure of moisture.

The steam radiator heating system or having the unit placed closely to leaky doors / windows could slowly cause fading of the pixels. I recommend trying to seal the enclosure a little better just as a precaution.

Hope this helps!

OLEDs / Re: NHD-0420DZW-AB5 Pixel Issues
« on: April 22, 2015, 07:46:46 AM »

This is not typical behavior, can you please tell me how you are driving the display?

Can you also list what kind of environment this display is in?


OLEDs / Re: NHD-0240CW-AR3 runs very hot with 5V supply
« on: April 15, 2015, 10:19:50 AM »
The specs have been updated. Please clear your browsing history and load again to view the updated datasheets.  8)


OLEDs / Re: NHD-0240CW-AR3 runs very hot with 5V supply
« on: April 15, 2015, 09:40:16 AM »
Hey Matthias,

NHD‐0216CW‐AB3 and NHD‐0216CW‐AR3 will be updated shortly  :)

Fantastic, enjoy your display!   8)

OLEDs / Re: NHD-0240CW-AR3 runs very hot with 5V supply
« on: April 06, 2015, 11:53:25 AM »
No problem, I am updating the datasheet as we speak.

Have a good one!

OLEDs / Re: NHD-0240CW-AR3 runs very hot with 5V supply
« on: April 06, 2015, 10:24:48 AM »

We have verified the correct configuration for 5V operation, please see the table attached. The updated spec will be available later today, I apologize for the inconvenience.



I'm sorry, unfortunately we can not give you an exact response time without physically testing the display under those conditions.

You are correct that the response time will drop in very cold temperatures, but by how much? You will need to conduct some testing  8)

Hello Sugumar,

Question 1:
"What is the back-light supply voltage tolerance for the LCD part: NHD-0420AZ-FL-GBW-33V3?"

Typ: 3.0V   |   Max: 3.3V (With a current limiting resistor)

Question 2:
"What is the minimum LCD supply voltage for the same LCD part?"

Answer: 3.0V

Graphic LCDs / Re: NHD-320240WX-COTFH-V#I041 w/ 6809 uP
« on: April 02, 2015, 04:53:55 PM »

Page four in the displays datasheet does not list power and GND tied together. The upside-down triangle represents ground and the right-side up triangle represents power.

NHD-320240WX-COTFH-V#I041 is a 3.3V module and the logic is 3.3V, you should not connect 5V to this display.

 e.g. When connecting NHD-320240WX-COTFH-V#I041 to an Arduino Board (which is 5V logic), this will require level shifting for the I/O pins.

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