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1
Hi Tim!

Our Product Knowledge Center is a good resource for finding more information on the differences in terminology between premium, MVA, and sunlight readable:
https://www.newhavendisplay.com/pkc_lcd_tft.html#link7

This does seem to be a typo in our HDMI User Guide document. The correct viewing angles for the standard and sunlight readable TFTs are 12:00. Thank you for bringing this to our attention, and we will rectify this error asap.

Best!
2
Character LCDs / Re: NHD-0216K3Z-FL-GBW-V3 : Backlight
« Last post by Alee_S on July 16, 2019, 02:14:48 PM »
Hi Eashwar,

Plese note there is a difference between The VLCD and backlight voltage, as the VLCD is the voltage value needed for the LCD glass itself for optimal contrast, while the backlight power is driven by VDD, since the display power and backlight are generated from a single source for this display. VLCD is software configurable in this case.

A and K are pins responsible for the LED power, which can be powered from the VDD pin and is software configurable from the transistor and accompanying circuitry on the PCB.

3
Hello :)

I would like to see the difference between Premium MVA and Sunlight Readable in sunlight and viewing angles.

I have found a helpful comparison video from your company: https://www.youtube.com/watch?v=QDgkOT4nzrY

But this is not bewteen MVA and Sunlight.

The onlything I could find is in this video from your company: https://youtu.be/y0-I33Kl4gg?t=79  is this comparable to the NHD-Series?

In the NHD 7.0" HDMI TFT User Guid Rev1.1 there's something with 12:00 and 6:00, is this a typo?

In the data sheet under Optical Characteristics, Optimal Viewing Angle, which are 60 (NHD-7.0-800480EF-ASXN#-T)


Thank you very much, if there's anything uncleare please do not hesitate to ask.
Your's sincerely
Tim
4
Customer Projects / ESD to Arduino?
« Last post by timmyjane on July 15, 2019, 09:29:08 PM »
Can I export my project from ESD into and ino file?  Some other method for getting the info onto and Arduino?

Thanks.
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Character LCDs / Re: NHD-0216K3Z-FL-GBW-V3 : Backlight
« Last post by Eashwar on July 13, 2019, 09:54:45 AM »
Dear Alee,

Thank you for your reply. Sorry for delay response did not mail notification, had to check through website.
Regarding point no. 2 and with reference to image you have attached in your previous reply,

VLCD (backlight) - 4.0V (min.) 4.3V (typ.) 4.6V(Max.)
VDD  - - 4.5V (min.) 5V (typ.) 5.5V(Max.)

It is confusing, since VLCD and VDD voltage does not match. I have designed two separate supply for VDD - 5V and VLCD - 4.3V.
Kindly confirm your reply once again, as you have told use same supply for both VLCD and VDD.

What is purpose of 'A' and 'K' (image attached) pin provided behind the display PCB.
6
OLEDs / Re: How to reset NHD-0216SZW-BY5?
« Last post by Jordan82 on July 12, 2019, 12:00:45 AM »
The OLED has slightly different timing than the LCD (this can be seen in the datasheets for the displays, specifically the command tables).  One main difference is the clear display command.  With the OLED, you need a minimum of 2ms delay after executing this command.  The other commands have slightly higher execution times as well, so these would also need to be accounted for if the requirements are not being met.

Also, can you make sure pin 3 is left as a no connect?  The same goes for pins 15&16.  You should not need to change any jumpers, as the OLED comes default as 6800 mode like the LCD.
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OK, after everyone says my power supplying the Arduino was the problem, I took a 12V 20A supply and wired a bullet connector on it.

Powering JUST the Arduino, with the shield (https://www.newhavendisplay.com/nhdft81xshield-p-9581.html) connected to Either of my 4.3" screens (https://www.newhavendisplay.com/nhd43480272ftcsxnt-p-9568.html) with the FFC from NHD (https://www.newhavendisplay.com/20-pos-ffc-p-1101.html) I get one flash of backlight as soon as the power is connected, then no response. If left connected, both will begin to heat the FT812 Chip to untouchable temperatures. 

When I try my 7" displays (https://www.newhavendisplay.com/nhd70800480ftcsxnt-p-9576.html) and (https://www.newhavendisplay.com/nhd70800480ftcsxnctp-p-9575.html) of course changing the compiled code on the arduino to match the 7" and Capacitive or Resistive touch. The screens actually light up and show the initial calibration "touch a point", but both refuse to respond to touch input and will not progress past the "touch a point" stage. 

I believe the issue was/is that my 9V 3A wallwart must have some voltage drop due to not large enough conductors in the cable, thus causing some voltage drop or amperage limitation.  Now that I've gone nuclear on it (12V 20A) the 2 larger screens seem to try, but still do not respond to touch.
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TFTs / Re: 763-NHD7080FTCSXNCTP TouchScreen Stopped responding (arduino w/shield)
« Last post by Ted_M on July 11, 2019, 10:48:00 AM »
Hi,

Sorry to hear you are having some trouble getting the EVE2 TFT display working properly.

When using the NHD-FT81x-SHIELD, it is only necessary to power the Arduino itself with the 9v to 12v and 3Amp DC wall supply. 

Do not power the EVE2 TFT pins with a separate 3.3v supply in this case. 

Using a 12v supply for the Arduino may be necessary if the 20 pin interface cable is longer than 8" to 10" or if you have other devices connected on the 20 pin interface cable or SPI bus. 

It is ok to keep the USB programming cable connected to the Arduino at the same time as the DC supply for convenience in programming and testing simultaneously.

The Arduino Shield will supply 5v to drive the backlight voltage booster circuit on the EVE2 PCB so that chip will be cooler as it will produce up to 26v to drive the LED's for the backlight depending on the TFT display connected.

Best Regards,

   
9
The power supply (wallwart) i'm using is a 3A 9VDC capable supply.

I've used this same arduino in other projects before this, and have since confirmed that the arduino does not have issues when NOT used with the shield/running the screens.

I'm very unhappy with the quality of these screens.
Thinking I did something wrong I ordered another 4.3, and a 7" resistive touch.

The 4.3 crapped out in the exact same way as the previous 4.3 (massive heat from the chip on the tft module).
The 7" resistive has stopped responding to any touch... just as the Capacitive did.


10
TFTs / Re: FT5436 gesture not working
« Last post by arjunsalariya on July 10, 2019, 04:46:46 AM »
Hi Team,

Is there any update? any one have face this type of issue?

Thanks,
Arjun
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