In my project I'm using textboxes, and buttons with a border.
Leave TFT on your Nextion
Test with a phone charger and test plug that came with the Nextion
Power on, and see if the result remains the same.
(If need be, put the command in the TFT to launch this page)
See if you can reproduce it where it is more pronounced It seems very dim at best - I am sure camera maybe not catch
it as much as you are seeing
try to get PNG picture at high quality
High quality does not mean BIG photo
But less compression
Possible the transistor within matrix has been damaged
Possible causes of such effect is
- high pressure
- temperature shock
- wet from condensation
Is it occurring at same spot every time?
When screen is designed differently, what is the effect
I have made some pics of several screens with another camera. On every screen it's always on the same place every time that the page is loaded..
The stripe's from the one screen are not showing on another screen.
I will attach 5 .jpg pictures (.png uses 3x more mb's here) in better quality.
Indeed it's a little difficult to catch it on camera. It's not 100% but i think it's clear enough to see..
SCR_1: Lines showing in left of screen between buttons clear / pid user
SCR_3: No lines are appearing
ok, now I can see the issue. Short answer, the integrated column driver circuit has some slight variations in driving the different columns. Different colors are based on different voltage for the underlaying transistor matrix.
Due to whatever reason, some of this matrix lines are driven too weak, according to the color they shell represent.
The bad news are, there is nothing you can really do about to fix it. The effect itself will be more obviouse the more big areas of same colors you use.
It is also possible, that this effect will increase with the time. More such wrong driven columns will appear ...
Sorry to say that. How old is this display and where did you buy it, maybe a warranty regulation may play?
isn't there an official reseller in your country? Then even no shipping cost ... ?
with platforms like eBay, TaoBao, AliPay, ... you can have a lot of luck (and normally you have), but it is still not the same than buy from an official distributor or reseller ...
There are many reliable dealers out there, but also a great number of others ... and even you had a great luck for the past, this is no guarrantee for the next ...