Author Topic: NHD-7.0-800480EF-ASXV#-CTP - "Touch" stopped working on part of LCD  (Read 2164 times)


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We are testing this LCD for our new product and we run into the issue that upper and lower zone (size about 0.5") of the screen stopped responding to any touch. When we replace the LCD for another one it works normally so it has to be hardware problem. We transported this LCD couple times and also many people touch it and have it in hand, so it's likely that it was somehow damaged. My question is - can we find out what exactly happened and how to prevent it next time? Like take it apart and look at some specific place or something similar..... As I wrote we are going to use this LCD for our new product and now we are little bit scared if something similar happen in the future after deployment.



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Re: NHD-7.0-800480EF-ASXV#-CTP - "Touch" stopped working on part of LCD
« Reply #1 on: February 19, 2019, 11:20:53 AM »

I am sorry to hear you are experiencing issues with the display. We do test our capacitive touch panels 100% for functionality before they leave our facility, were the displays purchased from Newhaven or a distributor? 

Could you tell me how long the touch panel was working before the upper and lower zones stopped responding? Was the display dropped at all? Was the touch panelís flex cable subjected to any type of excessive stress/strain when being transported or during testing? Are there any sharp bends or twist on the cable?

Are there more displays you have with this issue? Itís difficult to say where the fault is without having the physical unit here to analyze. I would not recommend taking the unit apart as this will void the warranty. We will certainly help and get to the bottom of the issue.
Could please respond to this post in an email to ( we can further assist you.

Best Regards,


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