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Messages - ahumblet

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1
TFTs / Re: Display artifacts?
« on: August 14, 2015, 07:23:48 AM »
Thank you Michael, that was the problem.

2
TFTs / Display artifacts?
« on: August 07, 2015, 08:18:29 AM »
Hi all,

We are evaluating a NHD-7.0-800480EF-ATXL#-CTP and get some display artifacts as shown on the attached screenshot.

If we display a filled color screen, we get what we expect. But when we draw something more complex, some pixels are not of the expected color and some are flickering. This is shown on the attached screenshot where some black lines appear green.

I suspect this comes from some violation of the timings on the pixel bus but I would like to know if you have other ideas and some ways to correct this behaviour?

Thank you,

Alexis

3
TFTs / Re: NHD-7.0-800480EF-ATXL#-CTP touch controller
« on: August 05, 2015, 10:20:36 AM »
Thank you for your answer. We finally could get some answers from the TP, the problem was on our interface board and we were distracted by this strange looking FT5406.

4
TFTs / NHD-7.0-800480EF-ATXL#-CTP touch controller
« on: August 05, 2015, 08:39:49 AM »
Hello,

We bought an NHD-7.0-800480EF-ATXL#-CTP for evaluation. We usually use another TFT with an FT5406 touch panel controller. However, we were not able to get any answer from the IC controller on the NHD panel.

After inspection, we have seen that the IC on the NHD display has 56 pins and no marking while the FT5406 on our usual display has 68 pins and a clear FT5406 marking. The FT5x06 datasheets indicates that the FT5406 has a 68 pins package.

Do you use some FT5406 in a non standard package or is it a different TP controller?

Thank you,

Alexis



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