What might the reason for TFT Flickering (Not Backlight)

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Electronic_Maniac

Joined Oct 26, 2017
253
I have a 10.25inch TFT display. The data signals are LVDS and the command signals are SPI.
However, the TFT Backlight driver IC works at PWM Freq = 200Hz.
What might be the reasons for the TFT Image flickering?
While I try to capture the flickering by recording a video in my phone, I am not able to observe the TFT flickering on the video recording.
Could you please tell me why there is a TFT flcikering and why am I not able to view the flickering in my video? The video is smooth and no flickering is observed
 

MisterBill2

Joined Jan 23, 2018
7,325
Probably what you are seeing is updates of the display by the driving software. But taking a video with the phone it is taking very short image snapshots and so it is missing the updates, which are far less frequent. So someplace there may be a setting for update rate and that may be able to reduce the flicker, if it is a problem. It is probably a software issue with no hardware solution.
 
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