atom63 0 Posted August 18, 2019 Share Posted August 18, 2019 What about pwm here? Does it has dc dimming? or smth else? Thanx Quote Link to post Share on other sites
netman 1,424 Posted August 18, 2019 Share Posted August 18, 2019 For the screen brightness? I have never observed AMOLED doing PWM, at least not on a frequency that is visible by the waving yer hand trick or bothering cameras, but I wouldn't know how do they work. Interesting question. Quote Link to post Share on other sites
atom63 0 Posted August 19, 2019 Author Share Posted August 19, 2019 For the screen brightness?. Yeah Look at this And after that look here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038456/ or here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038456/ Quote Link to post Share on other sites
EskeRahn 5,427 Posted August 19, 2019 Share Posted August 19, 2019 netman wrote: For the screen brightness?. Yeah Look at this And after that look here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038456/ or here https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038456/ I tried to do a simple pencil-test (flipping a pencil quickly) at different levels of brightness, and it could look like they are using PWM. The display is a Boe BF060Y8M-AJ0-7702 if you want to dig deeper. It is also used on the Elephone U Pro. Quote Link to post Share on other sites
aznfantasystar 5 Posted August 19, 2019 Share Posted August 19, 2019 An educated guess, based on technical reviews from Notebookcheck.net, is an average of 245 Hz. Most OLED displays have this refresh rate so I'm not worried. The exception to this are those with prescription glasses (or sun glasses) with polarizing filters. The outlier of-course was the OnePlus 7 Pro at around 120Hz. Quote Link to post Share on other sites
atom63 0 Posted August 20, 2019 Author Share Posted August 20, 2019 An educated guess, based on technical reviews from Notebookcheck.net, is an average of 245 Hz. Most OLED displays have this refresh rate so I’m not worried. The exception to this are those with prescription glasses (or sun glasses) with polarizing filters. The outlier of-course was the OnePlus 7 Pro at around 120Hz. The frequency of 245.1 Hz is relatively low, so sensitive users will likely notice flickering and experience eyestrain at the stated brightness setting and below. Maybe should worry about i? Quote Link to post Share on other sites
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