does the front light flicker?

explorer1 · 03-31-2015, 12:31 PM

Is PWM (Pulse Width Modulation) used for dimming the led's in Kindle Paperwhite and Kindle Voyage ? If so, then the front light flickers. How does this flickering impact reading for long periods? Eyes get tired quicker because of frontlight flicker ?

twowheels · 03-31-2015, 01:17 PM

I seem to remember some teardown review that said that it was NOT PWM, but I don't have a source, and I could be remembering it exactly backwards. :-)

That said, I don't notice the flicker, but if it were subtle it could still cause discomfort even if undetectable.

03-31-2015, 12:31 PM	#1
explorer1 Junior Member Posts: 4 Karma: 10 Join Date: Mar 2015 Device: android tablet, 7", 216 ppi, ips	does the front light flicker? Is PWM (Pulse Width Modulation) used for dimming the led's in Kindle Paperwhite and Kindle Voyage ? If so, then the front light flickers. How does this flickering impact reading for long periods? Eyes get tired quicker because of frontlight flicker ?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Front light on PB Touch Lux	walan	PocketBook	1	11-23-2013 08:52 AM
What is your main use for your front light	speakingtohe	General Discussions	43	09-15-2013 11:45 AM
Kindle PW front light...	freezer2k	Amazon Kindle	52	09-09-2013 09:37 AM
Glo Light flicker?	CatherineStewart	Kobo Reader	10	02-19-2013 11:47 AM
Front Light Idea	drgnbear	Sony Reader	10	02-13-2007 06:27 PM

03-31-2015, 01:17 PM	#2
twowheels Wizard Posts: 1,803 Karma: 13412766 Join Date: Nov 2010 Device: Kobo Clara HD, iPad Pro 10", iPhone 15 Pro	I seem to remember some teardown review that said that it was NOT PWM, but I don't have a source, and I could be remembering it exactly backwards. :-) That said, I don't notice the flicker, but if it were subtle it could still cause discomfort even if undetectable.

Advert