Thread: Forma Forma 8 vs 32 GB (difference besides storage)?
View Single Post
Old 04-29-2019, 07:52 AM   #4
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by PorcupineLTD View Post
As for the PWM even if it is not consciously perceived it still registers at the level of the retina and the brain causing fatigue and eye strain in a not insignificant percentage of people. This seems to me the biggest flaw in the Forma as the whole point of ereaders is to do away with the eyestrain problems caused by lcd and oled and Kobo just introduced a problem that to my knowledge never existed on frontlit ereaders (witch is most likely a cost cutting measure since digital brightness control is cheaper than analog).
Except that you don't take the frequency used into account. Kobo is using 1KHz. If you can find any suggestion anywhere (beyond forum discussions) that PWM around this frequency can be a problem, please point them out. The highest frequency that I have seen any suggestions of issues is 400Hz. And even that seemed to be picking a number double where effects had been noticed.
davidfor is offline   Reply With Quote