Post Reply 
Flickering screen (no user interaction)
12-20-2019, 08:42 PM (This post was last modified: 12-20-2019 08:47 PM by wmattias.)
Post: #26
RE: Flickering screen (no user interaction)
(12-20-2019 05:09 PM)Tim Wessman Wrote:  May push out a version to test...

That would be excellent! Would love to try it.

(12-20-2019 05:09 PM)Tim Wessman Wrote:  There is no way that flicker can do what you think it might... No need for any sort of message.

Well, I'm no doctor but I'm not so sure - When I told a friend about the flickering, he warned me and referred me to the UK Epilepsy Society:

"Possible triggers if you have photosensitive epilepsy
- Flashing or flickering lights or images between 3 and 60 hertz (flashes per second).
- A contrasting dark and light geometric pattern, such as black and white stripes or checks."


Which was pretty close in nature to the test program.

I had to google screen size though, but information was scarce. Maybe not a fair comparison for this case, but it's recommended that you should sit at least >8 feet (96 inches) from TVs if you are susceptible. Assuming the TV is 24" (which was a common size in 1994 when the study was done), that would mean that (96/24) => 4x the diagonal away from the screen. The HP Prime screen is 9 cm => 4*9 cm => 36 cm minimum distance. Depending on your eyesight, you could well end up within this distance.

"In their major monograph, Harding and Jeavons (3) made six recommendations for precautions to be taken by people who are sensitive to flickering lights. These were as follows:
1 View TV from ≥8 feet;


Anyway, better safe than sorry...
Find all posts by this user
Quote this message in a reply
Post Reply 

Messages In This Thread
RE: Flickering screen (no user interaction) - wmattias - 12-20-2019 08:42 PM

User(s) browsing this thread: 1 Guest(s)