Screen ghosting after welcome screen #5866
Replies: 1 comment
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Posted at 2023-03-21 by @thyttan I get it too, very noticeable after loading BW Clock right after exiting the welcome app. But pretty quickly, 10 to 30 seconds, the ghosting is much milder or even gone. I tried this with the torch app as well and got similar ghosting when switching back to BW Clock, except for where the red software back button had been on the torch app. Device Type BANGLEJS2 Posted at 2023-03-22 by @gfwilliams Thanks - do you notice it anywhere else? I'm wondering what we do in https://github.com/espruino/BangleApps/blob/master/apps/welcome/app-bangle2.js that makes it so apparent in the welcome app. I'll do some testing with:
As I think that may be causing the problem... Posted at 2023-03-22 by @gfwilliams Just fixed it! So hopefully no more ghosting issues when the LCD power is forced on at boot time. It's just a pain it happened with the app that starts when everyone first gets their watch! I know one person recently returned their watch because they didn't like the ghosting in the welcome screen (and I guess they never bothered to explore other apps). Posted at 2023-03-22 by @thyttan
I know I've noticed ghosting in different places at times, but I don't recall specifics now.
Nicely done! Seems to have fixed the ghosting after using the torch app as well, as far as I can tell. Posted at 2023-03-23 by gfric I have the ghosting when switching from teatimer to glbasic clock sometimes. Teatimer only quits by long pressing the button. I think it's a teatimer issue. ;) Posted at 2023-03-24 by @gfwilliams
Ahh - I imagine that was very similar then (forcing @gfric you mean with an older firmware? I bet this once fixes it Posted at 2023-04-01 by 23Ro Found this thread when searching for the ghosting issue. I use the Dev Clock, and when I open the menu, it is hard to read some of the Text next to the icons. I'm working on some of my apps right now, and when navigating from menu to menu, I notice the same issue. Is there anything I can do to make this less noticable? Currently I don't enforce any additional refresh/handling of LCD states. Edit: Might be worth mentioning: it is much more noticable in dark mode Posted at 2023-04-01 by @thyttan Maybe it would be helpful if you shared a backup of your watch along with steps to reproduce the situation where you get ghosting in menus? Like I said before, I've noticed ghostig sometimes at different situations. But I don't see it frequently and don't remember specifics. Posted at 2023-04-03 by @gfwilliams ... and please can you try upgrading your Bangle.js firmware to the latest 'cutting edge' firmware? That may will help you out significantly. Posted at 2023-04-19 by @thyttan I just had to install the firmware with the DFU android app to my Bangle 2. When it finished and the watch loaded BW Clock lite there was noticeable ghosting. Just a FYI. Posted at 2023-04-20 by @gfwilliams Thanks - from the DFU app? Yes, that one would be expected since we don't go to a lot of effort in DFU to keep refreshing Posted at 2023-05-03 by ga I have ghosting of the welcome screen too. Attachments: Posted at 2023-05-04 by ga heres a photo, exaggerated Attachments: Posted at 2023-05-04 by @gfwilliams Hi - I don't think your clearRect issue is related - maybe make a new post for that if you can narrow it down to a simple code example that reproduces it? But personally I'd think that one is likely a bug in your code somewhere. In terms of ghosting on your screen, I believe they all do that. Can you see anything with the backlight off? I don't believe it is mechanical stress or anything to worry about - the backlight consists of two LEDs shining sideways onto the screen - when the backlight is on you see this slightly odd pattern because of how the light shines out. It's a side effect of it being a transflective screen - I believe they have to front-light it, which means they can't have that layer that spreads the light out that you would have on a normal LCD. |
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Posted at 2023-03-21 by @gfwilliams
Is it me, or if you leave the Bangle right at the end of the welcome screen (so just start it and leave it) for a few minutes, there's really bad ghosting afterwards?
I just noticed it on a watch here - I'd never really seen it that bad before, but maybe it's something about the welcome app (not sure what!).
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