It's my first contact with an oled panel from close view and personal usage. I noticed that the display acts like and LCD which is backlit even if there is a black image. Is the same supposed to happen to AMOLED? I thought the pixels would light themselves and if there is a black image, the screen should look the same like when its turned off - and it doesnt act like that, there is a dim light that's showing up when the screen is on and displaying a black image. Is it normal? Is the screen replaced with an LCD? ( i bought the phone used )
THanks!!
Easy test for an LCD, view through polarized glasses and rotate.
LCDs have a polarization filter so a second polarized lense with block the polarized light at some point in it's rotation axis.
Sadly i dont have a pair
I tried to take some samples of the pixels with another phone, here are the results:
MI MIX 3:
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------------------------------------------------------------------------------
Photos taken of a LCD tablet:
-------------------------------------------------------------------
Is it possible to say from these pictures that the display on the mi mix isnt RGB Stripe?
Like, maybe im considering it wrong, but i thought viewing from this angle an AMOLED panel with a black image should be the same like the second image when its off:
The contrast ratio of Amoled vs LCD is exponentially greater.
Searched through some logs and apps and found out its a samsung ea8076 - same display which is on the K20 Pro/mi 9t pro. Everywhere i searched i've found only amoled, i also looked up on the internet and there are available TFT replacements for the mix 3, i think it's amoled but it's very unusual - if i put a true amoled black image on the screen and increase the brightness, the screen gets brighter, even if there's nothing else than black pixels. Also, the maximum brightness is slightly lower than the one of my older phone ( RN3 Pro). I don't know what to believe at this moment.
Indeed it's changed, it's lcd, checked it under a microscope
to add on this, an easier test may be to check if a black background/image results in no light coming from screen (easier to see in the dark). LCD displays emit light (the backlight is still on) even for black images, oled do not
CriGiu said:
to add on this, an easier test may be to check if a black background/image results in no light coming from screen (easier to see in the dark). LCD displays emit light (the backlight is still on) even for black images, oled do not
Click to expand...
Click to collapse
The easiest foolproof way is view with polarized sunglasses and rotate.
LCDs show their stripes...
Related
Mango comes with default red. Anyone can verify??
Hmm, what a strange assumption?!.. If it was a black on black scheme, I can agree
Black on Black uses more power on "regular" LCD Displays. AFAIK, only AMOLED screens use less power when displaying a black screen compared to white.
red is a low intensity colour right?
used in military for night operations..
I assume the change to red as default color scheme comes from the new, square windows phone logo. They changed that from a green circle to a red square.
Localhorst86 said:
Black on Black uses more power on "regular" LCD Displays. AFAIK, only AMOLED screens use less power when displaying a black screen compared to white.
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Click to collapse
Another strange assumption Why do you think so?!.. Do you have an idea how LCD display works?
yes, I know how LCD Displays work. The ammount of power it takes more to show a black image i just so tiny, that it doesn't really matter.
Localhorst86 said:
yes, I know how LCD Displays work. The ammount of power it takes more to show a black image i just so tiny, that it doesn't really matter.
Click to expand...
Click to collapse
I don't understand what you are trying to say but black pixels does not required power at all So, "black-on-black" is a most "energy-saving theme" unless it's just useless
on regular LCD displays they actually do, as pixels are translucent by default. It requires energy to "shut them" in order to display black.
Localhorst86 said:
on regular LCD displays they actually do, as pixels are translucent by default. It requires energy to "shut them" in order to display black.
Click to expand...
Click to collapse
That’s right - the EL light in the back is one sheet and it is always on (when powered up). Think of the pixels as shutters letting the light through-
I cannot imagine that one color scheme vs. another could make a measurable difference.
Guys, LCD uses a few slightly different technologies... Are you talking about old STN (Super Twisted Nematic) implementation? Forget about it! Try to google about TFD/TFT...
HTC HD7 use a twisted nematic display
In Malaysia, maxis gave out wp7 with default green color as its their corporate color. Celcom gave out w default blue theme.. I guess it's d operator thing..
Sent from my LG Optimus 7
Magpir said:
HTC HD7 use a twisted nematic display
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Click to collapse
Proof link, please?
I found this picture:
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Hi,
Two weeks ago, I bought the Moto G. It is a great device. However I made a strange discovery.
When the brightness is high, there seem to be horizontal lines in blue and gray colors like the
facebook icon. You need to look very close to see them. When I looked at the display with a
magnifieng glass, every second line of pixels where in a lighter colour as the others.
All images are very sharp.but still the pixel-lines can be made out. If this is normal, then I will
live with this.
Thanks for any information
That doesn't sound normal. Could you take a close up picture of the affected area? Anyways I would definitely request a replacement.
Sent from my XT1034 using Tapatalk
I just found a thread including a picture which exactly describes the issue.https://www.google.com/url?q=http:/...ds-cse&usg=AFQjCNGaI4cLfsNaFK0vygdf_32mc49XyA
I tried to reproduce that image for you on my moto g with the Facebook icon and this is what it looks like
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
As you can see it doesn't very similar to the picture that user you linked posted, so I do think there's a defect in your screen.
Sent from my XT1034 using Tapatalk
Thanks for the fast reply. My picture however is only an example for the effect. When I zoom into your picture, I can also see the horizontal lines in the screen. Especially in the right sie oft the Google search bar and in the battery Symbol. The whole screen is made out of horizontal pixel lines. So I presume that all moto g will be like that. But I am suprised that I can See the lines with my bare eye in a HD screen.
Hi,
today I received my cristal clear screen protector. As soon as it was on the screen, the issue with the horizontal lines nearly vanished.
I don`t know why that happend but a screen protector solved it for me.
I've noticed the exact same issue on my MOTO G.
And i'm very surpised to see horizontal lines on an HD screen. I have also a Sony Xperia Neo V with much lower pixel density (265 i think) and it's very crisp and smooth with no lines at all..
My wife has also the same issue on her MOTO G.
It's present only horizontally and when you look the screen in a slight angle upwards..No downwards. When i change screen orientation to landscape the 'lines' are always there.. but now vertical.
They are present in the 1280 side and not in the 720. i think that every second pixel line is white.. Like i have 640 pixels only. That's happening in solid colors background and especially in grey, blue and green colors (like in the green message icon, or most noticabely in the grey keyboard buttons and in the battery icon on the status bar).
That's very strange and i don't know if i'm going my phone to the service because maybe they think that i'm too weird looking for such small things with a very nice handset by any other means..
Thank you very much and sorry for my bad english
Hello everyone,
Today i noticed that when bright light falls(like the one in the shopping mall) on my gear s3, it shows a small brown patch on the display at an angle.
I don't know if this is the design or i have got an orange.
Please guys can anyone who owns this watch confirm this? Flashing a bright light like phone camera light in a little dark(lightly lit) room and titling the watch at angles will start to show a brown color small box like rectangular patch on the screen of the watch.
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
pavanaiyappa said:
Hello everyone,
Today i noticed that when bright light falls(like the one in the shopping mall) on my gear s3, it shows a small brown patch on the display at an angle.
I don't know if this is the design or i have got an orange.
Please guys can anyone who owns this watch confirm this? Flashing a bright light like phone camera light in a little dark(lightly lit) room and titling the watch at angles will start to show a brown color small box like rectangular patch on the screen of the watch.
Click to expand...
Click to collapse
I found the answer-- before answering i have tell few things :
I had given my watch before to Samsung service centre for the rattling bezel issue, they fixed the problem by changing the full watch expect the bottom panel containing the serial number which was retained, during this process i suspect they have missed some seal or packing where the bottom heart rate sensor is located.
Now when a bright light falls on the display the light passes through ( i observe there is a small transparent opening in the bottom panel causing the issue maybe) making the display show a perfect rectangular brown patch as the light is partially passing through thin display(this is similar like in MacBook pro laptop wherein if you pass a bright light from outside where apple logo is located a white apple shaped patch is produced).
Taking the watch to service centre and will see what they will say.
Also to inform you service centre people are unprofessional and have put few scratches on the back panel of the watch the first time i had given.
So many problems I am facing with this watch one after other next time i am thinking of going with apple and will change my complete ecosystem.
I have got the small brown rectangular patch on my screen as well. I did shine the bright light and it was distinct.
It's an ambient light sensor for adjusting the screen's brightness automatically. Just be glad that it's mostly hidden underneath the screen rather than in some hideous notch or flat tire near the edge.
I got the phone 2 days ago and today I noticed a rather peculiar issue I don't seem to have noticed yesterday. I was browsing Instagram and there was this image that consisted of a lot of shadows and dark areas, as I scrolled lower the next image was much lighter and bright with almost no shadows and as I was seeing the image, the phone suddenly brightened up the shadows and the colours changed a little. I was surprised and I tested this in other apps such as reddit and the issue persists. If there is a lot of dark content on the screen, the shadows will be pitch black but as soon as the content gets bright, the shadows will get muddy and will behave like a LCD display. I even tried screen recording this but in the clip it shows everything is normal. This is annoying the hell out of me. Please help me.
What are your display settings? I'm pretty sure by default it automatically switches the resolution between 1440 and 1080.
Might be the oneplus video enhancer at work. Try toggling it off
I also noticed, it is due to the 90 hz, try to replicate your steps to 60hz, in my case it does not happen. I noticed it in the camera when making a dark photo at the time of opening it, it looked perfect to the delay of 2/3 seconds, it was horrible to see, the whole image turned blue and the black step to lcd (bluish gray very Dark). When using the camera or videos is reduced to 60hz in gallery up to 90hz
HideXs said:
I also noticed, it is due to the 90 hz, try to replicate your steps to 60hz, in my case it does not happen. I noticed it in the camera when making a dark photo at the time of opening it, it looked perfect to the delay of 2/3 seconds, it was horrible to see, the whole image turned blue and the black step to lcd (bluish gray very Dark). When using the camera or videos is reduced to 60hz in gallery up to 90hz
Click to expand...
Click to collapse
The display tapers down to 60hz in camera app, on call and while watching videos.
Change your settings.
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"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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Does it happen in bright areas? I've noticed when high brightness mode kicks in, blacks turn to muddy greys and when I go into a dark room, it normalizes.
Same issue with me. Funny, I couldn't find anything about this on the internet anywhere till today and came here to make a post about it. It's really annoying when I'm outside because the brightness automatically turns blacks to grey. Changing the brightness manually instantly fixes it though.
I think it might be a feature called adaptive screen or something? I don't have the device but I remember OnePlus mentioned something about optimizing the image displayed on the screen. Try to look if there's a setting about adaptive screen or brightnes
Is "Video enhancer" in Settings > Display enabled?
That will cause your display to shift between regular mode and "HDR" mode if video content is detected
Hi All
I have a vertical line on the middle of the screen in poco F2 pro MIUI 12, 8/256, this line appears in grey color when no or low light in the room when I run tester there is nothing in other colors put when on grey and dark grey it's appears if any one can tell me that is defect screen or what and if there is any solution. I'll attach a photo from another phone to explain.
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"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
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"lightbox_share": "Share",
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"lightbox_toggle_sidebar": "Toggle sidebar"
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Regards
Can't see the picture but I might know what you talking about.
My F2 has also vertical "spots" in low light/dark conditions when there also dark content displayed on the screen.
I think it is normal for OLED Screens, although I must say it is quite visible on the Poco f2.
GalaxyFan88 said:
Can't see the picture but I might know what you talking about.
My F2 has also vertical "spots" in low light/dark conditions when there also dark content displayed on the screen.
I think it is normal for OLED Screens, although I must say it is quite visible on the Poco f2.
Click to expand...
Click to collapse
Thanks for your reply
Yes it appears in dark condition specialy on grey, dark grey color and a lot of apps using it in dark mode so it's normal no need to change the phone
dedo_ryo said:
Thanks for your reply
Yes it appears in dark condition specialy on grey, dark grey color and a lot of apps using it in dark mode so it's normal no need to change the phone
Click to expand...
Click to collapse
Yes exactly. I must admit it is quite irritating seeing those at first; these "shadow lines" are especially more prominent when the DC dimming feature is activated.
I had those on every phone with OLED Screens (Galaxy S, S2, S3 etc. you name it) and also on the OnePlus 6.
I assume OLED Screens are not perfectly balanced out regarding their illumination strength or there are slight impurities/imperfections in the panel, since these are organic light emitting diodes. But I don't really know why these lines appear especially in low light conditions.
Other than that it does not bug me much (anymore) since in most use cases the lines/shadows are not visible.