Sensor behind the display? Looks almost like a dead pixel - Samsung Gear S2

Hello, I just bought a gear s2 classic and noticed something strange on the screen. When the screen is off and you look under a bright light, there looks to be a sensor in the center of the screen, which almost looks like a dead pixel. I included a pic but not sure if you can see it. Is this normal or should I exchange it? Thanks!
imgur.com/uCaix72
note: sorry I can't link it directly since I'm a new member. Please copy & paste the link for the pic.

Don't worry, this is normal - no need to exchange it :good:

Yeah. That's a sensor.
Ambient light sensor. Adjusts display brightness to compensate for bright conditions.
Be thankful!

Related

[Q] Problem with Camera? Blue ring.

When I start the camera I get this blue ring in the center of the picture, if I take a picture it will show in the picture as well. Anyone else having this issue?
Is it a sharp blue ring, generated by software, or some kind of artifact like a light leak? Do both cameras have it? Are you using the default camera application? Can you post one of the pictures?
brachiopod said:
Is it a sharp blue ring, generated by software, or some kind of artifact like a light leak? Do both cameras have it? Are you using the default camera application? Can you post one of the pictures?
Click to expand...
Click to collapse
I guess I am the only one with this problem. I updated the firmware yesterday but it's still there, as you can see just the blue or purple ring in the center.
Is that on the shots with the other camera too?
Is it on all the shots?
If not, is there some unusual lighting for that shot?
I ask the last because as a photo guy, that looks like the type of thing that you see with internal reflections with the IR filter over the CCD under some lighting conditions, e.g. an incandescent light just out of the frame at the right angle for that shot. Again, is it on all the shots? Again, is it on the shots with the other camera too? If it is on all the shots you might have a problem, it does look like an artifact.
What you're looking at is refraction caused by light hitting from an angle (like lens flare) and bouncing around on the inside and hitting back at the inside of the glass and the glass is now acting as a backdrop. Just a wild guess. Best thing to try is to block the lens to kill the light completely. Do you still see the blue ring? If so, then it's most likely the CCD sensor.
brachiopod said:
Is that on the shots with the other camera too?
Is it on all the shots?
If not, is there some unusual lighting for that shot?
I ask the last because as a photo guy, that looks like the type of thing that you see with internal reflections with the IR filter over the CCD under some lighting conditions, e.g. an incandescent light just out of the frame at the right angle for that shot. Again, is it on all the shots? Again, is it on the shots with the other camera too? If it is on all the shots you might have a problem, it does look like an artifact.
Click to expand...
Click to collapse
It's on all shots and only with the back facing camera. it moves when the camera is focusing.
Riddleric said:
It's on all shots and only with the back facing camera. it moves when the camera is focusing.
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Click to collapse
If it is on all the shots, you have a problem unfortunately. I just tested with mine, and you can get a very fierce IR internal reflection with a light source just out of the frame, but it isn't on all the shots of course. (see below)
Bit of a long shot, but if it moves with focusing, it might be some kind of internal light leak from the backlight. Maybe they forgot to install a little baffle or something. Turn the backlight brightness all the way down and see if that reduces it.

bought xperia z5, defected lens? xperia z5 users please help!

Greetings guys, ive just bought the Xperia Z5 but for some reason there semms to be a problem with the lens, i am here to ask you if you can confirm this issue with your phone, i took a snapshot of my monitor and ive found out that the middle of the picture is of crispy clear quality, but as soon as i move a little to the left on the bottom part of the screen i find a blurr and if i move even further to the left the blurr is gone.
Is this normal? is there any hidden plastic stickers glued on the camera lens that i should remove?
Please take a minute to look at my pictures to help me understand if im missing something or it is really a defect unit, my version is REV2, android updated to latest firmware and camera settings cleared.
Both 20mp and 8mp pictures have this problem visible, due file size limitation ill only post the 8mp one with red arrows and text showing exactly where the blurr is:
8mp
http://postimg.org/image/xap2uuy6l/full/
EDIT: After the phone swap, the blurry picture is gone, now the image is crystal clear without any problems whatsoever:
http://postimg.org/image/fc6v40yvd/full/
Best regards,
Eugen.
http://forum.xda-developers.com/xperia-z5/general/im-doing-tally-z5-series-affected-left-t3242302
Contact Support
Just have a conversation with Sony Xperia Support center. They would be in better position to answer your queries.
Regards,
Riya Taneja
Xperia support might say "we need to take a look" but i dont want to send it to repair as if its defective i can just go to store and swap for a new one.
Please guys, i beg you to take a moment to relook at the photo, this time i added some arrows explaining the issue to be quicker and easier for you to see what im talking about and compare with yours.
http://postimg.org/image/xap2uuy6l/full/
Its not that the left side is blurred, it starts ok then blurrs then goes ok again.
Sorry, but the test doesn't prove anything. Probably unstable image from screen refresh and being hand-held. Try it with a real image - not a monitor - and set it on holder or tripod of some kind. Also don't zoom in so close... cameras have a minimum focal length. My initial impression is that it's not a problem with the Z5.
this is a flat TFT LCD DVI monitor, refresh rate doesnt work as you think they do on digital monitors with digital connections, only the area needing refreshing is actually refreshed rather than the entire screen like a CRT, and if my hands were shaking it was the entire picture that was going to be blurred and not just a tiny portion of the center picture, i also took several photos and the blurred area is exactly in the same spot no matter where i do it.
I just wanted to know if that blurry spot was normal on all phones but this does not semm to be true so ill have to replace mine today.
TheWarKeeper said:
this is a flat TFT LCD DVI monitor, refresh rate doesnt work as you think they do on digital monitors with digital connections, only the area needing refreshing is actually refreshed rather than the entire screen like a CRT, and if my hands were shaking it was the entire picture that was going to be blurred and not just a tiny portion of the center picture, i also took several photos and the blurred area is exactly in the same spot no matter where i do it.
I just wanted to know if that blurry spot was normal on all phones but this does not semm to be true so ill have to replace mine today.
Click to expand...
Click to collapse
You need to take a landscape photo with focus mode set to infinty or touch to focus and touch the sky for a proper image to view if your camera lenses are decentered, has micro particles on the sensor lenses and/or lens cover is not 100% flat and clear. Could be any of those reasons, none or a mix. If you haven't dropped your phone or in any way damaged it then and have spots of bluriness then it might be factory faulty, either lenses, cover lens or a mix.
Though by looking at your photo I would doubt the lenses are decentered as it appears as soft spots in random places around focus place and doesn't look like decentered lens(es) as there is no "multi-step" ghosting. I would think the cover lens is warped or have spots, dirt smudging or on the sensor lens. But do try the above first. Remember to put the phone on something stable as you dont want any vibrations for test photos.
TheWarKeeper said:
this is a flat TFT LCD DVI monitor, refresh rate doesnt work as you think they do on digital monitors with digital connections, only the area needing refreshing is actually refreshed rather than the entire screen like a CRT, and if my hands were shaking it was the entire picture that was going to be blurred and not just a tiny portion of the center picture, i also took several photos and the blurred area is exactly in the same spot no matter where i do it.
I just wanted to know if that blurry spot was normal on all phones but this does not semm to be true so ill have to replace mine today.
Click to expand...
Click to collapse
Sigh... I'm not going to get into an LCD display discussion. Try a real image with text like a book or a piece of paper. Don't get too close while taking the pic. Set the phone on a stable surface and use the self-timer. We're trying to diagnose the camera, not your monitor.
---------- Post added at 11:58 AM ---------- Previous post was at 11:22 AM ----------
FYI, why it's not a good idea to use an LCD monitor to test a camera: PWM. Yes, LCDs can cause flicker, banding, distortion. That's not to mention flicker induced by room lighting on the monitor. So in summary, please do not use a monitor to test a camera.
http://www.wired.com/2014/08/wtf-just-happened-my-computer-monitor-looks-awful-on-camera/
I can see the wording of "how powerful" is blur. The word below it of "certain" also blur, as well as below it of "straightened out".
Both edge of left and right is also blur.
But still better you test with others object for example a wording from book/paper not the monitor.
Great news guys! swapped my phone at the store for a new one and here are the new results
http://postimg.org/image/fc6v40yvd/full/
Blurr free, YESS!! im so happy with my new phone now! With the old phone when i got at the store I even snapped a book text instead of a monitor text (taking into account what you guys tought about the monitor) to prove them that it was the lens fault and not just a bad photo and they seen the blurr exactly in the same spot of the camera lens no matter how many photos i took.
I came from samsung galaxy s6 very dissapointed that my phone had isocell instead of the sony imx240, isocell sensor (same of the galaxy s5) has way worse edge blurr than this phone and the details are soft all across the board, the only advantage of the isocell is in low light because of its OIS, but even then the colors are washed out and black is tinted as purple with iso ver 400, noise is visible more with xperia z5 than with isocell but the xperia z5 has much more sharp image and details in daylight come much clearer, overall i like this phone alot more than the galaxy s6.
Thank you all for your time guys, im a happy owner now and i when i get the chance ill do my best to help you with what info i can for the attention paid to my cry for help.
Cheers.
Sigh... i spoke too soon, this new phone has 6 dead pixels, what on earth is going on with Sony?
I guess I'm lucky then, I don't notice any blur in my pictures, or what do you guys think? https://goo.gl/photos/DneNpL8KVQtobykc7

Display washed out in Galaxy S7

When I'm in bright sunlight the display get's washed out. As far as I know this doesn't happen in normal bright fluorescent light. Anybody else experienced it?
Krust4 said:
When I'm in bright sunlight the display get's washed out. As far as I know this doesn't happen in normal bright fluorescent light. Anybody else experienced it?
Click to expand...
Click to collapse
Same thing happens here, your phone tells you that it is optimizing the display for direct sunlight.
Its an adaptiv display feature.
It has a special super-bright mode when in bright sunlight, but that's the trade-off. Try going to Settings / Display and choose something other than Adaptive display and see if that stops it.
I have my settings on Photo and have same thing, it is really annoying i wish Samsung could have an option/toggle to enable or disable this feature. At first i thought it's a bug with a phone.

Display isn't bright?

Have had the Note 20 Ultra from T-Mobile since Wednesday and then phones been be great except for two flaws. One is native gestures still not working 100% smooth with third party launchers - which is okay, I am using FNG anyway, but another is the screen brightness.
Despite being in direct sunlight, the panel doesn't get bright. Samsung claims 1500 nits of brightness, it definitely doesn't get there through either manually sliding the brightness or setting it to auto brightness. Definitely isn't as bright as my OnePlus 8 Pro.
I've annoyingly factory reset the phone to no avail. Anyone else having issues?
Yes, it's not great .... my Note 8 is brighter in normal use.
The panel does get brighter in strong daylight but the maximum manual brightness is poor.
AhsanU said:
Have had the Note 20 Ultra from T-Mobile since Wednesday and then phones been be great except for two flaws. One is native gestures still not working 100% smooth with third party launchers - which is okay, I am using FNG anyway, but another is the screen brightness.
Despite being in direct sunlight, the panel doesn't get bright. Samsung claims 1500 nits of brightness, it definitely doesn't get there through either manually sliding the brightness or setting it to auto brightness. Definitely isn't as bright as my OnePlus 8 Pro.
I've annoyingly factory reset the phone to no avail. Anyone else having issues?
Click to expand...
Click to collapse
It is some kind of protection bec extra brightness for long time damage Amoled displays so they decided to limit it in normal usage
It's bright but the white point is um, weird.
Reminds me of the Surface Pro IPS panels, always, always, too green!
And the ability to adjust RGB levels has nary an effect!
I want the ability to calibrate the display properly FFS!
I know it's a decent display but gimping the calibration ability makes about as much sense as putting bias ply tires on a Ferrari!
cpufrost said:
It's bright but the white point is um, weird.
Reminds me of the Surface Pro IPS panels, always, always, too green!
And the ability to adjust RGB levels has nary an effect!
I want the ability to calibrate the display properly FFS!
I know it's a decent display but gimping the calibration ability makes about as much sense as putting bias ply tires on a Ferrari!
Click to expand...
Click to collapse
If you read what samsung say about its Dynamic Amoled panels you will understand why the white looks weird , they have implemented a Hardware blue light filter which filters the harmful blue light emissions that is why all new samsung displays show white a llitle yellowish , It might not be the best looking but is is safe for your eyes and renders a more accurate colors.
hoss_n2 said:
If you read what samsung say about its Dynamic Amoled panels you will understand why the white looks weird , they have implemented a Hardware blue light filter which filters the harmful blue light emissions that is why all new samsung displays show white a llitle yellowish , It might not be the best looking but is is safe for your eyes and renders a more accurate colors.
Click to expand...
Click to collapse
What's the point of having that?
It's clearly inferior to my professional displays.
Proper calibration and white point is *everything*.
It does NOT look yellowish, it has too much green.
That looks horrible.
After using it for a day I cannot believe how much better my Mac, 11 Pro Max and S20 Ultra looks.
Can you please tell me if the screen isn't bright if adaptive mode is turned off? (120hz)
Sent from my SM-N975F using Tapatalk
Brava27 said:
Can you please tell me if the screen isn't bright if adaptive mode is turned off? (120hz)
Sent from my SM-N975F using Tapatalk
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Click to collapse
Its significantly brighter with it off
mickeyleah said:
Its significantly brighter with it off
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Click to collapse
Yeah, that is what someone pointed out. Thanks
Compared to the Note 10+ it's significantly brighter even in 120Hz, and I often need to lower it even with the adaptive brightness on.
It's somewhere around 1/5 or 1/6th of the brightness bar.

mobile light sensor placement

I think screen brightness could be greatly improved by having a light sensor on the back as well as the front, and doing some math between the two to get appropriate brightness. Has this not already been done?
Screen brightness should most match the brightness of the environment behind the phone where your eyes are looking, not in front of it.
I find the brightness of many phones to be annoying and inaccurate, and constantly change unnecessarily of there is a light directly above the phone. I have a OP 7T
Hi! It's a good idea, but manufacturers have already thought about it.
The Samsung Galaxy Note7 was the first smartphone with such a setup (brightness sensors on both the front and the back), and since then, many other manufacturers have followed suit: Apple with the iPhone 14, Google with the Pixel 6, and probably some others.
Wow amazing its already done. Thanks for your response.

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