Contrast Ratio - Fascinate Q&A, Help & Troubleshooting

Just curious, anybody know what the contrast ratio is on theses phones?
Sent from my SCH-I500 using XDA Premium App

Nearly infinite since OLEDs can achieve very bright whites and black levels of near zero, so low that instruments can't even measure it.

Wvga 480x800

GoogleAndroid said:
Nearly infinite since OLEDs can achieve very bright whites and black levels of near zero, so low that instruments can't even measure it.
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wow pretty cool.
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is there a difference between amoled and oled?

jpaulwaite said:
is there a difference between amoled and oled?
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Yes and no, amoled is a specific type of oled display. An amoled display is always an oled display, but an oled may or may not be an amoled.

jpaulwaite said:
is there a difference between amoled and oled?
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Not really. AMOLED just mean Active Matrix Organic Light Emitting Diode. An OLED is an Organic Light Emitting Diode, and can either have an active or passive matrix. The AM in front of OLED is uselessly tacked on. LCDs are usually active matrix and no one calls them AMLCDs. It's just marketing BS.

lowtech80 said:
Wvga 480x800
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Wow...that's resolution, not contrast ratio...

Yeah...my bad want paying enough attention
EC01/nitro honeycomb

Related

Off-putting display resolution?

The SGS2 retains it's 800x480 resolution. Yet it further increases its screen size.
That's the only factor that's hampering me from purchasing one.
Even the Atrix gets a heightened resolution and yet over a smaller area.
Anyone else facing this dilemma?
Well the Atrix has pentile matrix sub-pixels like the SGS had, but the SGS2 doesn't.
So the effective resolution should be pretty similiar.
More here.
I'm thinking of getting a Nexus S over the Samsung S2...Do you think the screen on the Samsung S2 is a huge jump from the Super AMOLED Nexus S? Is it really worth it...
Long story short, the SGS2 has more sub-pixels than the Atrix, and double the SGS.
Captivate, XDA Premium
Lol. Off-putting seems to be going viral.
Here is another way to look at it.
The PPI for the SGS 2 is 218.49, the PPI for the SGS is 233.24, and the PPI for the Atrix is 275.36. BUT, if we add in the extra sub-pixels from the SuperAmoled Plus display the theoretical PPI is 327.74. The iphone 4 has a PPI of 326, so it is actually sharper than an iphone 4.
Didn't realize it was so sharp but when you put it that way, it makes me want this phone even more. =)
ryude said:
Here is another way to look at it.
The PPI for the SGS 2 is 218.49, the PPI for the SGS is 233.24, and the PPI for the Atrix is 275.36. BUT, if we add in the extra sub-pixels from the SuperAmoled Plus display the theoretical PPI is 327.74. The iphone 4 has a PPI of 326, so it is actually sharper than an iphone 4.
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correct me if i'm wrong but PPI is PPI - sub pixels contribute nothing to PPI so your theory above is totally wrong.
And all the people just repeating jibberish about how more sub pixels make a display clearer/ significantly better are clueless about resolution.
kona786 said:
correct me if i'm wrong but PPI is PPI - sub pixels contribute nothing to PPI.
And all the people just repeating jibberish about how more sub pixels make a display clearer/ significantly better are clueless about resolution.
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It's a theoretical boost to PPI, because it does actually increase sharpness and reduces eye strain due to clearer text/images. Sub-pixels do actually make the display clearer.
Here's a video showing Super Amoled Plus vs an iphone 4 (IPS display).
http://www.youtube.com/watch?v=SDIEUv-xkfI
ryude said:
Here is another way to look at it.
The PPI for the SGS 2 is 218.49, the PPI for the SGS is 233.24, and the PPI for the Atrix is 275.36. BUT, if we add in the extra sub-pixels from the SuperAmoled Plus display the theoretical PPI is 327.74. The iphone 4 has a PPI of 326, so it is actually sharper than an iphone 4.
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Just all wrong. The iphone 4 uses a regular rgb stripe arrangement. Its definitely the highest ppi out.
Samoled+ its simply a standard rgb layout.
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eallan said:
Just all wrong. The iphone 4 uses a regular rgb stripe arrangement. Its definitely the highest ppi out.
Samoled+ its simply a standard rgb layout.
Sent from my MB860 using Tapatalk
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Wrong.
Super AMOLED Plus displays are an upgrade to Super AMOLED. They use a real-stripe subpixel matrix and not pentile - and so has 50% more sub-pixels. The PPI is a bit larger but Samsung will soon make them at much higher resolutions. Super AMOLED Plus displays are also thinner, brighter and use 18% less energy than the older Super AMOLED displays.
Super AMOLED has 2 sub-pixels per Pixel. So, for a resolution of 800*480, it has 768000 sub-pixels.
The Super AMOLED Plus has 50% more sub-pixels than Super AMOLED with PenTile Matrix. So, for a resolution of 800*480, it has 1152000 sub-pixels.
A Standard Matrix RGB use 3 sub-pixels per pixel. So, for a resolution of 800*480, it has 1152000 sub-pixels. Exactly the same number as the Super AMOLED Plus.
Retina Display has a resolution of 960*640 with 3 sub-pixels per pixel wich gives 1843200 sub-pixels.
ryude said:
Wrong.
Super AMOLED Plus displays are an upgrade to Super AMOLED. They use a real-stripe subpixel matrix and not pentile - and so has 50% more sub-pixels. The PPI is a bit larger but Samsung will soon make them at much higher resolutions. Super AMOLED Plus displays are also thinner, brighter and use 18% less energy than the older Super AMOLED displays.
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Both the iphone screen and SAMOLED+ have the same amount of subpixels the iphone has a higher ppi but the color are better on SAMOLED+
scores87 said:
Both the iphone screen and SAMOLED+ have the same amount of subpixels the iphone has a higher ppi but the color are better on SAMOLED+
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Yes, the iphone has more pixels but from my experience side by side with a captivate and an iphone 4 the sgs 2 will blow the iphone out of the water.
ryude said:
Yes, the iphone has more pixels but from my experience side by side with a captivate and an iphone 4 the sgs 2 will blow the iphone out of the water.
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It comes to personal preference in the end really. I prefer the my Desire's AMOLED, while my friend prefers the iPhone's display over his SGS' SAMOLED.
ryude said:
Wrong.
Super AMOLED Plus displays are an upgrade to Super AMOLED. They use a real-stripe subpixel matrix and not pentile - and so has 50% more sub-pixels. The PPI is a bit larger but Samsung will soon make them at much higher resolutions. Super AMOLED Plus displays are also thinner, brighter and use 18% less energy than the older Super AMOLED displays.
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I'm quite right. Samoled+ is awesome but your explanation in relation to the iphone 4 (or really and lcd except the atrix) was incorrect.
Sent from my MB860 using Tapatalk
Does that mean that the SGS had been having the poorest resolution all along? Seeing that it has only 2 sub pixel.
ShadedCyan said:
Does that mean that the SGS had been having the poorest resolution all along? Seeing that it has only 2 sub pixel.
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Not really, it's not that simple. It has a resolution of 800x480. Each of those pixels can be made of whatever type of sub-pixel layout the decide. The atrix looks quite a bit different than the normal SAMOLEDs. The SGS2's subpixel resolution is lacking I suppose. Typically people can't make out individual subpixels.
Too put it another way:
Red and blue were 240x400 on the SGS. Green was the full 480x800.
On the SGS 2, all three will be 480x800.
On my phone, when the battery is low, the solid red battery meter looks like checkerboard.
Also, who cares about the iPhone's screen... It's just going to shatter anyway with it's wanna-be gorilla glass.
Captivate, XDA Premium

Pentile that bad?

I have heard people say the pentile screens make edges look jagged etc. Is this true? I mean at something like 280+ppi I wouldn't think it would look jagged at all! Is it true?
It varies by device. I've not used a Note, but it should be similar to a Galaxy Nexus. The colors are visibly greener than the Super AMOLED+ (non-pentile) displays I've used, but the Nexus at least does not have the jagged edge issues that appear on the RAZR and some of the other qHD displays I've used. I don't know if it's because of the higher resolution/pixel density or some other property of the subpixel matrix, but I've never heard that particular criticism of a Note.
Not at this PPI.
Maroon Mushroom said:
Not at this PPI.
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Agreed, only of you zoom in super super close on text.
Sent from my GT-N7000 using Tapatalk
Also something to keep in mind is that pentile offers better outdoor performance and battery life
Maroon Mushroom said:
Also something to keep in mind is that pentile offers better outdoor performance and battery life
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Just so I know, why is that?
ap3604 said:
Just so I know, why is that?
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For the same reason people say it looks "bad" because it has less sub pixels so it will use less power. Though at this pixel density you would have to have a microscope because on my captivate you would have to be viewing red on black and be obnoxiously close to see it. Also it has better outdoor visibility because it can I believe get brighter then non pentile displays. For more info Google is amazing.
I have PenTile on my Photon 4G and while I can certainly see it, it doesn't bother me. When the brightness is turned way up you notice it more. I agree that at 1280x800 on a 5.3" display you're not going to notice it.
As others noted, PenTile RGBW has the advantage of offering more brightness for less power (due to the "W", I believe?) but it depends on the screen. The Droid 4 is PenTile, yet it is significantly darker than my Photon 4G (also PenTile) - both are Moto phones, so I was surprised by that difference. The Photon has the brightest, most outdoor-readable display (non-reflective) I have ever seen.
I can't recall reading anything other than "awesome" to describe the Note screen, though, so I think there's nothing to worry about here.
hausman said:
I have PenTile on my Photon 4G and while I can certainly see it, it doesn't bother me. When the brightness is turned way up you notice it more. I agree that at 1280x800 on a 5.3" display you're not going to notice it.
As others noted, PenTile RGBW has the advantage of offering more brightness for less power (due to the "W", I believe?) but it depends on the screen. The Droid 4 is PenTile, yet it is significantly darker than my Photon 4G (also PenTile) - both are Moto phones, so I was surprised by that difference. The Photon has the brightest, most outdoor-readable display (non-reflective) I have ever seen.
I can't recall reading anything other than "awesome" to describe the Note screen, though, so I think there's nothing to worry about here.
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The brightness of a LCD screen (almost all Moto Droid phones are PenTile LCD) is determined by the backlite light source, not the screen pixel layout. To LCD screens, the power usage is constant regardless of the screen pixels on of off unless you can also turn the backlite light down.
AMOLED doesn't have a backlite light source. It depends on each pixels to emit light itself.
Yeah, I forgot that there are multiple PenTile layouts. Most Moto phones are RGBW, while the Note screen is RGBG, so it doesn't have the same outdoor visibility/brightness advantage.

Is the Galaxy SIII's screen bright enough?

Hi,
Concerned that the SIII's max brightness is much dimmer than competing phones. Iphone 4, 4s, HTC One x, are all about 500 nits.
The SIII's is only around 330.
Is this an issue?
I do like bright screens, and I suspect that the dominant reason for the battery life being better on the SIII is simply that the screen isn't as bright.
Thanks
lamenramen said:
Hi,
Concerned that the SIII's max brightness is much dimmer than competing phones. Iphone 4, 4s, HTC One x, are all about 500 nits.
The SIII's is only around 330.
Is this an issue?
I do like bright screens, and I suspect that the dominant reason for the battery life being better on the SIII is simply that the screen isn't as bright.
Thanks
Click to expand...
Click to collapse
Yes, the colour contrast makes the phone brighter than original, due to the Amoled screen. You won't really notice a difference unless you compare them side by side in a dark room.
Man i can't look at the screen at full brightness it's too bright and only use when outside in sun. Normally keep it half or slightly more. However i found auto to be not too effective as it makes screen too dim.
sak500 said:
Man i can't look at the screen at full brightness it's too bright and only use when outside in sun. Normally keep it half or slightly more. However i found auto to be not too effective as it makes screen too dim.
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With CM/AOKP you can change the auto values so its not too dim
Keep it Classy, Cali.
CoNsPiRiSiZe said:
With CM/AOKP you can change the auto values so its not too dim
Keep it Classy, Cali.
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Click to collapse
Really? I use cm. How can I change that?

Display details : Lumia 920 and iphone5

Hello everyone, nokia lumia 920 has the best screen of the new iPhone5?
I am interested in the details of the display.
SuperXDADev said:
Hello everyone, nokia lumia 920 has the best screen of the new iPhone5?
I am interested in the details of the display.
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Click to collapse
iPhone screen is no longer the best anymore. There are a lot of phones at this point has higher PPI than iPhone. In this case, Lumia 920 has more advanced technologies than iPhone. Fast refresh rate (the only 1 that has 60Mhz refresh rate screen), high PPI, ClearBlack for easy reading outside, IPS panel, and also super sensitivity.
spincel said:
iPhone screen is no longer the best anymore. There are a lot of phones at this point has higher PPI than iPhone. In this case, Lumia 920 has more advanced technologies than iPhone. Fast refresh rate (the only 1 that has 60Mhz refresh rate screen), high PPI, ClearBlack for easy reading outside, IPS panel, and also super sensitivity.
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Display of Lumia 920 is better of iphone5 in the details?
yes, i'm not sure what other details you want, but in every technical way, the l920's screen is better than the iphone 5. most newer android phones are better in many ways as well.
here's the ways its better:
higher pixel density (text is sharper, images are crisper)
higher refresh rate (images move smoother)
clearblack display (easier to read in sunlight)
supersensitive touch (can use with gloves, fingernails, or anything else that isn't your finger, as well as your finger)
spincel said:
iPhone screen is no longer the best anymore. There are a lot of phones at this point has higher PPI than iPhone. In this case, Lumia 920 has more advanced technologies than iPhone. Fast refresh rate (the only 1 that has 60Mhz refresh rate screen), high PPI, ClearBlack for easy reading outside, IPS panel, and also super sensitivity.
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Click to collapse
It's a 60Hz display and pretty much every modern smartphone has a 60Hz screen. It's just marketing! As for Clearblack that was for the OLED screen in the 900, this one is IPS and is called PureMotion HD +
As for the screen quality itself I've found the colours are pretty damn good. Waiting for Display Mate to do their analysis though.
PyroCF said:
It's a 60Hz display and pretty much every modern smartphone has a 60Hz screen. It's just marketing! As for Clearblack that was for the OLED screen in the 900, this one is IPS and is called PureMotion HD +
As for the screen quality itself I've found the colours are pretty damn good. Waiting for Display Mate to do their analysis though.
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I had read somewhere that they had gotten it to 23Hz? I may be wrong though.
They polarized (a layer? of) the screen so that it's easier to read in sunlight.
Also, although it's called PureMotion HD+ and they've dropped the ClearBlack name, they still reference to that type of display technology for darker blacks in comparison to other SLCD2 technologies (ex. HTC 8x/One X)
@OP, just recapping, but....
Better than iPhone because:
Bigger screen (more opinion than anything)
Higher pixel density (332 ppi vs iPhone 5's 326)
Ability to use screen with gloves (i.e. skin contact not required to operate screen)
The screen is essentially better in every way in comparison to the iPhone 5 other than the lamination that the iPhone has (i.e. the screen appears much closer to the surface of the glass itself when compared to the Lumia 920's). If you're REALLY looking into great screens, you should just go to Verizon and pick up their Droid DNA.
oceansaber said:
I had read somewhere that they had gotten it to 23Hz? I may be wrong though.
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I'm sorry but do you even understand screen refresh rates? 23Hz would be appalling by anyone's standards.
The higher, the better for future reference!
PyroCF said:
I'm sorry but do you even understand screen refresh rates? 23Hz would be appalling by anyone's standards.
The higher, the better for future reference!
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Sorry thinking ms. My bad. I remember something about the PureMotion HD+ referring to having the smallest delay between touch and response. I don't know where, but there's a couple articles and stuff referencing it haha. It supposedly has the fastest response times of any screen for a smartphone on the market.
actually the lumia 920 is the first smartphone with a 60hz refresh rate and its response time is in the single digits
just check out some of the more detailed/reputable reviews and it will give you a compare of other brands, i can't recall which ones exactly as i read them in passing
and clearblack is nokias name for their polarization filter on screens
PyroCF said:
It's a 60Hz display and pretty much every modern smartphone has a 60Hz screen. It's just marketing! As for Clearblack that was for the OLED screen in the 900, this one is IPS and is called PureMotion HD +
As for the screen quality itself I've found the colours are pretty damn good. Waiting for Display Mate to do their analysis though.
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Click to collapse
Nope, I don't think every smartphone has 60Hz screen. As for the name, Nokia combine those techs into one and called it PureMotion HD+, which consists of:
1. WXGA resolution
2. IPS LCD with 60Hz refresh
3. ClearBlack technology for viewing outdoor
4. High PPI
5. Super sensitivity touch
So if you take all of them and combine them all, it is PureMotion HD+.
Every smartphone other than the Lumia 920 has a 30Hz screen. The 920 is the first phone with a 60Hz screen.
Clearblack is a combination of a polarizing layer to reduce glare and improve visibility in sunlight and also (iirc) they are also using an optically bonded stack, fuzing the digitizer to the cover glass.
Sent from my RM-820_nam_att_100 using Board Express
Also iphone5 have a 30hz panel display?
Inviato dal mio Galaxy Nexus con Tapatalk 2
Misleading title !
adiliyo said:
Every smartphone other than the Lumia 920 has a 30Hz screen. The 920 is the first phone with a 60Hz screen.
Clearblack is a combination of a polarizing layer to reduce glare and improve visibility in sunlight and also (iirc) they are also using an optically bonded stack, fuzing the digitizer to the cover glass.
Sent from my RM-820_nam_att_100 using Board Express
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Can you cite this please? This would mean every other phone would look like it's running at 30fps which you would notice. Also clear black was marketing for nokias oled screens.
PyroCF said:
Also clear black was marketing for nokias oled screens.
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Yes, and that's the phrase they marketed because that was all they had that was unique to them in the screen department. Now, they use Puremotion HD+, which includes ClearBlack along with a number of other technologies/features, as noted above. Nokia's own developer 920 spec page lists "ClearBlack" in both the description and the list of display technologies.
The screen is simply amazing. It puts any other smartphone screen I have seen to shame in actual real world usage.
This is the first phone I have owned that I can read the screen in the sun, with my sunglasses on. Amazing.
The viewing angles are incredible, the colors are bright and vibrant but not as saturated as AMOLED, and not as dull and lifeless as HTC Screens.
crawlgsx said:
The screen is simply amazing. It puts any other smartphone screen I have seen to shame in actual real world usage.
This is the first phone I have owned that I can read the screen in the sun, with my sunglasses on. Amazing.
The viewing angles are incredible, the colors are bright and vibrant but not as saturated as AMOLED, and not as dull and lifeless as HTC Screens.
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It's funny you mention this because coming from a Dell Venue Pro with an amoled screen that I've used for a year and half, I immediately noticed the terribly dull colors of my 920 screen. Now that I've used my 920 for a few days, I booted up my DVP for giggles and I couldn't help but notice how really overly saturated the colors were! I am truly enjoying my 920's screen as I think it is a good blend between SLCD and Amoled and outdoor viewing really kicks butt on this screen.
The source is from here http://conversations.nokia.com/2012/11/16/how-nokia-gave-the-lumia-920-the-worlds-fastest-screen/ which cites Nokia's Senior Technology Manager. The main take away from this is that the L920 LCD screen has a 9ms pixel response time while others on average is about 23ms. There is no mention of iPhone so we don't know what response time of iPhone screen is.
This is not about 60Hz vs 30Hz. It is about pure pixel response time which is critical in display moving objects in video of games. For comparison, your typical PC desktop LCD monitor need to have < 5ms response time to be comfortable for playing games. 23ms response time is only good for reading emails.
To recap, Nokia's screen has better pixel density than iPhone's retina display. Higher resolution than iPhone5. Maybe faster pixel response time and higher contrast than iPhone (we don't know until someone benchmarked it). Tradditionally, iPhone screens have very high color accuracy. We don't know what Nokia screen has.
I see so much hate for the iPhone here, actually iPhone screen is pretty good they both have 60hz, Lumia has a little higher PPI(but not noticeable) and can be used with gloves, iPhone in its own side has the in cell technology that take away the touch panel and implement it directly in, igzo technology that reduce battery usage.
Sent from my HTC One X using xda app-developers app
batna.antab said:
I see so much hate for the iPhone here, actually iPhone screen is pretty good they both have 60hz, Lumia has a little higher PPI(but not noticeable) and can be used with gloves, iPhone in its own side has the in cell technology that take away the touch panel and implement it directly in, igzo technology that reduce battery usage.
Sent from my HTC One X using xda app-developers app
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It is nothing but fan boys citing from their side of marketing BS. I mean both sides. For example, you made it like iPhone5 invented in panel touch implementation. I'm not so sure. Samsung did it with its Super AMOLED Plus screen about two years ago to reduce the screen thickness and sun reflection. Apple probably just re-invented (like many of its claims) for LCD panels.

Can I make the Screen Brighter? I have root!

Comparing my G5 with my brothers Samsung J5 at the weekend and I was disappointed with my screen brightness. It was noticeably dimmer and harder to read in the bright sunlight.
Can this be improved?
Any information would be helpful. That's my biggest gripe with this phone
Sent from my LG-H830 using XDA-Developers mobile app
Have the same problem and dont found any answer yet.
Have you thought it might be a problem with the hardware in your phone? There is no other phone that beats the sunlight readability than my G5, Amoled screens are awful to read in sunlight and other lcd screens even worse. The G5 in sunlight is perfectly readable in full summer sun at 75 % on mine.
Jonathan-H said:
Have you thought it might be a problem with the hardware in your phone? There is no other phone that beats the sunlight readability than my G5, Amoled screens are awful to read in sunlight and other lcd screens even worse. The G5 in sunlight is perfectly readable in full summer sun at 75 % on mine.
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I have the same problem as many out there
Sent from my LG-H850 using XDA-Developers mobile app
Sunlight legibility on this is very very good....but it must be on AUTO brightness control. If you move into bright sunlight you can see the phone brightness jump into boost mode (Like latest gen samsung phones) and it is super readable in direct bright sunlight... As bright as my s7 edge in daylight (and it is BRIGHT). Had a nexus 6P and loved it, but its AMOLED panel was utter pants in bright daylight...lucky if it hit 350 nits. The G5 (and the S7 edge) have very good daylight screens. Recommended outdoor viewing phone.
I think that the software is still a bit buggy with this feature. It works, then it doesn't. I wish I could manually enable it or at least set it to start even if the sunlight is not directly aimed at the sensor. But when it works, it is extremely bright.
falsivas said:
Sunlight legibility on this is very very good....but it must be on AUTO brightness control. If you move into bright sunlight you can see the phone brightness jump into boost mode (Like latest gen samsung phones) and it is super readable in direct bright sunlight... As bright as my s7 edge in daylight (and it is BRIGHT). Had a nexus 6P and loved it, but its AMOLED panel was utter pants in bright daylight...lucky if it hit 350 nits. The G5 (and the S7 edge) have very good daylight screens. Recommended outdoor viewing phone.
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Thanks, didn't know about this
kchannel9 said:
Thanks, didn't know about this
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But it works unreliably, I wish I could just set it to work manually, like a second slider over 100%
Sent from my LG-H850 using XDA-Developers mobile app
cad0p said:
But it works unreliably, I wish I could just set it to work manually, like a second slider over 100%
Sent from my LG-H850 using XDA-Developers mobile app
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It doesn't make any sense.. 100% should have been the maximum. I guess LG didn't want people to use it often and drain the battery quickly.
galr said:
It doesn't make any sense.. 100% should have been the maximum. I guess LG didn't want people to use it often and drain the battery quickly.
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My guess is that going over 100% it alters the colors to achieve visibility, otherwise it doesn't make any sense, I agree with you
Sent from my LG-H850 using XDA-Developers mobile app

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