Capacitive screen accuracy? - Desire General

I got myself a Desire over the weekend and I'm not entirely happy with the accuracy of the keyboard. I have a Touch HD and find the screen to be much more accurate when it comes to typing.
Does anyone else find this is a problem? I have tried calibrating the screen/keyboard but it doesn't really seem to be much different. It's a good job the XT9 does a good job of correcting the huge number of mistakes that I'm making.
Is this just one of the problems of a capacitive screen, is the keyboard layout not quite as effective or do I just need to get used to it?

I also came from a touch hd, and I felt the same way until I got a bit more used to the screen, I find with the touch hd that it was more responsive, but you had to exert an amount of pressure on the screen.
This seems to be where I was going wrong with the desire as I was pushing the screen like I did on the HD effectively making contact with a larger contact area on the screen.
I have found that being very light with my touch on the desire has helped no end, and when I pick up the HD now it doesnt register most of my presses

Related

Rhodium or Hero

Tell me guys.
Went from a tytn2 to a Raphael...
Should I go for the Hero or TP2 ?
Never used a Hero.
The TP2 from T-Mobile is hands-down the best WM-based device I've ever had my paws on. You can pry it from my cold, dead fingers.....
Macedon2000 said:
Should I go for the Hero or TP2 ?
Click to expand...
Click to collapse
Do you want a Windows Mobile phone with a brilliant physical keyboard and lots of neat business features that also does a reasonable job of multimedia, or do you want an Android-powered, multimedia-oriented device with a capacitive touchscreen that supports multi-touch, and which also does a reasonable job of business-oriented stuff? The two are really very different. It would make more sense to be having trouble deciding between a Hero an iPhone - they're much more similar in philosophy (IMO).
i dint really get the difference between the two types of screens...capacitive and resistive.
I played a bit with an iPhone 3GS today and it felt really good...i like the iPhone because everything just works... but I got bored after 3min of playing with it.
just the thought of not being able to flash new roms etc. makes me puke.
I like my RAPH but i would like a bigger screen, better(faster/smoother) handling of multimedia(pics/music/video) like iPod on iPhone, sort of.
so its down to winmo or android.
I was also thinking weather to go for hero or the touch pro2 but the touch pro2 has an amazing keyboard and watching movies on it look pretty impressive and i dont mind it not using a 3.5 mm jack as i use a stereo bluetooth headset. So i went for the touch pro2 and WOW im glad i did, im writing this from my touch pro 2 now.
It also has a reasonably good stock rom, the stock rom on my wizard was hopeless and if it wasnt for xda-developers i would never of had it for so long.
TP2 definetly, because the hardware keyboard that for me is a must!
The telephone conferencing and voice features are really good. Easy to setup and to use. Sound is good too. Credit to HTC for adding features that are fundamental to a what a good business phone should have.
I really don't like the way the Hero looks. Just for that I would go with the TP2.
Macedon2000 said:
i dint really get the difference between the two types of screens...capacitive and resistive.
I played a bit with an iPhone 3GS today and it felt really good...i like the iPhone because everything just works... but I got bored after 3min of playing with it.
just the thought of not being able to flash new roms etc. makes me puke.
I like my RAPH but i would like a bigger screen, better(faster/smoother) handling of multimedia(pics/music/video) like iPod on iPhone, sort of.
so its down to winmo or android.
Click to expand...
Click to collapse
capacitive screens are designed for finger-friendly touches. when you touch the screen with your finger, the press generates an electric stimulus that the phone reads as a press. capacitive screens can't use normal styli, so there is a loss in accuracy
resistive screens are designed for accuracy, due to the use of styli
I got the Tmobile Touch Pro2 and I am very happy with it - awesome screen size and acceptable thickness for a fullsize keyboard. hulu.com on skyfire for this screensize totally rocks. I have heard that the flash browser of Hero is slow, but then again - it hasn't been XDA-fied yet (not that I know of, anyway).
But I am in the same boat as you - want the Hero too!!!
Good news is that I have a work ATT phone that will be up for renewal in October, hopefully when the Hero comes in!
Can't really help you with your choice except say - go to the Tmobile store and see the TMobile touch pro2 in person.
And don't count out the diamond2 either.
It truly is a great time to have HTC shares....hmmm maybe I should be looking into that! lol!
poppinpengawen said:
capacitive screens are designed for finger-friendly touches. when you touch the screen with your finger, the press generates an electric stimulus that the phone reads as a press. capacitive screens can't use normal styli, so there is a loss in accuracy
resistive screens are designed for accuracy, due to the use of styli
Click to expand...
Click to collapse
Resistive screens need to be pressed quite hard, while capacitive ones only need to be touched lightly. Capacitive screens tend to be more responsive, so they will probably track your finger better when scrolling, and there's less likely to be any ambiguity about whether you've pressed something or not. But the most significant difference (aside from the fact that you can't use a stylus with a capacitive screen) is that a capacitive screen, given appropiate OS support, can support multi-touch - that is, it can detect being pressed in more than one place at once.
So, on the Hero and iPhone if you're running (say) Google Earth, you can rotate the map by putting your thumb and forefinger on the screen and twisting your hand. You can also zoom in and out by putting thumb and forefinger either side of a section of the screen, then moving them together or apart. This is much more convenient and intuitive than the TP2's zoom bar.
Macedon2000 said:
I played a bit with an iPhone 3GS today and it felt really good...i like the iPhone because everything just works... but I got bored after 3min of playing with it.
just the thought of not being able to flash new roms etc. makes me puke.
Click to expand...
Click to collapse
A jail-broken iPhone is actually pretty flexible.
I almost bought an iPhone rather than a TP2. It was really only the cost that put me off in the end. (Not the absolute cost, but it's too expensive for what it is). The user-interface design on an iPhone really is beautiful - it's not just that everything works, it's that everything works intuitively and quickly and neatly. The lack of a physical keyboard was also a problem for me (as I'm rather clumsy and have short, fat fingers) but the on-screen keyboard on an iPhone is the best I've seen; and the lower resolution of the screen (on iPhone or Hero) niggles a bit - for mobile web-browsing the extra screen res on a TP2 or Diamond2 really makes a difference for reading small text.
The call quality is also very good on a TP2 - I need phones to be clear and loud as I'm partially deaf. People hear you very clearly on the TP2 as well, thanks to the high-quality soise-cancelling microphones.

On Screen vs Hardware Keyboard ?

On my Tilt, the screen is really too small to have a useful on-screen keyboard, but I suspect it would be a lot more usable on TP2's higher res screen. Do those of you with a TP2 already find that you don't really need the hardware keyboard with the bigger / better screen available ?
RacerX10 said:
On my Tilt, the screen is really too small to have a useful on-screen keyboard, but I suspect it would be a lot more usable on TP2's higher res screen. Do those of you with a TP2 already find that you don't really need the hardware keyboard with the bigger / better screen available ?
Click to expand...
Click to collapse
Emphatically not. The presence of the lovely physical keyboard was my single most important reason for buying a TP2. It's light years ahead of even the very best on-screen keyboard (and it has to be said that the TP2 on-screen keyboard is not the best there is, although it's pretty good - phones with capacitive screens do it better - but hard keys are much better still).
The on screen keyboard is pretty good compared to other HTC phones. I had the Touch HD with on screen as the only option. With the TP2 I can bang out a quick email or text with the on screen keyboard easier than I could with the Touch HD.
That being said the slide out keyboard is the best I've ever used.
RacerX10 said:
On my Tilt, the screen is really too small to have a useful on-screen keyboard, but I suspect it would be a lot more usable on TP2's higher res screen. Do those of you with a TP2 already find that you don't really need the hardware keyboard with the bigger / better screen available ?
Click to expand...
Click to collapse
For me that depends on the language I'm writing my message/text.
Having a german TP2, I use the hardware keyboard for german and english text, while using the onscreen keyboard for french as it is much faster and easier to enter special french signs there (é,è,à,ç aso).
In fact, the 'Symbol' option for the hardware keyboard is behaving somewhat arkward and is not really usable :-/
Actually there is no better keyboard than the hardware one
Not any virtula keyboard can be compared in confortability and speed of typing.
That´s because I love TP2!!
Just my opinion,
Whats the point of buying a qwerty device if you find screen keyboards acceptable?

[Q] Capacitive touch screen quality (Synaptics 3k)

Hi everyone
I just bought a DHD and I am quite happy with it.
The biggest problem that I have with the device is the fairly inaccurate touchscreen. I am wondering whether it is just my device or is anyone else having the same issue.
Just to clarify, the touchscreen found in DHD is a Synaptics 3000 rather than maxtouch as some people believed. (/sys/android_touch/vendor shows "Synaptics_3K_0x108") Synaptics touch panels are commonly believed to be of lower quality than Atmel ones. I am quite upset HTC did not use Atmel ones as they did on Evo 4G.
So, the problem:
The problem is the touchscreen fails to properly register my finger in the horizontal direction. Vertically there is no problem. If I slide your homescreens slowly and steadily in the horizontal direction, the screen sticks and jumps. Across the whole screen there are about 11 such "sticking positions". The stickiness is consistent across the screen. If you scroll webpages sideways or down in landscape mode, you see the scrolling is not smooth. But vertical scrolling there is no problem at all.
So basically I am having exactly the same behavior on my DHD as this guy in
youtube.com/watch?v=JiNa8EHkViE
If i draw diagonal lines with my finger with normal pressure, I get very wavy lines, very similar to Light pressure for Desire in
cache.gawker.com/assets/images/4/2010/01/500x_touchscreen.jpg
So I'm wondering whether anyone else is having the same problem as I do?
Can this be a design flaw (poor quality panel?) or driver flaw (touch algorithm fails to take into account for the characteristics of the panel?)
edit:
I think it is normal for capacitive touch screens to exhibit this behavior. But it is quite severe on my DHD. This is problematic because the low horizontal accuracy is annoying when you want to select text / adjust a slidebar / type in portrait mode.
If you ain't happy, return it.
I'm not sure 'if you ain't happy return it' is a very courteous response to a valid and well-thought-out post.
That's very interesting.... Just another in an increasing list of niggles I have with this phone. HTC seem to have cut a few corners with the DHD.
Sadly, unless one goes iPhone, there aren't many decent alternative devices out there for the more discerning smartphone user... otherwise I'd give HTC a wide berth myself.
No offence was meant when I stated that if your not happy with what you have bought, return it.
As with any high end consumer electronics, if it doesn't work as it should, get it replaced or get a refund.
andyharney said:
No offence was meant when I stated that if your not happy with what you have bought, return it.
As with any high end consumer electronics, if it doesn't work as it should, get it replaced or get a refund.
Click to expand...
Click to collapse
Thank you for your suggestion. Do you own a DHD? Can you contribute by sharing your experience on the accuracy of the touchscreen if you do?
I indeed do own a DHD. I got mine from one of the first batches available in the UK. Unlocked & unbranded.
Fortunately for me I have not had a single issue that others have described. My display is bright & vivid, the proximity sensor works perfectly, no INIT process lag, GPS is very fast. The list goes on.
The touchscreen I feel is excellent. If you have downloaded & played "What the Doodle" from the market you'd soon realise if you had a faulty touch unit.
My experience with other Android devices (HTC Hero) and other HTC devices (Kaiser, Alpine & Blueangel) teaches me that although each device may have same specs & almost the same hardware, each one, like humans, has character.
If this "Character" is something you are Ok with, e.g dodgy proximity sensor, then excellent. However as your describing something that is more than just "Character" i.e a dodgy touchscreen, I would get the DHD exchanged.
I think this issue has already been covered here (even the video you linked is made by the guy that posted that thread). The sensor quality is a fact of life. Ranting about it would make no difference whatsoever. You can either live with it or not. Your choice.
Ranting??? I am largely happy with my device (as, I imagine, the OP is). But I think if we have niggles we are perfectly at liberty to bounce these off other forum members to see if others are having the same experience, and we should be able to do so without being made to feel like a nuisance.
I didn't understand the "ranting" post either.
We all choose to visit here and contribute what we can. No-one should feel like their being a nuisance.
I wanted to understand my device and would like to see if what I experienced is also experienced by others so I can consider getting a replacement from HTC. now the issue seems to be cut and dried because every dhd seems be be exhibiting the same behavior. but I am keeping my dhd because, as I said as the very first thing in my first post, I am quite happy with my device.
apparently xda is filled with all very helpful people. thanks to all of you.
and BTW thanks to tkolev for pointing out the thread. the issue might be fixable through a software update is surely a home thing to know.
Sent from my Desire HD using XDA App
I must say that I'm very fussy with my electronics, yet I did not notice this.
If you're trying to draw on it, it might not be suitable. If you're doing all the normal stuff smartphones are used for, I doubt it'd be a problem. Maybe you need a Wacom tablet?
Mine does it too so I guess it's just normal for the touchscreen used in the DHD. Not much you can do but return it if you're not happy I feel your frustration though, there's always something that isn't quite up to my standards when it comes to high end electronics.
Just tested my DHD with Draw(er) (From the marked) and the lines are straight as Chuck Norris.
Bought the device two days ago from Tele2 Norway. Unlocked and unbraned.

[Q] Xperia Play touchscreen

Hey guys, i'm in the market for a new phone and I choose the xperia play, i will be purchasing it soon, but before then, i have a question about the touchscreen. How responsive is it compared to the ipod touch's touchscreen? The reason i say this is because i'm coming from an LG Voyager so besides my ipod touch, i dont have a lot of prior experiece with touchscreen devides and I want my experience to favorable and not something that's laggy and unresponsive and like the lg voyager's touchscreen can be. Thank you for the help you guys.
PS. For those of you saying that i should just go to the verizon store and try it for myself, i have indeed done this, but I didn't have enough time to form a good opinion about whether or not it was good.
The touch screen on the play is great, in fact I actually prefer it to my Itouch , honestly I wouldent worry about it feels great to me
Awesome! Thank you very much! Just the answer I was looking for, i was going to ask more questions, but there's nothing I can think of at the moment lol.
I have tried my friends' iPhones but I can't form a solid comparison with the Xperia Play in terms of touchscreen. Yeah, indeed, the iPhone's touchscreen is sensitive, but it could be a safe statement too that the Xperia Play has a very sensitive and responsive touchscreen. It's capacitive so it registers even the slightest touch possible and the UI response is very smooth, thanks to Gingerbread.
I haven't had any trouble with its touchscreen yet (being unresponsive or so) but c'mon dude, comparing it with the LG Voyager you say!?!? OMG what a MISMATCH! The Voyager is damn old and has a resistive touchscreen. That could be the reason why you're saying it's not that responsive. Resisitive touchscreens prefer to be pressed down for the action to be registered unlike capacitive ones that detect finger movement over the screen.
PS: There is big difference between resistive and capacitive touchscreens. You should read them HERE to avoid mismatch.
Just don't put the phone to a couch or pillow and try to use plays touchscreen. It's strange, it becomes unresponsive and weak, but it's OK on the table (you have to put more pressure on your fingers).
Onhand its great.
Sent from my Xperia PLAY R800i using XDA App
I have the play and it's awesome.
Sent from my R800i using XDA Premium App
narflynn619 said:
I have tried my friends' iPhones but I can't form a solid comparison with the Xperia Play in terms of touchscreen. Yeah, indeed, the iPhone's touchscreen is sensitive, but it could be a safe statement too that the Xperia Play has a very sensitive and responsive touchscreen. It's capacitive so it registers even the slightest touch possible and the UI response is very smooth, thanks to Gingerbread.
I haven't had any trouble with its touchscreen yet (being unresponsive or so) but c'mon dude, comparing it with the LG Voyager you say!?!? OMG what a MISMATCH! The Voyager is damn old and has a resistive touchscreen. That could be the reason why you're saying it's not that responsive. Resisitive touchscreens prefer to be pressed down for the action to be registered unlike capacitive ones that detect finger movement over the screen.
PS: There is big difference between resistive and capacitive touchscreens. You should read them HERE to avoid mismatch.
Click to expand...
Click to collapse
I understand the difference, i was just stating that i am coming from a voyager and resistive touchscreens suck.
not only is the screen nice and sensitive (and looks tasty too), it has 4 point multi touch (which i had no idea about until i ran a multi touch test) which is very accurate and makes apps like google maps so awesomely easy to use, it's amazing!!
i get a bit excited about the screen on the play as i came from the x10 with glitchy dual touch
It's probably the same as the iphone.. I don't notice a difference between them. But when I turned on my old htc touch... Omg lol never realized how hard I had to press the screen to get it to response before
Sent from my XPlay using XDA App.
jwk94 said:
Hey guys, i'm in the market for a new phone and I choose the xperia play, i will be purchasing it soon, but before then, i have a question about the touchscreen. How responsive is it compared to the ipod touch's touchscreen? The reason i say this is because i'm coming from an LG Voyager so besides my ipod touch, i dont have a lot of prior experiece with touchscreen devides and I want my experience to favorable and not something that's laggy and unresponsive and like the lg voyager's touchscreen can be. Thank you for the help you guys.
PS. For those of you saying that i should just go to the verizon store and try it for myself, i have indeed done this, but I didn't have enough time to form a good opinion about whether or not it was good.
Click to expand...
Click to collapse
Coming from 3 years of using the iPhone, the Play is a HUGE improvement.
Multitouch upto two fingers is ok
But the screen goes mumbo jumbo when more than 2 fingers are used :S
Some serious touch issues have also been noted when the phones charging
Sent from my R800i using XDA Premium App
Thank you everyonee for the helpful responses, I can't wait to get my play!
I never found it unresponsive while charging or while setting it down anywhere. It's quite nice to use. Only downside I've found is it gets less accurate if you fingers get all sweaty.
I think Gingerbread really brings alot of smoothness and responsiveness to the overall touch screen experience on the play and I must say in comparison to other phones it's damn smooth. I've seen people with dual core phones be impressed with my Play considering the specs for it are now considered outdated.
ammarcool12 said:
Multitouch upto two fingers is ok
But the screen goes mumbo jumbo when more than 2 fingers are used :S
Some serious touch issues have also been noted when the phones charging
Sent from my R800i using XDA Premium App
Click to expand...
Click to collapse
I think you have a dodgy Play as mine isn't like that at all,

[Q] M8 Touchscreen Latency

Hi Guys,
Recently reverted back to Android from iOS. I have had low end and mid range Android devices for development purposes as well as a Windows Phone devices all the way through.
Since taking up the HTC M8 as my day to day device, I have been noticing issues (teeth grindingly frustrating issues) regarding touch screen accuracy and responsiveness.
A prime example of this is when using a browser (Any browser, on both GPE and Sense editions). When making a pinch to zoom gestures, my fingers can move almost half an inch apart before the actual zoom process begins. I have tested this on a Samsung GS4 and found this not to be the case on that device. I believe the root cause of this problem is also behind the poor accuracy when typing on *any* keyboard (i find myself re-writing words again and again despite the larger screen size, you'd expect larger on screen keys would equal less frequent miss stokes...). Again this is not the case on the GS4.
I have used a multitouch testing tool to gauge some measure of response time and touch latency. I have found when moving points at any rate of velocity they begin to lag quite substantially behind my finger. I don't know if this is part of the same problem.
I am wondering if anyone could shed light on whether this is an issue with display touch sensitivity settings, something which could be changed at the kernel level or a limitation with the hardware itself,
Is it also possible that the same algorithm used to detect and handle touch for devices with smaller screen real estate is still being used and that the distances and tolerances for touch and gesture recognition are acting proportionally to the screen size.
Hopefully this is something we can fix, it makes the device tiresome to type with and feel clunky and unresponsive.
The screen on this phone has a higher touch response then the iPhone
Sent from my HTC One_M8 using Tapatalk
Go in a store and check out another phone. If yours turns out to be defective (which should be the case), you should get it replaced
Sent from my iPod touch using Tapatalk
No issues with mine.it's better than iPhone5s I had. Which had some issues sensing touch on corners of display
Sent from my HTC One_M8 using xda app-developers app
sabianadmin said:
Hi Guys,
Recently reverted back to Android from iOS. I have had low end and mid range Android devices for development purposes as well as a Windows Phone devices all the way through.
Since taking up the HTC M8 as my day to day device, I have been noticing issues (teeth grindingly frustrating issues) regarding touch screen accuracy and responsiveness.
A prime example of this is when using a browser (Any browser, on both GPE and Sense editions). When making a pinch to zoom gestures, my fingers can move almost half an inch apart before the actual zoom process begins. I have tested this on a Samsung GS4 and found this not to be the case on that device. I believe the root cause of this problem is also behind the poor accuracy when typing on *any* keyboard (i find myself re-writing words again and again despite the larger screen size, you'd expect larger on screen keys would equal less frequent miss stokes...). Again this is not the case on the GS4.
I have used a multitouch testing tool to gauge some measure of response time and touch latency. I have found when moving points at any rate of velocity they begin to lag quite substantially behind my finger. I don't know if this is part of the same problem.
I am wondering if anyone could shed light on whether this is an issue with display touch sensitivity settings, something which could be changed at the kernel level or a limitation with the hardware itself,
Is it also possible that the same algorithm used to detect to handle touch for devices with smaller screen real estate is still being used and that the distances and tolerances for touch and gesture recognition are acting proportionally to the screen size.
Hopefully this is something we can fix, it makes the device tiresome to type with and feel clunky and unresponsive.
Click to expand...
Click to collapse
If you have just moved from the iPhone, then this is a slight orientation problem ... and actually the M8 is the nearest you can get in terms of responsiveness to an iPhone, thanks to the fastest screen response time on the market ... for keyboard, you need to deliberately slow your finger speed down for few days and then you get used to it ... Screen/phone size also play a part in your typing because your mind can remember sub-consciously how much finger movement to do for typing ..
All the above is assuming you were an avid typist for long time on an iPhone
v-b-n said:
If you have just moved from the iPhone, then this is a slight orientation problem ... and actually the M8 is the nearest you can get in terms of responsiveness to an iPhone, thanks to the fastest screen response time on the market ... for keyboard, you need to deliberately slow your finger speed down for few days and then you get used to it ... Screen/phone size also play a part in your typing because your mind can remember sub-consciously how much finger movement to do for typing ..
All the above is assuming you were an avid typist for long time on an iPhone
Click to expand...
Click to collapse
Thanks for all the replies, it is likely that its a transitional issue alright. But before i write it off as such, can anyone verify the issues regarding pinch to zoom? Just trying to figure out if it is a faulty device i have on my hands or not
I get the exactly the same issues. I really thought it was me .
However I had the HTC One M7 and had no issue whatsoever.
LG G2 also same no issues .But since getting
HTC One M8, the touch accuracy is well absolutely useless. I am forever correcting what I type.
I don't think its the hardware but something to do with the Algorithm..No matter what keyboard you use or calibration you do. doesn't make any difference
I am hoping that lollipop cures this problem..
My touch accuracy has always been great. I'd say that if yours isn't it's a hardware problem.
Lostatsea23 said:
The screen on this phone has a higher touch response then the iPhone
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
I tried the m8 and iphone 6 instore and compared them. The m8 screen is very sensitive, requiring minimal touch to be activated. This may be why tests are showing that the m8 has a faster touch response. However, when dragging your finger along the screen, such as swiping launcher screens, the iphone is more responsive.
I then tested "show touches" on the m8, the touch lags behind my finger.

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