Related
A capacitive touchscreen panel is coated with a material, typically indium tin oxide that conducts a continuous electrical current across the sensor. The sensor therefore exhibits a precisely controlled field of stored electrons in both the horizontal and vertical axes - it achieves capacitance. The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance. When the sensor's 'normal' capacitance field (its reference state) is altered by another capacitance field, i.e., someone's finger, electronic circuits located at each corner of the panel measure the resultant 'distortion' in the sine wave characteristics of the reference field and sends the information about the event to the controller for mathematical processing. Capacitive sensors can either be touched with a bare finger or with a conductive device being held by a bare hand. Capacitive touchscreens are not affected by outside elements and have high clarity. The Apple iPhone is an example of a product that uses capacitance touchscreen technology: the iPhone is further capable of multi-touch sensing.
Capacitive sensors work based on proximity, and do not have to be directly touched to be triggered. In most cases, direct contact to a conductive metal surface does not occur and the conductive sensor is separated from the user's body by an insulating glass or plastic layer. Devices with capacitive buttons intended to be touched by a finger can often be triggered by quickly waving the palm of the hand close to the surface without touching.
The HTC/T-Mobile G1/Dream is also equipped with a capacitive touch screen.
is the Xperia X1 also equipped with Capacitive touch screen? because i noticed its not as sensitive as iphone
Without opening up the phone, there are several ways to find out if a phone uses a capacitive or resistive (i.e. pressure-sensitive) screen.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
2. Can the screen be operated by a non-conductive object i.e. a toothpick?
If so, it's probably not a capacitive screen.
3. Does the device come with a stylus/"plectrum" and does it require screen calibration?
If it does, it's probably not a capacitive screen.
No mass-market WM device to date has a capacitive touchscreen, including the X1. The first post of this thread will help you understand why: http://discuss.pocketnow.com/showthread.php?threadid=23389
Nocturnal310 said:
is the Xperia X1 also equipped with Capacitive touch screen? because i noticed its not as sensitive as iphone
Click to expand...
Click to collapse
My Xperia is more sensitive than an iPhone. Granted I did some tweaking, but still.
No, Xperia is like the rest of our phones has resistive screen. It can be very sensitive, but stylus will be your main indication. I have LG Prada that has capacitive screen and LG Viewty that has a resistive one.
enigma1nz said:
No, Xperia is like the rest of our phones has resistive screen. It can be very sensitive, but stylus will be your main indication. I have LG Prada that has capacitive screen and LG Viewty that has a resistive one.
Click to expand...
Click to collapse
No? So, you have spied on me using my phone and know that it is not more sensitive? Pffft...
iphone rockz!
im sorry but no phone is as sensitive as an iphone!
jesse_g said:
im sorry but no phone is as sensitive as an iphone!
Click to expand...
Click to collapse
You should be sorry, because you are wrong. Do your research better and come back to apologize.
sorry but i have the same idea...... i think iPhone is more sensitive than xperia
Do capacititve screens have a separation issue like some of the HTC resistive screens have?
Where the layers of a resistive screen including the digitizer start to separate causing a rectangular shape in the center that looks like oil on water.
Has happened to me and many others where the screen eventually has a complete failure.
I do know that the capacitive screens on the iPhone are prone to breakage due to the fact that it has a glass surface.
The resistive screen of the Diamond is less prone to breakage because it has a plastic type film on the surface.
Btw, my screen is pretty sensitive, whether using the stylus or touch.
You can tweak your resistiv screen by allign screen.
If you dont press the screen and move little circles between the arrow you can make screen more sensitiv
Sorry for my english cause i am german
Black93300ZX said:
A capacitive touchscreen panel is coated with a material, typically indium tin oxide that conducts a continuous electrical current across the sensor. The sensor therefore exhibits a precisely controlled field of stored electrons in both the horizontal and vertical axes - it achieves capacitance. The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance. When the sensor's 'normal' capacitance field (its reference state) is altered by another capacitance field, i.e., someone's finger, electronic circuits located at each corner of the panel measure the resultant 'distortion' in the sine wave characteristics of the reference field and sends the information about the event to the controller for mathematical processing. Capacitive sensors can either be touched with a bare finger or with a conductive device being held by a bare hand. Capacitive touchscreens are not affected by outside elements and have high clarity. The Apple iPhone is an example of a product that uses capacitance touchscreen technology: the iPhone is further capable of multi-touch sensing.
Capacitive sensors work based on proximity, and do not have to be directly touched to be triggered. In most cases, direct contact to a conductive metal surface does not occur and the conductive sensor is separated from the user's body by an insulating glass or plastic layer. Devices with capacitive buttons intended to be touched by a finger can often be triggered by quickly waving the palm of the hand close to the surface without touching.
The HTC/T-Mobile G1/Dream is also equipped with a capacitive touch screen.
Click to expand...
Click to collapse
interesting... I didn't know that
jesse_g said:
im sorry but no phone is as sensitive as an iphone!
Click to expand...
Click to collapse
darren shan said:
sorry but i have the same idea...... i think iPhone is more sensitive than xperia
Click to expand...
Click to collapse
Hey guys there is a cab called iTouch for blackstone and it tweaks the resistance to ultra-sensitive, works like a charm. http://forum.xda-developers.com/showthread.php?t=469865 , try it.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
Not necessarily true. The Nexus One has a capacitive screen and also has the dots...
Sent from my Nexus One using XDA App
Multi-touch
So.. I guess I'm going to show my ignorance, but here is my question.
There are several posts on several sites talking about how you can't do multi-touch unless you have a capacitive screen. Then I go to Pandawill and look at the G10. It says it's a resistive screen but there are videos of it doing pinch-to-zoom.
Can someone help me understand how multi-touch relates to the screen type?
Sorry if i'm too much of a n00b
Sorry to add fuel to fire but a capacitive screen will always be more sensitive (speaking purely about the physics of it) than a resisitive screen.
Why?
Capacitive screens rely on charge and comparative charge of two bodies. In some instances, capacitive screens can work without the finger actually touching the screen.
Resistive screens rely on a minute deflection from contact to connect two conductive layers. You can touch a resistive screen lightly enough to not result in a UI interaction. Resisitve screens can be tweaked to work at a very high sensitivity but still not as sensitive as a capacitive screen.
Go ahead, compare two phones with opposing screen tech side by side. I thought nothing could be as responsive as my Topaz till I bought a Nexus, then Desire (which have other issues btw! )
Sorry but thats the blunt science behind it. Bear in mind the perception of responsiveness to touch can very well depend on the quality/smoothness of the software written or the user interface.
Source:
HTC Touch Diamond 2 vs. HTC Desire
Source 2:
My university degree.
Sorry for the double post but to answer your question,
Yes resistive screens can be used to provide multi touch support. Where this support isnt built into the drivers for the digitizer, its a lot harder. Bear in mind most older phones were launched before the mainstream advent of multi touch. Thus no drivers...only brilliant minds at XDA
However, using a resisitve touch screen to provide multi touch has some serious drawbacks, mainly on smaller screens.
I hate to break it to you but the reason behind this is actually the size of your "pinch" fingers with respect to screen size.
Multi touch on a small resistive screen cause deflection at multiple points on the digitizer but due to the reliance on deflection, the software will inevitably struggle to understand what sort of multitouch gesture you're trying to do! Your fingers with relation to screen size are simply too big!
When you have a bigger screen or a well designed digitizer + software, it can determine positions of multiple points much more accurately, thus allowing multi-touch.
eulalie said:
So.. I guess I'm going to show my ignorance, but here is my question.
There are several posts on several sites talking about how you can't do multi-touch unless you have a capacitive screen. Then I go to Pandawill and look at the G10. It says it's a resistive screen but there are videos of it doing pinch-to-zoom.
Can someone help me understand how multi-touch relates to the screen type?
Sorry if i'm too much of a n00b
Click to expand...
Click to collapse
ozy944 said:
Sorry for the double post but to answer your question,
Yes resistive screens can be used to provide multi touch support. Where this support isnt built into the drivers for the digitizer, its a lot harder. Bear in mind most older phones were launched before the mainstream advent of multi touch. Thus no drivers...only brilliant minds at XDA
However, using a resisitve touch screen to provide multi touch has some serious drawbacks, mainly on smaller screens.
I hate to break it to you but the reason behind this is actually the size of your "pinch" fingers with respect to screen size.
Multi touch on a small resistive screen cause deflection at multiple points on the digitizer but due to the reliance on deflection, the software will inevitably struggle to understand what sort of multitouch gesture you're trying to do! Your fingers with relation to screen size are simply too big!
When you have a bigger screen or a well designed digitizer + software, it can determine positions of multiple points much more accurately, thus allowing multi-touch.
Click to expand...
Click to collapse
Right.. I get that pinch is tougher on a small screen thats less sensative. The question was posed because there isn't a, what i consider to be cheap (in the 250$ or less range), 10 in capacative android tablet on the market.
If i venture in the the flatpad/apad/epad world... is it the case that it is impossible for that type of screen to do multi-touch? From your response I'm hearing that it IS possible to do multi-touch on a flatpad.. given that there are drivers supporting it. I'd love to have a capacative screen but from what i've seen online, they're going to be twice the cost or more.
eulalie said:
Right.. I get that pinch is tougher on a small screen thats less sensative. The question was posed because there isn't a, what i consider to be cheap (in the 250$ or less range), 10 in capacative android tablet on the market.
If i venture in the the flatpad/apad/epad world... is it the case that it is impossible for that type of screen to do multi-touch? From your response I'm hearing that it IS possible to do multi-touch on a flatpad.. given that there are drivers supporting it. I'd love to have a capacative screen but from what i've seen online, they're going to be twice the cost or more.
Click to expand...
Click to collapse
A dilemma huh? To be brutally honest, most budget oriented tablets are simply that: budget oriented. A lot of them (im trying not to generalize) and Ive tried a fair few are poorly implemented tablets and more trouble than they are worth. Slow, laggy, bad battery life. You'll have enough issues to simply forget the lack of multi touch.
If I was after a tablet, hard as it may be, Id wait till some big players launch a proper device...that'll lead to better adoption and less half baked tablets that are more tech demo than retail product.
Bear in mind the lack of android market access on almost all of these tablets. Due to their generic nature, dev work is also a no-go. Everybody and their friends and family have a device out with a costomised, baked os that its not even funny!
Id check out the galaxy tablet from samsung or wait for it to make some waves and bring forth better implemented copycat products
yodafone said:
Without opening up the phone, there are several ways to find out if a phone uses a capacitive or resistive (i.e. pressure-sensitive) screen.
1. Look at the screen off-angle in bright light. You may be able to see a grid of dots that looks something like this and extends over the entire screen surface:
. . .
. . .
. . .
If you can, it's probably not a capacitive screen.
2. Can the screen be operated by a non-conductive object i.e. a toothpick?
If so, it's probably not a capacitive screen.
3. Does the device come with a stylus/"plectrum" and does it require screen calibration?
If it does, it's probably not a capacitive screen.
No mass-market WM device to date has a capacitive touchscreen, including the X1. The first post of this thread will help you understand why: http://discuss.pocketnow.com/showthread.php?threadid=23389
Click to expand...
Click to collapse
The HTC HD2 is a capacitive touch-screen phone, was mass marketed on WM and has the dots (not horizontally but diagonally). Dont talk about it if you dont know about it.
http://crave.cnet.co.uk/mobiles/htc-hd2-first-windows-mobile-with-capacitive-touchscreen-49303837/
Does anybody notice how the screen sometimes looks three dimensional with debth?
Changing the angle of view sometimes lends a hollographic effect to high contrast images in that you feel you can look around corners! It is kind of cool, but can be distracting. Once my brain locks on to this feature (usually by accidently shifting the phone angle) I can't seem to subconsciously 'let go' of the effect without looking away for a few seconds!
I know this is related to how the display is built using layers; and I wonder if this 'feature' could be used to build a true three dimensional UI in the future...
what drug did you just take???????
I notice it. If there's a dust particle on the screen protector and I tilt the phone a bit, I'll see that particle reflected in the layers underneath. Looks a bit odd, but nothing unexpected.
are you high?
I noticed in the gallery app, if you're looking at an image folder and lightly tilt it left or right, it gives a 3D effect. But that's the only place I've seen it.
I think I know what the OP is talking about.
If you look at the side of the phone in angle away from you, it seems like the AMOLED screen is not flush against the outer glass... there seems to be a few mm separating the outer glass and the inner AMOLED screen.
http://www.youtube.com/watch?v=7SImOIMcMlk
op is not crazy, i have seen what he is talking about
Haha! Funny you should mention that, because I noticed it in the boot-up screen with the Nexus One logo.
No I am not crazy - at least not officially diagnosed as so ;-}
Cool video from Saint: not that radical, but what a concept! This 'feature' is not related as it is not linked to the tilt sensors.
It is subtle, I admit, but I can get others to see the effect once I point it out. Seems most prominant on the blues and reds against a dark or primary background - mostly on small dense images such as icons.
hey guys
ive noticed that a thew of you are having issues with the touchscreen,particularly when running recent roms
now ive been having a look and have come up with an idea to resolve this problem,first we have to understand the screen,our lovely HD2 has a multi touch TFT capacitive touchscreen, 65K colors 480 x 800 pixels, 4.3 inches WVGA
now about multi touch capacitive touch screen from wiki as bellow:
Multi-touch has been implemented in several different ways, depending on the size and type of interface. Both touchtables and touch walls project an image through acrylic or glass, and then back-light the image with LEDs. When a finger or an object touches the surface, causing the light to scatter, the reflection is caught with sensors or cameras that send the data to software which dictates response to the touch, depending on the type of reflection measured. Touch surfaces can also be made pressure-sensitive by the addition of a pressure-sensitive coating that flexes differently depending on how firmly it is pressed, altering the reflection.[2] Handheld technologies use a panel that carries an electrical charge. When a finger touches the screen, the touch disrupts the panel's electrical field. The disruption is registered and sent to the software, which then initiates a response to the gesture.
if you get what that means then we'll move on.Now then most of the builds weve been using are designed for either AMOLED/LCD capacitive touchscreen at16M colors so in basic terms when we touch our screens it sends a signal to the software saying youve touched only the software thinks were all using 16M capacitive touchscreen when in actual fact were only using 65k capacitive touchscreens thus eventually causing lack of responce,so whats the solution i hear you cry,well we have to look at our beloved friend the evo 4G wich has the same screen TFT capacitive touchscreen, 65K colors so we have use the files/script/value or whatever devs use to controll the display and touchscreen from the 4g and use them in HD2 android builds this way we shouldnt be able to wear out our touchscreens in android builds,something for Devs to do and we already have Evo ports,probably explains why no one or heard of has had this problem when running Evo builds.Does that Make sence
The LCD screen and the digitizer are 2 separate components. The touchscreen itself has nothing to do with colors.
Seriously when can we just stop the bullshiting about stuff YOU clearly dont understand ?
The last few weeks there has been a huge spike in stupid topics from ppl trying to convince other ppl to also be stupid.
shuntje said:
Seriously when can we just stop the bullshiting about stuff clearly dont understand ?
The last few weeks there has been a huge spike in stupid topics from ppl trying to convince other ppl to also be stupid.
Click to expand...
Click to collapse
Best. Post. Ever.
IphoneKiller125 said:
hey guys
ive noticed that a thew of you are having issues with the touchscreen,particularly when running recent roms
now ive been having a look and have come up with an idea to resolve this problem,first we have to understand the screen,our lovely HD2 has a multi touch TFT capacitive touchscreen, 65K colors 480 x 800 pixels, 4.3 inches WVGA
now about multi touch capacitive touch screen from wiki as bellow:
Multi-touch has been implemented in several different ways, depending on the size and type of interface. Both touchtables and touch walls project an image through acrylic or glass, and then back-light the image with LEDs. When a finger or an object touches the surface, causing the light to scatter, the reflection is caught with sensors or cameras that send the data to software which dictates response to the touch, depending on the type of reflection measured. Touch surfaces can also be made pressure-sensitive by the addition of a pressure-sensitive coating that flexes differently depending on how firmly it is pressed, altering the reflection.[2] Handheld technologies use a panel that carries an electrical charge. When a finger touches the screen, the touch disrupts the panel's electrical field. The disruption is registered and sent to the software, which then initiates a response to the gesture.
if you get what that means then we'll move on.Now then most of the builds weve been using are designed for either AMOLED/LCD capacitive touchscreen at16M colors so in basic terms when we touch our screens it sends a signal to the software saying youve touched only the software thinks were all using 16M capacitive touchscreen when in actual fact were only using 65k capacitive touchscreens thus eventually causing lack of responce,so whats the solution i hear you cry,well we have to look at our beloved friend the evo 4G wich has the same screen TFT capacitive touchscreen, 65K colors so we have use the files/script/value or whatever devs use to controll the display and touchscreen from the 4g and use them in HD2 android builds this way we shouldnt be able to wear out our touchscreens in android builds,something for Devs to do and we already have Evo ports,probably explains why no one or heard of has had this problem when running Evo builds.Does that Make sence
Click to expand...
Click to collapse
lol worst research ever
I'm wondering what was your reasearch methode ?
Becouse all you found was information about the screen and nothing about the actual module for the toutch screen.
shuntje said:
I'm wondering what was your reasearch methode ?
Becouse all you found was information about the screen and nothing about the actual module for the toutch screen.
Click to expand...
Click to collapse
Well i assumed you guys knew that the HD2 has an LCM module wich is shown here
Uploaded with ImageShack.us
it combines the digitizer,backlight,Lcd so it conects to the main board from the same port for easer installation.Now the point im trying to get across is that weve been using builds that use AMOLED,AMOLED displays have an integrated touch function.AMOLED screens that htc use are made by Samsung wich has placed a touch-sensor (on-cell) over the display. The thickness of the touch sensor is very thin and this allows the screen to provide better images and to have great visibility even in direct sunlight and are very responsive to touch,Now becouse we havnt got these screens the builds,in particular with desire builds it is making our screens work overtime and this can create dead spots or areas of the screen that do not respond accurately to touch wich can be caused by a conflict in the software/firmware or it could be that the LCM causes problems in the software wich then makes it unresponsive http://www.htcphones.net/htc-hd2-problems-with-touchscreen/ or then again it could be this http://wmpoweruser.com/strange-htc-hd2-touch-screen-behaviour-is-your-device-affected/ there are several possibillty,unfortunently each phone is unique
I have trouble deciding whether you are a troll or a retard.
Neither of those possibilities are very attractive though.
The only problem HD2 has with multitouch is that It cant handle two inputs in the same vertical line. you will see if you test it with Multitouch visibility test. Also in air hockey 2 player mode you will see the same effect. If the two points are in the same vertical point it will jump.
Builds and kernels are indeed different... a build for an amoled phone can work with no problem on our hd2
It doesn't matter; we have our own special panel and ts drivers in the kernel. (board-htcleo-ts.c and board-htcleo-panel.c)
Damm Straight Best Post Ever!
This is simply THE most hilarious post I've read on here!!
I've never seen a post with such bull****. Clearly the OP hasn't got a clue what he's talking about.
I am lost for words
Now that we have a THANKS button, we also need a BULL**** button, everyone with a brain who reads this thread would be frantically clicking away on it!!
..........
IphoneKiller125 said:
Well i assumed you guys knew that the HD2 has an LCM module wich is shown here
Uploaded with ImageShack.us
it combines the digitizer,backlight,Lcd so it conects to the main board from the same port for easer installation.Now the point im trying to get across is that weve been using builds that use AMOLED,AMOLED displays have an integrated touch function.AMOLED screens that htc use are made by Samsung wich has placed a touch-sensor (on-cell) over the display. The thickness of the touch sensor is very thin and this allows the screen to provide better images and to have great visibility even in direct sunlight and are very responsive to touch,Now becouse we havnt got these screens the builds,in particular with desire builds it is making our screens work overtime and this can create dead spots or areas of the screen that do not respond accurately to touch wich can be caused by a conflict in the software/firmware or it could be that the LCM causes problems in the software wich then makes it unresponsive http://www.htcphones.net/htc-hd2-problems-with-touchscreen/ or then again it could be this http://wmpoweruser.com/strange-htc-hd2-touch-screen-behaviour-is-your-device-affected/ there are several possibillty,unfortunently each phone is unique
Click to expand...
Click to collapse
Dude ok break down of how i undertand the phone works between kernel and hardware
The kernel accesses a chip with a unified and commonly accepted standard of IO. Then the hardware specific chip (the Toutch screen controller or what not) makes this into readeble data and vise versa. This way there is NO WAY IN HELL it can break the actual hardware. If your screen is breaking down bad luck i had a HD2 with a defect TS in the first week. A mate of mine had one within the first ****ing day. Its random stop feeding yourself with bull**** and go back to the tinfoil hat forums.
deffo has the lol factor
shuntje said:
Dude ok break down of how i undertand the phone works between kernal and hardware
The kernal accesses a chip with a unified and commonly accepted standard of IO. Then the hardware specific chip (the Toutch screen controller or what not) makes this into readeble data and vise versa. This way there is NO WAY IN HELL it can break the actual hardware. If your screen is breaking down bad luck i had a HD2 with a defect TS in the first week. A mate of mine had one within the first ****ing day. Its random stop feeding yourself with bull**** and go back to the tinfoil hat forums.
Click to expand...
Click to collapse
Actually since the kernel (please, not kernal) interacts with the hardware directly it can damage it permanently. For example, supply too much voltage to the cpu and you fry it, use the touchscreen with incorrect calibration settings for extended periods of time and you can also damage it. However, there are no cases of the Leo Android TS driver breaking touchscreens.
Where are the naked pics? Someone said there were naked pics in this thread.
OHHHHH another "whine, Android, whine, messed up, whine, my touchscreen, whine" thread.
...dissappointingly clicks the back button
I have some cellophane I stole from a cigarette packet. I was wondering, as the size is similar to my HD2, are they compatible models? I was thinking of replacing the touchscreen with it.
Sorry to take this thread in a new direction but it seemed the appropriate place to ask.
harpss1ngh said:
Now that we have a THANKS button, we also need a BULL**** button...
Click to expand...
Click to collapse
Made my day
guys would it be possible to take off the screens in each tablet and install the nexus 10 screen on the note 10.1 ?? Wouldnt that give us the resolution capabilities for it , and at the same time replace the battery and get the NFC ??
cubandevil said:
guys would it be possible to take off the screens in each tablet and install the nexus 10 screen on the note 10.1 ?? Wouldnt that give us the resolution capabilities for it , and at the same time replace the battery and get the NFC ??
Click to expand...
Click to collapse
The Note has an inductive display to support the S-Pen and the N10's display is capacitive and the pen won't work. So, pick one.
so the screens are not separated like a digitizer and the actual screen ?? and sorry for these question im ignorant when it comes to things like these.
Pretty sure the Exynos 4 that's inside the Note 10.1 doesn't support the Nexus 10's screen resolution. So it won't work as far as I know.
The screen wont work for mainly two reasons the wavecom chip wont work with a capacative screen and it does not support higher resolution then what we have on the note. That is why not has that resolution
The processor does not support that high resolution.
These are main two reason apart from many other. Its like fitting a trucks body on a cars chassies
cubandevil said:
so the screens are not separated like a digitizer and the actual screen ?? and sorry for these question im ignorant when it comes to things like these.
Click to expand...
Click to collapse
Here's the difference between the two displays. An inductive display picks up an electro-magnetic signal from the pen where a capacitive display only can respond to physical contact. Based on the manufacturing complexity I'd guess the Note's display cost Samsung more than the FHD+ display on the N10.
BarryH_GEG said:
Here's the difference between the two displays. An inductive display picks up an electro-magnetic signal from the pen where a capacitive display only can respond to physical contact. Based on the manufacturing complexity I'd guess the Note's display cost Samsung more than the FHD+ display on the N10.
Click to expand...
Click to collapse
We have both capacitive and inductive digitizers as we have dual digitizers one from atmel and the other is wacom
Sent from my X10S using xda app-developers app
hoss_n2 said:
We have both capacitive and inductive digitizers as we have dual digitizers one from atmel and the other is wacom
Sent from my X10S using xda app-developers app
Click to expand...
Click to collapse
Thank you guys , just using my imagination
I didnt know that the screen resolution mattered to the cpu , but then again a computer monitor will go as far as the graphics in a pc allows it ..
Yes the same concept works over here, it depends on how much the mali gpu allows it go to. Secondly as the resolution increase the processing power requirement also increases.
You can have insane resolutions but how pratical are they since most of the apps are developed for a 5inch screen.
This was posted in the N10 forum and sort of describes the challenges of inking on a capacitive display by someone who tried to solve them. To me, either inking works well or why bother. Using a kluge might get the job done but would be very frustrating. I'd rather live with the 720P display (which is still better in contrast and brightness than the N10's).
transceiver said:
I made the app Writepad Stylus to do precisely that, on the Asus Transformer 101. Palm rejection on a capacitive screen, without weird zoning boxes. It worked pretty well and I made a lot of money from it. But there are a ton of issues with that algorithm that I ran into when I got the Asus Transformer Prime, which ultimately made me give up on the app:
Bad capacitive screen sensitivity. The Transformer Prime and the Galaxy Tab 10.1 both have awful sensitivity settings, so the writing comes out looking like an 8 year old's scribble. It doesn't register all the input points. It doesn't start recording points until AFTER you move the stylus a certain distance. Ugh. There's an app that sorta fixes that called TouchscreenTune, but it requires root, and the settings for that are really hard to calibrate. Even after messing with that, it's still not as good as on the Xoom or the original Transformer.
Touch screen can't handle straight lines. If you try to draw a straight line horizontally or vertically, it comes out straight. If you try to draw a diagonal line, it comes out wiggly. This is also particular to certain tablet screens. Who knows whether a particular tablet will have good touch screen or crappy one? No reviewer tests for that kind of thing. You have to go to the store to try it out.
Your hand will accidentally hit the notification or navigation buttons, taking focus away from the app, or accidentally going back to the homescreen. As far as I know, this can happen even with the S-pen. Asus has a "lock navigation bar" feature on their tablets, which is nice. There's no way to hide the navigation bar or disable it while something is going on in app (unless you root your tablet).
Anyway, if someone wants to test these things on the Nexus 10 and report back, I'd be grateful since I can't find these in stores yet. Just try to write as small as you can with a capacitive stylus, and try to slowly draw straight diagonal lines.
Click to expand...
Click to collapse
BarryH_GEG said:
Here's the difference between the two displays. An inductive display picks up an electro-magnetic signal from the pen where a capacitive display only can respond to physical contact. Based on the manufacturing complexity I'd guess the Note's display cost Samsung more than the FHD+ display on the N10.
Click to expand...
Click to collapse
You have posted a comparison between a RESISTIVE display and a capacitive/inductive one. The top picture is resistive which is old technology now, it's what the old smart phones and pocket PC's used and had a thin layer of plasticky material for sensing pressure. The note 10.1 uses both capacitive (for fingers) and inductive (for the pen).....and the nexus 10 just uses capacitive, not the screen in the 1st pic in your diagram. As far as I know, no screens use resistive tech anymore.
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In cases where screens have become damaged or unresponsive, there are several ways to crop out the non-working portion as indicated here: https://android.stackexchange.com/questions/57267/resize-screen-for-dead-touch-zone
My question is, as someone who wants S8 specs and features but finds looking at the curved edges deeply unpleasant, is there a similar way to crop the S8 screen to just the flat portion of glass?
hack.causality said:
In cases where screens have become damaged or unresponsive, there are several ways to crop out the non-working portion as indicated here: https://android.stackexchange.com/questions/57267/resize-screen-for-dead-touch-zone
My question is, as someone who wants S8 specs and features but finds looking at the curved edges deeply unpleasant, is there a similar way to crop the S8 screen to just the flat portion of glass?
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A hackish way to accomplish this would be to use Tasker to display a black overlay-blocking scene over each edge... and maybe adjust dpi a little.
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RuggedHunter said:
A hackish way to accomplish this would be to use Tasker to display a black overlay-blocking scene over each edge... and maybe adjust dpi a little.
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Interesting, I didn't know Tasker could do something like that. Could it be used with a partially-transparent overlay to alter the color balance in a specific area of the screen? I have a Shield K1 with a purple-shifted area on the screen that could potentially fix, if Tasker can do that.
Yeah, covering the edges would be simple.
You'd have to really tweak the colors in order to fix a section of screen....even then I'm not sure it wouldn't interfere with touch input in that area. Interesting idea.
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Easy. Two pieces of black electrical tape should do the job nicely.