This is a dumb question but it seems to me the track pad should have a light. Just wondering I'd it is supposed to but I have a bad phone.Does the dinc have an lcd for the track pad?
Sent from my ADR6300 using XDA App
The track pad doesn't have a light. The notification light is next to the ear piece if that's what you were looking for.
Cole119 said:
The track pad doesn't have a light. The notification light is next to the ear piece if that's what you were looking for.
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Not sure what you mean. Just thought the track bitten should habr a lcd
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I understood what he meant...there isn't a light there...your notification light is at the top of the phone.
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my trackpad lights up black? No one else has this function?
But seriously, umm, there's no led or "lcd" in our trackpad. The optical trackpad was the replacement for the trackball (which on several devices..nexus one, g1, hero light up).
Ha ha. Maybe mine lights up black also. If so the problem is that the light is stuck on
marcmarshall said:
Ha ha. Maybe mine lights up black also. If so the problem is that the light is stuck on
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Seriously??
The trackpad uses light to devtect movement so obviously there couldn't be a light in it. Think of it as a eye
Sent from my Incredible using XDA App
I wear a lantern helmet to look at my track pad.
It uses an infrared light, can't see it to the human eye.
The droid incredible does have a light. Thats Why Its called An optical trackpad. Their is a small infrared light in the center of the track pad that reads your finger movements. Kind of like the red light you see on the bottom of some modern computer mouses. If you are in a dark room and start using the track ball; you tilt the phone at an angle you can see a red light inside. You can also see it as you are unlocking the locksceen.
mikeacela said:
The droid incredible does have a light. Thats Why Its called An optical trackpad. Their is a small infrared light in the center of the track pad that reads your finger movements. Kind of like the red light you see on the bottom of some modern computer mouses. If you are in a dark room and start using the track ball; you tilt the phone at an angle you can see a red light inside. You can also see it as you are unlocking the locksceen.
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The glass dome that makes the center of the optical pad is a very very dark red tint, the same that remote controls have covering their infrared leds.
mikeymop said:
The glass dome that makes the center of the optical pad is a very very dark red tint, the same that remote controls have covering their infrared leds.
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I know Its dark red. I said that their was an optical light inside. That is what tracks the movement. You cant see it when the phone is off. If you are in a dark room and look at the track pad while unlocking the phone, you can see it. You can also see it right after you use it, then it dims when not in use.
Concentrate harder
Infrared light is not visible to the human eye so maybe ur seeing a leak of light from the screen
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superchilpil said:
Infrared light is not visible to the human eye so maybe ur seeing a leak of light from the screen
That's a possiblility. But I'm still most posative that I see a light stemming from a small optical diode slightly below the trackpad.
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Sent from my ADR6300 using XDA App
What actually tracks the movement is a bad quality video camera and not the infrared light itself... The video lens reads the imperfection of you're skin and that's what makes it work if you took something really smooth against it you wouldn't see any reaction.... But yes there is infrared light because video lenses can see infrared light.
If I rub my eyes real heard for a minute I can see my track pad light and my wifi signals.
luvit said:
If I rub my eyes real heard for a minute I can see my track pad light and my wifi signals.
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Omg can u see ghosts too?? Lmao
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luvit said:
If I rub my eyes real heard for a minute I can see my track pad light and my wifi signals.
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WAOW ME TWO!
Sent from my Droid Incredible running SkyRaider 3.3 with King Kernel BFS #5.
For what it's worth, the infrared emitters in both the trackpad and proximity sensor are not perfect and do bleed into the visible red part of the spectrum. It's not beyond belief that somebody might be seeing this.
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Related
Hi XDA people!
Can anyone tell me what this second red led means?
It come's and go's..
Youtube vid: because i'm new here i cant post links or something..
If you search on HTC Desire HD Second led on earpeace, you will find it.
Radio:26 .03.02.15_M3
Rom: Phunky's PNK12
Nope, can't find the link...
Here it is: http://www.youtube.com/watch?v=YUSD8ITT6jA
It is earpeace. ... LOL
Maybe this ?
http://www.iwantonly.com/watch/481867/
Hope I can link it
That's the vid.
Never seen that LED before... From what I know its not meant to have a LED there.
Sent from my Desire HD using XDA App
Looks like an IR-LED which might be the proximity sensor.
Edit: Tested it and the CM3602 proximity sensor reacts within 2 cm above the IR-LED.
It looks like the proximity sensor. Get another camera phone and have a look at your DHD from the other camera while making a call. The IR led will switch on.
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olivierlee said:
It looks like the proximity sensor. Get another camera phone and have a look at your DHD from the other camera while making a call. The IR led will switch on.
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Ahh that'd make sense. Most digital cameras shift the colour of IR to visible spectrum. It's always fun showing this on laptops of unsuspecting people.
Sent from my Desire HD using XDA App
It's the proximity sensor. Cameras can pick up light into the IR wavelengths, which are not visible to the naked eye.
Point your camera at the end of your TV remote and press a couple of channel buttons... See it light up!
If you have some exposed photographic film, cut a couple of pieces just larger than your camera lens, turn one 90 degrees to the other and tape them over your camera lens. It won't pick up visible light, but it'll still catch Infra-red. Instant night-vision camera! Requires IR light to work, obviously
my prefered method to test tv remotes (or the batteries in it )
DN41
Haha thank you all!
DeathJester said:
It's the proximity sensor. Cameras can pick up light into the IR wavelengths, which are not visible to the naked eye.
Point your camera at the end of your TV remote and press a couple of channel buttons... See it light up!
If you have some exposed photographic film, cut a couple of pieces just larger than your camera lens, turn one 90 degrees to the other and tape them over your camera lens. It won't pick up visible light, but it'll still catch Infra-red. Instant night-vision camera! Requires IR light to work, obviously
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Thanks!
Learnt new thing.
Not about the exposed film but about the camera picking up the IR...
okay.. i looked through the manual when I got the phone and. it says theirs an led to the left of the speakers.. and I'm like no? lol its obviously to the right.. well I called someone on accident tonight and was looking at my phone and a little light lit up to the left of the speaker..anyone know what it's for? lol i is it only calls or what..
seems pretty useless =/ ide rather have a multi colored LED like the evo or evryother phone instead of two red leds lol
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I believe those are the camera & light sensors.
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Yeah dude those are totally you FFC (front facing camera) and the proximity sensor
Woah wtf CONFIRMED. Seriously just checked and although its very dim, there IS a light on the left corner of the speaker. Its a dark red. I called bull until I tested it. Here's how to see it:
Make a call in the darkest area possible ( the light is very dim) and look directly over the S in SAMSUNG. Interesting!
Edit: ok not an led you're right its the proximity sensor glowing red. If you cover it with your finger, the screen shuts off during a call
Epic-ly tapped from my Galaxy SII
Zoidpilot said:
Woah wtf CONFIRMED. Seriously just checked and although its very dim, there IS a light on the left corner of the speaker. Its a dark red. I called bull until I tested it. Here's how to see it:
Make a call in the darkest area possible ( the light is very dim) and look directly over the S in SAMSUNG. Interesting!
Edit: ok not an led you're right its the proximity sensor glowing red. If you cover it with your finger, the screen shuts off during a call
Epic-ly tapped from my Galaxy SII
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the sensors right next to it if look at it in a very well lite environment like outside on a sunny day. the light that glows red is to the right of the sensor
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The one that you can see is actually the proximity. The other is the ambient light sensor for the auto brightness. Get over it.
RainMotorsports said:
The one that you can see is actually the proximity. The other is the ambient light sensor for the auto brightness. Get over it.
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lol jeez, okay, thanks. lol
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RainMotorsports said:
The one that you can see is actually the proximity. The other is the ambient light sensor for the auto brightness. Get over it.
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Actually that's not totally correct. The hole directly to the right of the front-facing camera is a photodiode. When a call is in progress it acts as the proximity sensor, and all other times it is the ambient light sensor. To the right of that is an infrared LED - these cast a dim red glow that you can barely see in dim conditions, but if you were to look at it through the lens of a camcorder or digital camera (which are sensitive to infrared light), you will see that it lights up brightly - indicating a large amount of infrared. Skin is very reflective when it comes to infrared. When the infrared light coming out of the LED bounces off your skin and back to the photodiode, the system knows that the phone is against your head and turns the screen off.
Yeah somewhere in the back of my head i knew they likely worked in tandem. Obviously the proximity sensor needs a reciever to pickup the reflected wavelengths. Good info.
Hi, I've noticed that the lower buttons are lit up automatically by the light sensor but sometimes I can't see the buttons because I'm in low light, but it is not low enough to lit up the buttons.. does it happen also to you? It's not a problem since you memorize the buttons' functions very soon, just a matter of curiosity
Sent from my HTC One X using Tapatalk
Yep, I get this as well. What happens if you cover the light sensor?
I can't test it right now, but would hope the phone decides it's so dark that it needs to light the buttons up again.
preacher65 said:
Yep, I get this as well. What happens if you cover the light sensor?
I can't test it right now, but would hope the phone decides it's so dark that it needs to light the buttons up again.
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If you cover it with your hands, the buttons are lit up
Inviato dal mio HTC One X usando Tapatalk
Same Issue
Yes I have the same problem you almost have to be in a blacked out room before the buttons light up, there is not control over this which is madness as different people will have different needs in low light. I spoke to HTC support and they were about as helpful and a chocolate fire guard
I noticed the same. I hope they sort this out with a future firmware, i'm sure they can calibrate the sensor somewhat better
Are the back and home buttons supposed to light up like they do on the Incredible 4?
hytekjosh said:
Are the back and home buttons supposed to light up like they do on the Incredible 4?
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they light up on mine
I take it back. They lit up for the first time today when I went outside for my night run. They weren't lighting up inside in very low light conditions.
hytekjosh said:
I take it back. They lit up for the first time today when I went outside for my night run. They weren't lighting up inside in very low light conditions.
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Sane here. It may be due to how bright the screen is... I notice when I turn brightness down they turn on. Its a really bright vivid screen.
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Not sure why, but I am see a very small light shinning through the lower speaker grill on my HTC One (M8). It may be something behind the plastic cover that is reflecting the light since I don't see any type of LED light present (in the lower speaker area) from iFixit's teardown. Just wondering if any of you out there noticing the same thing. Thanks,
It is just a feature built into the phone, the light flashes when you get a missed calls, sms, emails and notifications.
tuannie said:
It is just a feature built into the phone, the light flashes when you get a missed calls, sms, emails and notifications.
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He said lower speaker grill, not upper. Could it be bleeding through from the screen backlight?
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Turned out it was a reflective flake stuck inside the speaker holes. Apparently dust can get into those small holes pretty easily...
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