| Author |
Life Span of an LCD? |
*Jojo*
Joined: Oct 15, 2003
Posts: > 500
PM |
I know that they are battery dependent in a ... way. But does it ever happen that the LCD give-in FIRST . . . before the mobile phone itself  Also, does the use of the 'stylus' (more often) on PDA fones have ANY negative effect on the LCD itself Thanks !
[addsig] |
|
|
michka
Joined: May 17, 2004
Posts: > 500
From: Brussels-Belgium
PM |
For mobile phones I don't know. For PC LCD displays, what gives in first is usually the backlight.
As for the pressure sensitive displays, they are usually built accordingly. So, unless you apply really too much pressure or use a very sharp object, they should survive quite a lot of tapping.
Pedestrian: don't run, my car is faster anyway. |
*Jojo*
Joined: Oct 15, 2003
Posts: > 500
PM |
@michka - Thanks for the reply dude . . . I guess celfones and notebooks/pcs are 'interrelated' in a . . . way.
Any more . . . ideas mates celfone this time . . .
[addsig] |
dr_thug
Joined: Nov 11, 2004
Posts: > 500
From: India
PM |
http://www.esato.com/board/viewtopic.php?topic=127826#post1730748
@JN,please dont remind me of that...btw, the computer repair guy will be here today to take a look.hope its some loose connection.
|
michka
Joined: May 17, 2004
Posts: > 500
From: Brussels-Belgium
PM |
Well I can't really tell for the cellphone LCD, I guess the backlight is not the same as in PC LCD's (fluorescent tubes) for obvious power consumption and space problems. LEDs maybe?
But I am pretty sure a phone LCD cannot be dismantled, so it won't make any difference which part fails first.
Pedestrian: don't run, my car is faster anyway. |
*Jojo*
Joined: Oct 15, 2003
Posts: > 500
PM |
@michka - Yup, I quite agree with that . . .
@dr - Yup, 'hope just some loose connection . . . or else . . . 
[addsig] |
michka
Joined: May 17, 2004
Posts: > 500
From: Brussels-Belgium
PM |
dr_thug: isn't there some sort of mechanical switch that normally switches the backlight off when closing the PC? And it would sometimes stay stuck?
Or else it might be a problem with the connection (either the connectors or the flat ribbon) joining the screen and keyboard parts of the laptop.
By the way, most laptop displays use fluorescent tubes. They are now starting to build led driven displays, but they are quite difficult to make because leds are point light sources and the surface of the display is quite large. It is therefore difficult to have a uniform lighting due to the very small depth, unless you use a large amount of leds.
_________________
Pedestrian: don't run, my car is faster anyway.
[ This Message was edited by: michka on 2006-08-16 02:45 ] |
dr_thug
Joined: Nov 11, 2004
Posts: > 500
From: India
PM |
@michka,the little rubber switch is working fine...it along with switching off the backlight also switches off the light which shows the status of the touchpad.so the problem seems to be as u said at the connector or the ribbon.
In my telephonic conversation,the compter guy said that the loose connction must has come as a result of frequent closing and opening of the laptop as it affects the hinges where these wires pass...but i rarely close it(close it once in 2-3months)
|
michka
Joined: May 17, 2004
Posts: > 500
From: Brussels-Belgium
PM |
Another reason might be bad connection because the contacts get slightly corroded. This may happen quite easily because there is not much power going through these contacts (high electrical power would produce small arcs which would clean the contacts). And it will happen more frequently in wet environments, because water vapour favorizes corrosion.
When my PC starts behaving erratically, the first thing I do is disconnect all connectors, remove all extension cards and memory in it and then reconnect. And 99 times out of 100 it solves the problem.
_________________
Pedestrian: don't run, my car is faster anyway.
[ This Message was edited by: michka on 2006-08-16 03:18 ] |
|
|
Posted: 2006-08-16 02:06
