Solved -- Nook Simple Touch screen not working

[The Real Bev]

Everything worked, but the screen was unresponsive. For once, I googled
before asking. The problem is crud between the screen and the frame.
Carefully drag the corner of a piece of ordinary paper under the edge
all the way around. Yeah, I was suspicious too, but it worked!

--
Cheers, Bev
Some people are like Slinkies... Not really good for
anything, but they still bring a smile to your face
when you push them down a flight of stairs.

 

[Michael Black]

On Sun, 2 Dec 2018, The Real Bev wrote:

Everything worked, but the screen was unresponsive. For once, I googled
before asking. The problem is crud between the screen and the frame.
Carefully drag the corner of a piece of ordinary paper under the edge all the
way around. Yeah, I was suspicious too, but it worked!

That's interesting, I wonder what other devices might suffer in the same
way?

I got a TomTom One GPS for ten dollars at a rummage sale, and the touch
aspect seemed flakey initially, but after charging and some use, all seems
fine. I got a PDA last year, and the touch screen (you needed a stylus)
seems unrepsonsive, I was wondering what might be involved, not that it
really matters, it was a few dollars and I have no real use for one.

Michael

 

[The Real Bev]

On 12/03/2018 11:34 AM, Michael Black wrote:

On Sun, 2 Dec 2018, The Real Bev wrote:

Everything worked, but the screen was unresponsive. For once, I googled
before asking. The problem is crud between the screen and the frame.
Carefully drag the corner of a piece of ordinary paper under the edge all the
way around. Yeah, I was suspicious too, but it worked!

That's interesting, I wonder what other devices might suffer in the same
way?

I got a TomTom One GPS for ten dollars at a rummage sale, and the touch
aspect seemed flakey initially, but after charging and some use, all seems
fine. I got a PDA last year, and the touch screen (you needed a stylus)
seems unrepsonsive, I was wondering what might be involved, not that it
really matters, it was a few dollars and I have no real use for one.

So haul it out and try it. Surely you didn't throw it away...

How do the edges know which spot on the screen was touched? Was the bit
of crud in ONE specific place that somehow allowed the whole thing to
work, like a ground connection or something? Is the whole thing like a
required ground connection and a bit of crud somehow breaks that
connection? The website guy used paper; what if I'd used a tiny bit of
toothpick sliver or wire or plastic?

I have an older Lenovo laptop with a touchscreen that I rarely use; it
must have a frame. If it ever goes wonky I'll try it.

--
Cheers, Bev
I'd rather not have neighbors. If I can see them, they're too close.
In fact, if I can see them through a rifle scope, they're too close.
-- Anonymous Coward

 

[Andy Burns]

The Real Bev wrote:

Everything worked, but the screen was unresponsive.  For once, I googled
before asking.  The problem is crud between the screen and the frame.

If nooks operate in the same way as kobo screens it's not actually
resistive or capacitive touch at all, it's breaking a grid of infrared
beams that criss-cross the screen.

 

[pfjw@aol.com]

On Friday, February 15, 2019 at 2:42:17 PM UTC-5, Andy Burns wrote:

If nooks operate in the same way as kobo screens it's not actually
resistive or capacitive touch at all, it's breaking a grid of infrared
beams that criss-cross the screen.

That would be quite expensive in terms of battery use. And Nooks are known for very long battery life. My wife will go for over a week, easily, reading several hours per day.

Peter Wieck
Melrose Park, PA

 

[pfjw@aol.com]

On Monday, December 3, 2018 at 3:07:15 PM UTC-5, The Real Bev wrote:

The website guy used paper; what if I'd used a tiny bit of
toothpick sliver or wire or plastic?

Paper (or very thin cardboard) will absorb oils and grease - with special reference to skin oils. A toothpick is to coarse, and silver, wire or plastic will not.

A common practice is to clean out variable capacitors with business cards - for just that reason.

Peter Wieck
Melrose Park, PA

 

[The Real Bev]

On 02/15/2019 12:26 PM, pfjw@aol.com wrote:

On Monday, December 3, 2018 at 3:07:15 PM UTC-5, The Real Bev wrote:
The website guy used paper; what if I'd used a tiny bit of
toothpick sliver or wire or plastic?

Paper (or very thin cardboard) will absorb oils and grease - with special reference to skin oils. A toothpick is to coarse, and silver, wire or plastic will not.

A common practice is to clean out variable capacitors with business cards - for just that reason.

Can you still get matchbooks? Similarly useful.


--
Cheers, Bev
I can picture a world without war, without hate. I can picture
us attacking that world, because they'd never expect it.

 

[Andy Burns]

pfjw@aol.com wrote:

Andy Burns wrote:

If nooks operate in the same way as kobo screens it's not actually
resistive or capacitive touch at all, it's breaking a grid of infrared
beams that criss-cross the screen.

That would be quite expensive in terms of battery use.

Apparently the nook simple touch does have an IR matrix

<https://en.wikipedia.org/wiki/Nook_Simple_Touch>

And Nooks are
known for very long battery life. My wife will go for over a week,
easily, reading several hours per day.

My kobo will too, it was apparently the last kobo model to use an IR
matrix (and I expect kindles last for ages too).