Electro-luminiscent display wanted

[Eeyore]

Tomislav wrote:

The 'blue' is actually quite wide spectrum unlike leds.

I've seen it happily filtered to orange ( on one of my products in fact ). I'm
sure you could use a yellow filter too.

Graham

Filtering is nice idea, if some standard blue display from audio
component or VCR can be filtered to orange or yellow that would be very
good solution.

Just try it. I can assure you it works. We used the same display on 2 products. One
was filtered orange, the other had a blue filter which made it 'ultra-blue'.

I think that Panasonic uses yellow displays on their
VCR's but I failed to find one that is broken because they are just made
too good.

Thanks for the idea.

You're welcome.

Graham

 

[Tomislav]

The 'blue' is actually quite wide spectrum unlike leds.

I've seen it happily filtered to orange ( on one of my products in fact ). I'm
sure you could use a yellow filter too.

Graham

Filtering is nice idea, if some standard blue display from audio
component or VCR can be filtered to orange or yellow that would be very
good solution. I think that Panasonic uses yellow displays on their
VCR's but I failed to find one that is broken because they are just made
too good.

Thanks for the idea.

Tomislav

 

[Tomislav]

Don't listen to all those LCD backlight guys )

For EL displays you can use Planar. They make really nice, tough (as in
industrial tough monochrome and "color" EL displays. Monochromes are nice
yellow, probably exactly what you're looking for.

But beware, they are quite expensive...

I see what you mean. I just visited website and it looks quite powerful
and professional. Thanks for the advice, if I ( hopefully ) find
something in my price range those displays would be the best solution -
maybe even too good for project I am planing.

Thanks,

Tomislav

 

[Eeyore]

Tomislav wrote:

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

Where are you. That may be a factor.

Graham

 

[Eeyore]

Tomislav wrote:

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

Display should be yellow color, or if possible orange and dot-matrix
type would be perfect.

Can someone answer me where to find such display ?

I apologize if I am too picky, but blue displays just do not meet the
aesthetical needs of the project.

The 'blue' is actually quite wide spectrum unlike leds.

I've seen it happily filtered to orange ( on one of my products in fact ). I'm
sure you could use a yellow filter too.

Graham

 

[Sergey Kubushin]

Tomislav <net.artist@yahoo.com> wrote:

Don't listen to all those LCD backlight guys )

For EL displays you can use Planar. They make really nice, tough (as in
industrial tough monochrome and "color" EL displays. Monochromes are nice
yellow, probably exactly what you're looking for.

But beware, they are quite expensive...

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

Display should be yellow color, or if possible orange and dot-matrix
type would be perfect.

Can someone answer me where to find such display ?

I apologize if I am too picky, but blue displays just do not meet the
aesthetical needs of the project.

thanks,

Tomislav

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[Lostgallifreyan]

Meant maker or supplier of display panels.
Also try Optrex, and Microtip.

 

[Lostgallifreyan]

Tomislav <net.artist@yahoo.com> wrote in news:epraur$n1u$1@sunce.iskon.hr:

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

Display should be yellow color, or if possible orange and dot-matrix
type would be perfect.

Can someone answer me where to find such display ?

I apologize if I am too picky, but blue displays just do not meet the
aesthetical needs of the project.

That reminds me of a question I asked a few months back. I still want an
answer if I can find one, and it might be your answer too. LED
backlighting, but in the low profile panels that are usually only
acheivable with EL backlights.

My need is for a green/yellow LED backlight in a 240x64 graphic panel. It
has to fit in a very tight space designed for the EL type.

Powertip is one maker of supplies, but I don't think they make one as I
want it, but they might have what you need.

 

[Tomislav]

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

Display should be yellow color, or if possible orange and dot-matrix
type would be perfect.

Can someone answer me where to find such display ?

I apologize if I am too picky, but blue displays just do not meet the
aesthetical needs of the project.

thanks,

Tomislav

 

[Henry Kiefer]

"Lostgallifreyan" <no-one@nowhere.net> schrieb im Newsbeitrag news:Xns98CA5CD2B1A2zoodlewurdle@140.99.99.130...
| Meant maker or supplier of display panels.
| Also try Optrex, and Microtip.

Why don't use an EL?

- Henry

--
www.ehydra.dyndns.info

 

[Lostgallifreyan]

"Henry Kiefer" <otc_friend@gmx.net> wrote in
news:45ccd330$1$18847$9b4e6d93@newsspool4.arcor-online.net:

Why don't use an EL?

Didn't like the colour. (Was a pasty wan sort of washy blue thing). Or
the relatively short life. A synthesizer is often on for very long
periods, and the EL is almost always the first part needing
replacement. It's very awkward getting inside the innards of an SY99
synthesizer, it's a giant, and you have to do an almost total disassembly
to reach it. If I could get a strong green/yellow LED type panel in there
I'd solve all the problems at once, and visibility would be better too,
because the contrast is vastly better.

 

[Henry Kiefer]

"Lostgallifreyan" <no-one@nowhere.net> schrieb im Newsbeitrag news:Xns98D2CCADF94E7zoodlewurdle@140.99.99.130...
| "Henry Kiefer" <otc_friend@gmx.net> wrote in
| news:45ccd330$1$18847$9b4e6d93@newsspool4.arcor-online.net:
|
| > Why don't use an EL?
| >
|
| Didn't like the colour. (Was a pasty wan sort of washy blue thing). Or
| the relatively short life. A synthesizer is often on for very long
| periods, and the EL is almost always the first part needing
| replacement. It's very awkward getting inside the innards of an SY99
| synthesizer, it's a giant, and you have to do an almost total disassembly
| to reach it. If I could get a strong green/yellow LED type panel in there
| I'd solve all the problems at once, and visibility would be better too,
| because the contrast is vastly better.

An EL lasts about 5000 h. Typical for LED is 10x times.
There are much different colors available for EL.
I don't think you can get a LED-sheet with the thickness of typical EL.
Try to use a polycarbonate or PMMA flat sheet sand wiped and longered on one side to a bigger LED source.

If you can specifiy the outline I will have a look.

regards -
Henry

--
www.ehydra.dyndns.info

 

[Lostgallifreyan]

"Henry Kiefer" <otc_friend@gmx.net> wrote in
news:45ccda50$0$27619$9b4e6d93@newsspool2.arcor-online.net:

Try to use a polycarbonate or PMMA flat sheet sand wiped and longered
on one side to a bigger LED source.

If you can specifiy the outline I will have a look.

Longered? You mean like extended to take LED input from one end, like a
light-pipe? Sanded on one flat surface to divert light out through the
panel?

It might work, but I bet it will be awkward, and never look quite right.
The panel is 240x64 px graphic. Modifying an EL type to take something like
that will mean there's no easy way to get even illumination. If it could be
done, I think it would be a standard part by now, and even worth patenting.

I was hoping that some kind of development in LED's or luminous polymers
might have produced something like the standard green/yellow LED in the
low-profile display panels. I look at times, to see what's new, but I've
not seen anything yet.

The type that closest fits is RS part number 195-5709 ( http://rswww.com )
There's a datasheet there too. That's the LED type, but both types are
there. The prices are scary! >

 

[Henry Kiefer]

"Lostgallifreyan" <no-one@nowhere.net> schrieb im Newsbeitrag news:Xns98D2D80FE3FD4zoodlewurdle@140.99.99.130...
| "Henry Kiefer" <otc_friend@gmx.net> wrote in
| news:45ccda50$0$27619$9b4e6d93@newsspool2.arcor-online.net:
|
| > Try to use a polycarbonate or PMMA flat sheet sand wiped and longered
| > on one side to a bigger LED source.
| >
| > If you can specifiy the outline I will have a look.
| >
|
| Longered? You mean like extended to take LED input from one end, like a
| light-pipe? Sanded on one flat surface to divert light out through the
| panel?

Yes. Sorry, English is not my first language.

|
| It might work, but I bet it will be awkward, and never look quite right.

I don't know for sure. Maybe the light diffusion is a problem on large panels.

| The panel is 240x64 px graphic. Modifying an EL type to take something like
| that will mean there's no easy way to get even illumination. If it could be
| done, I think it would be a standard part by now, and even worth patenting.

The better ELs all have good light linearity. That is not the problem, only if it is much larger.

|
| I was hoping that some kind of development in LED's or luminous polymers
| might have produced something like the standard green/yellow LED in the
| low-profile display panels. I look at times, to see what's new, but I've
| not seen anything yet.

I don't know of one at the moment.

|
| The type that closest fits is RS part number 195-5709 ( http://rswww.com )
| There's a datasheet there too. That's the LED type, but both types are
| there. The prices are scary! >

Oh hefty price. Just looked for my coffee cup!
So your problem is the price only!??

Send me a pm with:
- estimated life time of your end product
- number of displays needed (per anno or such)
- what's the space requirements
- controller i/o needed
- other importan details

And I will see if I can fit it.

regards -

- Henry

--
www.ehydra.dyndns.info

 

[Lostgallifreyan]

"Henry Kiefer" <otc_friend@gmx.net> wrote in
news:45cd0ab3$1$5720$9b4e6d93@newsspool3.arcor-online.net:

Oh hefty price. Just looked for my coffee cup!
So your problem is the price only!??

No. There is that too, but my first base was to see if there was a panel
that fitted my wish for one.

Send me a pm with:
- estimated life time of your end product
- number of displays needed (per anno or such)
- what's the space requirements
- controller i/o needed
- other importan details

And I will see if I can fit it.

Thankyou, but I'm only after one, for a personal repair. Was just looking
casually from time to time. I can't buy anything right now anyway, just
spent Ł1000+ on laser diodes and a load of optics, will be several weeks
before I next have money to spend. I just like to think ahead if I can. I
like my SY99, and some time hope to make more use of it, and a new nice-
looking display will help, if I can get it.

 

[Henry Kiefer]

"Lostgallifreyan" <no-one@nowhere.net> schrieb im Newsbeitrag news:Xns98D36524A81Czoodlewurdle@140.99.99.130...
| "Henry Kiefer" <otc_friend@gmx.net> wrote in
| news:45cd0ab3$1$5720$9b4e6d93@newsspool3.arcor-online.net:
|
| > Oh hefty price. Just looked for my coffee cup!
| > So your problem is the price only!??
| >
|
| No. There is that too, but my first base was to see if there was a panel
| that fitted my wish for one.

Just wait for money and buy the RS LED-version display. Where is the problem?

|
| > Send me a pm with:
| > - estimated life time of your end product
| > - number of displays needed (per anno or such)
| > - what's the space requirements
| > - controller i/o needed
| > - other importan details
| >
| > And I will see if I can fit it.
| >
|
| Thankyou, but I'm only after one, for a personal repair. Was just looking
| casually from time to time. I can't buy anything right now anyway, just
| spent Ł1000+ on laser diodes and a load of optics, will be several weeks
| before I next have money to spend. I just like to think ahead if I can. I
| like my SY99, and some time hope to make more use of it, and a new nice-
| looking display will help, if I can get it.

Sorry, I thought it is a development of a almost complete device.

Once I killed a 25mW laser diode. Shit.

- Henry

--
www.ehydra.dyndns.info

 

[Lostgallifreyan]

"Henry Kiefer" <otc_friend@gmx.net> wrote in
news:45cd1960$2$18841$9b4e6d93@newsspool4.arcor-online.net:

Once I killed a 25mW laser diode. Shit.

And don't they die so easily? >

Mercifully, they are cheaper now. For a while I had to deal with 80 mW
diodes at Ł50 each. Finding the new (and undeclared) extreme vulnerability
to death by retroreflection was no fun at all. Put me off for a long time.
I got a nice deal on some newer diodes at a price that makes risks and
losses acceptable, so I'm off again.

Re the LED display, it wouldn't fit. I did get one anyway, built a wood box
for it, fitted a 25 pin DSUB connector on the SY99 case back, and wired it
into the circuit, but it is a grossly inelegant method. Either I find an
LED panel that fits the space for the EL lit type, or I fit the EL type.
The SY99 is totally unforgiving about available space.

Maybe I'll get lucky. The world would have a LOT of use for an LED backlit
display that was as thin as the EL lit type. Someone out there might be
making them. If so, I just hope they put out some kind of beacon I can see
when I look for it.

 

[Eeyore]

Tomislav wrote:

Hello,

can anyone recommend manufacturer or supplier of electro - luminiscent
displays ?

What country are you in ?

Graham

 

[Henry Kiefer]

"Lostgallifreyan" <no-one@nowhere.net> schrieb im Newsbeitrag news:Xns98D3DC4D9F79zoodlewurdle@140.99.99.130...
| "Henry Kiefer" <otc_friend@gmx.net> wrote in
| news:45cd1960$2$18841$9b4e6d93@newsspool4.arcor-online.net:
|
| > Once I killed a 25mW laser diode. Shit.
| >
|
| And don't they die so easily? >
|
| Mercifully, they are cheaper now. For a while I had to deal with 80 mW
| diodes at Ł50 each. Finding the new (and undeclared) extreme vulnerability
| to death by retroreflection was no fun at all. Put me off for a long time.
| I got a nice deal on some newer diodes at a price that makes risks and
| losses acceptable, so I'm off again.
|
| Re the LED display, it wouldn't fit. I did get one anyway, built a wood box
| for it, fitted a 25 pin DSUB connector on the SY99 case back, and wired it
| into the circuit, but it is a grossly inelegant method. Either I find an
| LED panel that fits the space for the EL lit type, or I fit the EL type.
| The SY99 is totally unforgiving about available space.
|
| Maybe I'll get lucky. The world would have a LOT of use for an LED backlit
| display that was as thin as the EL lit type. Someone out there might be
| making them. If so, I just hope they put out some kind of beacon I can see
| when I look for it.

I used the laser diode out of a death opto memory drive. That is 10 years back.

There are two main failure mechanism:
1. overcurrent
2. elctrostatic discharge

A good suggestion is to directly solder a JFET across. The little guy will short the leads if the diode is pulled out or not on
voltage.

You need the T6963C controller exclusively?

LEDs need to be wired/bounded on the substrate - so there is a minimum thickness.

regards -
Henry


--
www.ehydra.dyndns.info

 

[Lostgallifreyan]

"Henry Kiefer" <otc_friend@gmx.net> wrote in
news:45ce1eb7$1$5723$9b4e6d93@newsspool3.arcor-online.net:

I used the laser diode out of a death opto memory drive. That is 10
years back.

There are two main failure mechanism:
1. overcurrent
2. elctrostatic discharge

A good suggestion is to directly solder a JFET across. The little guy
will short the leads if the diode is pulled out or not on voltage.

Nice. I'll look into that idea.

You need the T6963C controller exclusively?

Yes. I need a direct replacement for the original. I don't mind having to
re-route the odd wire (I did so on my boxed version), but I have to connect
to an existing circuit. I only want a compatible LED backlit display that
will fit where the EL lit one is now. Construction in the SY99 absolutely
prevents a thicker panel being used. Even the thin one fits with a SMALL
fraction of a millimetre to spare.

LEDs need to be wired/bounded on the substrate - so there is a minimum
thickness.

Exactly. This is why I can't figure out why obdurate convention stops the
panels being made thinner, unless it be to do with space needed for a
diffuse light spread.