Searching \ for '[EE] Bistable Displays' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=bistable+displays
Search entire site for: 'Bistable Displays'.

Exact match. Not showing close matches.
PICList Thread
'[EE] Bistable Displays'
2007\10\09@081909 by Alan B. Pearce

face picon face
Interesting looking Bistable Cholesteric Displays.

http://www.varitronix.uk.com/?pid=16

I'm thinking of the pushbuttons someone posted here a fair while back that
had LCD displays on top. These look as though the smallest ones could be
used for the same purpose.

2007\10\09@154253 by David VanHorn

picon face
On 10/9/07, Alan B. Pearce <spam_OUTA.B.PearceTakeThisOuTspamrl.ac.uk> wrote:
> Interesting looking Bistable Cholesteric Displays.
>
> http://www.varitronix.uk.com/?pid=16
>
> I'm thinking of the pushbuttons someone posted here a fair while back that
> had LCD displays on top. These look as though the smallest ones could be
> used for the same purpose.


The NKK Smartswitches that were posted do work nicely, but you have to
refresh them rather frequently.  If you had more than a couple, you'd
almost want to dedicate a controller to maintaining them.

2007\10\09@164224 by Thomas C. Sefranek

face picon face

-----Original Message-----
From: .....piclist-bouncesKILLspamspam@spam@mit.edu [piclist-bouncesspamKILLspammit.edu] On Behalf Of
David VanHorn
Sent: Tuesday, October 09, 2007 3:43 PM
To: Microcontroller discussion list - Public.
Subject: Re: [EE] Bistable Displays

>The NKK Smartswitches that were posted do work nicely, but you have to
>refresh them rather frequently.  If you had more than a couple, you'd
>almost want to dedicate a controller to maintaining them.
--
I run 6 NKK Smartswitches from 1 PIC18F4585.
No problems running the CAN bus and other stuff.
Tom

 *
 |  __O    Thomas C. Sefranek  .....WA1RHPKILLspamspam.....ARRL.NET
 |_-\<,_   Amateur Radio Operator: WA1RHP
 (*)/ (*)  Bicycle mobile on 145.41MHz PL74.4

ARRL Instructor, Technical Specialist, VE Contact.
hamradio.cmcorp.com/inventory/Inventory.html
http://www.harvardrepeater.org

2007\10\10@100423 by sws11

picon face
The Varitronix ChLCD's are licensed from Kent Displays Inc.  
(http://www.kentdisplays.com/)
In a big project, you are probably better off talking to Kent directly.

Kent is also very careful about the Patent stuff, they had a long legal
fight with Advanced display systems and won.

For a while the voltage requirements for CH-LCD were higher, requiring
~30 to 45V drive voltage.
This used to require larger footprint of drive electronics.

They may have improved chemistries and viscosity of the LC mixtures by
now, which would lower activation.

Also since they don't use standard LCD drive electronics, they are
harder to implement in some cases.
They are zero power after written.  However, they do work very well, and
have lots of advantages for sunlight applications.
The switch application is almost perfect for them if the drive
electronics can get smaller.  They don't have a great path to full color
that's why you don't see them in cell phones/pda.  The path to full
color is tough - they usually need three layer displays at this point.
Red is also difficult for them to make.

S. Smith

David VanHorn wrote:
{Quote hidden}

2007\10\10@110219 by Alan B. Pearce

face picon face
>The Varitronix ChLCD's are licensed from Kent Displays Inc.  
> (http://www.kentdisplays.com/)
>In a big project, you are probably better off talking to Kent directly.

Hmm, 1/4 & 1/8 VGA with SPI Interface ...

starts dreaming ...

2007\10\10@112316 by Chris Emerson

flavicon
face
On Tue, Oct 09, 2007 at 01:12:52PM +0100, Alan B. Pearce wrote:
> Interesting looking Bistable Cholesteric Displays.
>
> http://www.varitronix.uk.com/?pid=16

Anyone know how much these cost, OOI, particularly in very low volumes
(hobby) if available?  I couldn't see any indication on the site.

Cheers,

Chris

2007\10\16@184851 by alan smith

picon face
Is your NKK code public?  I was getting some samples of these and thought I might play with them some.

"Thomas C. Sefranek" <tcsspamspam_OUTcmcorp.com> wrote:  
{Original Message removed}

2007\10\17@104331 by Thomas C. Sefranek

face picon face
I could be convinced to share the good parts of the LCD driver.
You DO understand I write in assembly, right?

 *
 |  __O    Thomas C. Sefranek  @spam@WA1RHPKILLspamspamARRL.NET
 |_-\<,_   Amateur Radio Operator: WA1RHP
 (*)/ (*)  Bicycle mobile on 145.41MHz PL74.4

ARRL Instructor, Technical Specialist, VE Contact.
hamradio.cmcorp.com/inventory/Inventory.html
http://www.harvardrepeater.org

{Original Message removed}

2007\10\19@112754 by alan smith

picon face
Yep, assembly is perfectly fine.

"Thomas C. Sefranek" <KILLspamtcsKILLspamspamcmcorp.com> wrote:  I could be convinced to share the good parts of the LCD driver.
You DO understand I write in assembly, right?

*
| __O Thomas C. Sefranek RemoveMEWA1RHPTakeThisOuTspamARRL.NET
|_-\<,_ Amateur Radio Operator: WA1RHP
(*)/ (*) Bicycle mobile on 145.41MHz PL74.4

ARRL Instructor, Technical Specialist, VE Contact.
hamradio.cmcorp.com/inventory/Inventory.html
http://www.harvardrepeater.org

{Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2007 , 2008 only
- Today
- New search...