Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.electronics.design > #481063

Re: About LEDs and LCDs

Show all headers | View raw

On Wednesday, October 11, 2017 at 4:40:28 PM UTC+2, Jan Panteltje wrote:
> On a sunny day (Wed, 11 Oct 2017 10:58:19 +1100) it happened Clifford Heath
> <no.spam@please.net> wrote in <y8dDB.829$US1.674@fx15.iad>:
> 
> >On 11/10/17 02:08, Jan Panteltje wrote:
> >> On a sunny day (Tue, 10 Oct 2017 08:06:38 -0400) it happened bitrex
> >> <bitrex@de.lete.earthlink.net> wrote in <tJ2DB.15074$Ov1.863@fx30.iad>:
> >> 
> >>> This type of module (with one, two, or four lines) plus EL backlight
> >>> underneath seems to have been the illuminated display of choice in a lot
> >>> of pro audio equipment, synthesizers, etc. in the 1980s and early 1990s.
> >>> On the plus side EL material degrades gradually; I'd estimate it has a
> >>> "time to half brightness" of around 15 years run a couple hours a day.
> >>>
> >>> On the downside EL material isn't that bright to begin with, and it
> >>> seems usually the switching transistor or electrolytic caps in the
> >>> blocking oscillator used to generate the HV go kaput before the
> >>> backlight does.
> >> 
> >> There is actually an other argument against LCD panels,
> >> and that is polarization.
> >> Try looking at one through a pair of Polaroid glasses, and then tilt you head.
> >
> >I recall stepping into the lift lobby of a high-rise,
> >and wondering why they had no directory to tell me what
> >floor to go to. Then I took off my sunnies, and realized
> >that the black rectangles on the wall weren't architectural
> >features, but large TV screens mounted vertically, so my
> >sunnies completely blocked the light from the screen.
> >Strange experience.It made me think that screens should be
> >made in various polarisations to suit the application.
> 
> I have several pairs of sunglasses... only one polarized.
> 
> Wonder what happens when driving those Teslas with LCD dashboard..
> Anybody driving Teslas here???

Are they OLED?
Beacause, AFAIK, OLED are not polarized...

Bye Jack

Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

About LEDs and LCDs Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-09 17:58 +0000
  Re: About LEDs and LCDs John Larkin <jjlarkin@highland_snip_technology.com> - 2017-10-09 11:20 -0700
    Re: About LEDs and LCDs Klaus Kragelund <klauskvik@hotmail.com> - 2017-10-09 11:42 -0700
      Re: About LEDs and LCDs Jan Panteltje <pNaonStpealmtje@yahoo.com> - 2017-10-09 19:24 +0000
        Re: About LEDs and LCDs klaus.kragelund@gmail.com - 2017-10-09 13:13 -0700
    Re: About LEDs and LCDs Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-09 19:08 +0000
  Re: About LEDs and LCDs bitrex <bitrex@de.lete.earthlink.net> - 2017-10-09 16:28 -0400
    Re: About LEDs and LCDs Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-10 08:16 +0000
    Re: About LEDs and LCDs Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-10 08:16 +0000
      Re: About LEDs and LCDs bitrex <bitrex@de.lete.earthlink.net> - 2017-10-10 08:06 -0400
        Re: About LEDs and LCDs Jan Panteltje <pNaonStpealmtje@yahoo.com> - 2017-10-10 15:08 +0000
          Re: About LEDs and LCDs Jan Panteltje <pNaonStpealmtje@yahoo.com> - 2017-10-10 15:13 +0000
            Re: About LEDs and LCDs Allan Herriman <allanherriman@hotmail.com> - 2017-10-10 23:21 +0000
          Re: About LEDs and LCDs Clifford Heath <no.spam@please.net> - 2017-10-11 10:58 +1100
            Re: About LEDs and LCDs Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-10-10 17:10 -0700
            Re: About LEDs and LCDs Jan Panteltje <pNaonStpealmtje@yahoo.com> - 2017-10-11 14:40 +0000
              Re: About LEDs and LCDs jack4747@gmail.com - 2017-10-11 07:45 -0700
                Re: About LEDs and LCDs Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-11 15:02 +0000
              Re: About LEDs and LCDs krw@notreal.com - 2017-10-11 21:03 -0400
                Re: About LEDs and LCDs Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-12 07:19 +0000
                Re: About LEDs and LCDs rickman <gnuarm@gmail.com> - 2017-10-12 13:07 -0400
                Re: About LEDs and LCDs Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-12 17:18 +0000
                Re: About LEDs and LCDs kevin93 <kevin@whitedigs.com> - 2017-10-12 19:30 -0700
                Re: About LEDs and LCDs krw@notreal.com - 2017-10-12 21:28 -0400
                Re: About LEDs and LCDs krw@notreal.com - 2017-10-12 20:55 -0400
              Re: About LEDs and LCDs Jasen Betts <jasen@xnet.co.nz> - 2017-10-12 04:22 +0000
          Re: About LEDs and LCDs Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-10-10 17:12 -0700
            Re: About LEDs and LCDs Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-10-11 14:41 +0000
  Re: About LEDs and LCDs Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-10-10 14:56 +0100
    Re: About LEDs and LCDs Jan Panteltje <pNaonStpealmtje@yahoo.com> - 2017-10-10 14:20 +0000

csiph-web