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From: Jeff Liebermann on 21 Jun 2010 12:47 On Mon, 21 Jun 2010 09:04:24 -0700, DevilsPGD <Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote: >In message <ld0v169o149s2t1vq88p4meeqgaq15s28b(a)4ax.com> Jeff Liebermann ><jeffl(a)cruzio.com> was claimed to have wrote: > >>A transreflective LCD display, which reflects much of the heat, would >>have been soooooo nice. > >You've never actually used a transreflective colour LCD either? Not on a computah. I've seen them on outdoor wide screen LCD TV screens. Unfortunately, I only saw them at a Best Buy store, which is indoors. I've also seen small demo displays for cell phones and TV's with transreflective displays, again indoors. However, I've never seen one outdoors. Sigh. There's a domain and web pile for everything: <http://outdoorhdtv.com> >They're not necessarily bad in bright sun or factory bright light >conditions, but they're not fantastic the rest of the time. Oh-oh. >However, the fatal flat is that they use sidelighting rather than >backlighting, so especially on larger screens where an effective >sidelight isn't possible, you won't end up with a fantastic screen. Any >attempt at a backlight just makes the screen look washed out and >pathetic. How large would you want to go? The ultra thin HDTV's with LED edge lighting seems bright enough (indoors) at the Best Buy and Costco store. However, I wasn't in the market for one and didn't pay much attention. I didn't think they looked much different from the CCFL backlit LCD panels. What did I miss? My personal favorite display was a laptop with a detachable LCD display. The back lighting could be removed so that the display could be placed on an overhead projector for presentations. It could also be fitted with a reflective screen for outdoor use. Of course, a back lit CCFL lamp arrangement for indoor use. The big problem was that the frame around the LCD panel needed to be fairly large, to accommodate the needed circuitry. There was also about 0.5" unusable area around the edge for contact area. I forgot who made those see-through LCD displays, but I thought they would soon be commonplace. I was wrong. -- Jeff Liebermann jeffl(a)cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558
From: John Navas on 21 Jun 2010 13:03 On Mon, 21 Jun 2010 09:04:24 -0700, in <482v16tbfl77l0km00eejj4sb2ses86pn0(a)4ax.com>, DevilsPGD <Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote: >In message <ld0v169o149s2t1vq88p4meeqgaq15s28b(a)4ax.com> Jeff Liebermann ><jeffl(a)cruzio.com> was claimed to have wrote: > >>A transreflective LCD display, which reflects much of the heat, would >>have been soooooo nice. > >You've never actually used a transreflective colour LCD either? Both. >They're not necessarily bad in bright sun or factory bright light >conditions, but they're not fantastic the rest of the time. > >However, the fatal flat is that they use sidelighting rather than >backlighting, so especially on larger screens where an effective >sidelight isn't possible, you won't end up with a fantastic screen. Any >attempt at a backlight just makes the screen look washed out and >pathetic. Works quite well now up to smartphone size, and I've seen larger engineering samples with similar performance. -- Best regards, John If the iPhone and iPad are really so impressive, then why do iFans keep making excuses for them?
From: John Navas on 21 Jun 2010 13:04 On Mon, 21 Jun 2010 09:04:24 -0700, in <t32v169pga4ppktd23d45nf8blu1rjg8a4(a)4ax.com>, DevilsPGD <Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote: >In message <k6su165uvmca1me36k98ba4qfh0fn2cdap(a)4ax.com> John Navas ><jncl1(a)navasgroup.com> was claimed to have wrote: > >>True, but the Kindle display is easier to read in the most common >>conditions, and works quite nicely with an Itty Bitty Book Light, >>whereas nothing will help the iPad out in the sun (e.g., at a park >>or the beach). > >I've used mine at a park on the edge of a beach already once and it >worked fine. I wouldn't take it on a beach though, at least not until I >can decide what is likely worse for the device, sand or water. > >The brightness is reasonably adequate, brighter than most LCD panels, >the trick is that instead of looking at it straight-on, tilt the device >5 degrees or so. That's too funny. Squinting probably helps too. ;) -- Best regards, John If the iPhone and iPad are really so impressive, then why do iFans keep making excuses for them?
From: DevilsPGD on 21 Jun 2010 15:42 In message <ms6v16db2k2a2cokvam1uggcsv93hvak69(a)4ax.com> John Navas <jncl1(a)navasgroup.com> was claimed to have wrote: >On Mon, 21 Jun 2010 09:04:24 -0700, in ><t32v169pga4ppktd23d45nf8blu1rjg8a4(a)4ax.com>, DevilsPGD ><Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote: > >>In message <k6su165uvmca1me36k98ba4qfh0fn2cdap(a)4ax.com> John Navas >><jncl1(a)navasgroup.com> was claimed to have wrote: >> >>>True, but the Kindle display is easier to read in the most common >>>conditions, and works quite nicely with an Itty Bitty Book Light, >>>whereas nothing will help the iPad out in the sun (e.g., at a park >>>or the beach). >> >>I've used mine at a park on the edge of a beach already once and it >>worked fine. I wouldn't take it on a beach though, at least not until I >>can decide what is likely worse for the device, sand or water. >> >>The brightness is reasonably adequate, brighter than most LCD panels, >>the trick is that instead of looking at it straight-on, tilt the device >>5 degrees or so. > >That's too funny. Squinting probably helps too. ;) Nope actually, it doesn't. Good try though.
From: DevilsPGD on 21 Jun 2010 16:58
In message <qt4v165dba828dg7ce2lsrbutbf28inrgf(a)4ax.com> Jeff Liebermann <jeffl(a)cruzio.com> was claimed to have wrote: >On Mon, 21 Jun 2010 09:04:24 -0700, DevilsPGD ><Still-Just-A-Rat-In-A-Cage(a)crazyhat.net> wrote: > >>However, the fatal flat is that they use sidelighting rather than >>backlighting, so especially on larger screens where an effective >>sidelight isn't possible, you won't end up with a fantastic screen. Any >>attempt at a backlight just makes the screen look washed out and >>pathetic. > >How large would you want to go? The ultra thin HDTV's with LED edge >lighting seems bright enough (indoors) at the Best Buy and Costco >store. However, I wasn't in the market for one and didn't pay much >attention. I didn't think they looked much different from the CCFL >backlit LCD panels. What did I miss? Oh, yeah... Those tend to be a bit thicker to allow the sidelight to illuminate the entire screen from in front of the screen. What is ultra-thin for a TV or even a monitor might be too think for a iPad style tablet formfactor. As I understand it, it's much harder to do it in an ultra-thin portable formfactor if the screen gets wider than an inch or two, unless you don't mind the center of the screen being darker. Technology might have advanced around this problem, but from what little I can tell, we're not there (yet) |