Register Guidelines E-Books Today's Posts Search

Go Back   MobileRead Forums > E-Book Readers > Which one should I buy?

Notices

Reply
 
Thread Tools Search this Thread
Old 08-09-2019, 04:53 PM   #1
rcentros
eReader Wrangler
rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.
 
rcentros's Avatar
 
Posts: 7,864
Karma: 51519919
Join Date: Mar 2013
Location: Boise, ID
Device: PB HD3, GL3, Tolino Vision 4, Voyage, Clara HD
Orange vs Yellow "comfort" LEDs

I was looking at the eBook Reader's video review of the Oasis 3 and realized the "comfort" light range matched my Tolino Vision 4 (more yellow than orange). I had recently seen video reviews for the Pocketbook Touch HD 3 and it seemed to have the same comfort light range as well.

The Oasis 3 review: https://www.youtube.com/watch?v=pfS6a2TreFo

But when I was able to test the Nook Glowlight 3 and, as the videos I've seen of Kobo eReaders show, these are a much darker orange. I'm just curious what causes this drastic difference? Different screen makers? It seems like it's an either/or thing. It's either the darker orange screens or the lighter (almost) yellow screens. Or is it just how each maker chooses to adjust or "mix" the LED light?

At any rate, just curious if anyone knows what the deal is here.
rcentros is offline   Reply With Quote
Old 08-09-2019, 06:17 PM   #2
j.p.s
Grand Sorcerer
j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.
 
Posts: 5,771
Karma: 103362673
Join Date: Apr 2011
Device: pb360
I would guess different LEDs to illuminate the screen.
j.p.s is offline   Reply With Quote
Advert
Old 08-10-2019, 04:20 AM   #3
ZodWallop
Gentleman and scholar
ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.
 
ZodWallop's Avatar
 
Posts: 11,474
Karma: 111164374
Join Date: Jun 2015
Location: Space City, Texas
Device: Clara BW; Nook ST w/Glowlight, Paperwhite 3
Quote:
Originally Posted by rcentros View Post
...I'm just curious what causes this drastic difference? Different screen makers? It seems like it's an either/or thing. It's either the darker orange screens or the lighter (almost) yellow screens. Or is it just how each maker chooses to adjust or "mix" the LED light?
I'm pretty sure all eInk devices get their screens from the same manufacturer, eInk. I believe the 6" Kindle, Clara and Glowlight 3 all use the same screen.

At any rate, eInk screens themselves don't produce light. The difference would be in the LEDs used. I haven't seen a Tolino or Oasis 3, but it sounds like they use yellow LEDs and the Clara and Glowlight 3 use orange.
ZodWallop is offline   Reply With Quote
Old 08-10-2019, 05:31 AM   #4
rcentros
eReader Wrangler
rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.
 
rcentros's Avatar
 
Posts: 7,864
Karma: 51519919
Join Date: Mar 2013
Location: Boise, ID
Device: PB HD3, GL3, Tolino Vision 4, Voyage, Clara HD
Quote:
Originally Posted by ZodWallop View Post
At any rate, eInk screens themselves don't produce light. The difference would be in the LEDs used. I haven't seen a Tolino or Oasis 3, but it sounds like they use yellow LEDs and the Clara and Glowlight 3 use orange.
I guess I should have said the "light assembly" or "layer," including the LEDs. Sorry. Just out of curiosity, do you know how many LEDs the Glowlight Plus (original one), Glowlight 3 and Kobo Clara have? I know the Nooks put the LEDs on the top of the screen instead of the bottom, but I'm wondering if they're basically the same other than that.
rcentros is offline   Reply With Quote
Old 08-10-2019, 11:17 AM   #5
j.p.s
Grand Sorcerer
j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.j.p.s ought to be getting tired of karma fortunes by now.
 
Posts: 5,771
Karma: 103362673
Join Date: Apr 2011
Device: pb360
Quote:
Originally Posted by rcentros View Post
I guess I should have said the "light assembly" or "layer," including the LEDs.
Sure, but for large enough orders, the customer can probably specify (within constraints) which LEDs are used.
j.p.s is offline   Reply With Quote
Advert
Old 08-10-2019, 12:53 PM   #6
DaleDe
Grand Sorcerer
DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.DaleDe ought to be getting tired of karma fortunes by now.
 
DaleDe's Avatar
 
Posts: 11,470
Karma: 13095790
Join Date: Aug 2007
Location: Grass Valley, CA
Device: EB 1150, EZ Reader, Literati, iPad 2 & Air 2, iPhone 7
Quote:
Originally Posted by rcentros View Post
I guess I should have said the "light assembly" or "layer," including the LEDs. Sorry. Just out of curiosity, do you know how many LEDs the Glowlight Plus (original one), Glowlight 3 and Kobo Clara have? I know the Nooks put the LEDs on the top of the screen instead of the bottom, but I'm wondering if they're basically the same other than that.
All LED's are on the edge and use a lightguide to distribute the light. See Front light in our wiki to see how this works. Contrast this to backlight.

Dale
DaleDe is offline   Reply With Quote
Old 08-10-2019, 06:05 PM   #7
rcentros
eReader Wrangler
rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.rcentros ought to be getting tired of karma fortunes by now.
 
rcentros's Avatar
 
Posts: 7,864
Karma: 51519919
Join Date: Mar 2013
Location: Boise, ID
Device: PB HD3, GL3, Tolino Vision 4, Voyage, Clara HD
Quote:
Originally Posted by DaleDe View Post
All LED's are on the edge and use a lightguide to distribute the light. See Front light in our wiki to see how this works. Contrast this to backlight.
I understand that. I was just curious about the differences in LED color and placement of LEDs.
rcentros is offline   Reply With Quote
Old 08-12-2019, 11:59 AM   #8
ZodWallop
Gentleman and scholar
ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.ZodWallop ought to be getting tired of karma fortunes by now.
 
ZodWallop's Avatar
 
Posts: 11,474
Karma: 111164374
Join Date: Jun 2015
Location: Space City, Texas
Device: Clara BW; Nook ST w/Glowlight, Paperwhite 3
Quote:
Originally Posted by rcentros View Post
...Just out of curiosity, do you know how many LEDs the Glowlight Plus (original one), Glowlight 3 and Kobo Clara have? I know the Nooks put the LEDs on the top of the screen instead of the bottom, but I'm wondering if they're basically the same other than that.
I don't remember offhand. Various reviews will mention how many LEDs are in the device and usually how many are white or orange. Considering one of the steady suppliers of such info is GoodEreader, you have to question how accurate the info is.
ZodWallop is offline   Reply With Quote
Reply


Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is the Apple "Yellow Submarine" e-book available anywhere? Robotech_Master General Discussions 3 04-19-2016 05:09 PM
Mystery and Crime Fletcher, J.S.: The Orange-Yellow Diamond. v1, 22 Sep 2008 HarryT Kindle Books 0 09-22-2008 03:21 AM
Mystery and Crime Fletcher, J.S.: The Orange-Yellow Diamond. v1, 22 Sep 2008 HarryT BBeB/LRF Books 0 09-22-2008 03:20 AM
Orange launches "Read & Go" Hadrien News 30 05-21-2008 09:04 PM


All times are GMT -4. The time now is 06:41 PM.


MobileRead.com is a privately owned, operated and funded community.