Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




415 posts

Ultimate Geek
+1 received by user: 7


# 105925 14-Jul-2012 11:39
Send private message

Just a question for those in the industry.

My mother was talking to me the other day - as she wanted to upgrade her LCD to a bigger one.  She went to a store and they told her they don't make LCD's anymore.

Could it be that she is misinformed and it is just certain LCD sizes they do not make?

Or could it be she is a older woman and they were trying to sell her the LED's?

Just wanted to get some facts on the technology.  I know it is changing very fast.  I know there isn't too much price difference now in LEDs and LCDS.

I still see them for sale on Harvey Normans and DSE websites.  So hrm...your insights would be much appreciated.






"In the real world as in dreams, nothing is quite what it seems" - The Book of Counted Sorrows





Senility Guild

 


Create new topic
Banana?
4768 posts

Uber Geek
+1 received by user: 1250

Subscriber

  # 655443 14-Jul-2012 11:52
Send private message

It is pretty hard to find an LCD these days. Samsung, Sony, Panasonic, Toshiba are all LEDs now, even in the 32".

Technically, they are still LCD, they just have LED backlighting. Samsungs cheaper ones are Direct LED (as opposed to edge lit)



415 posts

Ultimate Geek
+1 received by user: 7


  # 655447 14-Jul-2012 11:55
Send private message

Oh is that why they have the LCD/LED in the names...I always wondered why they had both.




"In the real world as in dreams, nothing is quite what it seems" - The Book of Counted Sorrows





Senility Guild

 


 
 
 
 


332 posts

Ultimate Geek
+1 received by user: 8

Trusted

  # 655448 14-Jul-2012 11:55
Send private message

Without going into great detail - you should be aware that "LED" TVs are simply LCD screens that use LED backlighting rather than the CCFL (fluorescent) backlighting used on the "conventional" LCD.  So similar screen technology, but different backlighting technique.  Plenty of info online re pluses/minuses.

EDIT: I'm obviously a slow typist - beaten to the posting punch!





"It is useless to attempt to reason a man out of what he was never reasoned into."
— most commonly attributed to Jonathan Swift, author/theologian



415 posts

Ultimate Geek
+1 received by user: 7


  # 655453 14-Jul-2012 12:06
Send private message

Thanks for your responses guys. I understand it now.




"In the real world as in dreams, nothing is quite what it seems" - The Book of Counted Sorrows





Senility Guild

 


22259 posts

Uber Geek
+1 received by user: 4784

Trusted
Subscriber

  # 655624 14-Jul-2012 17:53
Send private message

LED backlighting also lets them do annoying things like PWM dim it which makes flicker, and turn it off and on between frames, again adding flicker but reducing blur.

In order to qualify for all those energy stars that people obsess over they have to also not allow you to disable the backlight dimming feature on darker scenes, so it makes it all flickery when you have a night scene onscreen, and it means that captions etc will constantly ping-ponging between bright and dim since they seem to be ignored when deciding on the backlight brightness.




Richard rich.ms



415 posts

Ultimate Geek
+1 received by user: 7


  # 655627 14-Jul-2012 17:56
Send private message

Oh that doesn't sound so good.  Is that related to a particular brand?

I can't stand flickering - it would probably bring on a migraine.




"In the real world as in dreams, nothing is quite what it seems" - The Book of Counted Sorrows





Senility Guild

 


22259 posts

Uber Geek
+1 received by user: 4784

Trusted
Subscriber

  # 655629 14-Jul-2012 18:02
Send private message

Samsung and sony are the only 2 that I have had, the samsung seems to do it at a higher frequancy but its still just as annoying, just means you see more images as you look from one side of the screen to the other.

With the backlight on full and all the motion lighting and other options off it only dims down on a significantly dark scene, so its not too annoying, but you still see some fluctuation in brightness even with the OSD's in games onscreen.

Have the opposite problem on my warehouse cheapie TV, its brightness is full all the time and there is nothing to adjust it down. My dell LCD computer monitors are unusable on anything but full brightness.

An easy way to tell is to wave your hand around infront of the screen, if its flickering then you get a trail of hand outlines, if its on solidily then you get a blur. The flicker when dimmed on my PC makes for a hard time using it.




Richard rich.ms

 
 
 
 


1006 posts

Uber Geek
+1 received by user: 29


  # 656993 17-Jul-2012 12:56
Send private message

I thought you could often change the setting for that auto-dimming in the hidden service menus? Obviously depends on the TV in question

Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Dunedin selects Telensa to deliver smart street lighting for 15,000 LEDs
Posted 18-Jul-2019 10:21


Sprint announces a connected wallet card with built-in IoT support
Posted 18-Jul-2019 08:36


Educational tool developed at Otago makes international launch
Posted 17-Jul-2019 21:57


Symantec introduces cloud access security solution
Posted 17-Jul-2019 21:48


New Zealand government unveils new digital service to make business easier
Posted 16-Jul-2019 17:35


Scientists unveil image of quantum entanglement
Posted 13-Jul-2019 06:00


Hackers to be challenged at University of Waikato
Posted 12-Jul-2019 21:34


OPPO Reno Z now available in New Zealand
Posted 12-Jul-2019 21:28


Sony introduces WF-1000XM3 wireless headphones with noise cancellation
Posted 8-Jul-2019 16:56


Xero announces new smarter tools, push into the North American market
Posted 19-Jun-2019 17:20


New report by Unisys shows New Zealanders want action by social platform companies and police to monitor social media sites
Posted 19-Jun-2019 17:09


ASB adds Google Pay option to contactless payments
Posted 19-Jun-2019 17:05


New Zealand PC Market declines on the back of high channel inventory, IDC reports
Posted 18-Jun-2019 17:35


Air New Zealand uses drones to inspect aircraft
Posted 17-Jun-2019 15:39


TCL Electronics launches its first-ever 8K TV
Posted 17-Jun-2019 15:18



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.