OLED TVs: Technology Advancements Thread - Page 450 - AVS Forum | Home Theater Discussions And Reviews

Forum Jump: 
 963Likes
Reply
Thread Tools
post #13471 of 13472 Unread Today, 08:16 AM
AVS Special Member
 
slacker711's Avatar
 
Join Date: Apr 2006
Posts: 1,053
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 402 Post(s)
Liked: 389
Quote:
Originally Posted by tgm1024 View Post
Well, as one of the mini-legion of folks that have kept a candela (sic) burning for anything of the form "Crystal LED", I have to say that I'm overjoyed at the potential. Do you suppose that 4K was what kept it from showing up on the radar sooner?
The higher resolution does make it harder, but there are other issues where size impacts yields. The rumors expect the Apple Watch to be first and even assuming success there, I would expect it will be a while before TV's are feasible.

Here is a decent article covering some of the issues.

http://www.asahi-optics.com/news/36.html

Eye opening quote.

Quote:
“Micro-LEDs require a high yield rate of more than 99.9999%, close to 100% in fact,” said PlayNitride CEO Charles Li.
slacker711 is online now  
Sponsored Links
Advertisement
 
post #13472 of 13472 Unread Today, 12:56 PM
AVS Special Member
 
fafrd's Avatar
 
Join Date: Jun 2002
Posts: 8,160
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Liked: 2003
Quote:
Originally Posted by slacker711 View Post
The higher resolution does make it harder, but there are other issues where size impacts yields. The rumors expect the Apple Watch to be first and even assuming success there, I would expect it will be a while before TV's are feasible.

Here is a decent article covering some of the issues.

http://www.asahi-optics.com/news/36.html

Eye opening quote.
They are talking primarily about assembly-related yield onto the backplane where each failure will result in a dead pixel;

"Micro-LEDs require a high yield rate of more than 99.9999%, close to 100% in fact,” said PlayNitride CEO Charles Li.
The reason behind this especially high demand is the issue of dead-pixels."


By way of reference, LGs WOLED spec is apparently somewhere between 5 and 10 dead pixels. A 4K display contains ~8M pixels, so an assembly yield of 99.9999% corresponds 0.00001% or about 8 bad pixels .
fafrd is online now  
Sponsored Links
Advertisement
 
Reply OLED Technology and Flat Panels General

Tags
Led Hdtv , Lcd Hdtv , Plasma Hdtv , Oled Tv , Lg , Samsung



Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off