SlideShare a Scribd company logo
1 of 2
Download to read offline
For interesting reads on Plasma HDTV, LED HDTV, LCD HDTV, check
http://plasmavslcdvsled.net



HDTV Almanac - A True LED HDTV
One of the most interesting stories to come out of CES 2012 is
about a pair of technology demonstration displays that were
tucked away in the Sony booth. Labeled “CrystalLED”, these 55″
HDTV panels were quite different from any other display that has
been marketed as an “LED HDTV” in recent years. These panels
actually were LED displays, using discrete, individual LED
components for each sub-pixel in the 1080p display. That adds
up to more than six million LEDs.

Reports from the show were that the image quality was
excellent, and why shouldn’t it be? LEDs are emissive, so viewing
angle should not be an issue, and they are mind-numbingly fast,
so there should be no problem with image blur. LEDs have an
extremely long lifetime (when was the last time you had an LED
power indicator “burn out” on a piece of equipment?), so they
should last forever, or at least well beyond the time when you’d
want to replace it. The only problems that I can foresee are the
challenge of “binning” the parts so that you get consistent color
output from all two million LEDs of the same color, and the fact
that some LEDs show color shift with changing temperatures.

Oh, and then there’s the problem of how do you actually build
these suckers? A tip of the hat goes to my friend and colleague,
Ken Werner, did some old-fashioned journalistic legwork for his
“Display Daily” column for Insight Media. He cites a “reliable
source” who indicated that each of the six million LED chips were
individually wire-bonded to the electrodes. It is not immediately
obvious how this sort of assembly could be automated at a speed
and yield that would be economically feasible. In fact, the display
industry is moving toward production processes that let you
spray or print the display materials onto the substrates; a move
to discrete LED components would seem to be a big step in the
wrong direction.

So my best guess is that you should not bank your HDTV budget
in hopes that Sony will be selling one of these LED displays any
time soon (if ever).

Posted by Alfred Poor, January 16, 2012 5:00 AM


For interesting reads on Plasma HDTV, LED HDTV, LCD HDTV, check
http://plasmavslcdvsled.net
	
  

More Related Content

Viewers also liked (7)

Eskema libro
Eskema libroEskema libro
Eskema libro
 
Ejemplo 01
Ejemplo 01Ejemplo 01
Ejemplo 01
 
25 Jahre Yvel - "Kompetenz die bewegt"
25 Jahre Yvel - "Kompetenz die bewegt"25 Jahre Yvel - "Kompetenz die bewegt"
25 Jahre Yvel - "Kompetenz die bewegt"
 
Indija
IndijaIndija
Indija
 
Trata de personas
Trata de personasTrata de personas
Trata de personas
 
4
44
4
 
Dalai lama
Dalai lamaDalai lama
Dalai lama
 

A True LED HDTV, from Sony

  • 1. For interesting reads on Plasma HDTV, LED HDTV, LCD HDTV, check http://plasmavslcdvsled.net HDTV Almanac - A True LED HDTV One of the most interesting stories to come out of CES 2012 is about a pair of technology demonstration displays that were tucked away in the Sony booth. Labeled “CrystalLED”, these 55″ HDTV panels were quite different from any other display that has been marketed as an “LED HDTV” in recent years. These panels actually were LED displays, using discrete, individual LED components for each sub-pixel in the 1080p display. That adds up to more than six million LEDs. Reports from the show were that the image quality was excellent, and why shouldn’t it be? LEDs are emissive, so viewing angle should not be an issue, and they are mind-numbingly fast, so there should be no problem with image blur. LEDs have an extremely long lifetime (when was the last time you had an LED power indicator “burn out” on a piece of equipment?), so they should last forever, or at least well beyond the time when you’d want to replace it. The only problems that I can foresee are the challenge of “binning” the parts so that you get consistent color output from all two million LEDs of the same color, and the fact that some LEDs show color shift with changing temperatures. Oh, and then there’s the problem of how do you actually build these suckers? A tip of the hat goes to my friend and colleague, Ken Werner, did some old-fashioned journalistic legwork for his “Display Daily” column for Insight Media. He cites a “reliable source” who indicated that each of the six million LED chips were individually wire-bonded to the electrodes. It is not immediately obvious how this sort of assembly could be automated at a speed and yield that would be economically feasible. In fact, the display industry is moving toward production processes that let you spray or print the display materials onto the substrates; a move to discrete LED components would seem to be a big step in the wrong direction. So my best guess is that you should not bank your HDTV budget
  • 2. in hopes that Sony will be selling one of these LED displays any time soon (if ever). Posted by Alfred Poor, January 16, 2012 5:00 AM For interesting reads on Plasma HDTV, LED HDTV, LCD HDTV, check http://plasmavslcdvsled.net