Actually LCoS is not a form of LCD, I think of it as a cross between LCD and DLP. It uses mirrors, liquid crystal, and it rotates polarizes light. LCoS and most current LCDs(or even those a few years old) don't have any ghosting issues either
"ghosting issues" - well, that depends on your understanding of just what those words mean.
If you're talking about the "light trails" (of older LCD sets) on fast movement images, then yes today's LCD and SXRD (LCoS) models don't suffer this effect.
But what I'm referring to is the natural BLURRING effect that is inherent to LCD technology (which you can explore furthur on various websites - Sharp even has a technical paper about it), which is always present on faster moving images, especially noticeable with sports, like basketball.
How it effects a particular viewer's eyes/brain is another matter; some don't have a problem with it, while others notice it immediately, and some complain it gives a slight headache or even worse: eye fatigue, etc.
It's really noticeable in a darker room environment, and if you had a plasma next to an LCD you would easily notice the onging blurring effect on the LCD that's not present on the plasma.
JVC and SONY will have newly redisigned flat panel LCDs this summer/fall, featuring 120hz signal processing to help reduce the blurring (compared to the normal 60hz processing of current LCD sets). Samsung and Sharp will also offer newere LCD displays with the 120hz feature.
Actually LCos IS a form of LCD, it is a lcd screen with a mirror attached on the backside. It is a traditional LCD display except that it reflects light back as it passes through it and hits the mirror. Therefore, LCos is reflective and traditional LCD is transmissive. It is not a combination of DLP and LCD. DLP uses little micro mirrors that can be flipped and a color wheel. LCos does not have mirrors that flip and no color wheel. Think of LCos as a stained class window with a mirror backing. LCos and LCD cannont reproduce blacks as well as DLP by themselves a dynamic iris must be used. All current technologies today are tradeoffs and no one is the best. Your choice depends on the room application, primary use and budget.
Reader Comments (Page 1 of 1)
Deathwish238 @ May 21st 2007 7:56PM
Actually LCoS is not a form of LCD, I think of it as a cross between LCD and DLP. It uses mirrors, liquid crystal, and it rotates polarizes light. LCoS and most current LCDs(or even those a few years old) don't have any ghosting issues either
Joseph R @ May 22nd 2007 8:32AM
"ghosting issues" - well, that depends on your understanding of just what those words mean.
If you're talking about the "light trails" (of older LCD sets) on fast movement images, then yes today's LCD and SXRD (LCoS) models don't suffer this effect.
But what I'm referring to is the natural BLURRING effect that is inherent to LCD technology (which you can explore furthur on various websites - Sharp even has a technical paper about it), which is always present on faster moving images, especially noticeable with sports, like basketball.
How it effects a particular viewer's eyes/brain is another matter; some don't have a problem with it, while others notice it immediately, and some complain it gives a slight headache or even worse: eye fatigue, etc.
It's really noticeable in a darker room environment, and if you had a plasma next to an LCD you would easily notice the onging blurring effect on the LCD that's not present on the plasma.
JVC and SONY will have newly redisigned flat panel LCDs this summer/fall, featuring 120hz signal processing to help reduce the blurring (compared to the normal 60hz processing of current LCD sets). Samsung and Sharp will also offer newere LCD displays with the 120hz feature.
LCD - liquid crystal
SXRD - liguid crystal on silicon (LCoS)
...so SXRD is a form of LCD technology, but obviously not the same [to clarify your other comment above].
JustbuyaTValready @ May 22nd 2007 12:48PM
Actually LCos IS a form of LCD, it is a lcd screen with a mirror attached on the backside. It is a traditional LCD display except that it reflects light back as it passes through it and hits the mirror. Therefore, LCos is reflective and traditional LCD is transmissive. It is not a combination of DLP and LCD. DLP uses little micro mirrors that can be flipped and a color wheel. LCos does not have mirrors that flip and no color wheel. Think of LCos as a stained class window with a mirror backing. LCos and LCD cannont reproduce blacks as well as DLP by themselves a dynamic iris must be used. All current technologies today are tradeoffs and no one is the best. Your choice depends on the room application, primary use and budget.