I have a Samsung SyncMaster 204B, but it is on a Windows PC. As for the frequency, 60 Hz is not good in close proximity to fluorescent lights. I had a lot of visual defects in two different units, until I changed to 120 Hz(I think). /Steve -- Steven Greenberg Email: steve@ssgreenberg.name 251 Holland Rd. Phone: (774)241-0095 Fiskdale, Massachusetts 01518-1231 Web: http://www.ssgreenberg.name Other Email: s.greenberg@ieee.org ssg@alum.mit.edu
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs. -- Rich Sent from Marlborough, MA, United States
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
The only reason CRT flicker bothers the eye is because of the time it takes the electron guns to return to the top of the screen. Since LCDs don't have an electron gun (I think the whole screen refreshes at once), the flicker is not really noticeable since there is no waiting for the gun to reposition.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out. LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes. I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz. On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk@gmail.com> wrote:
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out.
LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes.
I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz.
Interesting!
On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk@gmail.com> wrote:
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
I thought the whole big deal about refresh rates on LCDs is that they actually have a florescent light in the back of them that shines through the liquid crystal. I've noticed that it's less of a big deal with LCDs though... -Randall On Thu, Aug 20, 2009 at 3:14 PM, Jim Dibb <jimdibb@gmail.com> wrote:
I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out.
LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes.
I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz.
On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk@gmail.com> wrote:
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
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http://solutions.3m.com/wps/portal/3M/en_US/Vikuiti1/BrandProducts/secondary... And click on Navigation and choose "Backlight". -Randall On Thu, Aug 20, 2009 at 3:20 PM, Randall Mason <clashthebunny@gmail.com>wrote:
I thought the whole big deal about refresh rates on LCDs is that they actually have a florescent light in the back of them that shines through the liquid crystal.
I've noticed that it's less of a big deal with LCDs though...
-Randall
On Thu, Aug 20, 2009 at 3:14 PM, Jim Dibb <jimdibb@gmail.com> wrote:
I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out.
LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes.
I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz.
On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk@gmail.com> wrote:
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
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I thought the whole big deal about refresh rates on LCDs is that they actually have a florescent light in the back of them that shines through the liquid crystal.
I've noticed that it's less of a big deal with LCDs though...
I have an LCD that uses LED backlighting, but it still has a refresh rate.
-Randall
On Thu, Aug 20, 2009 at 3:14 PM, Jim Dibb <jimdibb@gmail.com> wrote:
I don't think refresh rate applies to LCDs in the 'flicker' sense at all. Refresh is for scanning (crt) displays that have to keep scanning or the phosphor pixels fade out.
LCD pixels are 'ON' or 'OFF' they don't fade out between refreshes.
I believe the new hype on the 120 or 240 Hz refresh on big lcd tvs is all about motion interpolation, not flicker. Since the source video framerate is still only 24 or 30 Hz.
On Thu, Aug 20, 2009 at 3:04 PM, Richard Klein <richspk@gmail.com> wrote:
On Thu, Aug 20, 2009 at 2:32 PM, Steven Greenberg<steve@ssgreenberg.name> wrote:
I have a Samsung SyncMaster 204B, but it is on a Windows PC.
As for the frequency, 60 Hz is not good in close proximity to fluorescent lights.
I had a lot of visual defects in two different units, until I changed to 120 Hz(I think).
That's true with CRTs. I think it may be less important with LCDs. I have a SyncMaster 213T at home, and if you use the DVI port you have no choice but 60 Hz. I've never noticed any flicker from it. Most of the lighting in my apartment is CFLs.
-- Rich Sent from Marlborough, MA, United States _______________________________________________ Wlug mailing list Wlug@mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug
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participants (5)
-
Jim Dibb -
jrm8005＠gmail.com -
Randall Mason -
Richard Klein -
Steven Greenberg