Mura (cloudiness) on larger LCD tv's

[Dan]

I recently bought a Samsung LN-S4695D 46" LCD television. In general I like
the TV, except that dark scenes display vertical bars of lighter area
extending approximately 6 inches in from each side (i.e., 6" wide bars on
each end the height of the display) . This is especially apparent in
16x9/full screen images. I have seen quite a bit of comment on Sonys this
size regarding this defect. I guess I expected better from a $2500
television. I'm wondering if some of the experts here would comment on this
effect and any possible remedies. Is a set that has this problem simply
defective/irreparable? I am still within the 30 day return period (Circuit
City) but this is not an easy item to return, given its size. Any input
appreciated.

Dan

 

[Roy Starrin]

On Mon, 19 Feb 2007 12:19:29 -0800, "Dan" <none@hotmail.com> wrote:

I recently bought a Samsung LN-S4695D 46" LCD television. In general I like
the TV, except that dark scenes display vertical bars of lighter area
extending approximately 6 inches in from each side (i.e., 6" wide bars on
each end the height of the display) . Any input
appreciated.

You might muck around in here or some adjacent forum and see if your
model is discussed:
http://www.avsforum.com/avs-vb/forumdisplay.php?f=166

 

[Dan]

"Roy Starrin" <starrin@verizon.net> wrote in message
newsltlt298ch0sgmamdbscruhn7s5c8f2qhr@4ax.com...

On Mon, 19 Feb 2007 12:19:29 -0800, "Dan" <none@hotmail.com> wrote:

I recently bought a Samsung LN-S4695D 46" LCD television. In general I
like
the TV, except that dark scenes display vertical bars of lighter area
extending approximately 6 inches in from each side (i.e., 6" wide bars on
each end the height of the display) . Any input
appreciated.

You might muck around in here or some adjacent forum and see if your
model is discussed:
http://www.avsforum.com/avs-vb/forumdisplay.php?f=166

Thansk Roy, yeah I've been on that one. There is discussion of the problem
on the set. Apparently it uses the same screen as the 46" Sonys, which also
have a lot of comment re: this issue.

I'd like to know what the technical basis of this is. I gather it relates
to the way the screen is backlit.

Dan

 

[Roy Starrin]

On Tue, 20 Feb 2007 09:53:11 -0800, "Dan" <none@hotmail.com> wrote:

"Roy Starrin" <starrin@verizon.net> wrote in message

You might muck around in here or some adjacent forum and see if your
model is discussed:
http://www.avsforum.com/avs-vb/forumdisplay.php?f=166

Thansk Roy, yeah I've been on that one. There is discussion of the problem
on the set. Apparently it uses the same screen as the 46" Sonys, which also
have a lot of comment re: this issue.

I'd like to know what the technical basis of this is. I gather it relates
to the way the screen is backlit.

Have you been to the dedicated thread?
http://www.avsforum.com/avs-vb/showthread.php?p=8866702&&#post8866702

There is also this, which has was in the Sony Kv2500 Calibration
thread
http://www.avsforum.com/avs-vb/showthread.php?p=8978826&&#post8978826

Beyond that, I'm at a loss. Am not a techie. Just came across this
while doing research as to what my next (first) LCD will be.

 

On Feb 19, 4:19 pm, "Dan" <n...@hotmail.com> wrote:

I recently bought a Samsung LN-S4695D 46" LCD television. In general I like
the TV, except that dark scenes display vertical bars of lighter area
extending approximately 6 inches in from each side (i.e., 6" wide bars on
each end the height of the display) . This is especially apparent in
16x9/full screen images. I have seen quite a bit of comment on Sonys this
size regarding this defect. I guess I expected better from a $2500
television. I'm wondering if some of the experts here would comment on this
effect and any possible remedies. Is a set that has this problem simply
defective/irreparable? I am still within the 30 day return period (Circuit
City) but this is not an easy item to return, given its size. Any input
appreciated.

Dan

Dan,

Did you return your Samsung? I just purchased the same model on
Amazon.com and am noticing the exact same problem. Is this a defect?

Eric

 

[John]

On 21 Mar 2007 20:10:25 -0700, ewilkes@gmail.com wrote:

On Feb 19, 4:19 pm, "Dan" <n...@hotmail.com> wrote:
I recently bought a Samsung LN-S4695D 46" LCD television. In general I like
the TV, except that dark scenes display vertical bars of lighter area
extending approximately 6 inches in from each side (i.e., 6" wide bars on
each end the height of the display) . This is especially apparent in
16x9/full screen images. I have seen quite a bit of comment on Sonys this
size regarding this defect. I guess I expected better from a $2500
television. I'm wondering if some of the experts here would comment on this
effect and any possible remedies. Is a set that has this problem simply
defective/irreparable? I am still within the 30 day return period (Circuit
City) but this is not an easy item to return, given its size. Any input
appreciated.

Dan

Dan,

Did you return your Samsung? I just purchased the same model on
Amazon.com and am noticing the exact same problem. Is this a defect?

Eric

Most likely just a design pushing the limits of the technology. LCD
screens work OK up to 26-27" (with a few OK at 32"), but the consensus
of Consumer Reports and the like is that for a screen larger than 32",
you bite the bullet and go with plasma.

We're 90% happy with our 26" Sharp: the view angle isn't a wide as I
would like and large black areas are more dark gray than black - both
typical of LCDs.

John

 

[Roy Starrin]

On Thu, 29 Mar 2007 13:18:18 -0400, John <look@sig.net> wrote:

Most likely just a design pushing the limits of the technology. LCD
screens work OK up to 26-27" (with a few OK at 32"), but the consensus
of Consumer Reports and the like is that for a screen larger than 32",
you bite the bullet and go with plasma.

'Twas that way once, but no longer. Read the March 2007 Consumer
Reports. My family room is too bright to bite the plasma bullet