[mythtv-users] Displaying 4:3 content on a 16:9 TV - black bo rders

[Buechler, Mark R]

Projectors are easier to burn than standard monitors due to their
high-output nature. All CRT-based displays have phosphors which in time will
fade. The 4:3 image on a 16:9 display will produce this fading much quicker
than the black bars on the sides. By having dark gray bars instead this
fading is more even over time and less noticeable. This fading also happens
much faster on higher-output CRTs (used in projectors) than with standard
direct-view CRT displays.  

-----Original Message-----
From: Kenneth Aafløy [mailto:lists at kenneth.aafloy.net] 
Sent: Friday, July 09, 2004 5:54 PM
To: Buechler, Mark R
Cc: Discussion about mythtv
Subject: Re: [mythtv-users] Displaying 4:3 content on a 16:9 TV - black bo
rders

On Friday 09 July 2004 23:34, Buechler, Mark R wrote:
> I have a question regarding the black borders which show on a 16:9 
> format TV when displaying video in 4:3 format. I have a rear 
> projection TV and I'm concerned that the lack of "normal" burn where 
> these black bars are will someday become very apparent in contrast to 
> the rest of the picture. Is there an easy way to change the color of 
> these black borders? Maybe a dark gray would be more appropriate? If I 
> were to change this in code, where would I look, in 
> libs/libmythtv/videoout.xv.cpp? Could it be as simple as changing an Xv
parameter?

How come a dark grey will put your telly in a better position? Usually the
video that will be shown in the middle portion is a lot brighter than this. 
Anyways, I've only seen burn-ins on monitors that has been on night and day
for a few years with static images. Since you don't display static images
all of the time, but mostly are showing video, I'd say your on the safe
side..no?

Kenneth




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