[raychen]

Hi all,


I got a new LT150 very recently. But there is a visual problem bothers me. With or without the input signal, LT150 always shows an image with a lighted rectangle border surround the image. I originally thought this is due to light leakage, but after a close look, you can see pixel structures inside this extra border. My questions are:

a. has anyone using LT150 seen this phenomenon,

b. possible cause.


I attached two pictures to show this problem.

pic 1. NEC logo, you can see the rectangle lighted border

pic 2. close range view shows the pixels inside the border


Thanks advance for the help.


ray

http://www.avsforum.com/ubb/image_uploads/p1a.jpg

http://www.avsforum.com/ubb/image_uploads/p2.jpg



[This message has been edited by raychen (edited 09-28-2001).]

 

[Gary McCoy]

This is not uncommon with digital projectors - the lamp illuminates more of the micro-mirror chip than the active area, so there is a little border around the picture. The best way to handle this is to be really really carefull with the projector setup, and use a black-bordered screen with the border projecting onto the black. The "Pixel Cropping" screen on the AVIA DVD is a good one to setup the screen with. I have seen this on some LCD projectors as well.


Gary

 

[Huey]

Check this post out: www.avsforum.com/ubb/Forum10/HTML/009213.html

You can also mask (with black felt or cloth) the light leakage out of sight. This is a common problem (feature ) with DLP and some LCD.


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Huey ;-]