Re: LCD's and Room Illumination
Re: LCD's and Room Illumination
- Subject: Re: LCD's and Room Illumination
- From: Andrew Rodney <email@hidden>
- Date: Sun, 11 Nov 2007 16:23:53 -0700
- Thread-topic: LCD's and Room Illumination
On 11/11/07 3:57 PM, "email@hidden" wrote:
> While I recognise your knowledge and experience in this field it is your
> common sense in the
> application that is probably your most valaubale trait. Having dispensed with
> the flattery I would
> like to say that I am perplexed by the necessity to have such low ambient
> lighting conditons.
Lower ambient light means less light striking the display for one. Its about
how you want to control the contrast ratio of the unit where the black is
affected by this light. When you measure black using the instrument, this
naturally isn't being considered (the instrument blocks all ambient light
from hitting that area of the display). The black it measures and the black
you view are not the same. Lower ambient light diminish this issue for
obvious reasons. It is for this reason I say, based on conversations with a
display designer, that you can't have too low an ambient light. Some would
argue that too low would make it difficult to work (walk around, find your
computer glasses) in the room which I will accept. None the less, the lower
the level, the less effect on the display itself.
At some point, we hope to view the print and the display so, the ambient
light will raise just from the viewing booth. Obviously we want to ensure as
little of this light strikes the display as possible.
That said, 20 lux is pretty dim. But if we're measuring 20 lux right next to
the display, its affecting the black of that display no?
Andrew Rodney
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