~e; more on emscopics
human being <firstname.lastname@example.org>
Mon, 16 Dec 2002 00:00:19 -0600
i thought i had an image embedded in a microscope
movie which demonstrated this LCD pixel vs. Graphic
pixel concept, yet i had to create a few new images
in addition, to make a quick sketch...
- the following uses a digital microscope placed
against a computer LCD screen to demonstrate how
a screen displays graphical information, versus how
this same information is traditionally understood
as 'pixels' in graphics and other applications....
first, to get an overview of a icon and text on an
LCD laptop computer screen, here's an external drive:
and here's another...
now if you look very closely at the images of the LCD screen,
it appears there is a graphic grid where 1 box = 1 piece of
color data, or a pixel.
i was a bit wrong in my last description after thinking this
through a bit more, but in fact there are 3 colors that make
up each 'pixel/box' and it consists of red, green, and blue
components in an additive process, meaning that red & blue
could equal one color, and all colors would be white, and
no colors would be black...
here, at a higher magnification (i think it is 60x) is an
example of this RGB (red/green/blue) grid on the LCD screen:
if you first notice the dark vertical band, i first thought
it might be a seam in the process of making the screen itself
but exploring it for awhile i realized i was looking at an
actual 'letter' composed of many many RGB slits, 3 colors
making one 'box/pixel' as far as i know. though because i
have shaky hands, it was out of the correct focal range...
so then i tried to capture a letter to better demonstrate
how each of these three RGBs can be manipulated to create
colored data on the screen, seen at another scale as an icon
or text, so here is one microscopic photo...
this still suffers from the shakes, but i believe it is also
showing what is part of the graphical shadow elements in the
interface, which has a letter and its shadow in black. to the
lower right. it is an intermediary photo showing how these
RGB boxes are finely tuning themselves to become larger pieces...
there, here is the photo that actually shows the result:
it is of the letters 'k' and 's' and if you step back from
your monitor it should be clearer and easier on the brain...
this microphoto clearly shows the LCD screen creating the
graphical/image screen, and how 1 graphical pixel is made
of 3 RGB values. this is a tentative understanding, as i've
read quite a bit about this and taken courses about this,
and yet to see it first hand changes it a bit, as the uni-
versal aspect of 'pixels' here is directly related to the
resolution of the screen, and its composition (say, if its
not an LCD monitor, then information is being conveyed the
same way a TV shoots its information onto a glowing screen,
an entirely different process, yet using similar principles).
so, some information about all of this. i find it fascinating.
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