In geological intimacy
this act of destruction puts the stratified composition of the
screen on display. The crust of the image in a thin plastic film. More
resilient than you might expect, the cover requires considerable force
to rupture. The polarizing film
filters out all light except light traveling at a particular angle.
Under the film is a glass substrate,
etched with microscopic grooves that match the lines of the polarized
filter. Held in place by the fine etching, liquid crystal.
Angular, geometric with the tendency of to
align in a structural fashion, liquid crystal, uncharged, degrades
in formal regularity. Like any clear crystal, the
nematic liquid crystal transmits light. But when an electric current
organizes the fragments of the crystal into a straight line, the
structure of the liquid crystal lost. Transparent electrodes at
either end of the crystalline spiral embrace the nematic liquid.
Charged, the electrodes deform the nematic liquid’s helical structure,
barring the crystal from twisting the crests of entering light by 90
degrees. As with
window blinds, the twisting crystal allows for gradations of light
to pass. Thus the duality of the liquid crystal allows for the
continuous transformation of light from its brightest to its absence.The
strata of the digital image is mirrored with a second glass filter and a
polarizing film, followed by a thick glass plate, resting on top of a