Editing Trinitron (section)

===Disadvantages===
====Visible support or damping wires====
Even small changes in the alignment of the grille over the phosphors can cause the color purity to shift. Since the wires are thin, small bumps can cause the wires to shift alignment if they are not held in place. Monitors using Trinitron technology have one or more thin tungsten wires running horizontally across the grille to prevent this. Screens 15" and below have one wire located about two thirds of the way down the screen, while monitors greater than 15" have 2 wires at the one-third and two-thirds positions. These wires are less apparent or completely obscured on [[Standard-definition television|standard definition]] sets due to wider [[scan line]]s to match the lower resolution of the video being displayed. On computer monitors, where the scan lines are much closer together, the wires are often visible. This is a minor drawback of the Trinitron standard which is not shared by shadow mask CRTs. Aperture grilles are not as mechanically stable as shadow or slot masks; a tap can cause the image to briefly become distorted, even with damping/support wires.<ref name="stweb.peelschools.org"/> Some people may find the wires to be distracting.<ref>{{Cite web|url=https://books.google.com/books?id=4wEAAAAAMBAJ&q=aperture+grille+blocks&pg=PA64|title = Maximum PC|date = July 2003}}</ref>

====Anti-glare coating====
A polyurethane sheet coated to scatter reflections is affixed to the front of the screen, where it can be damaged.{{Citation needed|date=June 2020}}