[RahulNagaraj]

General Motors is said to be working on a new tech which could automatically clean fingerprint smudges, oil residuals, dust and other debris from the surface of a screen.



According to reports, the American car brand has filed a patent for a "self-cleaning system for displays using light emitting diodes emitting invisible violet light". As per the patent, in addition to the RGB LEDs embedded into the screens, there will also be a fourth LED which produces violet light.

General Motors explains that along with the violet LED, the display will also get a photocatalytic coating integrated into a transparent layer. When the violet light interacts with the photocatalyst on the screen, a chemical reaction takes place, which, with the water molecules in the air, can clean the surface of any dust or fingerprints.

Reports state that having a dedicated violet LED allows the tech to work on-demand, regardless of the time of day. The new tech can also be set to clean the screens at pre-defined intervals.

Having said that, this technology is still in its patent stage, and like any other patent, there is no guarantee it would make it onto a production model. However, if it does, it could be a costly feature option to have.

Source: AutoEvolution

Link to Team-BHP news

[RedTerrano]

Originally Posted by RahulNagaraj

When the violet light interacts with the photocatalyst on the screen, a chemical reaction takes place, which, with the water molecules in the air, can clean the surface of any dust or fingerprints.

Wait what?
So if the whole care is coated with this photocatalyst, will shining a violet LED clean it?

I am not sure I understand how this technology works.
What happens exactly in the chemical reaction? Does it produce heat to vaporise everything on it?