No one likes to clean touchscreens marked with greasy fingers, no matter the device. Thinking about the development of the automotive market and the constant increase in the size of touch displays in cars, General Motors (GM) has filed a patent for a self-cleaning touchscreen display.. The technology should use the purple pixel to remove the fat left on the screens.

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Perhaps the first thing people think of when they think of a self-cleaning display is a screen with a small robotic arm that cleans the screen like a car wiper. It would be impractical and even a little comical. But a patent registered by GM, imagine Screen design capable of discreetly removing fingerprints.

self-cleaning touch display

In addition to the red, green and blue pixels, the updated General Motos displays will include an additional purple pixel, which, like ultraviolet light, will be invisible to the human eye. The screen will also use an invisible screen cover designed to absorb certain wavelengths of light and cause a chemical reaction. In this way, the purple pixel will be able to remove the fingerprints left on the screen by itself. Since both are designed to be invisible, the technology must not change the projected colors on the screen.

According to the GM patent, the coating will be based on a metal oxide capable of reacting to a purple pixel in the same way that it would react to ultraviolet radiation from sunlight. The self-cleaning mode can be activated manually by the driver, or it will activate itself when the vehicle is not in use. We don’t know yet at what stage of the development of the solution GM is, so it is impossible to say how long it will take the company to demonstrate the technology.

It’s interesting to see new technologies for cars, like tires that don’t puncture. In the case of the purple pixel self-cleaning touchscreen, we can imagine that, if successful, the technology could be implemented in several other touchscreen devices such as tablets, smartphones, and Kindles.

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Source: Gizmodo

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