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E-Ink technology has proven to be useful for many applications since its inception in 1997 -from digital white paper to laptop form, pa personal equipment. At CES 2022, this technology reached out to the automotive industry when BMW unveiled an e-ink car that could change colors depending on the weather and the way cars move, or how they drive.
In answer to your first question, no, the future model is not close to the production line even though it appeared on the display on a display car, called the BMW iX Flow with E Ink.
Electrophoretic design is only used as a car body brace but it works just as the ink shows in your Kindle. The coating is fitted with millions of microcapsules each with a white pigment and a clear black color. Depending on the nature of the process, the application of electricity to the material causes white or black paint to rise above the microcapsule, changing the color of the vehicle in a short period of time.
Although the same repetition only alternates between the two colors, the tablet can be enlarged to reflect different shades of the rainbow. “This gives the driver the freedom to express aspects of his personality or to enjoy the changes outside, and to explain this whenever he is in his car,” Stella Clarke, Project Manager for BMW iX Flow with E Ink, said in a statement. “Like fashion or media advertising, the car displays a variety of styles in everyday life.”
External e-ink displays can also be useful for other tasks such as changing colors depending on the weather to increase car battery life (and hence, variability) in cold environments or to reduce the need for cooling in the cold.
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