Ordinary window coloring is fixed, there is no room for adjustment, and can’t make things more or less. The use of electronic and mechanical blinds can block the light, but these all involve moving components, which may not be what the user wants. Although the windows can use electrochromic hardware to adjust the light transmission value by changing the voltage < / P > < p > in a pair of patents granted by the U.S. patent and Trademark Office on Tuesday, apple proposed some solutions to the coloring problem of Apple cars. According to the patent, apple cars can have an intelligent window coloring system, which uses liquid crystal technology to block sunlight and other people from looking inside the car, so that drivers and passengers can have more privacy and not be peeped at. This system can start automatically and provide certain privacy. Window coloring also provides a lot of benefits for the driver, reducing the light into the car, which can make the driver’s glasses more tolerant to bright local environment. < / P > < p > in the first patent & quot; device with a guest LCD modulator & quot; Apple suggested that the windows could have multiple layers, designed to block different types of light. This can be divided into visible and non visible wavelengths. In terms of non visible light, selective filtering can block ultraviolet light, as well as near-infrared and far-infrared light, and process infrared wavelengths generated by the sun and low-power emitters. Blocking infrared rays prevents excessive heat build-up in the car and any damage that may be caused by ultraviolet light. < / P > < p > these layers can be made of multi-layer crystalline metal on the seed layer of crystalline oxide with barrier layers between each layer. Although this can be mainly composed of static layers, such as for UV protection, there are also opportunities to introduce some adjustable elements. Apple recommends using a & quot; guest liquid crystal light modulator & quot; as a layer, a polymer substrate containing liquid crystal material with dyes between them. These polymer substrates can be thermoplastic and molded to confirm to the surface and shape of the window, while the dyes can be dichroic or a mixture of azo and anthraquinone dyes. < / P > < p > the second patent is the system and method of dynamic privacy and window coloring, which seems to be in line with the first patent. It is a system to change the degree of window coloring. Apple said that because traditional coloring does not adequately protect and shield occupants from sunlight and other forms of light from outside the car, it also does not provide enough privacy. The patent proposes to use a computing device connected to the coloring hardware module to adjust the coloring level, generally by adjusting the voltage level of the adjustable coloring film. Through the measurement of various sensors on the vehicle, the calculation equipment can judge the situation and automatically change the coloring level. < / P > < p > this series of sensors may judge that the visibility of the driver is not very good, trigger the color reduction, or it may be too bright or too hot, and in the process, the color will be high. The same system can also be used to determine whether it is located in a densely built area such as a city or on a highway. The former needs more coloring than the latter. To know whether there are passengers in the car, you can also determine the degree of coloring. For example, when parking, automatically put the coloring to the maximum. Car driving lidar systems may be able to tell if there are pedestrians nearby, and they may look at the vehicle, which in turn may trigger a coloring reaction. The iPhone 12 keynote has been recorded in Apple park