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Car navigator has now become a necessary on-board equipment for car owners, and almost every car will be equipped with one. Since the development of the car navigator, the screen scale is also changing, from the beginning of 3.5 inches to today's 7 inches. When shopping, motorists are more doubtful whether to choose a large screen or a small screen.

Navigation is the most basic function of on-board navigator, so the navigator scale directly affects the driver's acquisition of navigation information in the navigation process. When the scale of the navigation map is enlarged to the same degree, the size of the map range displayed by the navigator with different screen scales is the same. Due to the different screen sizes, the size of the font and the precision of the picture are different.

In the navigation process, only from the specific degree of displaying the map, the navigator with large screen scale has great advantages, which can provide a very intuitive navigation picture for the driver. And now the navigation map is developing in the direction of 3D live navigation. The display of live route and construction needs to be supported by a larger screen in order to give full play to the advantages and characteristics of live navigation.

However, the navigator with large screen also has a disadvantage, which must be said, that is, it occupies too much space, especially the driver's field of vision. At present, most of the friends who use the vehicle navigator put the navigator in the lower center of the front windshield. When the scale of the navigator is too large, it is bound to affect the driver's vision in front. In addition, when the screen is too large, it will attract and disturb the driver's attention and bring certain danger to driving safety.

The size of the navigator screen also has a very important impact on the function of the navigator, which is the entertainment function. Now the navigator has more and more functions. From the early stage of only supporting picture browsing, to video broadcasting, game functions, and now using the Android operating system, it is an extension of the navigator's entertainment functions. The navigator with large screen scale can bring good results to users when broadcasting video files and playing games. And now many on-board navigators have been applied to the Android operating system in the market, providing more entertainment and Internet functions for the navigator. Therefore, the advantages of on-board navigators with large screen scale in entertainment functions should surpass the traditional general scale navigators.

In addition to navigation and entertainment, the size of the on-board navigator also determines the portability of the on-board navigator. Now, another identity of many on-board navigators is portable PND. When the scale of the product becomes larger, the portability of the navigator will be greatly reduced. Because the navigator is not a tablet computer and mid after all, accurate and fast navigation is the primary work of the on-board navigator.

Article source: Jiangmen vehicle navigator http://ti-e.com.cn