Automobile information display method and device

Abstract

The invention discloses an automobile information display method. The method is characterized in that information to be displayed is collected, the information to be displayed is displayed on a spatial light modulator in a text or image mode, illuminating light irradiates the spatial light modulator, an image of the spatial light modulator is projected to a transmission-type projection screen through a first projection imaging lens, a first cylindrical mirror, a second cylindrical mirror and a second projection imaging lens. The rear face of the transmission-type projection screen is tightly attached to a plane of a plano-convex lens used as a field lens, a concave mirror is arranged at the back of the plano-convex lens, the inner surface of the concave mirror is coated with a reflecting film, and reflected light forms an amplified virtual image at the back of the concave mirror, and therefore the automobile information is displayed. The concave mirror is arranged on the inner side of a front windshield of an automobile. The displayed information is in the visual field right ahead of a driver, therefore, when the driver observes the automobile information, the driver does not need to look down or enable the eyes to focus near the information, and driving safety is ensured.

Description

technical field [0001] The invention relates to a car accessory, in particular to a method and device for displaying car information. Background technique [0002] With the rapid development of the automobile industry, more and more high-tech is applied to the automobile system, which brings a lot of convenience to people's life, among which automobile safety driving is an important research content that people have been paying attention to. When the vehicle is moving forward at a speed of 120 kilometers per hour, the vehicle will travel 33 meters forward in just 1 second when the driver leaves his sight to check the speedometer. In order to avoid the danger of this 1 second, the latest research attempts to display the current vehicle information (such as speed, fuel consumption, warning information of the driving assistance system, GPS navigation information, etc.) The driving safety of the vehicle plays an auxiliary role. [0003] However, the current studies all use the...

AI Technical Summary

Problems solved by technology

This method can image in front of the driver, but its imaging is at the glass of the car. Studies have shown that in order to focus on a specific object in the field of vision, the eyes will automatically focus, so when people focus on the car When it is on the windshield, the human eye will automatically switch to a close-up state, and it is difficult to notice distant objects at the same time

In addition, in the above technical solution, the display information imaged on the glass is translucent, which will affect people's observation of the front view.

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