Vehicle-mounted head-up display screen, brightness control method and manufacturing method

Abstract

The invention discloses a vehicle-mounted head-up display screen, a brightness control method and a manufacturing method, the display screen comprises a control system and a display system, the control system controls the brightness and position of a projection display image of the display system, the display system comprises a TFT module, the TFT module comprises a rear plate module, and the rearplate module comprises a light insulation layer, a soaking layer and rear plate glass; the brightness control method comprises the following steps: setting photosensitive information as an environment brightness parameter; and comparing the photosensitive information with a second threshold value to obtain an ambient brightness parameter;. The manufacturing method comprises the steps of: adoptingGIP wiring for a TFT control panel of the vehicle-mounted head-up display screen; arranging a negative temperature coefficient material in the TFT control panel target material; and arranging a soaking layer on the rear side of rear plate glass of a TFT module of the vehicle-mounted head-up display screen. By implementing the invention, the electron mobility is improved, the temperature of the TFT is prevented from being too high, the influence of the photoelectric effect on the TFT is reduced, the brightness is controlled, and the working difficulty of the TFT module is reduced.

Description

technical field [0001] The invention relates to the technical field of display screens, in particular to a vehicle-mounted head-up display screen, a brightness control method and a manufacturing method. Background technique [0002] The head-up digital display function of the HUD on the car uses the principle of optical reflection to project important driving information such as tire pressure, speed and rotation speed on the front glass of the cockpit, so that the owner can see important information clearly without looking down when driving. Normally, car owners need to shift their sight from the road to the dashboard between observing the nearby instruments and observing the distant road. Because the brightness inside the car is low and the road outside the car is bright, the eyes need to go through the process from bright to dark and then to bright , the eyes need to be adjusted, the HUD head-up display can avoid this situation, even in the face of an emergency, it allows ...

AI Technical Summary

Problems solved by technology

[0006] The problem of the existing vehicle-mounted head-up display is that the work difficulty of the TFT display is greatly increased if the brightness requirement is exceeded, and at the same time, the vehicle-mounted head-up display cannot achieve normal display due to the greatly reduced electron mobility speed under outdoor extreme cold conditions.

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