Display system and head-up display

Abstract

The embodiment of the invention provides a display system and a head-up display. The display system comprises a first imaging module, a second imaging module and a reflection module. The first imaging module comprises a first projection light machine and a first pupil expanding unit, the second imaging module comprises a second projection light machine and a second pupil expanding unit, the light-in side of the first pupil expanding unit is arranged on the light-out side of the first projection light machine, and the light-in side of the second pupil expanding unit is arranged on the light-out side of the second projection light machine; the reflection modules are arranged on the light emitting side of the first pupil expanding unit and the light emitting side of the second pupil expanding unit, in the display system, the virtual image distance can be adjusted by adjusting the posture of the imaging module or the projection light machine, three-dimensional display of a virtual image can be achieved, the spatial stereoscopic impression is improved, and in addition, the display effect is improved. When the display system is applied to the head-up display, the size of the head-up display can be reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of head-up display, and in particular, to a display system and a head-up display. Background technique [0002] The Head Up Display (HUD) system is usually used in cars. It can project the information on the car dashboard and navigation information to the human eyes, so that the driver can see the actual driving conditions without looking down. information needed to enhance the driver's driving experience and safety. For example, when HUD is used as a vehicle-mounted projection device to enhance the safety of assisted driving, it can ensure that the driver can see many driving information such as vehicle speed and navigation without leaving the surrounding environment. [0003] At present, the HUD products on the market can only generate virtual images at a fixed position a few meters away, and the virtual image distance (Virtual image distance, VID) is difficult to adjust and chan...

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Problems solved by technology

[0003] At present, the HUD products on the market can only generate virtual images at a fixed position a few meters away, and the virtual image distance (Virtual image distance, VID) is difficult to adjust and change in real time according to different scenarios; moreover, the virtual image is a two-dimensional plane, lacking space The three-dimensional effect cannot match the actual object; in addition, the existing HUD is also very bulky, occupying a lot of space in the car

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