Image segmentation type virtual image display device

Abstract

The invention discloses an image segmentation type virtual image display device comprising a display unit, a refraction element and a virtual image generation module; the refraction element is positioned between the display unit and the virtual image generation module. Firstly, the display unit generates at least one image, and the image is refracted by the refraction element and segmented into a plurality of sub-images. Finally, the light of the sub-images is reflected by the virtual image generation module so as to generate one large area virtual image or a plurality of amplified virtual images. The image segmentation technical method can be employed to reduce the element size of the virtual image generation module, and different display information is provided.

Description

technical field [0001] The present invention relates to a display device, in particular to an image split virtual image display device. Background technique [0002] Head Up Display (HUD) is the earliest flight aid instrument implemented on aircraft, which allows the driver to see the information on the instrument without looking down, so as to avoid interruption of attention and loss of state awareness ( Situation Awareness), because the use of the head-up display device is not only convenient but also can improve flight safety, and can be used on any kind of mobile vehicle, not only civil aircraft, but also cars and ships. [0003] Most of the prior art or existing products belong to a single optical path system, which can only display information within a fixed range. The screen is small and can only provide simple speed information, small arrow guidance system or vehicle information. In addition, in 2012, Audi announced the concept prototype of a head-up display system ...

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Problems solved by technology

[0003] Most of the prior art or existing products belong to a single optical path system, which can only display information within a fixed range. The screen is small and can only provide simple speed information, small arrow guidance system or vehicle information.

In addition, in 2012, Audi announced the concept prototype of a head-up display system with a large area display at the Consumer Electronics Show (CES). Three sets of optical modules are used to project three sets of images to provide different display information to meet different uses. demand, but with the increase of optical-mechanical modules, the required installation space and cost will also increase

In addition, U.S. Patent No. 7,508,356 uses a reflective structure to cut images to achieve the function of dividing two groups of images, and uses four-sided mirrors to cut the optical path. Therefore, it requires many optical components and is quite large in size; in summary, At present, the head-up display system can achieve the function of displaying multiple sets of images. Because the number of optical components cannot be reduced, the volume, space and cost of the overall device cannot be effectively reduced.

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