Microsoft is at the forefront of the augmented reality revolution, but people are generally complaining that the actual coverage field of HoloLens is too small (less than 40 degrees), making the $3,000 marketing strategy misleading. Now that Microsoft has proposed a potential solution to this problem, it seems unlikely that it will reduce the cost of the device.
The patent document introduces:
Display technologies that can be used in near-eye displays/head-display devices include waveguide-based, birdbath, light field, and other suitable display configurations. However, each type of display can provide different advantages and disadvantages. For example, waveguide-based and birdbath devices provide high-resolution images with high sharpness and high contrast. But when superimposed on real-world objects, only a narrow field of view with weak or even no depth hints and low occlusion effects (observed through a see-through display) can be provided. A light field display such as a spotlight mode display can provide an image with a wide field of view with appreciable depth hints and a closed portion of the real world environment (viewed through a see-through display). However, the resolution, contrast and sharpness of such a light field display may be too low, and the image quality is lower relative to the waveguide/birdbat configuration.
HoloLens uses a waveguide display that provides a clear, high-resolution, but small field of view image, while the Unicorn Magic Leap is designed to use lightweight technology to provide greater visibility and a completely opaque external world, but with insufficient images Sharp, low resolution.
Now Microsoft proposes to combine the advantages of both technologies by stacking two types of displays.
The patent documents explain that they recognize the complementary features of the above display configurations and provide systems and methods that combine two types of display configurations to selectively present virtual objects by one or both of them based on features of the virtual object. For example, in a display system having two types of display configurations, virtual objects of a user's viewing space peripheral area may be displayed via a display configuration having a wide field of view. The specific narrow field of view (high definition) display configuration presents virtual objects within the user's viewing space, and the low resolution/quality image produced by the wide field of view display configuration for the peripheral area is at an acceptable level (eg, when the user When not viewing the virtual object directly). Other features of this method of selectively presenting virtual objects are described in more detail below.
The two displays can also be utilized in a variety of ways, such as displaying only a portion of the elements on one display, or the ability to shade the background using a light field display, and then adding detail through the waveguide display.
This combination can increase the field of view from 40 degrees to 80-90 degrees, and can also improve the overall image quality, but 87 suspects this will increase the complexity of the system and increase the cost of the equipment.
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