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Head-worn display device

A head-mounted display and display device technology, applied in optical components, instruments, optics, etc., to achieve the effect of increasing the field of view, high transparency requirements, and meeting the requirements of large field of view

Active Publication Date: 2015-11-25
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current head-mounted display device is difficult to meet the requirements of high transparency and large field of view at the same time

Method used

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Embodiment Construction

[0024] As mentioned in the background section, it is difficult for current head-mounted display devices to meet the requirements of high transparency and large field of view at the same time.

[0025] In view of this, an embodiment of the present invention provides a head-mounted display device, including: an image source; an optical waveguide located in the light transmission direction of the image source; an optical structure located in the direction of the light emitted by the light waveguide; wherein, the The optical structure includes: a first state in which the direction of the light emitted by the light waveguide is changed, an angle of light emitted by the light waveguide is increased, and a second state in which the direction of the light emitted by the light waveguide is not changed.

[0026] When the head-mounted display device provided by the embodiments of the present invention is applied to enhanced display, the optical structure can be controlled to be in the sec...

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Abstract

The embodiment of the present invention discloses a head-worn display device. The head-worn display device comprises an image source; an optical waveguide positioned in the light transmission direction of the image source; and an optical structure positioned in the outgoing light direction of the optical waveguide. The optical structure comprises a first state for changing the outgoing light direction of the optical waveguide and increasing the emergence angle of the outgoing light, and a second state for not changing the outgoing light direction of the optical waveguide. In this way, when the head-worn display device is applied to an enhanced real display, the optical structure is controlled to be in the second state. At this time, the light emitted onto the optical structure is transmitted through the optical structure, so that the transparency of the head-worn display device is improved. The high transparency requirement on the enhanced real display can be met. When the head-worn display device is applied to an enhanced virtual display, the optical structure is controlled to be in the first state. At this time, the light emitted onto the optical structure is refracted through the optical structure, so that the field-of-view of the head-worn display device is expanded. The large field-of-view requirement on the enhanced virtual display can be met.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a head-mounted display device. Background technique [0002] With the development of science and technology, head-mounted display devices are more and more widely used. When the head-mounted display device is applied to augmented reality display, the head-mounted display device needs to have high transparency and not deflect the light entering the human eye from the outside; when the head-mounted display device is applied During virtual display, the head-mounted display device needs to have a larger field of view, so that the user has a strong sense of immersion. However, it is difficult for the current head-mounted display device to meet the requirements of high transparency and large field of view at the same time. Contents of the invention [0003] In order to solve the above technical problems, an embodiment of the present invention provides a head-mounted displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0101G02B27/0172G02B2027/0123
Inventor 李勇
Owner LENOVO (BEIJING) LTD
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