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virtual reality display device

A display device, virtual reality technology, applied in the directions of instruments, optics, lenses, etc., can solve the problems of stray light, affect the image quality, detract from the user's visual experience, etc., and achieve the effect of improving quality and reducing stray light.

Active Publication Date: 2020-12-22
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, some surfaces of the optical components are prone to cause some light from the display not to follow the expected direction and path, but to be reflected in unintended directions, causing stray light
Stray light will affect the quality of the image seen by the user, detracting from the user's visual experience

Method used

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Examples

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Embodiment Construction

[0039] figure 1 It is a schematic cross-sectional view of a virtual reality display device according to an embodiment of the present invention. Please refer to figure 1 , the virtual reality display device 100 of this embodiment includes at least one display 110 ( figure 1 Take two displays 110a and 110b as an example) and at least one optical component 120 ( figure 1 In the figure, two optical components 120a and 120b are taken as an example). The display 110 is adapted to provide an image beam 112 to the left eye 50a or the right eye 50b of the user. The optical component 120 is disposed on the transmission path of the image beam 112 and is located between the display 110 and the user's left eye 50a or right eye 50b. In this embodiment, the display 110a and the display 110b respectively provide two image light beams 112a and 112b, and the image light beam 112a and the image light beam 112b are transmitted to the user's left eye 50a and right eye respectively through the ...

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Abstract

The invention provides a virtual reality display device, which comprises at least one display and at least one optical module. The display is adapted to provide an image light beam to a left or righteye of a user. The optical module is arranged on a transmission path of the image beam, and is positioned between the display and the left or right eye of the user. The optical module comprises a first Fresnel lens, wherein the first Fresnel lens comprises a plurality of annular structures surrounding an optical axis thereof, each of the annular structures has an effective refracting surface and anon-optical effective surface positioned between the optical axis and the effective refracting surface, and each effective refracting surface is connected with the corresponding non-optical effectivesurface. An average inclination angle of the first Fresnel lens relative to the optical axis on a plurality of non-optical effective surfaces in the central region is smaller than an average inclination angle of the first Fresnel lens relative to the optical axis on a plurality of non-optical effective surfaces in the edge region.

Description

technical field [0001] The invention relates to a display device, in particular to a virtual reality display device. Background technique [0002] With the advancement of display technology, in order to pursue an immersive experience, users are no longer satisfied with just viewing flat images. In order to provide users with more realistic and three-dimensional visual entertainment, virtual reality (VR) has become a new trend in display technology. Virtual reality can simulate a three-dimensional virtual scene to provide users with visual and other sensory experience, and can watch images in three-dimensional or two-dimensional space in real time, and even further interact with virtual images. [0003] A common virtual reality display device is, for example, a head mounted display (HMD), which can be worn on the user's head. At this time, the display in the virtual reality display device is quite close to human eyes. In order to let the human eye see the image displayed o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01G02B3/08
CPCG02B3/08G02B27/0172
Inventor 邱奕荣石维国
Owner ACER INC
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