SEE-THROUGH HEAD-MOUNTED DISPLAY - BOE TECHNOLOGY GROUP CO LTD

Title:

SEE-THROUGH HEAD-MOUNTED DISPLAY

Document Type and Number:

WIPO Patent Application WO/2021/254320

Kind Code:

A1

Abstract:

A see-through head-mounted display, comprising: a first reflection mirror (110), an objective lens (210), a second reflection mirror (120), a microdisplay (300), a beam splitter (400), a first polarizer (510), a second polarizer (520), a light modulator (600), an eyepiece (220), and a third reflection mirror (130). The first reflection mirror (110) reflects a real image to the objective lens (210). The objective lens (210) zooms out the real image. The second reflection mirror (120) reflects the real image from the objective lens (210) to the beam splitter (400). The microdisplay (300) generates a virtual image and outputs the virtual image to the beam splitter (400). The beam splitter (400) reflects the real image and overlaps the real image with the virtual image, so as to generate a combined image. The first polarizer (510) allows the real image to have a first polarization state. The second polarizer (520) allows the virtual image to have a second polarization state. The light modulator (600) is used for modulating the combined image, so that the see-through head-mounted display can be switched between any two of various display modes. The eyepiece (220) zooms in the combined image. The third reflection mirror (130) reflects the zoomed in combined image to the eyes of a user.

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Inventors:

MA XINLI (CN)
XU TIANYU (CN)
LIU BINGYANG (CN)
QIAN XUEQIANG (CN)
CHEN DONGCHUAN (CN)
WANG KAIXUAN (CN)

Application Number:

PCT/CN2021/100073

Publication Date:

December 23, 2021

Filing Date:

June 15, 2021

Export Citation:

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Assignee:

BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)

International Classes:

G02B27/01; G02B27/28; G02F1/1343

Foreign References:

CN111580280A	2020-08-25
CN107065196A	2017-08-18
CN108873330A	2018-11-23
CN208847961U	2019-05-10
CN107167921A	2017-09-15
CN108107579A	2018-06-01
US20200125166A1	2020-04-23

Attorney, Agent or Firm:

TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)

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