Patent ID: 11860375
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Optics (Instruments)
Classification: CPC A  G | IPC G

Claim 0:
1. A virtual reality display device, comprising: a main lens, a semi-reflective lens, a first display screen, a second display screen, a zoom assembly and an eye tracking camera,
wherein the main lens is arranged in front of the first display screen and perpendicular to a first direction; the first direction is a propagation direction of light emitted from the first display screen;
the semi-reflective lens is arranged between the main lens and the first display screen, and an inclination angle is formed between the semi-reflective lens and the first direction;
the eye tracking camera points to an eyeball position when the virtual reality display device being worn;
the second display screen faces the semi-reflective lens;
the zoom assembly is arranged on a front side of the second display screen, and light emitted from the second display screen passes through the zoom assembly, light passing through the zoom assembly is incident on the semi-reflective lens, reflected by the semi-reflective lens and then propagates along the first direction;
the zoom assembly has at least two focal lengths; and
the second display screen is configured to display an image based on an eyeball focus position detected by the eye tracking camera, and the zoom assembly is configured to adjust the focal length based on the eyeball focus position.