Near-eye display device

Abstract

The invention provides a near-eye display device. The near-eye display device comprises a planar waveguide array display device, an infrared emitting device, an infrared photographing module and an infrared reflection-diffraction element, wherein the infrared reflection-diffraction element can be used for converting a plane wave into a spherical wave; the planar waveguide array display device comprises a display output light group, a conductive substrate and at least one inclined coupling surface; the inclined coupling surface is covered with a light splitting film capable of transmitting andreflecting a visible light waveband; the infrared reflection-diffraction element is arranged on one side, close to or far from a human eye, of the conductive substrate; a reflection-emergent optical axis of the infrared reflection-diffraction element is substantially parallel to or coaxial with an optical axis of the infrared photographing module; and infrared light emitted by the infrared emitting device covers the range of the human eye, and a human eye virtual image formed after infrared light reflected by the human eye is reflected and diffracted by the infrared reflection-diffraction element is captured by the infrared photographing module. By utilizing the near-eye display device, a clear opposite eye image can be obtained when the device does not directly face towards the human eyes, the observation of the user on the visual effect of a virtual image is not interfered, and the near-eye display device can be applied to eyeball tracking, iris recognition and the like.

Description

technical field [0001] The present invention relates to the technical field of augmented reality, in particular, to a near-eye display device. Background technique [0002] Augmented Reality (AR, Augmented Reality) is a technology that uses virtual objects or information to augment real scenes, and is widely used in scientific research, military, industry, games, video, education and other fields. With the development and wide application of emerging technologies, security issues such as the protection of personal privacy and payment usage will also be highlighted. Iris recognition for identity authentication is considered to be a biotechnology second only to DNA recognition. Applying iris recognition technology to near-eye display devices solves the identity verification problems of users using display devices, transaction payment, etc., which is a technological development trend. [0003] The iris recognition module requires that the camera that captures the human eye ima...

AI Technical Summary

Problems solved by technology

And when the near-eye display device is augmented reality glasses, the camera is directly facing the human eye and will block the user's line of sight, which is not convenient for the user to observe the external environment.

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