Near-to-eye display device and preparation method

Abstract

The invention discloses a near-to-eye display device and a preparation method. The display device comprises an image source, a polarization light splitting assembly, a quarter-wave plate, a reflectorassembly and a prism main body, the polarization beam splitting assembly, the quarter-wave plate and the reflector assembly are integrated in the prism main body; the image source is used for emittinga first light beam; the polarization light splitting assembly is located on a propagation path of the first light beam and used for selecting the first light beam as a first polarization light beam;the quarter-wave plate and the reflector assembly are sequentially located on a propagation path of the first polarized light beam, the first polarized light beam passes through the quarter-wave plateand then is reflected by the reflector assembly to form a second polarized light beam after passing through the quarter-wave plate, and the polarization direction of the second polarized light beam is orthogonal to the polarization direction of the first polarized light beam; the polarization beam splitting assembly is further located on the propagation path of the second polarization beam and isat least used for reflecting the second polarization beam to the user's eyes. The problems that a near-to-eye display device is complex in structure, system integration is not facilitated, and the wearing performance is affected are solved.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular to a near-eye display device and a manufacturing method. Background technique [0002] Augmented reality technology uses a near-eye display solution to superimpose virtual images on real scenes, providing users with an immersive and interactive experience. In addition to entertainment, it is of great significance in the fields of industry and medicine. Existing display solutions include solutions such as coaxial prisms, arrayed optical waveguides, and holographic gratings. However, there are at least the following problems in the above related technologies: the existing near-eye display devices for augmented reality usually use a side display device, and use a side catadioptric system to collimate and couple the light emitted by the display device into an optical flat panel to realize Wide viewing angle viewing. Such systems are generally bulky, heav...

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Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a near-eye display device and a preparation method, which solves the problem that the near-eye display device in the existing technology is large in size, heavy in weight and complex in structure, which is not conducive to system integration and affects the wearability of the near-eye display device. technical problem

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