See-Through Glasses Display

Abstract

The present invention relates to a display device, and specifically provided is a transmissive glasses display. Aiming at the defects that the existing transmissive glasses display of a reflection waveguide device has low efficiency of light energy utilization and is uncomfortable to wear because of overlarge waveguide thickness, a structure comprising a light guide plate, and an incident reflection device (3) and at least one display reflection device (4, 5, 6) which are arranged in the light guide plate is formed by taking some reflection films having very high reflectivity at the light wave band in which an incident image is located and very low reflectivity at other light wave bands as reflection devices, and is used for conducting total reflection propagation on the incident image between two parallel surfaces (1, 2) inside the light guide plate after the incident image is reflected by the incident reflection device and conducting emergent display on same after the incident image is reflected at the at least one display reflection device. The efficiency of light energy utilization of a glasses display can be improved, the optical performance is stable, and the structure is made compact at the same time, thereby reducing the overall weight of a system.

Description

technical field [0001] The invention relates to a display device, in particular to a see-through glasses display. Background technique [0002] A head-mounted display is an image display device worn on the head, and is usually placed on the user's head with a hat, a helmet, or a spectacle frame as a support. It mainly consists of four parts: image information display source, circuit control system, optical imaging system, and fixed support structure. It uses an optical system to project the image emitted by the microdisplay in front of people's eyes, forming a magnified virtual image. Head-mounted displays are new products in modern portable mobile display devices, and are widely used in image display of augmented reality, virtual reality, and stereoscopic display. [0003] As the most portable new type of wearable display device among head-mounted displays, glasses displays can be used not only in military affairs, but also in industry, medical treatment and daily life, e...

AI Technical Summary

Problems solved by technology

On the one hand, such a structure has a low light energy utilization rate due to the use of a semi-transparent and semi-reflective film. On the other hand, the size of the reflective device is proportional to the field of view and the moving frame of the eye, which will force the thickness of the waveguide to increase, making the entire device The quality and volume of the product are increased, and it is uncomfortable to wear

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