Wearable display system

Abstract

A wearable display system having a display panel for outputting a signal processed a predetermined way is provided. The system includes: at least one waveguide for guiding the propagation of at least one signal output from at least one display panel; a plurality of gratings for diffracting the at least one signal propagating through the at least one waveguide; and at least one magnifying lens movable along a lengh of the waveguide, for magnifying the at least one signal diffracted by the grating. According to the system, a more light weight and compact wearable display system can be realized by minimizing the number of optical components, and the complexity and cost in manufacturing a display system can be reduced. In addition, a display system can be produced on a large scale by incorporating a waveguide, gratings and an eyepiece into one single body, and further, chromatic aberration can be removed by conjugate gratings.

Description

technical field [0001] The present invention relates to personal display systems, in particular wearable display systems capable of transmitting display signals through eyeglass or goggle type optics for display in the vicinity of the user's eyes. Background technique [0002] Traditional optical display systems used in military, medical, or personal entertainment—often referred to as head-mounted displays (HMDs)—have been designed to allow users to view video through glasses, goggles, or helmet-type wearables Signal. These personal display systems allow users to receive video information while moving from place to place. FIG. 1 shows an example of the appearance of an HMD. Referring to FIG. 1 , the HMD is composed of general glasses 100 and an image driving unit 110 attached to the center of the glasses 100 . The drive unit 110 is bulky, heavy and has an ugly appearance. The reason for the large volume and high weight of the image driving unit...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to manufacture a general HMD wearable display system, that is, it requires a lot of effort and time

Additional difficulties in aligning lenses and components may occur even if the lenses and components are designed with precision

Moreover, a dedicated eyepiece lens must be additionally designed to eliminate the chromatic aberration of the color signal

Therefore, typical HMD wearable display systems are too expensive to manufacture

In addition, the traditional optical system is bulky and heavy due to the use of multiple optical devices, so it is inconvenient for the user to wear the HMD

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