Optical design for a see-through head-mounted display with high visibility

Area of Science:

• Optics
• Display Technology
• Human-Computer Interaction

Background:

• See-through head-mounted displays (HMDs) often struggle with balancing optical efficiency between real and virtual images.
• Limited visibility in current HMDs restricts their practical application in daily life.

Purpose of the Study:

• To present a novel optical design for see-through head-mounted displays that significantly enhances visibility.
• To overcome the limitations in optical efficiency balance inherent in existing HMD designs.

Main Methods:

• The proposed design utilizes a light guide plate with specialized triangular microstructures.
• This configuration optimizes the optical path for virtual image projection.

Main Results:

• The optical efficiency of the virtual image surpasses that of the real image.
• Achieved a visibility increase up to 22, a substantial improvement over previous designs.
• Demonstrated suitability for daily application due to enhanced visual performance.

Conclusions:

• The novel optical design effectively enhances the visibility of see-through head-mounted displays.
• The use of a light guide plate with triangular microstructures provides a viable solution for high-visibility HMDs.
• This advancement paves the way for more practical and widespread adoption of HMD technology.