Wearable Information Projection Beyond Direct Line of Sight
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Solution Overview
Problem
Existing wearable terminals, such as glasses-type devices, are limited in the area they can display information, often failing to convey the importance of objects outside a user's direct line of sight, even when those objects are more important.
Innovation Solution
An information display system that includes wearable terminals equipped with sensors to detect user posture and line of sight, projecting images onto designated areas based on this information, using methods like blinking or highlighting to draw attention to important objects outside the direct line of sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If information is displayed only on the lens surface of glasses-type terminal, then the display area is limited, but the user can only see information within direct line of sight
Solution Approach 1:
The patent transitions from two-dimensional lens surface display to three-dimensional spatial projection by projecting images onto surfaces in the user's surrounding environment. This allows information to be displayed beyond the limited lens area and extends visibility to objects outside the direct line of sight by utilizing spatial dimensions in the environment.
Solution Approach 2:
The system uses projection surfaces in the environment as intermediaries to convey information. Instead of directly displaying on the lens, the terminal projects images onto surrounding surfaces that the user can perceive, using these environmental surfaces as mediators to transmit information about objects outside the direct view.
2Ease of operation
If wearable terminal displays information within viewing angle range, then the display is focused on current attention object, but important objects around the user are not highlighted
Solution Approach 1:
The system applies different display qualities to different spatial locations by projecting images with varying characteristics (such as blinking or highlighting) onto specific surfaces in the environment. This allows important objects to be emphasized with special visual qualities while maintaining normal display for other areas, enabling the user to distinguish importance levels of surrounding objects.
Solution Approach 2:
The patent employs visual changes including blinking and highlighting effects to indicate the importance of objects. These dynamic visual transformations help the user quickly identify and prioritize important objects in the surrounding environment without needing to focus attention on each object individually.
3Area of stationary object
If projection is used to display information in surrounding environment, then the display area is expanded, but the system complexity increases
Solution Approach 1:
The wearable terminal integrates multiple functions including imaging, projection, and environmental sensing into a single device. This multi-functionality allows the system to achieve expanded display capabilities without proportionally increasing complexity, as the same hardware components serve multiple purposes in the projection and display process.
Data Source
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AI summary
An information display system includes an acquisition unit (401, 501, 601, 701, 802) to acquire detection information including information on a posture of a user and information on a line of sight of the user, a projection unit (501, 601, 507, 613, 807) to project an image onto a projection destination located in a projection direction with respect to the user, and a projection control unit (401, 501, 601, 701, 803, 803a, 803b) to cause the image to be projected onto the projection destination based on the detection information and information on the projection direction.