Gaze Guiding Unit for View-Dependent Display Devices
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Solution Overview
Problem
Conventional view-dependent display devices fail to effectively present information to users as they can only display images within the user's gaze direction, leading to missed information when the user looks away from the intended image.
Innovation Solution
A display device with a gaze guiding unit that focuses light between the pupil and retina, guiding the user's gaze to a specific guide point by displaying guide images that shrink, vary in luminance or density, or indicate direction, ensuring the user can see intended information regardless of their gaze direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If light is focused on the retina to enable users to see images, then image visibility is improved, but users can only see images within their gaze direction leading to information loss
Solution Approach 1:
The system performs preliminary actions by displaying guide images before the main information images. These guide images are positioned to attract user gaze in advance, ensuring that when information images appear, users are already looking at the correct locations. This preliminary gaze guidance resolves the contradiction by preparing users to see information without requiring them to scan the entire display area.
Solution Approach 2:
Guide images serve as intermediaries between the information images and the user's gaze. Rather than directly presenting information that requires precise gaze alignment, the system uses guide images as mediators to naturally attract and direct user attention. This intermediary approach allows information to be presented effectively even with the constraint of gaze-dependent visibility.
2Loss of information
If guide images are displayed to attract user gaze, then information presentation is improved, but display device complexity increases
Solution Approach 1:
The system applies local quality by making only specific portions of the display (guide image regions) have special properties rather than the entire display. Guide images are localized elements with specific visual characteristics (brightness, position, animation) that attract gaze, while the rest of the display maintains normal information presentation. This localized approach minimizes added complexity while achieving effective gaze guidance.
Solution Approach 2:
The system uses parameter changes in guide images (brightness, position, size, animation speed) to attract user gaze without fundamentally changing the display device architecture. By manipulating visual parameters of guide images, the system achieves effective gaze guidance using existing display capabilities, avoiding the need for complex additional hardware or mechanisms.
3Quantity of substance
If multiple images are displayed to provide comprehensive information, then information completeness is improved, but users cannot see all images simultaneously leading to missed information
Solution Approach 1:
The display content is segmented into two functional types: guide images and information images. Guide images are segmented elements whose sole purpose is to attract gaze, while information images contain the actual content. This segmentation allows multiple information images to be displayed simultaneously at different locations, with corresponding guide images directing users to each location sequentially or simultaneously, ensuring all information becomes visible despite gaze constraints.
Solution Approach 2:
The system adds a temporal dimension to information presentation by sequencing the appearance and guidance of multiple images. Instead of requiring all images to be visible simultaneously in space, the system uses time-based guidance where guide images appear, attract gaze to specific locations, then information images are presented. This temporal dimension allows comprehensive information delivery across multiple locations without requiring users to see all images at once.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures users can properly see information by guiding their gaze to the intended image, reducing discomfort and improving information presentation efficiency.
Implementation Method 1
a display device configured to focus light for displaying an image on a position between a pupil and a retina of a user
Data Source
AI summary
A display device is configured to focus light for displaying an image on a position between a pupil and a retina of a user thereby to let the user see the image. Namely, the display device is a view-dependent display device. A gaze guiding unit of the display unit is configured to present information to guide gaze of the user to a guide point that is a position to which the gaze of the user is to be directed. Guiding the gaze of the user in this way makes it possible to let the user appropriately see the information presented by the display device.