Dynamic Barrier Slot for Multi-User 3D Display
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Solution Overview
Problem
Current 3D image providing technologies are limited in their ability to display different images simultaneously to multiple users in a full-screen state using a single apparatus, often resulting in a narrow effective visual field and requiring separate displays for each user.
Innovation Solution
An image providing apparatus and method that acquires user locations using stereoscopic or depth cameras, adjusts the barrier screen's position, size, and movement based on user positions, and generates and outputs images tailored to each user's viewpoint, allowing multiple users to view different images in a full-screen format without resolution deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a parallax barrier or lenticular screen method is used for 3D image display, then the manufacturing simplicity and ease of implementation are improved, but the effective visual field becomes narrow and only one person can use the method
Solution Approach 1:
The barrier slot is made movable rather than fixed, allowing it to shift positions dynamically. The control unit adjusts the barrier slot position based on user location information to direct different 3D images to different users, transforming a static single-user system into a dynamic multi-user system
Solution Approach 2:
The display screen is divided into multiple regions, and the barrier slot is segmented to create separate viewing paths. By controlling which portion of the barrier slot is transparent at any given time, the system can direct different images to different users simultaneously
2Device complexity
If the barrier slot position is fixed, then the device complexity is reduced, but the ability to provide different images to multiple users simultaneously is limited
Solution Approach 1:
The barrier slot incorporates movement capability controlled by a control unit that receives user location information and adjusts the barrier slot position accordingly, enabling the system to adapt to different user positions and provide personalized 3D images
Solution Approach 2:
The system uses user location information as feedback to dynamically adjust the barrier slot position. The control unit processes location data and modifies the barrier configuration in real-time to ensure optimal image delivery to the current user position
3Adaptability or versatility
If multiple images are displayed using picture-in-picture or double screen method, then multi-display capability is improved, but the full-screen state is compromised and image quality deteriorates
Solution Approach 1:
The display screen is segmented into different regions that can be independently controlled. By using the movable barrier slot to direct light to specific regions, the system can provide different full-screen images to different users without compromising image quality or requiring multiple physical displays
Solution Approach 2:
Instead of adding more displays horizontally (picture-in-picture) or vertically (double screen), the system uses the third dimension of space by moving the barrier slot to create separate viewing paths, allowing multiple full-screen images to be displayed simultaneously without quality loss
Data Source
AI summary
An image providing apparatus includes: a user location acquisition unit which acquires locations of users; a barrier adjustment unit which adjusts at least one of a space between a display and a barrier screen, a size of a barrier slot, and a left/right movement amount of the barrier slot at least based on a user's location of at least one of the users; an image generation unit which generates an image of which a view point region is adjusted, by the barrier adjustment unit, to the user's location; and an image output unit which outputs the generated image on a display.