Segmented Super-Resolution Display for Gaze-Directed Foveal Imaging
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Solution Overview
Problem
Existing near eye display systems struggle to provide high-resolution imagery within the central vision of a user while maintaining lower resolution in the peripheral vision, leading to reduced visual acuity and immersive experience.
Innovation Solution
A display system utilizing a dual state liquid crystal panel that alternates between reflective and transparent states, combined with a projector and display panel, dynamically adjusts image resolution based on gaze direction to position high-resolution imagery within central vision and lower resolution imagery within peripheral vision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single high-resolution display is used across the entire field of view, then visual acuity in central vision is improved, but device complexity and manufacturing difficulty increase significantly
Solution Approach 1:
The display system is segmented into multiple regions: a first region (central vision area) that displays high-resolution imagery and a second region (peripheral vision area) that displays lower-resolution imagery. This segmentation allows the system to provide high visual acuity where needed while reducing overall system complexity and resource requirements.
Solution Approach 2:
Different quality levels are applied to different regions of the display. The first region corresponding to central vision receives high-resolution imagery with superior visual acuity, while the second region corresponding to peripheral vision receives lower-resolution imagery. This local quality approach optimizes visual experience in critical areas while reducing overall system demands.
2Reliability
If high-resolution imagery is provided across the entire display area, then visual immersion is improved, but pixel density requirements and manufacturing difficulty increase
Solution Approach 1:
The display area is divided into a first region for high-resolution central vision content and a second region for lower-resolution peripheral content. This segmentation maintains visual immersion in the critical central area while reducing the overall pixel density requirements and manufacturing complexity of the complete display system.
Solution Approach 2:
High-quality imagery is localized to the first region where it provides the greatest benefit to visual immersion, while the second region uses lower quality imagery. This approach maintains reliable visual immersion experience where users focus attention while reducing manufacturing demands.
3Measurement precision
If the display dynamically adjusts resolution based on gaze direction, then visual acuity optimization is improved, but device complexity and control system requirements increase
Solution Approach 1:
The display system dynamically adjusts which region receives high-resolution imagery based on detected gaze direction. The first region is dynamically positioned to correspond to the user's central vision area, allowing visual acuity optimization to track eye movements. This dynamic adaptation maintains optimal visual acuity without requiring the entire display to operate at high resolution continuously.
Solution Approach 2:
The system uses gaze detection feedback to determine where the user is looking and dynamically positions the first high-resolution region accordingly. This feedback mechanism allows the display to optimize visual acuity in the relevant area while maintaining simpler control requirements compared to full-field high-resolution displays.
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
Enhances visual acuity and immersion by providing high-resolution imagery within central vision and lower resolution in peripheral vision, optimizing pixel density distribution based on gaze direction without increasing overall display device resolution.
Implementation Method 1
the first region of the dual state LC panel is configured to reflect the light beams projected by the projector
Implementation Method 2
a second region of the dual state LC panel is configured to transmit light beams of the second image from the display panel
Implementation Method 3
the LC layer is configured to reflect light beams having a first circular polarization and to transmit light beams having a second circular polarization where handedness of the first circular polarization is opposite to handedness of the second circular polarization
Data Source
AI summary
A display system includes a projector configured to project light beams on a first region of a dual state liquid crystal (LC) panel to form a first image on the first region. The display system includes the dual state LC panel configured to operate in a dual state where the first region reflects the light beams projected by the projector and a second region of the dual state LC panel transmits light beams of a second image. The display system directs light beams of the first image and the second image onto different areas of a retina of an eye of a user of the display system. The display system includes processing circuitry configured to: determine a location of the first region on the dual state LC panel and control the dual state LC panel and the projector based on the gaze direction.