Lenticular Display Viewer Tracking for Power-Saving 3D Zones
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Solution Overview
Problem
Existing electronic devices with lenticular displays face challenges in efficiently managing power consumption and minimizing visible artifacts due to latency and tracking loss in viewer position tracking systems, particularly when displaying three-dimensional content.
Innovation Solution
Implementing an eye and/or head tracking system to dynamically enable and disable viewing zones on the display based on viewer position, using a brightness profile that maintains image continuity during position shifts and reduces power consumption by selectively turning off unoccupied zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If all viewing zones are continuously illuminated to maintain image quality, then image continuity is preserved, but power consumption increases
Solution Approach 1:
The system performs preliminary action by enabling adjacent viewing zones in advance before the viewer actually moves into them. The brightness profile pre-activates zones that are likely to be needed based on predicted viewer movement, ensuring seamless image continuity while avoiding the need to keep all zones continuously illuminated
Solution Approach 2:
The system dynamically adjusts the illumination state of viewing zones based on real-time viewer position tracking. Instead of static continuous illumination, the system transitions zones between enabled and disabled states adaptively, creating an optimized balance between power consumption and image quality
2Measurement precision
If viewer position tracking is performed with high precision to eliminate tracking loss, then tracking accuracy improves, but system complexity and processing requirements increase
Solution Approach 1:
The system applies partial action by implementing a brightness profile that enables not only the currently occupied viewing zone but also adjacent zones with reduced brightness. This partial illumination approach handles tracking imprecision and latency by having overlapping active zones, effectively compensating for tracking loss without requiring excessively complex high-precision tracking systems
Data Source
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AI summary
An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. The lenticular lenses may be configured to enable stereoscopic viewing of the display such that a viewer perceives three-dimensional images. The display may have a number of independently controllable viewing zones. A eye and/or head tracking system may use a camera to capture images of a viewer of the display. Control circuitry in the electronic device may use the captured images from the eye and/or head tracking system to determine which viewing zones are occupied by the viewer's eyes. The control circuitry may disable or dim viewing zones that are not occupied by the viewer's eyes in order to conserve power. An unoccupied viewing zone and an adjacent, occupied viewing zone may display the same image to increase sharpness in the display.