Lenticular Display Power Reduction via Selective Pixel Activation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Lenticular displays consume significant power when rendering and displaying images from multiple perspectives, which is particularly problematic when the number of perspectives is large.
Innovation Solution
A method and system that selectively activates only the portions of the lenticular display corresponding to detected individuals at specific horizontal angles, deactivating the remainder to conserve power, and renders content only for those angles, while displaying the same or different content based on the viewer's characteristics or metadata.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lenticular display renders and displays images from multiple perspectives, then the display functionality and viewer experience are improved, but the power consumption increases significantly
Solution Approach 1:
The lenticular display is divided into multiple independently controllable pixel columns, each corresponding to a specific viewing angle. The system selectively activates only the pixel columns needed for current viewing conditions, rather than rendering all perspectives simultaneously. This segmentation allows the display to maintain multi-perspective capability while consuming power only for active segments.
Solution Approach 2:
Instead of rendering all possible perspectives at full resolution, the system renders only the portions of content needed for current viewing angles. The patent implements partial rendering by activating only necessary pixel columns and using lower resolution for less critical areas, thereby reducing overall power consumption while maintaining adequate display quality.
2Adaptability or versatility
If the lenticular display activates all pixel columns to ensure content is visible from all angles, then the coverage and accessibility are improved, but the power consumption increases
Solution Approach 1:
The display system dynamically adjusts which pixel columns are active based on real-time detection of viewer positions. The system continuously monitors viewing angles and reconfigures active display regions accordingly, transitioning between different sets of pixel columns as viewers move. This dynamic adaptation maintains comprehensive viewing coverage while minimizing power consumption at any given moment.
Solution Approach 2:
The system uses cameras or sensors to detect viewer positions and provides feedback to the rendering system. Based on this feedback, the system determines which pixel columns should be active and adjusts the display configuration accordingly. This closed-loop control ensures that the display maintains adequate coverage for actual viewers while avoiding unnecessary power consumption for empty viewing zones.
3Manufacturing precision
If the lenticular display renders high-resolution content for multiple perspectives, then the image quality is improved, but the computational load and power consumption increase
Solution Approach 1:
The system applies different rendering qualities to different regions of the display based on their importance and current viewing conditions. Pixel columns corresponding to active viewing angles receive high-resolution rendering, while inactive or less important regions use lower resolution or are completely deactivated. This local quality differentiation maintains image quality where needed while reducing overall computational load.
Solution Approach 2:
The system changes rendering parameters such as resolution, color depth, and refresh rate based on the number and position of active viewers. When fewer viewers are present, the system reduces rendering resolution and disables unnecessary pixel columns, thereby significantly reducing computational power requirements while maintaining adequate image quality for the actual number of viewers.
Data Source
AI summary
In one implementation, a method of operating a wearable device is performed by a device in a physical environment, the device including a processor, non-transitory memory, and a display. The method includes determining a device operating condition based on whether the device is being worn by a user. The method includes, in response to determining that the device operating condition is a first operating condition corresponding to the device being worn by the user, selectively activating a portion of the display based on a location of a person in the physical environment to display content to the person. The method includes, in response to determining that the device operating condition is a second operating condition corresponding to the device being unworn by the user, activating at least a portion of the display based on a content type of content to display the content.