Shutter Glasses Synchronization for Privacy Filtering
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Solution Overview
Problem
Existing shutter glasses technologies primarily focus on viewing stereoscopic images and lack applications for controlling ambient light and providing privacy filtering for non-stereoscopic content.
Innovation Solution
A content playback device and method that generates and transmits shutter control signals to synchronize the opening and closing of shutter glasses lenses with the backlight of a display panel, allowing for control of ambient light and enabling privacy filtering by adjusting the timing of shutter and backlight operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If shutter glasses are used for viewing stereoscopic images, then stereoscopic viewing capability is improved, but the shutter glasses cannot provide ambient light shielding or privacy filtering for non-stereoscopic content
Solution Approach 1:
The patent applies multi-functionality by enabling shutter glasses to perform multiple functions: viewing stereoscopic images, shielding ambient light, and providing privacy filtering for non-stereoscopic content. The content playback device controls the shutter timing to synchronize with display panel backlight, allowing the same hardware to serve different purposes depending on the content type and user needs.
2Object-affected harmful factors
If the shutter opens and closes synchronously with the backlight, then ambient light shielding is improved, but the viewing experience for stereoscopic content may be degraded
Solution Approach 1:
The patent applies dynamics by allowing flexible adjustment of shutter timing relative to backlight timing. The system can dynamically adjust the timing relationship between shutter opening/closing and backlight on/off based on content type, user preferences, and viewing conditions, optimizing both ambient light shielding and viewing experience.
Solution Approach 2:
The patent applies parameter changes by modifying the timing parameters of shutter operation. The content playback device can change the timing offset, duration, and synchronization parameters between shutter and backlight based on different content characteristics and user needs, allowing optimization for different use cases.
3Object-affected harmful factors
If the shutter timing is adjusted for privacy filtering, then privacy protection is improved, but the synchronization with display content may be compromised
Solution Approach 1:
The patent applies feedback by implementing a control system that receives feedback about content type, user preferences, and viewing conditions. The content playback device uses this feedback to adjust shutter timing parameters, ensuring that privacy filtering is achieved while maintaining proper synchronization with display content.
Data Source
AI summary
A timing signal generation unit of a content playback device generates a shutter control signal requesting the opening or closing of a shutter of a lens among one or more lenses of a pair of shutter glasses worn by a user viewing a display panel adapted to display content, and a backlight control signal requesting a backlight of the display panel to be turned on at least when the shutter is open. A transmitter unit transmits the shutter control signal to the shutter glasses. The timing signal generation unit changes at least one of the timing of turning on the backlight or the timing of opening the shutter of the lens of the shutter glasses.