Display Panel Viewing-Angle Filtering for Selective Privacy
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Solution Overview
Problem
Existing electronic devices lack the ability to dynamically adjust the viewing angle of images on display panels for user privacy, particularly in scenarios where selective narrowing of the viewing angle is required.
Innovation Solution
The electronic device incorporates a display panel with display driver circuitry and processing circuitry to apply a filter that narrows the viewing angle of specific image layers or areas based on user inputs, utilizing pixel processing to adjust the field of illumination and reduce visibility from unintended angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is applied to narrow the viewing angle of specific image layers or areas, then user privacy is enhanced, but the device complexity increases due to additional pixel processing requirements
Solution Approach 1:
The patent divides the display content into multiple layers (foreground layer and background layer) and applies different processing to each layer. The filter is selectively applied to specific layers or areas rather than the entire display, allowing privacy protection for sensitive content while maintaining normal display functionality for other content. This segmentation approach enables targeted privacy protection without processing the entire display uniformly.
Solution Approach 2:
The patent implements spatially varying filter application by identifying specific areas or regions within the display that require privacy protection. Different portions of the display can have different viewing angle characteristics - some areas with narrowed viewing angles for privacy-sensitive content and other areas with normal viewing angles. This local quality approach allows the system to apply complexity only where necessary rather than uniformly across the entire display.
2Reliability
If pixel processing is performed to apply the filter to specific areas, then the viewing angle is narrowed for privacy protection, but the processing time increases
Solution Approach 1:
The patent performs layer identification and area classification in advance before the actual filter application. The display driver circuitry or processor pre-processes the image data to identify which layers or areas contain privacy-sensitive content, and prepares the necessary processing parameters beforehand. This preliminary action reduces the real-time processing burden when the filter needs to be applied, as the system already has the information ready about what requires privacy protection.
Solution Approach 2:
The patent implements dynamic filter application where the viewing angle narrowing is adjusted based on the specific content being displayed. The system can dynamically determine which layers or areas require privacy protection at any given moment and apply the filter accordingly. This dynamic approach allows the system to optimize processing time by only applying the filter when and where necessary, rather than maintaining a static filtered state across the entire display.
3Reliability
If the filter is applied to multiple layers and areas, then comprehensive privacy protection is achieved, but the device complexity and processing requirements increase significantly
Solution Approach 1:
The patent divides the display into multiple hierarchical levels: layers (foreground, background) and areas (spatial regions within layers). This multi-level segmentation allows the system to apply privacy protection selectively at different granularities. The display driver circuitry or processor can identify and process individual layers or specific areas within layers, enabling comprehensive privacy protection where needed while avoiding unnecessary processing in other regions.
Solution Approach 2:
The patent implements a universal filter application mechanism that can operate across multiple layers and areas using the same basic processing framework. The display driver circuitry or processor uses a consistent approach to identify, classify, and apply the filter regardless of which layer or area is being processed. This multi-functionality allows the system to handle complex multi-layer scenarios without proportionally increasing device complexity, as the same core mechanisms are reused across different contexts.
Data Source
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AI summary
An electronic device is provided. The electronic device may comprise a display panel. The display panel may be configured to adjust a viewing angle of at least a part of an image displayed on the display panel. The electronic device may comprise a display driving circuit. The electronic device may comprise at least one processor including a processing circuit.