Selective Viewing Angle Display for Privacy Protection
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Solution Overview
Problem
Existing display devices lack the ability to selectively control viewing angles, which can compromise user privacy by allowing sensitive information to be visible to unintended viewers.
Innovation Solution
A display device with two distinct display parts: a first display part for general content and a second display part that can operate in two modes - a wide viewing angle mode for general use and a narrow viewing angle mode for privacy, which reduces the resolution of the displayed image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a display device uses a fixed wide viewing angle for all display content, then general visibility and user experience are improved, but privacy protection for sensitive information deteriorates
Solution Approach 1:
The display device is divided into two distinct display parts: a first display part for general content with wide viewing angle, and a second display part for sensitive information with controllable viewing angle. This segmentation allows different privacy levels for different content types simultaneously.
Solution Approach 2:
The second display part incorporates dynamically adjustable viewing angle capability, allowing it to switch between wide and narrow viewing angles based on the type of content being displayed. This dynamic adjustment protects privacy for sensitive information while maintaining usability.
2Object-affected harmful factors
If a display device restricts viewing angle to protect privacy, then privacy protection is improved, but general visibility and user experience deteriorate
Solution Approach 1:
The narrow viewing angle restriction is applied locally only to the second display part that handles sensitive information, while the first display part maintains wide viewing angle for general content. This localized application preserves overall user experience while providing targeted privacy protection.
Solution Approach 2:
The viewing angle of the second display part is dynamically adjusted based on content sensitivity. When displaying sensitive information, the viewing angle narrows automatically; when displaying general content, it returns to wide angle, ensuring optimal visibility for each type of content.
3Manufacturing precision
If a display device uses high resolution for all display parts, then image quality is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The high resolution is applied selectively to the first display part for general content, while the second display part uses lower resolution since it displays sensitive information that does not require fine visual details. This reduces overall manufacturing complexity and cost.
4Adaptability or versatility
If a display device integrates multiple functional parts, then versatility is improved, but device complexity increases
Solution Approach 1:
The display device is segmented into two functionally distinct display parts with different characteristics. The first display part handles general content with wide viewing angle and high resolution, while the second display part handles sensitive information with adjustable viewing angle and lower resolution. This clear segmentation simplifies the control logic despite the multiple functions.
Data Source
AI summary
A display device includes a first display part and a second display part each configured to display images. The second display part is configured to selectively operate in a first mode and a second mode. In the first mode of operation, the second display part displays an image at a first viewing angle. In the second mode of operation, the second display part displays the image at a second viewing angle smaller than the first viewing angle.