Dual-Sided Display With Peep-Proof Backlight for Medical Privacy
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Solution Overview
Problem
Dual-sided displays with touch functions have not been applied in the medical field due to concerns about personal information leakage and potential disease transmission through frequent user contact.
Innovation Solution
A dual-sided display design incorporating a peep-proof element between the light guide plate and the second display panel, along with antibacterial films on the cover plates, to reduce information leakage and minimize disease transmission risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dual-sided display with touch functions is used, then user interaction capability is improved, but information leakage risk increases
Solution Approach 1:
The patent applies different viewing angle characteristics to different regions of the display. The first display surface uses a wide viewing angle panel for normal operation, while the second display surface uses a narrow viewing angle panel that limits viewing to specific angles, preventing unauthorized observation from side positions.
Solution Approach 2:
The patent introduces a directionality control mechanism as an intermediary between the display content and external observers. This mechanism selectively allows viewing from certain directions while blocking other directions, mediating between the need for user interaction and the need to prevent information leakage.
2Adaptability or versatility
If a dual-sided display with touch functions is used, then functionality is improved, but disease transmission risk increases
Solution Approach 1:
The patent applies different surface treatments to different parts of the display. The first touch surface uses a standard anti-fingerprint coating for normal use, while the second touch surface uses an antibacterial coating that provides antimicrobial protection, addressing the disease transmission concern for surfaces that may be more frequently contacted.
3Object-affected harmful factors
If a peep-proof element is added to control light emission angle, then information leakage is reduced, but device complexity increases
Solution Approach 1:
The patent uses the inherent directional emission characteristics of the second display panel as a dynamic solution. Rather than adding static physical barriers, the system leverages the panel's built-in viewing angle limitations to achieve peep-proof functionality, avoiding additional complex components.
Solution Approach 2:
The second display panel's narrow viewing angle特性 serves the dual purpose of both displaying information and preventing unauthorized viewing. The panel's inherent optical properties automatically provide the peep-proof effect without requiring external control mechanisms.
4Object-affected harmful factors
If antibacterial films are applied to cover plates, then disease transmission risk is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent applies antibacterial film treatment only to specific surfaces (the second touch surface) rather than the entire device. This localized application reduces the amount of material and processing required compared to treating all surfaces, thereby minimizing the impact on manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively reduces the risk of information leakage and minimizes the spread of diseases by controlling light emission angles and incorporating antibacterial properties, making it suitable for medical applications.
Implementation Method 1
The backlight module includes a light guide plate, a light emitting element, and a peep-proof element. The light emitting element is configured to provide the light source and is disposed adjacent to one side of the light guide plate.
Implementation Method 2
The peep-proof element is configured to adjust a light emission angle of a display light and is disposed between the light guide plate and the second display panel.
Data Source
AI summary
A dual-sided display having a first surface and a second surface opposite to the first surface is provided. The dual-sided display includes a first display panel, a second display panel, and a backlight module. The first display panel is used to display an image on the first surface. The second display panel is used to display an image on the second surface. The backlight module is disposed between the first display panel and the second display panel to provide light sources for the first display panel and the second display panel. The backlight module includes a light guide plate, a light emitting element, and a peep-proof element. The light emitting element is used to provide the light sources and is disposed adjacent to one side of the light guide plate. The peep-proof element is used to adjust a light emission angle of a display light and is disposed between the light guide plate and the second display panel.