Electronic Device Display Module Segmentation for Data Security
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Solution Overview
Problem
Existing methods for protecting data on portable electronic devices from unauthorized viewing in public places are inadequate, as anti-snooping measures like stickers and liquid crystal shielding have limited effectiveness, allowing data leakage.
Innovation Solution
An electronic device with a storage module, display module, and control module that creates two display areas with different optical characteristics, allowing only authorized users to view specific data by wearing corresponding viewing devices, ensuring data security through differing polarization or light source characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anti-snooping sticker is affixed onto display screen, then data leakage possibility is reduced, but viewable scope is limited and anti-snooping effect is still limited
Solution Approach 1:
The display screen is divided into multiple independent display areas, each capable of displaying different data with different optical characteristics. This segmentation allows different users to view different information simultaneously on the same screen, enhancing data security while maintaining full viewable scope for each user.
Solution Approach 2:
Different display areas are assigned different optical characteristics (such as polarization directions) to create localized viewing properties. This allows each user to see only the data intended for them while preventing unauthorized viewing of other data areas, resolving the contradiction between security and viewability.
2Reliability
If liquid crystals are controlled to shield backlight, then unnecessary image areas are covered, but anti-snooping effect is limited and data can still be easily leaked
Solution Approach 1:
The patent changes the optical parameters of different display areas by assigning different polarization directions to each area. This parameter differentiation ensures that only users with corresponding polarization viewing devices can access specific data, significantly enhancing data security beyond traditional liquid crystal shielding methods.
3Reliability
If different data are displayed on same screen with different optical characteristics, then data security is enhanced, but device complexity increases
Solution Approach 1:
The display device is designed to perform multiple functions using the same hardware components. The display screen simultaneously serves as both a public display area and a secure data transmission medium by utilizing different optical characteristics of the same physical area, thereby enhancing security without requiring separate display devices for different users.
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
Effectively prevents unauthorized access to data by displaying different information to different users on the same screen, enhancing data security and privacy through the use of distinct optical characteristics and viewing devices.
Implementation Method 1
The polarization effect of the second polarizer and the first polarizer is substantially deviated by 90 degrees. The liquid crystal control layer may create different polarization effects by changing the structure of the liquid crystal via different input voltages.
Implementation Method 2
the prior art also provides a method which controls the liquid crystals to shield away the backlight in order to cover unnecessary image areas
Data Source
AI summary
A data producing method and an electronic device thereof is disclosed. The electronic device comprises a storage module, a display module, and a control module. The storage module is capable of storing first data. The display module forms a first display area and a second display area. The data displayed on the first display area and the second display area have different optical characteristics. The control module is electrically connected to the storage module and the display module. The control module produces second data. The control module drives the first display area to display the first data and drives the second display area to display the second data. The first data and the second data are simultaneously displayed by the display module.