Dynamic View Angle Limit Panel for Screen Security
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Solution Overview
Problem
Electronic devices with wide view angles pose a risk of exposing personal information in public settings, as existing security films can limit clarity and view angles inefficiently, and are difficult to remove.
Innovation Solution
An electronic device with a sensor unit, display unit, and processor that adjusts the transparency of a view angle limit panel based on the device's direction, enabling selective and easy activation or deactivation of a screen security function to limit the view angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a security film is attached to the display to limit view angle, then screen security is improved, but clarity and view angle are decreased
Solution Approach 1:
The patent applies a view angle limit panel that can dynamically adjust its light scattering properties based on electrical signals. The panel transitions between a transparent state (when no current is applied) and a light-scattering state (when current is applied), enabling dynamic control of view angle limitation without permanent compromise to display clarity. This resolves the contradiction by making the security measure adjustable rather than fixed.
Solution Approach 2:
The patent changes the physical state of the view angle limit panel by applying electrical current, which alters its optical properties from transparent to light-scattering. This parameter change enables the system to switch between security mode (light scattering) and normal display mode (transparent), thereby maintaining clarity when security is not needed while providing security when required.
2Reliability
If a security film is attached to limit view angle, then screen security is improved, but ease of removal is worsened
Solution Approach 1:
The patent extracts the security function from a permanent physical film and implements it through an electrical control system. Instead of attaching a security film that is difficult to remove, the system uses a view angle limit panel controlled by electrical signals, which can be easily activated and deactivated without physical attachment or removal operations.
Solution Approach 2:
The patent replaces the mechanical attachment system (security film glued to display) with an electrical control system. The view angle limit panel is controlled through electrical current application rather than physical adhesion, eliminating the complexity of attachment and removal operations while maintaining the security function.
3Reliability
If a security film is attached to limit view angle in a basic direction, then screen security is improved, but adaptability to display direction changes is worsened
Solution Approach 1:
The patent employs a dynamic view angle limit panel that can adjust its light scattering characteristics in real-time based on display orientation. The panel responds to electrical signals that change its optical properties according to the current display direction, enabling adaptive view angle limitation whether the display is in vertical or horizontal orientation.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system detects display direction changes and automatically adjusts the view angle limit panel's scattering characteristics accordingly. This feedback loop ensures that the security function adapts to maintain effectiveness regardless of display orientation.
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 solution allows for secure operation of electronic devices without compromising usability, enabling quick and efficient control of the screen security function based on the device's orientation, thereby enhancing security without affecting image quality.
Implementation Method 1
a view angle limit panel disposed on the display panel... supply an electric current to the view angle limit panel based on the determined view angle limit direction
Data Source
AI summary
The present disclosure relates to a method and an electronic device for executing a screen security function. The electronic device includes a display unit comprising a view angle limit panel disposed on a display panel, a sensor unit including at least one sensor, and a processor. The electronic device can receive a screen security execution command, identify a direction of the electronic device using the sensor unit functionally connected to the processor, determine a view angle limit direction based on the identified direction of the electronic device using the processor, and supply an electric current to the view angle limit panel based on the determined view angle limit direction using the view angle limit panel functionally connected to the processor.