Switchable Module for Privacy in Blind Hole Display Panels
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Solution Overview
Problem
Conventional blind hole displays in electronic devices, such as mobile phones and tablets, are vulnerable to remote hacking, allowing unauthorized image capture, compromising user privacy during private activities.
Innovation Solution
A display panel with a switchable module between through holes in the non-display region, controlled by a voltage-controlled switchable module, comprising light-scattering liquid crystals and a shielding sheet, allowing manual control over light transmission to prevent unauthorized image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a blind hole display is used to increase screen-body ratio, then the screen-body ratio is improved, but the security and privacy protection deteriorates due to unauthorized lens access
Solution Approach 1:
The patent applies a switchable module that can dynamically change between transparent and opaque states to control light transmission through the blind hole. This dynamic property allows the system to adapt between different security requirements and display needs, resolving the contradiction between maintaining high screen-body ratio and preventing unauthorized capture.
Solution Approach 2:
The switchable module changes its optical parameters (transparency/opacity) based on control signals. When in opaque state, it blocks light to prevent unauthorized image capture; when in transparent state, it allows light transmission for normal display operation. This parameter change capability enables the system to maintain both high screen-body ratio and security.
2Adaptability or versatility
If a lens is placed in the blind hole for image capture, then the image capture function is improved, but the privacy security deteriorates due to remote hacking vulnerability
Solution Approach 1:
The switchable module acts as an intermediary between the external environment and the lens. It controls whether light can reach the lens by switching between transparent and opaque states, thereby mediating the image capture function and enhancing privacy security without removing the lens entirely.
Solution Approach 2:
The system performs preliminary action by blocking light through the opaque state of the switchable module before any unauthorized image capture can occur. This preventive measure ensures that even if the lens is remotely activated, no image can be captured without proper light transmission.
3Reliability
If the switchable module is added to control light transmission, then the privacy security is improved, but the device complexity increases
Solution Approach 1:
The switchable module serves multiple functions: it acts as a security control mechanism for privacy protection, a light transmission controller for display operation, and an optical switch for image capture management. This multi-functionality reduces the need for separate components, thereby limiting the increase in device 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
Ensures security and protects privacy by enabling manual control over image capturing actions, preventing external light from entering the lens when not intended, thereby preventing unauthorized image capture.
Implementation Method 1
the switchable module is a light-scattering liquid crystal
Implementation Method 2
the switchable module is a light-scattering liquid crystal
Implementation Method 3
the shielding sheet is provided with a magnetic conductive portion, a magnet is located on a side of the display panel where the first through hole is located, and the magnet is connected with the shielding sheet by attracting the magnetic conductive portion
Data Source
AI summary
A display panel and an electronic device are provided. The display panel includes a display region and a non-display region. The first polarizer is provided with a first through hole, and the second polarizer is provided with a second through hole. A switchable module is located between the first through hole and the second through hole, and includes an on state and an off state to control light entering the display panel. The display panel provided manually controls whether the electronic device performs an image capturing action, thereby ensuring security and protecting privacy.