Anti-Peeping Display Panel Using Time-Division Multiplexed Self-Luminous Devices
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Solution Overview
Problem
Display devices lack effective anti-peeping functionality, which is crucial for securing personal information during operations on networks, especially in industries requiring confidential information transmission.
Innovation Solution
A display panel comprising self-luminous devices and quantum dot luminous devices, where the first self-luminous devices display a normal picture during a frame and the second self-luminous devices display an interference picture during an alternate frame period, with shutter glasses filtering out the interference to maintain privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional display devices are used, then information can be displayed clearly, but anti-peeping performance is insufficient and personal information may be leaked
Solution Approach 1:
The display device is segmented into multiple independent light-emitting systems: first light-emitting devices for normal display, second light-emitting devices for interference patterns, and third light-emitting devices for additional security layers. Each segment operates independently and can be controlled separately to achieve different display modes (normal display vs. anti-peeping mode), thereby improving anti-peeping performance without compromising overall display functionality.
Solution Approach 2:
The patent implements periodic switching between normal display mode and anti-peeping mode through time-division multiplexing. During normal operation, the first light-emitting devices are active; when anti-peeping is required, the system switches to displaying interference patterns using the second light-emitting devices. This periodic action allows the display to maintain clarity when needed while providing security protection during sensitive operations.
2Reliability
If multiple light-emitting devices are added for anti-peeping, then security is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functional components into an integrated display structure where first, second, and third light-emitting devices are combined within the same pixel units. The control system integrates multiple control signals into a unified control architecture that manages all light-emitting devices simultaneously. This merging approach allows the system to achieve enhanced security through multiple light-emitting layers while avoiding the complexity of separate independent systems.
Solution Approach 2:
The light-emitting devices are designed with multi-functionality: the first light-emitting devices serve both as primary display elements and as part of the interference pattern generation system. The second and third light-emitting devices can operate independently for security purposes or in combination with the first devices for enhanced anti-peeping effects. This universal design allows a single component to perform multiple functions, reducing the need for additional specialized components.
3Reliability
If interference pictures are displayed during anti-peeping mode, then privacy protection is achieved, but normal display functionality is interrupted
Solution Approach 1:
The system employs periodic switching between normal display mode and anti-peeping mode through time-division multiplexing. During normal operation, the first light-emitting devices are active; when anti-peeping is required, the system switches to displaying interference patterns using the second light-emitting devices. This periodic action allows the display to maintain clarity when needed while providing security protection during sensitive operations, thereby minimizing interruption to normal display functionality.
Solution Approach 2:
The display system dynamically adjusts its operation mode based on real-time requirements. The control circuitry monitors the display content and automatically switches between normal display and anti-peeping modes as needed. This dynamic adaptation allows the system to maintain high display efficiency during routine operations while providing privacy protection when required, optimizing the balance between productivity and security.
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 that only authorized viewers can see the normal picture, while unauthorized viewers see a superimposed or obscured image, effectively protecting sensitive information.
Implementation Method 1
the first self-luminous devices are configured to excite the quantum dot luminous devices to emit light during a display period of one frame
Implementation Method 2
quantum dot luminous devices are disposed in at least two sub-pixel regions, and quantum dot luminous devices disposed in different sub-pixel regions have different luminous colors
Implementation Method 3
the second self-luminous devices are configured to be in a turn-off state during the display period of one frame and excite quantum dot luminous devices within a part of the sub-pixel regions to emit light during an interference period of one frame
Implementation Method 4
each of the pixel units further comprises an optical filter layer disposed on one side, which is far away from the substrate, of each of the quantum dot luminous devices and configured to filter light emitted by the first self-luminous devices
Data Source
AI summary
The present disclosure provides a display panel, a method for driving the same, and an anti-peeping system. The display panel comprises a substrate; and multiple pixel units arranged on the substrate in an array, each of the pixel units comprising first self-luminous devices, second self-luminous devices, and quantum dot luminous devices, wherein the first self-luminous devices and the second self-luminous devices are stacked in various sub-pixel regions, the quantum dot luminous devices are disposed in at least two sub-pixel regions, and quantum dot luminous devices disposed in different sub-pixel regions have different luminous colors, wherein the first self-luminous devices are configured to excite the quantum dot luminous devices to emit light during a display period of one frame to display a normal picture, and the second self-luminous devices are configured to be in a turn-off state during the display period of one frame and excite quantum dot luminous devices within a part of the sub-pixel regions to emit light during an interference period of one frame to display an interference picture. The display panel according to the embodiments of the present disclosure realizes an anti-peeping function.