Slidable Flexible Display Digitizer Separation for Touch Noise Control
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Solution Overview
Problem
Electronic devices with flexible displays face challenges in integrating a digitizer layer due to its unbendable nature, leading to touch misrecognition and noise interference when combined with a flexible touch layer.
Innovation Solution
A slidable electronic apparatus with a first and second housing, where a first digitizer module is positioned below the flexible display in the first housing, and a second digitizer module is positioned below the first module when the second housing is received inside the first. A processor configures different touch filters based on the movement of the second housing, controlling digitizer modules accordingly to minimize touch noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single digitizer layer is used with a flexible display in a slidable electronic apparatus, then the device structure is simplified, but the digitizer layer cannot be properly arranged due to its non-bendable nature
Solution Approach 1:
The patent divides the digitizer layer into multiple separate digitizer modules (first digitizer module and second digitizer module) that can be independently arranged. This segmentation allows each module to be positioned at different locations relative to the flexible display, enabling the non-bendable digitizer components to work with the bendable display in a slidable device configuration.
2Stability of the object's composition
If the digitizer layer is fixed below the flexible display, then the structure is stable, but touch recognition accuracy deteriorates due to noise interference
Solution Approach 1:
The patent applies different touch filters to different areas of the flexible display based on the local position of the second housing. When the second housing is in different positions (received inside vs. exposed outside), different touch filters are configured for different areas, allowing the system to optimize touch recognition accuracy for each specific local configuration while maintaining overall structural stability.
3Volume of moving object
If the second housing is received inside the first housing, then the device size is compact, but the digitizer arrangement becomes more complex
Solution Approach 1:
The patent implements a nested configuration where the second housing containing the second digitizer module is received inside the first housing that contains the first digitizer module. This nesting arrangement allows the multi-digitizer structure to be compact when not in use, while still enabling the complex digitizer arrangement to function properly when the second housing is extended outside.
4Measurement precision
If different touch filters are applied to different areas, then touch recognition accuracy is improved, but the processing complexity increases
Solution Approach 1:
The patent dynamically configures touch filters based on the movement state of the second housing. The system switches between different touch filter configurations depending on whether the second housing is received inside or exposed outside the first housing. This dynamic adaptation allows the system to maintain optimal touch recognition accuracy for each configuration state without requiring permanently complex processing for all possible states.
Data Source
AI summary
An electronic apparatus includes a first housing and a second housing configured to be received inside the first housing and to be movable within the first housing to be exposed outside of the first housing. The electronic apparatus includes a flexible display including a first area and a second area. The electronic apparatus includes a first digitizer module provided in the first housing below the flexible display and a second digitizer module provided in the second housing below the first digitizer module based on the second housing being received inside the first housing. The electronic apparatus includes a memory and a processor configured to detect a movement of the second housing with respect to the first housing, and configure a touch filter corresponding to each area of the flexible display based on the movement of the second housing.