Screen Control via Pressure Threshold Mapping for Large Touch Displays
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Solution Overview
Problem
Large touch control screens on electronic devices, such as mobile phones and tablets, can be inconvenient to control with a single finger due to their size, as certain areas are difficult to reach, requiring users to use their other hand for operations like closing or minimizing windows.
Innovation Solution
A method and apparatus that determine if a touch control pressure value exceeds a pre-set threshold to generate specific control instructions, allowing users to control the screen through a mapping relationship table, enabling operations on any finger-touchable location to control contents on untouchable areas, thus allowing single-handed operation on large screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the screen size is increased to provide better display, then the display area is improved, but the ease of operation deteriorates as certain areas become difficult to reach with a single finger
Solution Approach 1:
The patent introduces a mapping relationship table as an intermediary mechanism that maps touch operations from reachable areas to control instructions for unreachable areas. When a user touches a reachable location, the system determines the corresponding target area through this mapping table and executes the appropriate control instruction, effectively allowing indirect control of distant screen regions without requiring direct physical access.
Solution Approach 2:
The patent adds a logical mapping dimension to the physical screen space. Instead of directly controlling only the physically reachable areas, the system creates a virtual mapping layer where touches in reachable zones can trigger operations in unreachable zones through predefined mapping relationships, effectively extending the controllable area beyond physical reach.
2Area of stationary object
If the screen size is increased to provide better display, then the display area is improved, but the device complexity increases due to the need for complex control mechanisms
Solution Approach 1:
The patent pre-establishes mapping relationships between different screen areas and control instructions in a mapping relationship table before runtime. This preliminary configuration allows the system to handle complex screen control operations through simple lookups rather than complex real-time calculations, reducing the computational complexity and processing overhead during actual user interactions.
Solution Approach 2:
The patent changes the control parameter from direct coordinate-based control to mapping-based control. Instead of processing complex coordinate transformations and reachability calculations in real-time, the system uses predefined mapping relationships that simplify the control parameter space, making the overall system easier to manage despite the large screen size.
3Ease of operation
If pressure threshold detection is added to enable advanced control features, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent applies pressure threshold detection selectively at specific touch locations rather than uniformly across the entire screen. By determining whether the touch pressure exceeds a threshold at the touched location and then applying the appropriate mapping relationship, the system enhances operational capability only where needed while keeping the overall system architecture simple and manageable.
Data Source
AI summary
Screen control methods and apparatus are provided. When it is determined that a touch control pressure value on a touch control screen exceeds a pre-set pressure threshold value to, a touch control operation by a finger on the touch control screen can be obtained. Corresponding to the touch control operation, a control instruction can be called according to a mapping relationship table that is pre-set. The mapping relationship table includes a mapping relationship between the touch control operation and the control instruction. The touch control screen can be controlled to display contents according to the control instruction.