In-Cell Touch Screen Mode Control via Dynamic Feedback
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Solution Overview
Problem
Existing touch screen control solutions for In-Cell Touch (ICT) screens are not flexible enough to simultaneously support both touch and display functions, requiring them to be used alternately rather than simultaneously.
Innovation Solution
A method that detects touch behavior on a touch panel, determines a feedback signal based on this detection, and uses this signal to control the working mode of the touch screen, allowing for flexible switching between touch and display functions through specific modes such as ICT single display mode, ICT touch mode, ICT entry mode, and ICT exit mode, utilizing a TCON chip and driver chip for efficient control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the touch function and display function are switched at a higher speed, then the effect is closer to simultaneous use of touch and display functions, but the circuit of the liquid crystal screen cannot support simultaneous use and the switching requires fixed alternation without flexible control
Solution Approach 1:
The patent implements dynamic switching between different working modes (single display mode, touch mode, entry mode, exit mode) based on real-time touch detection results. The system transitions from static fixed-speed alternation to dynamic adaptive switching, where the switching speed and mode are adjusted according to actual touch behavior, thereby achieving flexible control without increasing overall system complexity
Solution Approach 2:
The patent introduces a feedback mechanism where touch detection results are continuously monitored and used to determine the next working mode. The control system receives feedback from touch detection and adjusts the switching between display and touch functions accordingly, enabling flexible adaptation to user needs while maintaining simple control logic through rule-based decision making
2Adaptability or versatility
If the touch function and display function are used alternately, then the circuit can support the functions, but the touch screen cannot be flexibly controlled regardless of whether touch behavior exists
Solution Approach 1:
The system dynamically adjusts its working mode based on detected touch behavior. When touch behavior is detected, the system switches to touch mode; when no touch behavior is detected, it returns to single display mode. This dynamic adaptation enables flexible control while maintaining circuit support through structured mode transitions
Solution Approach 2:
The touch screen system automatically determines and switches working modes based on its own touch detection results without requiring external control signals. The system serves itself by using its detection capability to control its own operation mode, thereby achieving operational flexibility while maintaining simple external interface requirements
Data Source
AI summary
A method for controlling touch screen, apparatus and device, a storage medium and a processor are provided, the method including that: a detection result is acquired, the detection result is used for representing whether a touch behavior over a touch panel of a touch screen exists; a feedback signal is determined according to the detection result; and a working mode of the touch screen is controlled according to the feedback signal.