Stylus Signal Segmentation for Touch Display Stroke Precision
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Solution Overview
Problem
Conventional touch display screens experience low response speed and control accuracy, leading to issues like ink leakage, disconnection, and tailing due to inadequate signal transmission and interference, resulting in a poor user experience.
Innovation Solution
An information input method that involves acquiring a first signal from a stylus indicating contact status and transmitting a second signal with pressure values to accurately display strokes on the touch display screen, enhancing sensitivity and accuracy by combining these signals to prevent ink leakage and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional touch display screens use basic signal transmission for stylus input, then the device complexity is low, but the response speed and control accuracy are insufficient
Solution Approach 1:
The patent segments the signal transmission into multiple independent channels: a first signal for contact status detection and a second signal for pressure value transmission. This segmentation allows each signal to be optimized for its specific function, improving overall response speed without excessive complexity
Solution Approach 2:
The patent introduces an intermediary processing mechanism that receives both the first signal (contact status) and second signal (pressure value), then integrates them to control stroke display. This intermediary layer enables sophisticated control logic that improves response accuracy while managing complexity through structured processing
2Measurement precision
If conventional touch display screens use basic signal transmission, then the device complexity is low, but the control accuracy is insufficient leading to ink leakage and tailing
Solution Approach 1:
The patent implements feedback control by continuously monitoring the first signal (contact status) and second signal (pressure value) and adjusting stroke display accordingly. The system uses this feedback to prevent ink leakage and tailing by stopping stroke display when contact status changes or pressure falls below thresholds
Solution Approach 2:
The patent changes the parameters of signal transmission by introducing multiple signals with different functions (contact status vs. pressure values). This parameter expansion enables more precise control of stroke display characteristics, eliminating artifacts like ink leakage and tailing through refined parameter control
3Manufacturing precision
If the stylus transmits only basic contact information, then the signal transmission is simple, but the stroke display precision is insufficient
Solution Approach 1:
The patent segments the information transmission into distinct components: a first signal for contact status and a second signal for pressure values. This segmentation allows each component to be transmitted efficiently and processed independently, achieving high stroke display precision without unnecessary complexity
Solution Approach 2:
The patent adds another dimension to signal transmission by introducing a second signal for pressure values beyond the basic contact status. This dimensional expansion enables precise control of stroke characteristics (thickness, intensity) while maintaining signal transmission efficiency through structured multi-dimensional data
Data Source
AI summary
An information input method, applied to a touch display screen, includes: acquiring a first signal sent by a stylus, in which the first signal carries first status information, and the first status information is configured to indicate whether a tip of the stylus is in contact with the touch display screen; and displaying a stroke on the touch display screen under a condition that the first status information indicates a first status. An information input method applied to a stylus includes entering an activated state in response to a signal sent by a touch display screen, sending the first signal, and sending a second signal, wherein the second signal carries a tip pressure value of the stylus, wherein the first signal and the second signal are configured to instruct the touch display screen to display a stroke.