Stylus Voltage Control for Dynamic Trace Color
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Solution Overview
Problem
Current touch display devices lack the ability to dynamically change the color of traces formed by a stylus, limiting user interaction and creativity in applications like graphic design.
Innovation Solution
A display device control pen with detachable accessories that vary voltage values, allowing the pen body to transmit color signals to the display device, enabling the display of different colors on the trace formed by the pen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a stylus is used on a touch display device, then the ability to prevent finger imprints and enable precise touch control is improved, but the ability to dynamically change trace colors is lost
Solution Approach 1:
The patent implements dynamic color change capability by allowing the stylus to transmit different voltage values to the display device, which then renders different colors along the trace. This is achieved through the signal generating unit that converts voltage variations into corresponding color signals, enabling the trace color to dynamically adapt based on the stylus's position and applied pressure.
Solution Approach 2:
The patent changes the voltage parameter transmitted by the stylus to control trace color. The variable-voltage circuit responds to different stylus positions and pressures by outputting different voltage values, which are then converted into color signals with varying hues, saturations, or brightness levels, thereby achieving color variation through parameter changes.
2Object-affected harmful factors
If a stylus is used instead of finger touch, then the number of imprints on the touch panel is reduced, but user interaction and creativity are limited
Solution Approach 1:
The patent enables color changes along the trace by mapping voltage values from the stylus to color parameters. As the stylus moves and applies varying pressure, the display device renders traces with different colors, providing visual feedback that enhances user interaction and creativity without requiring physical color changes on the stylus itself.
Solution Approach 2:
The system provides visual feedback by displaying colors on the trace that correspond to the stylus's position and pressure. This feedback loop enhances user interaction by allowing users to see the immediate effect of their touch inputs, thereby increasing engagement and creative possibilities while maintaining the benefits of stylus-based input.
3Adaptability or versatility
If the pen body transmits voltage signals to control color, then the ability to display various colors on the trace is improved, but the device complexity increases
Solution Approach 1:
The stylus is designed with multi-functionality, serving both as a touch input device and as a color control device. The same variable-voltage circuit that responds to touch pressure also generates the color signals, eliminating the need for separate color selection mechanisms and reducing overall system complexity despite the added color control capability.
Solution Approach 2:
The stylus automatically generates color signals based on its own operational parameters (position and pressure) without requiring external color selection input from the user. The variable-voltage circuit within the stylus self-adjusts the voltage output according to the applied pressure, and the signal generating unit automatically converts this to color signals, making the system self-sufficient and reducing complexity.
Data Source
AI summary
A display device control pen comprises a pen body and at least one detachable accessory. The detachable accessory comprises an electronic component. The pen body is detachably assembled with the detachable accessory. The pen body comprises at least one variable-voltage circuit, a signal generating unit and a signal transmitter. When the detachable accessory is assembled to the pen body, the electronic component is electrically connected to the variable-voltage circuit and varies a voltage value of the variable-voltage circuit. The signal generating unit is coupled to the variable-voltage circuit and generates a color signal based on the varied voltage value. The signal transmitter is coupled to the signal generating unit and transmits the color signal to the display device, such that the display device displays a color on a trace formed by the pen body according to the color signal.