Inclined Electrostatic Touch Panel with Pen Holder
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Solution Overview
Problem
Printing devices with capacitive touch panels are less responsive when operated by a gloved hand, necessitating the use of a touch pen, which reduces convenience.
Innovation Solution
A printing device with an electrostatic touch panel inclined at an angle from horizontal, featuring a pen holder part at the bottom side with a higher wall height than the sides and top, allowing for improved touch pen placement and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a capacitive touch panel is used, then the touch panel can detect touch operations, but the responsiveness deteriorates when operated by a gloved hand
Solution Approach 1:
A touch pen is introduced as an intermediary tool between the user and the capacitive touch panel. The touch pen enhances the electrical signal detection capability, allowing reliable operation even when the user is wearing gloves. The pen acts as a mediator that bridges the gap between gloved hand operation and capacitive touch sensitivity.
Solution Approach 2:
The touch panel's detection parameters are adjusted or enhanced through the introduction of the touch pen, which changes the electrical characteristics of the touch input. This allows the panel to detect touch operations more reliably under gloved conditions by modifying the signal parameters rather than changing the physical structure of the panel itself.
2Ease of operation
If a touch pen is introduced to improve responsiveness, then the operation convenience improves, but the device complexity increases
Solution Approach 1:
The touch panel serves multiple functions: it acts as both the display interface and the touch input device. By integrating the touch pen compatibility into the existing capacitive touch panel structure, the system achieves multi-functionality without adding separate dedicated components, thereby limiting the increase in device complexity.
Solution Approach 2:
The capacitive touch panel inherently supports touch pen operation through its existing capacitive detection mechanism, rather than requiring external assistance or complex additional systems. The panel essentially serves itself by utilizing its built-in electrical field detection capability to recognize pen inputs, minimizing the need for external complexity.
3Ease of operation
If the touch panel is provided at an angle from horizontal, then the touch pen placement convenience improves, but the manufacturing precision requirements increase
Solution Approach 1:
The touch panel is installed at a non-horizontal angle, creating an asymmetric configuration that naturally guides the touch pen toward the panel surface. This asymmetric angular placement provides intuitive pen positioning convenience without requiring complex mechanical guides or precision adjustment mechanisms, as the angle itself provides the guiding function.
Solution Approach 2:
The angled touch panel creation a gravitational equipotential effect for the touch pen, allowing the pen to naturally settle into an optimal position on the panel surface through gravity. This eliminates the need for precise manual positioning or complex alignment mechanisms, as the pen's weight naturally guides it to the correct placement angle.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The inclined touch panel and pen holder design enhance the responsiveness of the touch panel, even when operated with a gloved hand, and provide a convenient means for storing and using a touch pen.
Implementation Method 1
an electrostatic touch panel provided at the case
Data Source
AI summary
A printing device includes: a case covering a printing mechanism; and an electrostatic touch panel provided at the case. The touch panel is provided at an angle from horizontal. At a bottom side of the touch panel, a wall for stopping a touch pen rolling down a surface of the touch panel is provided.