Thin Position Sensor Sleeve for Portable Pen Input
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Solution Overview
Problem
Existing position detection devices, such as pen tablets, are bulky and inconvenient to carry due to their sturdy construction and inclusion of liquid crystal displays, making them expensive and less accessible to users who already own laptops or smartphones.
Innovation Solution
A position detection device with a simple configuration, featuring a sensor housed in a bag-shaped protective member, comprising first and second electrodes, and a protective member that serves as an operation surface, allowing for a thin and portable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a liquid crystal display and position detection sensor are housed in a sturdy housing, then the device is protected from external force and becomes sturdy, but the device thickness increases and becomes inconvenient to carry
Solution Approach 1:
The patent applies a flexible protective film instead of a rigid housing to protect the position detection sensor. This thin film provides necessary protection while maintaining extreme thinness and flexibility of the overall device, resolving the contradiction between strength and thickness.
Solution Approach 2:
The patent extracts the liquid crystal display from the position detection device, keeping only the position detection sensor. This removal of the display layer significantly reduces device thickness while maintaining the core position detection function, allowing the device to be extremely thin and portable.
2Adaptability or versatility
If a liquid crystal display is included in the position detection device, then the device can perform drawing display, but the device becomes expensive
Solution Approach 1:
The patent extracts and removes the liquid crystal display component from the position detection device. By keeping only the position detection sensor and connecting it to existing displays on laptops or smartphones, the device becomes much less expensive while users can still access drawing display functionality through their existing devices.
3Adaptability or versatility
If a liquid crystal display and position detection sensor are integrated in a fixed configuration, then the device provides complete functionality, but the device complexity increases
Solution Approach 1:
The patent segments the position detection device from the display device. The position detection sensor is made as a separate, simple component that connects to existing displays on laptops or smartphones. This segmentation simplifies the device configuration while maintaining complete drawing input and display functionality through the combination of the simple sensor and existing display.
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 device is extremely thin, easy to carry, and can be used with laptops or smartphones, providing a large operation input region for drawing inputs with an electronic pen, suitable for students and users on the go.
Implementation Method 1
a sensor in which a plurality of first electrodes arranged in a first direction and a plurality of second electrodes arranged in a second direction intersecting the first direction, are stacked
Data Source
AI summary
Provided is a position detection device including a sensor in which a plurality of first electrodes arranged in a first direction and a plurality of second electrodes arranged in a second direction intersecting the first direction are stacked, a position detection circuitry that, in operation, detects an indicated position on the sensor based on output signals from the first electrodes and the second electrodes of the sensor, and a protective member that is formed in a bag shape and houses at least the sensor inserted from an opening, the protective member having a surface serving as an operation surface.