Rotating Input Electrode on Cover for Touch Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing input detection systems fail to enable effective input operations when the cover of an electronic apparatus case is closed over the display region of a touch panel, as they do not accurately detect the presence and rotation of input support devices.
Innovation Solution
An input detection system with a display device featuring detection electrodes, an electronic apparatus case with an accommodation portion and a cover that includes an input device with first and second electrodes facing the detection electrodes, allowing for input operations even when the cover is closed by reducing the distance between the input support device and the detection electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover is provided to cover the display region of the touch panel, then the display region is protected, but input operations cannot be performed when the cover is closed
Solution Approach 1:
The input detection function is segmented into two distinct regions: the display region (with touch panel) and the input support device region (with first and second electrodes). This allows the cover to protect the display region while the input support device remains functional on the cover surface, resolving the contradiction between protection and input capability.
Solution Approach 2:
The first and second electrodes on the input support device act as intermediaries that enable input operations without requiring direct contact with the display region. These electrodes detect input operations independently and transmit signals to the control unit, allowing users to interact with the device even when the cover is closed over the display area.
2Measurement precision
If the distance between the input support device and detection electrodes is reduced, then detection accuracy is improved, but the structural complexity increases
Solution Approach 1:
The input support device is merged with the cover structure, and the first and second electrodes are positioned to face the detection electrodes of the touch panel. This merging reduces the distance between the input support device and detection electrodes, improving detection accuracy while the integrated design minimizes the increase in structural complexity.
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
Enables reliable detection and operation of input support devices when the cover is closed, enhancing user interaction by maintaining touch detection accuracy and functionality.
Implementation Method 1
an input device that is mounted on the cover so as to rotate around a rotating axis extending in a normal direction to a surface of the cover and includes a first electrode and a second electrode facing the detection electrodes
Implementation Method 2
a display device with a detection function that includes a plurality of detection electrodes arrayed in a display region
Data Source
AI summary
An input detection system includes a display device with a detection function that includes a plurality of detection electrodes arrayed in a display region, an electronic apparatus case including an accommodation portion accommodating the display device with the detection function and a cover covering the display region of the display device with the detection function, and an input device that is mounted on the cover of the electronic apparatus case so as to rotate around a rotating axis extending in a normal direction to a surface of the cover and includes a first electrode and a second electrode facing the detection electrodes.