Detachable Touch Sensor Substrate for Keyboard Instruments
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Solution Overview
Problem
Conventional touch-type input apparatuses face challenges in replaceability and effective touch detection, as the touch sensor is strongly attached to a glass substrate, making it difficult to replace only the touch sensor without replacing the entire apparatus.
Innovation Solution
The input apparatus features a detachable design with a touch detection substrate, a control substrate, a reflector, and a case, where the touch detection substrate has openings for a touch pattern, and the case has openings for light emission, allowing for easy replacement of the touch detection substrate and effective touch detection without an air layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the touch sensor is strongly attached to the glass substrate, then the touch detection is effective, but the replaceability of the touch sensor is poor
Solution Approach 1:
The input apparatus is divided into separable components: the touch detection substrate (containing the touch sensor) can be detached from the case assembly. This segmentation allows the touch sensor to be replaced independently while maintaining strong attachment during operation, thus resolving the contradiction between detection effectiveness and replaceability
Solution Approach 2:
The attachment state of the touch detection substrate is made dynamic - it is strongly fixed during normal operation for effective touch detection, but can be easily detached when replacement is needed. The fastening component enables this dynamic transition between fixed and removable states
2Reliability
If the touch sensor is strongly attached to the glass substrate, then the touch detection is effective, but the maintenance difficulty increases
Solution Approach 1:
By segmenting the touch detection substrate as a separate replaceable module, the patent enables easy maintenance. When the touch sensor fails, only this modular component needs to be replaced rather than the entire apparatus, reducing maintenance complexity while preserving detection effectiveness during use
3Illumination intensity
If the light emitting element illuminates the design element, then the visual display is improved, but the light uniformity may be affected
Solution Approach 1:
A light diffusing plate is introduced as an intermediary between the LED light emitting element and the design element. This diffusing plate scatters the light to achieve uniform illumination across the design element, resolving the contradiction between providing sufficient brightness and maintaining light uniformity
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
This design enhances replaceability and maintains effective touch detection, allowing for easy maintenance and improved user experience by ensuring that the touch detection substrate can be replaced independently without affecting the overall apparatus functionality.
Implementation Method 1
a control substrate having a light emitting element... light emitted by the light emitting element is released to an exterior
Implementation Method 2
a reflector provided between the touch detection substrate and the control substrate and including a light reflection region disposed in such a manner as to correspond to the light emitting element
Data Source
AI summary
An input apparatus includes a touch detection substrate having a first opening and including a touch pattern provided on an outer circumference of the first opening, a control substrate having a light emitting element, a reflector provided between the touch detection substrate and the control substrate and including a light reflection region disposed in such a manner as to correspond to the light emitting element, a panel including a touch surface, and a case having a second opening and to which the panel is attached, and light emitted by the light emitting element is released to an exterior by way of the first opening and the second opening, and the case and the reflector are detachably fixed together with a fastening component.