See-Through Key Module With Detachable Keycaps and Tactile Feedback
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Solution Overview
Problem
Conventional see-through key modules lack replaceable keycaps and provide inadequate tactile feedback due to soft elastic elements that absorb pressing force, leading to unsatisfactory user experience and delayed switch activation.
Innovation Solution
A see-through key module design with detachable keycaps and hollow key frames made of hard materials, combined using embedding processes, ensures effective force transmission to underlying components, allowing immediate switch activation and customizable keycap options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a soft elastic element is used in the see-through key module, then the structure is flexible and easy to manufacture, but the pressing force is absorbed and tactile feedback is insufficient
Solution Approach 1:
The patent changes the material parameter of the elastic element from soft to hard, specifically using materials with a Shore hardness of 60 to 80 degrees (such as TPU or TPE). This parameter change enables the elastic element to effectively transmit pressing force while maintaining elastic functionality, thereby improving tactile feedback without compromising manufacturability.
2Ease of operation
If a hard keycap is used, then the tactile feedback is improved, but the keycap cannot be replaced and user customization is limited
Solution Approach 1:
The patent segments the keycap assembly into two independent parts: a keycap and a key frame. The keycap is detachably connected to the key frame through engaging structures (such as hooks or snap-fit mechanisms). This segmentation allows the keycap to be replaced while keeping the key frame and elastic element assembly intact, enabling user customization while maintaining the hard structure for good tactile feedback.
3Ease of operation
If the elastic element is made of soft material, then the structure is more comfortable, but the switch circuit cannot be triggered immediately and smoothly
Solution Approach 1:
The patent changes the hardness parameter of the elastic element to Shore hardness of 60 to 80 degrees, which provides sufficient rigidity for immediate switch activation while maintaining some elasticity for comfort. This optimized parameter range ensures that the pressing force is transmitted quickly to trigger the switch circuit without excessive delay, while still providing a comfortable pressing sensation.
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 design provides customizable keycaps, enhances tactile feedback, and ensures immediate switch activation by effectively transmitting pressing force, improving user experience and functionality.
Implementation Method 1
The hollow elastic wall is permitted to be subjected to deformation and returned to an original position
Data Source
AI summary
A display panel and a see-through key module are provided. The see-through key module is located over the display panel. The see-through key module includes at least one keycap, at least one hollow key frame and at least one elastic element. The keycap is a hard structure and includes a first engaging structure. The hollow key frame includes a second engaging structure. The keycap and the hollow key frame are detachably connected with each other through the first engaging structure and the second engaging structure. The elastic element is arranged between the display panel and the keycap. The elastic element includes a hollow elastic wall and a hollow lower part. The hollow key frame is fixed on the hollow elastic wall. The hollow elastic wall is arranged between the hollow key frame and the hollow lower part.