Metal-Backed Flexible Keyboard Circuit for Bend-Resistant Illumination
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Solution Overview
Problem
Existing light-emitting keyboard modules with double-sided circuit boards are prone to bending and damage over time, reducing their product life cycle and user experience.
Innovation Solution
A light-emitting keyboard module utilizing a metal base material flexible copper-clad double-sided circuit board with a support structure, including a double-sided circuit board, trigger layer, light-guiding film, elastic conducting member, LED light, and keycap, where the support structure enhances structural stability through specific layering and material arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double-sided circuit board is used to meet functional requirements, then the functionality is improved, but the structural stability deteriorates causing bending and damage
Solution Approach 1:
The patent uses a composite structure consisting of a flexible circuit board combined with a rigid support frame. The flexible circuit board provides electrical connectivity and functionality, while the rigid support frame (made of metal or rigid plastic) provides structural stability and prevents bending. This composite approach allows the keyboard module to maintain both flexibility for wiring and rigidity for structural integrity.
2Adaptability or versatility
If a double-sided circuit board is used to meet functional requirements, then the functionality is improved, but the product life cycle deteriorates due to bending and damage
Solution Approach 1:
The rigid support frame acts as a preventive protective structure that is built into the design from the beginning. It provides beforehand cushioning and reinforcement to the flexible circuit board, preventing bending and damage before they can occur during normal use, thereby extending the product life cycle.
3Device complexity
If a single-sided circuit board is used, then the structural simplicity is maintained, but the functional requirements cannot be met
Solution Approach 1:
The patent segments the circuit board structure into two distinct components: a flexible circuit board for electrical functionality and a separate rigid support frame for structural support. This segmentation allows each component to be optimized independently - the flexible board can be designed with complex multi-layer circuitry to meet functional requirements, while the support frame maintains structural simplicity and provides necessary reinforcement.
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 solution effectively increases the structural stability and service life of the light-emitting keyboard module by providing a stable support structure, ensuring the module remains functional and durable during extended use.
Implementation Method 1
an LED light arranged on the double-sided circuit board and arranged corresponding to the keycap
Implementation Method 2
an elastic conducting member arranged at a position corresponding to the third through hole
Data Source
AI summary
A light-emitting keyboard module with a metal base material flexible copper-clad double-sided circuit board, comprising a double-sided circuit board, a trigger layer, a light-guiding film, an elastic conducting member, an LED light and a keycap. The trigger layer is arranged on the double-sided circuit board, and conducting contacts are arranged under the trigger layer corresponding to a position of the double-sided circuit board. A conduction pressing point is arranged at a position corresponding to the conducting contact above the trigger layer, the LED light is arranged on the double-sided circuit board. The trigger layer is provided with a first through hole, the light-guiding film is arranged above the trigger layer, the light-guiding film is provided with a second through hole. The light-guiding film is provided with a third through hole, an elastic conducting member is arranged at a position corresponding to the third through hole.double-sided.