Parallel Circuit Board in Local Key Module for Slim Display
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Solution Overview
Problem
The thickness of display devices increases due to the thickness of local key modules, which manage multiple functions using a single key, compromising their slim appearance and user convenience.
Innovation Solution
A local key module with a rotatable wheel key, rotation detection unit, and circuit board aligned in a parallel configuration, allowing intuitive function control while reducing the overall thickness of the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a local key module is installed to manage multiple functions using a single key, then user convenience is improved, but the thickness of the display device increases
Solution Approach 1:
The patent repositions the circuit board from a vertical orientation (perpendicular to the display panel) to a horizontal orientation (parallel to the display panel). This dimensional change allows the circuit board to be integrated within the same thickness plane as the display panel, eliminating the need for additional vertical space and thus reducing the overall device thickness while maintaining all local key functions.
Solution Approach 2:
The circuit board is nested within the same thickness envelope as the display panel by aligning it on a parallel plane. This nesting approach allows the circuit board to be accommodated within the existing structural boundaries of the display device, avoiding external protrusions and reducing overall device thickness.
2Ease of operation
If multiple local key buttons are exposed on the outside surface, then user convenience is improved, but the appearance is degraded
Solution Approach 1:
The patent implements a single local key module that can manage multiple functions (power on/off, channel switching, volume control, etc.) through a single key or wheel interface. This multi-functional design consolidates what would traditionally require multiple separate buttons into one unified control element, maintaining full user convenience while preserving a clean, minimalist appearance.
Solution Approach 2:
Multiple separate local key buttons are merged into a single integrated local key module. This consolidation combines multiple control functions into one physical location and visual element, eliminating the need for multiple exposed buttons while maintaining all necessary control capabilities.
3Ease of manufacture
If the circuit board is positioned perpendicular to the display panel, then ease of assembly is improved, but the thickness of the display device increases
Solution Approach 1:
The patent changes the orientation of the circuit board from perpendicular (vertical) to parallel (horizontal) relative to the display panel. This repositioning allows the circuit board to lie flat within the same thickness plane as the display panel, integrating it into the existing structural envelope and eliminating the need for additional vertical clearance.
Solution Approach 2:
Instead of positioning the circuit board in the conventional perpendicular orientation that extends outward from the display panel, the patent inverts this arrangement by positioning it parallel to the display panel, effectively flipping the spatial relationship to achieve thickness reduction.
Data Source
AI summary
A local key module and a display device including the same are disclosed herein. The local key module includes the local key module includes a wheel key configured to be rotatable, the wheel key having a circular shape aligned on a first plane, a rotation detection unit configured to detect a rotating movement of the wheel key, and a circuit board configured to supply electric current to the rotation detection unit, the circuit board being aligned on a second plane, wherein the second plane is parallel is the first plane.