Optical Waveguide System for Display Devices
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Solution Overview
Problem
Existing portable mixing amplifiers face mechanical robustness issues due to exposed wire connections for LEDs, which are prone to fractures and assembly complexity, and result in uneven LED placement and mismatched color schemes, affecting user interface aesthetics and functionality.
Innovation Solution
Mounting LEDs on a circuit carrier with optical fibers routing light to display panels on the front panel, eliminating direct wiring and using SMD technology for consistent spacing, along with optical fiber groups and housings to prevent light leakage and enhance assembly precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LEDs are mounted directly on the front panel with wire connections, then contact connection is achieved, but mechanical robustness deteriorates due to exposed wires prone to fractures
Solution Approach 1:
The patent extracts the LEDs from direct mounting on the front panel and relocates them to the circuit carrier board. The light function is separated from the structural mounting, allowing wires to be hidden within the circuit board traces rather than exposed externally. This extraction resolves the mechanical robustness issue while simplifying assembly.
Solution Approach 2:
The circuit carrier board serves as an intermediary between the LEDs and the front panel. Instead of directly connecting LEDs to the front panel with exposed wires, the circuit board mediates the connection by routing signals through its internal traces, protecting the wiring and improving mechanical stability.
2Manufacturing precision
If LEDs are mounted on the front panel, then display function is achieved, but manufacturing precision deteriorates due to uneven level structure
Solution Approach 1:
The LEDs are extracted from the front panel mounting location and placed on the circuit carrier board. This separation allows the front panel to maintain its structural integrity and uniform surface, while the LEDs are positioned on the board where precise placement is easier to achieve and maintain.
3Ease of manufacture
If LEDs are mounted on the front panel, then display function is achieved, but color scheme consistency deteriorates due to color mismatch
Solution Approach 1:
The LEDs are extracted from direct front panel integration, allowing their color to be independently selected and matched to the overall device color scheme without being constrained by front panel material limitations. This enables better aesthetic consistency.
4Length of stationary object
If spacers are inserted to ensure distance between board and front panel, then spacing is maintained, but device complexity increases due to additional assembly steps
Solution Approach 1:
The spacing function is merged with the circuit carrier board structure itself. The board's thickness and rigid PCB construction inherently maintain the required distance between the LED mounting surface and the front panel, eliminating the need for separate spacer components and reducing assembly 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
This solution enhances mechanical robustness, simplifies and secures assembly, provides a uniform and aesthetically pleasing user interface, and reduces light loss and directional emission, while allowing for standardized and cost-effective production of optical fibers.
Implementation Method 1
The light is routed from the LEDs via optical fibers to the display panels
Data Source
AI summary
The invention relates to an optical waveguide system (20) for a display device (1) and to such a display device (1), wherein the optical waveguide system (20) comprises at least one optical waveguide group (20-1, 20-2, 20-3, 20-4, 20-5, 20-6), wherein at least one of the optical waveguide groups (20-1, 20-2, 20-3, 20-4, 20-5) comprises: several optical waveguides (18) made of a material that is transparent to the light of a LED (14), spacers (34) for adjusting a distance of an interspace (30) between a circuit carrier (12) and a front panel (2), and a housing (22) which is made of a material that is intransparent to the light, surrounds each of the several optical waveguides (18) and connects the optical waveguides (18) and the spacers (34) among each other and to each other.