Backlight Substrate Layout With Chassis Wire Routing to Cut Noise
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Solution Overview
Problem
Existing display apparatuses face challenges in reducing manufacturing costs, noise interference from electric wires, and improving manufacturing efficiency while ensuring proper alignment and support for light source substrates.
Innovation Solution
A display apparatus design featuring a bottom chassis with first and second borders extending in different directions, supporting light source substrates with substrate bars, and arranging electric wires on the rear surface to minimize interference and enhance manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If electric wires are arranged freely to connect components, then ease of connection is improved, but noise interference and interference with other components increase
Solution Approach 1:
The patent introduces a dedicated wire routing structure (groove or channel) in the bottom chassis as an intermediary element. This routing structure guides and confines electric wires along predetermined paths, preventing them from interfering with other components while maintaining ease of connection. The routing structure acts as a mediator between the wire and surrounding components, isolating electromagnetic interference.
Solution Approach 2:
The patent segments the wire routing function from the general chassis structure by incorporating dedicated routing grooves or channels within the bottom chassis. This segmentation allows wires to be confined to specific pathways separated from other electronic components, reducing electromagnetic interference while maintaining connection flexibility.
2Manufacturing precision
If substrate body is positioned close to bottom chassis border, then manufacturing precision is improved, but wire routing space is reduced
Solution Approach 1:
The patent resolves the spatial conflict by utilizing the vertical dimension (depth/thickness of bottom chassis) for wire routing. Instead of trying to route wires horizontally between the substrate body and chassis border, the routing structure extends vertically into the chassis, providing adequate wire routing space while maintaining precise horizontal positioning of the substrate body.
Solution Approach 2:
The wire routing grooves or channels are nested within the bottom chassis structure, creating a hierarchical arrangement where the routing structure is integrated into the chassis body. This nesting allows the substrate body to be positioned precisely at the border while the routing structure provides wire pathways within the chassis material itself.
3Device complexity
If conventional substrate arrangement is used, then manufacturing simplicity is maintained, but manufacturing efficiency is reduced
Solution Approach 1:
The patent incorporates wire routing grooves or channels as integral features during the initial manufacturing of the bottom chassis. This preliminary action of pre-forming routing structures eliminates the need for subsequent wire routing operations, assembly steps, or adjustments, thereby significantly improving manufacturing efficiency while maintaining structural simplicity through integrated design.
Solution Approach 2:
The patent merges the wire routing function with the bottom chassis structure by integrating routing grooves or channels directly into the chassis material. This consolidation combines multiple functions (structural support and wire guidance) into a single component, eliminating separate routing elements and improving manufacturing efficiency through reduced part count and 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
The design reduces manufacturing costs, minimizes noise interference, and improves manufacturing efficiency by optimizing the structure of light source substrates and electric wire placement.
Implementation Method 1
Each of the plurality of light sources includes, for example, a light emitting diode (LED) or an organic LED (OLED).
Implementation Method 2
Each of the plurality of light sources includes, for example, a light emitting diode (LED) or an organic LED (OLED).
Data Source
AI summary
A display apparatus includes a display panel, a plurality of light source substrates, a plurality of light sources mounted on the plurality of light source substrates and configured to emit light toward the display panel, a driving board configured to control operation of each of the plurality of light sources, a plurality of connectors electrically connected to the driving board by an electric wire and arranged on the plurality of light source substrates, and a bottom chassis including vertical borders extending and configured to support the plurality of light source substrates. Each of the plurality of light source substrates includes a substrate body, and a plurality of substrate bars horizontally extending from the substrate body. The substrate body of some of the plurality of light source substrates is farther from the vertical border of the bottom chassis in the horizontal direction than the plurality of substrate bars.