Backlight Unit Component Standardization for Video Display Wiring
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Solution Overview
Problem
The complexity and cost of manufacturing video display devices with multiple LEDs, each having different structures based on their location, lead to increased component numbers and manufacturing processes.
Innovation Solution
The design employs two types of components with identical terminal sequences and light emitter arrangements along the edges of a light guide, allowing for reduced component diversity and simplified manufacturing by using the same components in multiple positions, with flat cables connecting them in a way that avoids interference and simplifies wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple components with different structures are used for LEDs at different locations, then the lighting requirements can be met, but the number of components and manufacturing process complexity increases
Solution Approach 1:
The patent applies universality by designing components that can be used in multiple positions along the light guide. The same component structure can be placed at different locations (first position, second position, third position) to serve different lighting requirements, thereby reducing component diversity while maintaining illumination efficiency.
Solution Approach 2:
The patent applies local quality by allowing different numbers of light emitters in components placed at different locations along the light guide. While the overall component structure remains universal, the specific implementation varies locally based on lighting requirements at each position, optimizing illumination without requiring entirely different component designs.
2Illumination intensity
If multiple components with different structures are used, then location-specific lighting can be optimized, but manufacturing cost and process complexity increase
Solution Approach 1:
The patent uses universality to create a standardized component that can be manufactured once and deployed at multiple positions along the light guide. This reduces manufacturing complexity and cost while still allowing optimization at different locations through variations in component placement and configuration rather than requiring different component designs.
3Device complexity
If flat cables are used to connect components, then wiring complexity is reduced, but potential interference between cables must be avoided
Solution Approach 1:
The patent applies dimensionality change by routing flat cables in different layers or planes to connect components at different positions along the light guide. By utilizing the third dimension (depth/thickness) for cable routing, the design avoids interference between cables while maintaining simple flat cable connections, thus reducing wiring complexity without compromising electrical isolation.
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 approach reduces the number of components and manufacturing costs while maintaining efficient light emission and connectivity, facilitating easier assembly and reducing the complexity of the manufacturing process.
Implementation Method 1
a plurality of light emitters 10... The light emitters are arranged on the base portion to face the edge of the light guide
Data Source
AI summary
According to one embodiment, a video display device includes a housing, a display module, a light guide, two first components, and two second components. The housing houses at least part of the display module. The light guide is located opposite the display screen of the display module with respect to the display module. The first and the second components each include a base portion, a plurality of light emitters, and a connector. The base portion is arranged along an edge of the light guide. The light emitters are arranged on the base portion to face the edge of the light guide. The connector includes a plurality of terminals including anode and cathode electrically connected to the light emitters. The terminals are arranged in the same sequence in the first components and in the second components.