Modular Light Bar Interconnection for Display Backlight Assembly
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Solution Overview
Problem
The increasing size of displays requires larger light bars in direct backlight modules, which are often assembled from multiple light bars with different layouts, increasing management costs and complicating assembly due to the varied designs.
Innovation Solution
A light emitting module is created by connecting multiple light bars with the same layout using a substrate with specific pin configurations and wire connections, allowing for flexible assembly and interconnection to achieve a predetermined size, thereby simplifying management and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple light bars with different layouts are assembled to achieve predetermined size, then the display size requirement is met, but the management cost increases and assembly becomes difficult
Solution Approach 1:
The light bar is divided into multiple segments (first light emitting module, second light emitting module, third light emitting module) that can be independently manufactured with identical layouts, then assembled together to achieve the required display size. This segmentation allows standardization of each module while flexibly scaling the overall size.
Solution Approach 2:
The patent creates universal light emitting modules with identical layouts that can serve multiple positions in the display assembly. The first, second, and third light emitting modules all share the same layout configuration, making them interchangeable and simplifying both management and assembly processes.
2Area of stationary object
If multiple light bars with different layouts are used to meet display size requirements, then the area coverage is sufficient, but the management cost increases
Solution Approach 1:
The patent standardizes the layout parameters (pin configurations, wire arrangements, component positions) across all light emitting modules while allowing the physical dimensions to be adjusted. This parameter standardization enables bulk manufacturing with reduced management costs, while still meeting different area requirements through modular assembly.
3Area of stationary object
If light bars are assembled from multiple segments to achieve predetermined size, then the size flexibility is improved, but the assembly difficulty increases
Solution Approach 1:
The light emitting modules are pre-configured with standardized pin layouts (first connector with first, second, third, fourth pins; second connector with fifth, sixth, seventh, eighth pins) and pre-arranged wire connections during manufacturing. This preliminary standardization eliminates the need for complex on-site assembly operations, making the assembly process straightforward despite the modular segmented structure.
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 use of uniformly laid out light bars reduces management costs and simplifies assembly by enabling flexible and efficient interconnection of light bars, resulting in a cost-effective and easier assembly process for larger display backlight modules.
Implementation Method 1
a plurality of light emitting diodes disposed on the substrate
Data Source
AI summary
A light bar is disclosed which includes a substrate, plural LEDs disposed on the substrate, a first connector and a second connector disposed on opposite sides of the substrate, a first wire, a second wire, a third wire, and a fourth wire. The first connector sequentially includes a first pin, a second pin, a third pin, and a fourth pin. The second connector sequential includes a fifth pin, a sixth pin, a seventh pin, and an eighth pin. The first wire connects the first pin to the second pin. The second wire connects the third pin to the fifth pin. The third wire connects the sixth pin to the seventh pin. The fourth wire connects the fourth pin to the eighth pin. A light emitting module using the light bar is also disclosed.