Backlight Module Wire Terminal Integration for Ultra-Thin LCD TVs
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Solution Overview
Problem
The challenge in producing ultra-thin LCD TVs is the thickness limitation imposed by large wire terminals and connectors, high power consumption, and the need for extensive circuit areas, which results in a thick backlight module and affects the aesthetic appearance due to exposed reinforcement ribs and wiring.
Innovation Solution
The backlight module design includes wire terminals and LED lamps on opposite surfaces of a lamp board, with a receptacle structure and wire routing on the backplane to reduce connection wires and circuit areas, allowing the backplane to serve as the back cover, thereby minimizing thickness and enhancing aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire terminals and connectors are used to electrically connect LED lamps, then electrical connection is achieved, but the thickness of the backlight module increases and aesthetic appearance deteriorates
Solution Approach 1:
The wire terminal is integrated directly onto the lamp board, merging the connection component with the substrate. This eliminates the need for separate connectors and reduces overall thickness while maintaining reliable electrical connection between LED lamps and the driving circuit.
Solution Approach 2:
The wire terminal is designed with a planar structure that lies flat on the lamp board surface, transitioning from a three-dimensional connector structure to a two-dimensional trace pattern. This dimensional change allows the connection to be made within the plane of the lamp board, minimizing thickness in the perpendicular direction.
2Strength
If reinforcement ribs and wiring are exposed on the backplane, then structural support is provided, but aesthetic appearance deteriorates
Solution Approach 1:
The backplane surface is treated with a uniform cosmetic coating or finish that masks the appearance of reinforcement ribs and wiring. This visual treatment makes the structural elements blend with the surrounding surface, transforming the aesthetic quality from exposed industrial features to a uniform, clean appearance suitable for consumer electronics.
3Device complexity
If wire terminals are placed on the lamp board, then electrical connection is simplified, but circuit area increases
Solution Approach 1:
The wire terminal utilizes thin film conductive traces deposited directly onto the lamp board substrate. This thin-film approach minimizes the area occupied by the connection structure compared to traditional discrete wire terminals and connectors, reducing the overall circuit footprint while maintaining electrical functionality.
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 design reduces the overall thickness of the backlight module, minimizes the need for additional back covers, and improves the aesthetic appeal of the TV by embedding wire terminals and driving modules within the backplane, facilitating the production of thinner, more aesthetically pleasing ultra-thin LCD TVs.
Implementation Method 1
a plurality of light emitting diode (LED) lamps
Implementation Method 2
light emitting diode (LED) lamps
Data Source
AI summary
A backlight module and a display terminal are disclosed. As an example, the backlight module includes at least one lamp board, a plurality of LED lamps, and at least one wire terminal. The at least one lamp board includes a first surface and a second surface opposite to the first surface. The plurality of LED lamps is arranged in an array on the first surface. The at least one wire terminal is disposed on the second surface and electrically connected to the plurality of LED lamps.