Backlight Assembly Driving Unit Integration for LCD Manufacturing
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Solution Overview
Problem
The existing backlight assemblies for LCD devices require connection wires between light source driving modules and light-emitting modules, which reduces manufacturing efficiency and increases costs due to additional components like wires, fixing members, and side molds.
Innovation Solution
A backlight assembly design that eliminates the need for connection wires by integrating a driving unit within the receiving container, allowing electrical connection between light-emitting modules and the driving unit, and using module connecting units to connect adjacent light-emitting base boards, which are covered by a side mold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection wires and fixing members are used to electrically connect the light source driving module and light-emitting modules, then reliable electrical connection is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the light source driving module with the receiving container by integrating it into the bottom plate structure. The driving module is positioned in a groove formed on the bottom plate, eliminating the need for separate connection wires and fixing members. This integration maintains reliable electrical connection while significantly reducing assembly complexity and the number of components required.
2Reliability
If connection wires and additional components are used, then electrical connection is achieved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple functions into integrated structures: the bottom plate serves as both the container base and the mounting structure for the driving module, while the groove in the bottom plate provides both mechanical support and electrical connection pathways. This integration eliminates the need for separate connection wires, fixing members, and side molds, thereby reducing component count and manufacturing cost while maintaining connection reliability.
3Reliability
If multiple components (wires, fixing members, side molds) are used, then electrical connection and structural support are achieved, but manufacturing efficiency decreases
Solution Approach 1:
The patent integrates the light source driving module directly into the receiving container's bottom plate, eliminating the need for separate assembly steps involving connection wires, fixing members, and side molds. The groove structure in the bottom plate provides automatic positioning and mechanical support, streamlining the assembly process and significantly improving manufacturing efficiency while maintaining assembly reliability.
4Reliability
If wires extend along the outer face of the side part, then electrical connection is achieved, but the number of components and assembly steps increases
Solution Approach 1:
The patent positions the light source driving module directly within the receiving container on the bottom plate, allowing electrical connection through integrated pathways rather than external wires extending along the side part. This integration eliminates the need for separate fixing members and side molds, reducing the total number of components while maintaining reliable electrical connection between the driving module and light-emitting modules.
Data Source
AI summary
A backlight assembly includes a receiving container, a plurality of light-emitting modules, a driving unit and a side mold. The receiving container includes a bottom plate and a side part formed on a peripheral edge portion of the bottom plate. Light-emitting modules of the plurality of light-emitting modules are disposed in the receiving container. The light-emitting modules include a light-emitting base board and a plurality of light-emitting diodes (“LEDs”) disposed on a first side of the light-emitting base board. The driving unit is disposed in the receiving container proximate to a lower portion of the peripheral edge portion of the bottom plate. The driving unit is electrically connected to the light-emitting modules to control an operation of the plurality of LEDs. The side mold is disposed on the lower portion of the peripheral edge portion of the bottom plate and covers the driving unit.