Backlight Unit Socket Connector Preventing Wire Interference

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Solution Overview

Problem

The existing backlight units for LCD modules face issues with non-uniform light emission due to interference and voltage leakage between exposed wires, which affects the performance of fluorescent lamps.

Innovation Solution

A backlight unit design featuring a bottom frame with a socket connector on the backside and a plug connector on the backlight driving circuit board, where the socket connector is inserted through a hole in the bottom frame and connected to the plug connector, ensuring electrical connection without wire exposure and preventing interference or leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wires are exposed for electrical connection, then ease of connection is improved, but reliability deteriorates due to interference and voltage leakage

Engineering Contradiction:

Improveease of connectionVSAvoidreliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces a connector as an intermediary component between the wire and the circuit board. The connector includes a receptacle that receives the wire and a terminal that makes electrical contact, serving as a mediator that eliminates direct wire exposure while maintaining electrical connection functionality. This resolves the contradiction by providing both ease of connection through the receptacle and reliability by preventing wire exposure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If socket connector is inserted into through hole of bottom frame, then reliability is improved by preventing wire exposure, but device complexity increases

Engineering Contradiction:

ImprovereliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the connector with the bottom frame by inserting the socket connector directly into a through hole of the bottom frame, making the bottom frame serve dual functions as both structural support and connector housing. This integration reduces device complexity by eliminating separate connector components while maintaining reliability through the enclosed connection structure.

Inventive Principle:

Principle #5Merging (Combining)

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 configuration ensures uniform light emission from fluorescent lamps by preventing wire interference and voltage leakage, enhancing the overall performance and reliability of the backlight unit.

Implementation Method 1

Light from the fluorescent lamp 24 is emitted by applying an alternating current voltage waveform through a wire 36 that extends from an electrode (not show) in the fluorescent lamp 24.

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS7854541B2Backlight unit with socket connector, and liquid crystal display module using the same

Publication Date: 2010.12.21 LG DISPLAY CO LTD

AI summary

A backlight unit with socket connecter includes: a bottom frame having a topside and a backside; at least one lamp on the topside of the bottom frame; a socket connector disposed on a backside of the bottom frame, the socket connector being connected to the lamp; and a backlight circuit board having a plug connector connected to the socket connector.