Light Bar Connector Positioning for Thin Display Back Casing

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Solution Overview

Problem

Conventional light bars in liquid crystal display devices require a thick, curved back casing to accommodate a connector, increasing the overall thickness and hindering miniaturization due to the connector's edge placement.

Innovation Solution

A light bar with a frame module comprising multiple frames that allows the connector to be positioned between the frames, eliminating the need for edge accommodation, thereby reducing the overall thickness by integrating the connector within a curved space of the back casing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the connector is disposed at the edge of the circuit board, then the connector can be easily connected to the system board, but the back casing must have increased edge thickness to accommodate the connector, increasing the overall device thickness

Engineering Contradiction:
Improveconnector connectionVSAvoidback casing thickness
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The connector is repositioned from the edge of the circuit board to the middle portion, utilizing the vertical dimension (thickness direction) by routing it through the curved space of the back casing. This dimensional transition allows the connector to be accommodated without increasing the horizontal edge thickness of the back casing, thereby resolving the contradiction between ease of connection and device thickness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the back casing has increased edge thickness to accommodate the connector, then the connector can be properly positioned, but the overall thickness of the display device increases, hindering miniaturization

Engineering Contradiction:
Improveconnector accommodationVSAvoiddisplay device thickness
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The back casing is segmented into different thickness regions: a thick middle portion with a curved space to accommodate the connector, and thin edge portions that do not require additional thickness. This segmentation allows the connector to be accommodated in the middle portion without increasing the overall device thickness, as the edges remain thin.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If the circuit board is disposed in a single frame, then the structure is simple, but the connector must be at the edge requiring thick back casing, increasing device complexity

Engineering Contradiction:
Improveframe structureVSAvoidback casing thickness
Core Design Contradiction:
Device complexityVSLength of stationary object

Solution Approach 1:

The frame structure is segmented into multiple frames (first frame and second frame) that are disposed side by side. The circuit board is divided such that one end is in the first frame and the other end is in the second frame. This segmentation allows the connector to be positioned in the middle portion between the frames, eliminating the need for edge placement and thick back casing, thereby reducing device complexity.

Inventive Principle:
Principle #1Segmentation

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 effectively minimizes the display device's thickness by allowing the connector to be placed internally, facilitating a more compact design without increasing the edge thickness of the back casing.

Implementation Method 1

a plurality of light emitting units, wherein the light emitting units are disposed on the circuit board

Methodology Applied
Scientific EffectLight emitting: Light Emitting Diode

Data Source

PatentUS10983266B2Light bar and display device
Publication Date: 2021.04.20 QISDA CORP
  • US10983266B2 patent drawing
  • US10983266B2 patent drawing
  • US10983266B2 patent drawing

AI summary

A light bar includes a circuit board, a plurality of light emitting units, a connector and a frame module. The light emitting units are disposed on the circuit board. The connector is disposed on the circuit board. The frame module includes a plurality of frames arranged side by side. Each of the frames includes an accommodating recess. The circuit board is accommodated in the accommodating recess of each frame. The connector is located between a first end and a second end of the frame module, wherein the first end is opposite to the second end.