Splice Panel Assembly Side Electrode Backlight Module

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Solution Overview

Problem

The challenge in large-size backlight modules for LCD displays is ensuring consistent light emission while simplifying the structure of interconnected light-emitting panels, as existing methods require complex electrode arrangements and thicker substrates, which hinder thinning and cost reduction.

Innovation Solution

The solution involves a splice panel assembly where light-emitting panels have connection electrodes on the side faces, allowing for electrical connection without parallel alignment, reducing the need for additional space on the front face and enabling thinner panels with improved uniformity and simplified assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connection electrodes are arranged on the front face of the base substrate to ensure electrical connection between adjacent light-emitting panels, then the electrical connection is reliable, but the front face area is reduced and the dark region between panels increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidfront face area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent moves the connection electrodes from the front face (2D plane) to the side face (different dimension/surface) of the base substrate. This dimensional transition allows electrical connection without occupying front face area, thereby eliminating the dark region problem while maintaining connection reliability.

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

2Stability of the object's composition

If the base substrate is made thicker to accommodate parallel arrangement of front face and electrode setting faces, then the structural stability is improved, but the panel thickness increases and thinning is hindered

Engineering Contradiction:
Improvestructural stabilityVSAvoidpanel thickness
Core Design Contradiction:
Stability of the object's compositionVSLength of moving object

Solution Approach 1:

The patent relocates the electrode setting face from a parallel plane to the side face of the base substrate. This eliminates the need for thick substrates to accommodate parallel face arrangements, enabling panel thinning while maintaining structural stability through proper side face electrode placement.

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

3Illumination intensity

If complex electrode arrangements are used to ensure light-emitting consistency in large-size backlight modules, then the light uniformity is improved, but the device complexity increases and cost rises

Engineering Contradiction:
Improvelight uniformityVSAvoidelectrode arrangement complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent extracts the connection electrodes from the front face electrode arrangement system and places them on the side faces. This separation simplifies the electrode arrangement by eliminating the need for complex parallel face configurations and multiple electrodes on the front face, reducing overall device complexity while maintaining light uniformity.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11971154B2Splice panel assembly, backlight module and display device
Publication Date: 2024.04.30 HUBEI YANGTZE IND INNOVAION CENT OF ADVANCED DISPLAY CO LTD
  • US11971154B2 patent drawing
  • US11971154B2 patent drawing
  • US11971154B2 patent drawing

AI summary

Provided are a splice panel assembly, a backlight module and a display device. The splice panel assembly includes a plurality of light-emitting panels. Each light-emitting panel includes a base substrate. The front face of the base substrate is provided with a plurality of light-emitting elements arranged in an array. The side face of the base substrate is provided with at least one connection electrode. The light-emitting elements are electrically connected to the at least one connection electrode. The front face is connected to and not parallel to the side face. Two adjacent light-emitting panels are electrically connected to each other by the at least one connection electrode.