Spliced Display Panel LED Bridge Structure for Gap Elimination

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Solution Overview

Problem

Traditional LCD splicing screens suffer from visible gaps, while Mini-LED and Micro-LED panels, although improving in resolution, are costly and immature in small pitch configurations, necessitating a solution to eliminate gaps effectively and enhance display quality.

Innovation Solution

A spliced display panel design featuring a light-emitting diode substrate with a flexible circuit board and bending portions that supports the carry portion, overlapping to shield gaps between adjacent panels, improving flatness and resolution by strategically arranging light-emitting diodes and connecting extension portions to driving devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If LCD panels are spliced to form large size displays, then cost is reduced and resolution is maintained, but gaps appear between panels affecting visual effect

Engineering Contradiction:
ImprovecostVSAvoidgap between panels
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

A light-emitting diode substrate is introduced as an intermediary component between adjacent LCD panels. The substrate includes a carry portion with light-emitting diodes arranged to match the resolution of the LCD panels, and bending portions that extend into the gaps between panels to visually eliminate the gaps by emitting light that blends with the display content.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The solution transitions from a two-dimensional panel arrangement to a three-dimensional structure by adding the light-emitting diode substrate that bends and extends into the gap region. The substrate includes bending portions that create a spatial extension into the gap area, and the light-emitting diodes are arranged in multiple regions (first, second, and third regions) at different positions to address the gap from multiple dimensional perspectives.

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

2Shape

If Mini-LED or Micro-LED panels are used to eliminate gaps, then visual effect is improved, but cost increases and manufacturing maturity is insufficient

Engineering Contradiction:
Improvegap eliminationVSAvoidcost
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The light-emitting diode substrate is segmented into functional regions: a carry portion for mounting light-emitting diodes, bending portions for extending into gaps, and supporting portions for structural stability. The light-emitting diodes are further segmented into multiple regions (first, second, and third regions) with different arrangements and densities, allowing optimized placement that reduces material usage compared to full Mini-LED or Micro-LED panels while still achieving gap elimination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the light-emitting diode substrate have different light-emitting diode arrangements and densities. The first region has light-emitting diodes arranged in a first pattern, the second region has a second pattern, and the third region has a third pattern. This local variation allows the structure to provide sufficient light emission for gap elimination in critical areas while reducing the overall number of light-emitting diodes needed, thereby lowering cost compared to uniform high-density Mini-LED or Micro-LED panels.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If light-emitting diodes are densely arranged to improve resolution, then visual effect is enhanced, but flatness of the substrate decreases

Engineering Contradiction:
ImproveresolutionVSAvoidflatness
Core Design Contradiction:
Measurement precisionVSShape

Solution Approach 1:

The light-emitting diode substrate incorporates bending portions that introduce controlled curvature to accommodate the arrangement of light-emitting diodes in different regions. The substrate transitions from a flat configuration to a curved configuration, with the bending portions allowing the carry portion to maintain proper alignment and spacing of light-emitting diodes for high resolution while the supporting portions provide structural foundation. This curvature enables dense light-emitting diode arrangement without compromising the overall structural integrity and flatness where required.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

Visually eliminates gaps between spliced display panels, enhances the flatness and resolution of the display, and reduces the load on driving devices, while maintaining cost-effectiveness by using non-metallic materials and optimized light-emitting diode placement.

Implementation Method 1

a light-emitting diode substrate including a flexible circuit board and a plurality of light-emitting diodes

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Implementation Method 2

the carry portion of the light-emitting diode substrate is disposed on the first supporting portion and the second supporting portion, and shields the gap

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentUS12099268B2Spliced display panel and spliced display device
Publication Date: 2024.09.24 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
  • US12099268B2 patent drawing
  • US12099268B2 patent drawing
  • US12099268B2 patent drawing

AI summary

A spliced display panel and a spliced display device are provided. At least two display panels are spliced to form a gap. The light-emitting diode substrate is disposed between two adjacent display panels. The first supporting portion of the light-emitting diode substrate is disposed on one of the display panels, and the second supporting portion of the light-emitting diode substrate is disposed on another one of the display panels. The carry portion is disposed on the first supporting portion and the second supporting portion to shield the gap.