Edge-Lit Backlight Module Vertical Assembly Positioning

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Solution Overview

Problem

Conventional edge-lit backlight modules require manual installation with a risk of damage and reduced yield due to the need for oblique installation, making automation challenging and assembly performance suboptimal.

Innovation Solution

An edge-lit backlight module design featuring a frame body with first positioning portions and a light-emitting unit with second positioning portions, including notches and extension portions, allowing for engagement and automated assembly in a vertical direction, enhancing yield and performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the light-emitting unit is installed by tilting at an angle to detour the engaging structure, then the installation can be completed, but the risk of damage increases and automation cannot be implemented

Engineering Contradiction:
Improveinstallation feasibilityVSAvoiddamage risk
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the installation dimension from oblique/tilted to vertical by redesigning the engaging structure. The light-emitting unit is positioned to engage with the frame body in a vertical direction, eliminating the need for tilting and enabling automated assembly while reducing damage risk to the light-emitting elements.

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

2Ease of manufacture

If the light-emitting unit is installed by tilting at an angle, then the engaging structure can be detoured, but the assembly process cannot be automated

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidassembly automation
Core Design Contradiction:
Ease of manufactureVSExtent of automation

Solution Approach 1:

The patent enables automation by changing the assembly dimension from oblique to vertical. The redesigned engaging structure allows the light-emitting unit to be installed vertically, which can be easily automated using robotic assembly equipment, thereby improving assembly efficiency and consistency.

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

3Ease of manufacture

If manual installation with tilting is used, then the light-emitting unit can be installed, but product yield and assembly performance are reduced

Engineering Contradiction:
Improveinstallation capabilityVSAvoidassembly performance
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent improves assembly performance by transitioning from manual oblique installation to automated vertical installation. The vertical engagement direction allows for faster, more precise assembly operations, increasing productivity and reducing the risk of damage to light-emitting elements during the assembly process.

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

Data Source

PatentUS9772537B2Edge-lit backlight module
Publication Date: 2017.09.26 INNOLUX CORP
  • US9772537B2 patent drawing
  • US9772537B2 patent drawing
  • US9772537B2 patent drawing

AI summary

An edge-lit backlight module according to this disclosure includes a frame body and a light-emitting unit. The frame body includes a bottom portion, a wall portion and at least one first positioning portion. The wall portion is connected with the bottom portion, and the first positioning portion is located at least one of the bottom portion and the wall portion. The light-emitting unit includes a circuit board and a plurality of light-emitting elements disposed on the circuit board. The circuit board includes at least one second positioning portion. The second positioning portion includes a notch and an extension portion extending from the circuit board. The first positioning portion and the second positioning portion engage with each other to connect the light-emitting unit with the frame body.