Backlight Module Supporting Structure Rotational Clamping Mechanism

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Solution Overview

Problem

Conventional backlight module supporting structures suffer from insufficient structural strength, high manufacturing costs, and complex designs, leading to increased costs and limited applicability.

Innovation Solution

A supporting structure for backlight modules featuring a fixing component with a through-hole and opening, combined with a supporting component including a supporting pin, block, plate, and protrusion, which clamps onto the fixing component using a simple rotational mechanism, enhancing strength and reducing manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rotating supporting pin structure with latches is used, then the supporting structure can be fixed onto the back plate, but the structural strength is insufficient and the latch is easily broken

Engineering Contradiction:

Improvestructural strengthVSAvoidlatch durability

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The invention integrates the supporting pin and fixing component into a unified structure where the supporting pin itself forms the fixing component, eliminating separate latch mechanisms. This merging strengthens the overall structure by removing weak connection points while maintaining the fixing function through the pin's own geometric features.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention extracts and eliminates the vulnerable latch mechanism from the supporting structure, replacing it with a more robust design where the supporting pin directly engages with the back plate through its own integrated fixing features, thereby removing the source of structural weakness.

Inventive Principle:

Principle #2Taking out (Extraction)

2Ease of manufacture

If a three-piece rotating supporting pin structure is used, then the supporting pin can be fixed onto the back plate, but the structure is complicated and manufacturing cost increases

Engineering Contradiction:

Improvemanufacturing costVSAvoidsupporting pin structure

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The invention combines multiple functional elements (supporting pin, fixing mechanism, and positioning features) into a single integrated component. This reduces the number of parts from three separate pieces to one unified structure, simplifying manufacturing and reducing assembly steps while maintaining all necessary functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The supporting pin is designed to perform multiple functions simultaneously: it provides mechanical support, enables rotation, ensures positioning through integrated features, and maintains fixing capability. This multi-functionality eliminates the need for separate components, reducing complexity and manufacturing cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of manufacture

If a lamp guide device with guide connecting holes and concavities is used, then the device can support optical sheets, but the manufacturing process is complicated and cost increases

Engineering Contradiction:

Improvemanufacturing processVSAvoidlamp guide device structure

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The invention merges the lamp guide device's supporting function with the supporting pin structure, where the pin itself serves as the guide and support mechanism. This eliminates the need for separate guide connecting holes and concavities, simplifying the manufacturing process and reducing structural complexity.

Inventive Principle:

Principle #5Merging (Combining)

4Volume of stationary object

If conventional supporting structures are used, then the optical sheets can be supported, but the volume is large and mold development cost increases

Engineering Contradiction:

Improvesupporting structure volumeVSAvoidmold development cost

Core Design Contradiction:

Volume of stationary objectVSEase of manufacture

Solution Approach 1:

The invention extracts and eliminates unnecessary voluminous elements from the supporting structure, retaining only the essential functional features needed for support and fixing. This results in a more compact design that reduces overall volume and consequently lowers mold development costs.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The supporting pin and fixing component are designed with thin, efficient geometric features rather than bulky structures. This approach maintains structural integrity while minimizing volume, reducing material usage and mold complexity.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS7604390B2Supporting structure and fixing component having a through-hole and opening for pin structure engagement and backlight module using the same

Publication Date: 2009.10.20 AU OPTRONICS CORP

AI summary

A supporting structure is applied to a backlight module including several optical sheets. The supporting structure includes a fixing component and a supporting component. The fixing component has a through-hole and an opening connected to each other. The supporting component includes a supporting pin, a block, a plate and a protrusion. The supporting pin has a top end for supporting the optical sheets and a bottom end at which the block is disposed. The plate is disposed on the supporting pin. The protrusion is disposed on the plate and faces the bottom end. After the block goes through the through-hole and rotates an angle, the plate and the block respectively press against upper and lower surfaces of the fixing component for clamping the fixing component. The protrusion is engaged in the opening for positioning the supporting component, so that the supporting component is fixed onto the fixing component.