Backlight Module Bendable Flap Groove Fixation

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Solution Overview

Problem

The existing backlight modules for liquid crystal display devices face challenges in fixing the optical diaphragm without a plastic frame or frame sealant, which hinders the achievement of a super narrow frame design.

Innovation Solution

A backlight module design featuring a backplane with grooves, where the optical diaphragm's ends or sides are connected with bendable flaps that pass through these grooves and attach to the backplane, allowing the optical diaphragm to be fixed without a plastic frame or sealant, thereby achieving a super narrow frame structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If plastic frame or frame sealant is removed to reduce frame width, then the frame width is reduced, but the optical diaphragm cannot be fixed

Engineering Contradiction:

Improveframe widthVSAvoidoptical diaphragm fixation

Core Design Contradiction:

Length of stationary objectVSReliability

Solution Approach 1:

The patent introduces a bendable flap as an intermediary component that connects the optical diaphragm to the backplane. This flap acts as a mediator that enables fixation without requiring a plastic frame or frame sealant, thus achieving both narrow frame width and reliable optical diaphragm fixation simultaneously

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The fixation function is segmented from the traditional plastic frame structure. Instead of relying on a complete frame assembly, the patent uses discrete bendable flaps that can be independently attached to the backplane, allowing the optical diaphragm to be fixed while maintaining a narrow frame design

Inventive Principle:

Principle #1Segmentation

2Reliability

If plastic frame is used to fix optical diaphragm, then the optical diaphragm can be fixed, but the frame width increases

Engineering Contradiction:

Improveoptical diaphragm fixationVSAvoidframe width

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The patent extracts the essential fixation function from the plastic frame structure. By removing the plastic frame and retaining only the necessary fixation capability through bendable flaps, the design achieves optical diaphragm fixation with minimal frame width

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The bendable flap is designed as a flexible component that can be bent and attached to the backplane. This flexible structure provides adequate fixation for the optical diaphragm while occupying minimal space, thus achieving both reliable fixation and narrow frame width

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS10247986B2Backlight module

Publication Date: 2019.04.02 WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD

AI summary

Disclosed is a backlight module. The backlight module includes a backplane. The backplane is provided with a groove therethrough. Two sides and/or two ends of an optical diaphragm of the backlight module each are connected with a bendable flap which passes through the groove and is attached to the backplane. The backlight module has a simple structure without a plastic frame or a frame sealant, and an optical diaphragm in the backlight module can be fixed. A super narrow frame of the backlight module can be realized.