Slim Bezel LCD Module Rear-Facing Fixing Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional liquid crystal display devices have a wide bezel and increased thickness due to the screwing mechanism used to fix the liquid crystal display module, which hinders bezel slimming and device thinning efforts.

Innovation Solution

A slim bezel liquid crystal display device design featuring raised portions on the liquid crystal display module that fit into retention sections in the rear enclosure, allowing for secure fixation without the need for wide bezels, enabling easy assembly and disassembly for maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the liquid crystal display module is fixed by screwing from the front side to the rear side, then the liquid crystal display module can be securely fixed in the rear enclosure, but the bezel width is expanded and the display zone is reduced

Engineering Contradiction:

Improvefixing strengthVSAvoiddisplay zone

Core Design Contradiction:

StrengthVSArea of stationary object

Solution Approach 1:

The patent inverts the conventional fixing direction by moving from the rear side to the front side. The fixing mechanism is relocated to the front surface where the fixing portions engage with corresponding recesses in the front enclosure, eliminating the need for rear-side screw mounting and allowing for a narrower bezel design.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent transitions from a through-hole screw mounting approach to a surface-level engagement mechanism. The fixing portions with protrusions engage with recesses having corresponding grooves on the front surface, changing the dimension of the fixing action from depth-oriented (through the enclosure) to surface-oriented (at the front face).

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Strength

If the liquid crystal display module is fixed by screwing from the front side to the rear side, then the liquid crystal display module can be securely fixed in the rear enclosure, but the overall thickness of the liquid crystal display device is increased

Engineering Contradiction:

Improvefixing strengthVSAvoiddevice thickness

Core Design Contradiction:

StrengthVSLength of stationary object

Solution Approach 1:

The patent extracts the screw mounting function from the rear enclosure structure and relocates it to the front enclosure. The fixing portions and recesses are positioned on the front surface, eliminating the need for deep screw threads that would increase the overall device thickness.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent inverts the fixing direction and location, moving the mounting mechanism from the rear side to the front side. This inversion allows the fixing structure to be contained within the front enclosure's thickness rather than extending through the entire device depth.

Inventive Principle:

Principle #13The other way round (Inversion)

3Strength

If the liquid crystal display module is fixed by screwing from the front side to the rear side, then the liquid crystal display module can be securely fixed in the rear enclosure, but the structure becomes complex and maintenance becomes difficult

Engineering Contradiction:

Improvefixing strengthVSAvoidfixing structure complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent segments the fixing mechanism into discrete fixing portions with protrusions and corresponding recesses with grooves. This segmentation creates modular, easily manufacturable components that simplify the overall structure compared to integrated screw mounting systems.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent simplifies the structure by inverting the approach from active screw threading to passive geometric interlocking. The protrusion-groove engagement provides secure fixing through simple geometric shapes rather than complex threaded fasteners.

Inventive Principle:

Principle #13The other way round (Inversion)

4Strength

Engineering Contradiction:

Improvefixing strengthVSAvoidmaintenance ease

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The patent designs the fixing portions and recesses with built-in alignment features that guide the liquid crystal display module into the correct position during assembly. This preliminary alignment action prevents misinstallation and facilitates future maintenance by ensuring consistent, error-free reassembly.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the fixing mechanism into separable components that can be easily engaged and disengaged. The protrusion-groove interface allows for tool-free or minimal-tool assembly and disassembly, significantly improving maintenance ease compared to screw removal.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS9389450B2Slim bezel liquid crystal display device including liquid crystal display module receivable and positionable in rear enclosure through mating between portions of sid boards thereof

Publication Date: 2016.07.12 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD

AI summary

A slim bezel liquid crystal display device includes a rear enclosure, a front enclosure mating the rear enclosure, and a liquid crystal display module arranged inside the rear enclosure. The quid crystal display module has two opposite sides each forming a raised portion that includes a constraint section and an extension section extending from a middle portion of a free end of the constraint section. The rear enclosure forms retention sections in the form of recesses corresponding to the extension sections, such that the retention sections are respectively receivable in the recesses so as to fix the liquid crystal display module in the rear enclosure.