Rotatable Platform Alignment Apparatus for LCD Assembly

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Solution Overview

Problem

The manual assembly process of Liquid Crystal Display (LCD) with a Back Light Unit (BLU) or Cover Glass (CG) is inefficient, prone to misalignment, and results in low product yield and high breakage ratios, especially as products become thinner and more refined.

Innovation Solution

An apparatus comprising a rotatable platform, an adjustment platform, and a turnover unit with holding units, elastic down-press units, and micrometers for precise alignment and assembly, utilizing vacuum adsorption and sliding chutes to facilitate accurate positioning and assembly without consumable materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual operation is used for assembling LCD with BLU or CG, then operation flexibility is maintained, but alignment precision deteriorates and misalignment occurs

Engineering Contradiction:
Improvealignment precisionVSAvoidoperation complexity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical operation with an automated alignment apparatus that uses a rotatable platform, adjustment platform, and turnover unit to achieve precise alignment. The system substitutes human hands with mechanical structures including holding units, elastic down-press units, and micrometers that can precisely control and maintain alignment positions without the variability and imprecision of manual operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The alignment apparatus enables self-alignment through its structured design where the rotatable platform and adjustment platform work together with holding units to automatically maintain precise positioning. The elastic down-press units and micrometers provide self-adjusting capabilities that ensure accurate alignment without requiring continuous manual intervention, allowing the system to maintain precision autonomously during the assembly process.

Inventive Principle:
Principle #25Self-service

2Productivity

If manual operation is used for assembling LCD components, then equipment complexity is reduced, but productivity deteriorates

Engineering Contradiction:
Improveproduction efficiencyVSAvoidapparatus structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent divides the assembly system into distinct functional modules: a rotatable platform for holding one component, an adjustment platform for holding another component, a turnover unit for rotating the rotatable platform, holding units for securing components, elastic down-press units for applying pressure, and micrometers for precise adjustment. This segmentation allows each module to perform its specific function efficiently, improving overall productivity while keeping individual components relatively simple and manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rotatable platform serves multiple functions: it holds LCD components, enables rotation for alignment with BLU or CG, and works配合 with the adjustment platform. The holding units can secure different types of components (LCD, BLU, CG), and the elastic down-press units can apply pressure during both alignment and assembly phases. This multi-functionality reduces the need for separate dedicated devices for each operation, improving productivity without proportionally increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If manual operation is used for assembling LCD components, then device complexity is reduced, but manufacturing precision deteriorates

Engineering Contradiction:
Improvealignment accuracyVSAvoidapparatus structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical operation with an automated alignment apparatus that uses a rotatable platform, adjustment platform, and turnover unit to achieve precise alignment. The system substitutes human hands with mechanical structures including holding units, elastic down-press units, and micrometers that can precisely control and maintain alignment positions without the variability and imprecision of manual operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent incorporates micrometers for fine adjustment and elastic down-press units that apply pressure beyond what is strictly necessary for holding, ensuring that components remain firmly in place during alignment. This excessive action in terms of adjustment precision and pressing force ensures that even the slightest misalignment is corrected and that components maintain perfect alignment throughout the assembly process, thereby achieving high manufacturing precision.

Inventive Principle:
Principle #16Partial or excessive action

4Reliability

If manual operation is used for assembling LCD components, then operation simplicity is maintained, but product yield deteriorates

Engineering Contradiction:
Improveproduct yieldVSAvoidoperation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The alignment apparatus enables self-alignment through its structured design where the rotatable platform and adjustment platform work together with holding units to automatically maintain precise positioning. The elastic down-press units and micrometers provide self-adjusting capabilities that ensure accurate alignment without requiring continuous manual intervention, allowing the system to maintain precision autonomously during the assembly process and thereby improving product yield.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The micrometers in the apparatus provide precise measurement and feedback on the alignment status of components. By incorporating these measurement devices, the system can detect and correct alignment deviations in real-time, ensuring that only properly aligned components are assembled. This feedback mechanism significantly improves product yield by preventing misaligned assemblies that would otherwise occur with manual operation.

Inventive Principle:
Principle #23Feedback

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

The apparatus enables accurate alignment and assembly of BLU/CG with LCD, improving product yield and production efficiency while reducing breakage ratios and simplifying the operation and maintenance process.

Implementation Method 1

the rotatable platform and the adjustment platform are provided with a first holding unit and a second holding unit, respectively, which are configured to hold objects to be aligned and assembled with each other, respectively

Methodology Applied
Scientific EffectVacuum adsorption: Adsorption

Data Source

PatentUS10016861B2Apparatus of aligning and assembling
Publication Date: 2018.07.10 BOE TECHNOLOGY GROUP CO LTD
  • US10016861B2 patent drawing
  • US10016861B2 patent drawing
  • US10016861B2 patent drawing

AI summary

An apparatus of aligning and assembling, comprising a rotatable platform, an adjustment platform and a turnover unit; wherein the rotatable platform is connected to the turnover unit, which is disposed at one side of the adjustment platform and configured to drive the rotatable platform to turn over to be positioned above the adjustment platform and be opposite to the adjustment platform; and the rotatable platform and the adjustment platform are provided with a first holding unit and a second holding unit, respectively, which are configured to hold objects to be aligned and assembled with each other, respectively.