Liquid Crystal Metering Tray with Rotating Alignment

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Solution Overview

Problem

The manufacturing of liquid crystal panels faces challenges in accurately measuring the amount of instilled liquid crystals, as existing methods are inefficient and prone to errors, leading to issues like blackspots and light leakage in display images due to inaccuracies in liquid crystal quantity.

Innovation Solution

An equipment and method involving a tray with circular holes, a pair of scales, and a driving device that rotates and moves the tray to align measuring cups with stationary scales, allowing for efficient and accurate weight measurement of liquid crystals, with optional vibration compensation to stabilize the scales during measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the scales are moved up and down to align with measuring cups, then measurement coverage is improved, but measurement stability deteriorates due to delayed stabilization

Engineering Contradiction:
Improvemeasurement coverageVSAvoidmeasurement stability
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

Instead of moving the scales up and down to align with measuring cups, the patent inverts the approach by keeping the scales stationary and moving the tray with measuring cups to align with the scales. This inversion resolves the contradiction by eliminating the movement-induced instability of the scales while maintaining the ability to measure multiple cups sequentially.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent segments the measurement system into a stationary scales component and a movable tray component. By dividing the system this way, the scales remain fixed and stable for accurate measurement, while the tray handles the movement and positioning of multiple measuring cups, thus resolving the conflict between coverage and stability.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the scales are moved frequently to measure different cups, then measurement efficiency is improved, but device lifespan deteriorates

Engineering Contradiction:
Improvemeasurement efficiencyVSAvoidscales service life
Core Design Contradiction:
ProductivityVSDuration of action of stationary object

Solution Approach 1:

The patent applies inversion by making the scales stationary and the tray movable. This allows efficient measurement of multiple cups by moving only the tray, thereby preserving the scales and extending their service life while maintaining high measurement efficiency.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The tray is designed to be self-sufficient in handling movement and positioning of multiple measuring cups. By making the tray the active component that serves itself in moving cups to the scales, the scales are freed from movement tasks, reducing wear and extending their lifespan while maintaining measurement efficiency.

Inventive Principle:
Principle #25Self-service

3Productivity

If the tray moves rapidly to improve measurement speed, then productivity is improved, but measurement accuracy deteriorates due to vibration

Engineering Contradiction:
Improvemeasurement speedVSAvoidmeasurement accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent extracts the movement function from the scales and assigns it to the tray. This separation allows the tray to move rapidly for high productivity while the scales remain stationary and undisturbed, ensuring measurement accuracy is not compromised by vibration from rapid movement.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This solution improves measurement efficiency and accuracy, extends the lifespan of the scales, and ensures precise liquid crystal quantity, preventing display quality issues by stabilizing the scales and reducing vibration effects.

Implementation Method 1

a pair of scales arranged below the circle of the holes

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentUS9897478B2Equipment and method for metering instilled liquid crystals
Publication Date: 2018.02.20 BOE TECHNOLOGY GROUP CO LTD
  • US9897478B2 patent drawing
  • US9897478B2 patent drawing
  • US9897478B2 patent drawing

AI summary

The present disclosure provides an equipment and method for measuring weight of instilled liquid crystals, so as to improve the measurement accuracy and the measurement efficiency of the equipment for measuring weight of instilled liquid crystals. The equipment includes a tray having a plurality of holes arranged in a circle and a measuring cup arranged within each hole, a pair of scales arranged below the circle of the holes, and a driving device connected to the tray in a driving manner and configured to drive the tray to move up and down and drive the tray that has moved to a high position to rotate to a position where one measuring cup to be measured is in alignment with the pair of scales.