Liquid Crystal Display Panel Accommodating Space Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During the manufacturing of liquid crystal display panels, defects such as luminance nonuniformity and low-temperature bubbles occur due to excessive or insufficient liquid crystal in the display region, affecting display quality.
Innovation Solution
A liquid crystal display panel design that includes an accommodating space between the sealant and the edge of the effective display region, allowing for adjustment of liquid crystal amounts by releasing or flowing liquid crystal between the effective display region and the accommodating space, and preventing impurities from entering the display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid crystal is filled in the display region, then the display function is achieved, but defects such as luminance nonuniformity and bubbles occur due to excessive or insufficient liquid crystal
Solution Approach 1:
The patent divides the liquid crystal containment space into two distinct regions: a sealed display region and an accommodating space that is not fully sealed. This segmentation allows the liquid crystal to be distributed between a controlled display area and an adjustable reservoir, enabling precise control of the liquid crystal amount in the display region while preventing defects caused by overfilling or underfilling.
Solution Approach 2:
The accommodating space acts as an intermediary between the liquid crystal injection process and the sealed display region. It serves as a buffer zone that can absorb excess liquid crystal or supplement insufficient liquid crystal before it enters the display region, thereby mediating the liquid crystal amount to achieve optimal display quality without manufacturing defects.
2Strength
If sealant is applied to bond substrates, then substrate bonding is achieved, but impurities in the sealant may enter the display region and contaminate the liquid crystal
Solution Approach 1:
The patent segments the sealing structure into two functional zones: a first sealant layer that provides strong substrate bonding, and a second sealant layer with different properties that prevents impurity migration. This segmentation allows the bonding function and contamination prevention function to be independently optimized, ensuring both strong adhesion and liquid crystal purity.
Solution Approach 2:
The second sealant layer with higher viscosity acts as an intermediary barrier between the impurity-containing first sealant layer and the liquid crystal. It prevents impurities from migrating into the liquid crystal while maintaining the structural integrity of the seal, thus protecting the liquid crystal from contamination during the bonding process.
3Stability of the object's composition
If liquid crystal amount is fixed after sealant curing, then cell structure is stable, but display quality deteriorates when liquid crystal amount is not optimal
Solution Approach 1:
The patent introduces dynamics into the previously static liquid crystal containment system by creating an accommodating space that can dynamically adjust the liquid crystal amount. The partition wall with controlled permeability allows liquid crystal to move between the display region and accommodating space in response to pressure differences, enabling the system to self-regulate and maintain optimal liquid crystal levels while preserving overall structural stability.
Solution Approach 2:
The patent changes the physical parameters of the sealant layers, specifically the viscosity of the second sealant layer being higher than the first, to control impurity migration. Additionally, the partition wall's controlled permeability parameter allows selective fluid passage, enabling the system to maintain structural stability while permitting liquid crystal amount adjustment for optimal display quality.
Data Source
AI summary
A liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel comprises a color filter substrate and an array substrate which are assembled together with a sealant, and an accommodating space for accommodating liquid crystal is formed between the sealant and an edge of an effective display region that is formed between the color filter substrate and the array substrate.