Liquid Crystal Display Panel Support Column with Molecular Sieve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high viscosity of polyimide (PI) solution leads to incomplete filling of via holes in liquid crystal display panels, causing internal ions from the color resist layer to enter the liquid crystal layer, resulting in uneven display brightness.
Innovation Solution
Incorporating a molecular sieve, such as hydrated aluminosilicate, into the material for the support column positioned near the via holes to adsorb and neutralize ions from the color resist layer, preventing their entry into the liquid crystal layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If PI solution is used to coat the array substrate and color filter substrate, then alignment of liquid crystal is facilitated, but the high viscosity of PI solution causes incomplete filling of via holes, leading to thin or absent PI layer in via holes and ion contamination
Solution Approach 1:
The patent introduces a molecular sieve layer as an intermediary substance between the PI solution and the via holes. This molecular sieve layer acts as a mediator that selectively adsorbs ions from the color resist layer, preventing them from contaminating the liquid crystal layer while allowing the PI solution to properly fill the via holes and form uniform PI layers.
Solution Approach 2:
The patent utilizes molecular sieve, a porous material with specific pore structures, to create a functional layer that can selectively adsorb ions. The porous structure of the molecular sieve allows it to trap ions within its pores, preventing their migration into the liquid crystal layer while maintaining the integrity of the PI layer formation process.
2Reliability
If via holes are provided in conductive electrode for contact with color resist layer, then electrical connection is achieved, but ions from color resist layer enter liquid crystal layer causing voltage change and uneven display brightness
Solution Approach 1:
The patent converts the harmful presence of via holes that allow ion contamination into a beneficial structure by introducing molecular sieve layers within the via holes. The molecular sieve selectively adsorbs ions, transforming the via holes from ion contamination pathways into ion-trapping structures that protect the liquid crystal layer while maintaining electrical connectivity.
Solution Approach 2:
The molecular sieve layer serves as an intermediary barrier within the via holes, positioned between the color resist layer and the liquid crystal layer. This intermediary structure allows electrical connection to be maintained through the via holes while blocking the harmful migration of ions into the liquid crystal layer.
3Stability of the object's composition
If PI solution viscosity is high for proper coating, then alignment function is maintained, but diffusion into via holes is incomplete resulting in thin PI layer
Solution Approach 1:
The patent applies local quality modification by introducing molecular sieve layers specifically at the via hole regions where PI solution infiltration is problematic. This localized intervention allows the PI solution to properly fill the via holes and form adequate PI layers in these critical areas without requiring changes to the overall viscosity of the PI solution, thus maintaining the alignment function while improving layer thickness uniformity.
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 effectively stabilizes the voltage across the liquid crystal layer, eliminating uneven brightness issues and improving display quality by preventing ion interference.
Implementation Method 1
a material of the support column comprises a molecular sieve, and the molecular sieve comprises hydrated aluminosilicate
Data Source
AI summary
A liquid crystal display panel is provided. The liquid crystal display panel includes a first substrate disposed opposite to a second substrate. A color resist layer is disposed between the first substrate and the second substrate. A conductive electrode is disposed on the color resist layer. A via hole penetrating the conductive electrode and in contact with the color resist layer is formed on the conductive electrode. A support column is disposed at a position corresponding to the via hole, and a material for preparing the support column includes a molecular sieve.