Pixel Electrode Design for Faster Liquid Crystal Response
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Solution Overview
Problem
As display panel sizes increase, the electric field force between peripheral and pixel electrodes weakens, leading to slower liquid crystal molecule tilting and longer response times, particularly evident in larger displays like 55-inch, 65-inch, and 75-inch panels with increased pixel size, resulting in decreased liquid crystal molecules affected by the electric field.
Innovation Solution
A pixel electrode design featuring a sub-pixel region with a first and second sub-pixel region arranged at intervals, forming a receiving chamber between them, with the main pixel region positioned within this chamber, creating a voltage difference between the main and sub-pixel regions to enhance electric field influence on liquid crystal molecules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If display panel size increases, then display area is improved, but response time increases
Solution Approach 1:
The pixel electrode is divided into a main pixel region and multiple sub-pixel regions (first and second sub-pixel regions). This segmentation creates multiple electric field sources that can act on liquid crystal molecules simultaneously, compensating for the weakened electric field effect in larger display panels and reducing response time while maintaining large display area.
Solution Approach 2:
Different regions of the pixel electrode are designed with different functions: the main pixel region provides the primary electric field, while the sub-pixel regions positioned at corners provide additional localized electric fields. This local quality differentiation ensures that liquid crystal molecules throughout the display, especially in the middle region, receive sufficient electric field influence to maintain fast response times across the entire large display area.
2Measurement precision
If pixel size increases, then display resolution is improved, but electric field force on liquid crystal molecules decreases
Solution Approach 1:
By segmenting the pixel electrode into main and sub-pixel regions, the invention creates multiple electric field sources within each pixel. This allows the electric field force to be distributed and reinforced across different locations, ensuring that even as pixel size increases for higher resolution, the electric field force acting on liquid crystal molecules remains sufficient for fast response.
Solution Approach 2:
The sub-pixel regions are positioned at corner areas of the main pixel region, creating an asymmetric distribution of electric field sources. This asymmetric placement optimizes the electric field coverage across the pixel area, ensuring that liquid crystal molecules throughout the pixel, including those in the middle region, receive adequate electric field force despite increased pixel size.
3Speed
If sub-pixel region is added, then tilting speed of liquid crystal molecules is improved, but device complexity increases
Solution Approach 1:
The sub-pixel regions are integrated with the main pixel region as part of a unified pixel electrode structure on the lower substrate. This merging approach allows the multiple electric field sources to work together synergistically to accelerate liquid crystal tilting, while avoiding the complexity of separate independent components. The combined structure simplifies manufacturing compared to adding separate devices or complex control systems.
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 design accelerates the tilting speed of liquid crystal molecules, shortens response time, and improves viewing angles by ensuring liquid crystal molecules are affected by multiple electric fields, thereby enhancing display efficiency and reducing dark streaks.
Implementation Method 1
there is a voltage difference between the main pixel region and the sub-pixel region so that the liquid crystal molecules in the middle region are not only affected by the electric field between the common voltage of the upper substrate and the pixel electrode, but also by the electric field between the main pixel region and the sub-pixel region
Data Source
AI summary
A pixel electrode and a display panel are provided. The pixel electrode includes a sub-pixel region and a main pixel region arranged at intervals. The sub-pixel region includes a first sub-pixel region and a second sub-pixel region, wherein a receiving chamber is formed between the first sub-pixel region and the second sub-pixel region, and the main pixel region is disposed in the receiving chamber.