LCD Pixel Electrode Sub Cutting Patterns for Transmittance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal display devices face issues with deteriorated transmittance due to disrupted electric fields caused by the arrangement of cutting patterns or protrusions on pixel and common electrodes, leading to irregular alignment of liquid crystal molecules and reduced light transmission.
Innovation Solution
The implementation of a liquid crystal display device with a pixel electrode and common electrode featuring sub domains and sub cutting patterns that extend from a boundary region, allowing for controlled liquid crystal director alignment and improved electric field management, thereby enhancing transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cutting patterns or protrusions are provided on pixel electrode and common electrode to adjust liquid crystal alignment, then viewing angle is enhanced, but electric fields disrupt each other causing deteriorated transmittance
Solution Approach 1:
The pixel electrode and common electrode are divided into multiple regions through cutting patterns, creating distinct domains with different liquid crystal alignment directions. This segmentation allows each region to independently control light transmission while collectively achieving wide viewing angle coverage without electric field disruption
Solution Approach 2:
Different regions of the electrode are designed with locally optimized cutting patterns that create specific liquid crystal alignment characteristics suited for their position. This local quality approach ensures that each domain contributes optimally to both viewing angle and transmittance based on its specific location and function
2Adaptability or versatility
If cutting patterns are arranged to control liquid crystal alignment, then liquid crystal molecules can be aligned in different directions for wider viewing angles, but disrupted electric fields cause irregular alignment and reduced light transmission
Solution Approach 1:
The cutting patterns extend in multiple directions (first direction and second direction perpendicular to the first) to create two-dimensional domain structures. This dimensional approach allows liquid crystal molecules to be aligned in multiple directions simultaneously, achieving wide viewing angle adaptability while maintaining regular alignment patterns that ensure consistent light transmission
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 configuration improves transmittance by minimizing disclination regions and optimizing liquid crystal alignment, resulting in better visibility and display quality, particularly at wider viewing angles.
Implementation Method 1
a pixel electrode connected to the gate line and the data line and including a pixel electrode cutting pattern; a second substrate arranged opposite to the first substrate and including a common electrode having a common electrode cutting pattern
Implementation Method 2
The pixel electrode includes a first region and a second region separated from each other at a boundary region and extending in different directions, and at least one of the pixel electrode and the common electrode includes a sub cutting pattern extending from the boundary region towards at least one of the first region and the second region
Data Source
AI summary
A liquid crystal display device includes a first substrate having a gate line and two data lines crossing with the gate line to define a pixel, a first pixel electrode connected to the gate line and the first data line, and a second pixel electrode connected to the gate line and the second data line. A second substrate opposes the first substrate and includes a common electrode having a common electrode cutting pattern. The pixel electrode includes a pixel electrode cutting pattern to form domains and sub domains in the pixel with the common electrode cutting pattern. A liquid crystal layer is arranged between the first and second substrates. The pixel electrodes include bent portions. The pixel electrode and the common electrode include sub cutting patterns extending towards the sub domains at the bent portions.