Interline Electrode Horizontal Field Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In multiplex-matrix electro-optical apparatuses, display irregularities occur due to differences in voltage polarity applied to adjacent rows of pixels, causing non-uniform horizontal electric fields and resulting in visual defects.
Innovation Solution
The apparatus includes substrates with scanning lines, data lines, and pixel electrodes, where interline electrode portions are formed between pixel electrodes connected to different scanning lines, generating horizontal electric fields between signal electrodes and pixel electrodes, thereby suppressing electric field generation between pixels with opposite polarities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple matrix technology is used to increase duty ratio, then productivity is improved, but display uniformity deteriorates due to display irregularities
Solution Approach 1:
A non-line-of-sight electrode is introduced as an intermediary element between pixel electrodes of opposite polarity. This electrode generates horizontal electric fields that counteract the unwanted electric fields at pixel interfaces, thereby suppressing display irregularities while maintaining the multiple matrix configuration for high productivity
Solution Approach 2:
The non-line-of-sight electrode is strategically positioned only at specific locations where pixel electrodes of opposite polarity interface with each other. This localized approach addresses display uniformity issues at critical interfaces without affecting the overall multiple matrix structure, ensuring uniformity where needed while maintaining productivity elsewhere
2Reliability
If AC driving is applied to suppress liquid crystal deterioration, then reliability is improved, but display uniformity deteriorates due to horizontal electric fields between adjacent pixels
Solution Approach 1:
The non-line-of-sight electrode serves as a mediator that introduces controlled horizontal electric fields to counterbalance the unwanted fields generated by AC driving between adjacent pixels of opposite polarity. This eliminates display irregularities while preserving the benefits of AC driving for liquid crystal reliability
Solution Approach 2:
The non-line-of-sight electrode is configured to create equipotential regions that reduce potential differences between adjacent pixels of opposite polarity. This minimizes the generation of harmful horizontal electric fields at pixel interfaces, thereby maintaining display uniformity during AC driving operations
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 reduces display irregularities by ensuring consistent grayscale across pixels, even when voltages of opposite polarities are applied, improving visual quality.
Implementation Method 1
generating horizontal electric fields between signal electrodes and pixel electrodes, thereby suppressing electric field generation between pixels with opposite polarities
Data Source
AI summary
An electro-optical apparatus includes a first and second data lines that intersect with scanning lines. A first and second pixel electrodes are positioned at opposite sides of the corresponding scanning line. A first signal electrode is formed on the electrode forming surface at a position adjacent to the first pixel electrode and is connected to the first data line. A second signal electrode is formed on the electrode forming surface at a position adjacent to the second pixel electrode and is connected to the second data line. The second signal electrode includes an interline electrode portion formed in a gap between the second pixel electrode and the first pixel electrode positioned at the second side with respect to the second pixel electrode.