V-Shaped Pixel Electrodes for LCD Viewing Angle and Short Circuit Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional liquid crystal display devices face challenges in achieving high definition and wide viewing angles while preventing short circuits and alignment disorders, especially when using lateral or oblique electric fields with closely arranged counter electrodes.
Innovation Solution
A liquid crystal display device structure incorporating a cylindrical lens array and V-shaped or crooked pixel electrodes with specific alignment angles between the pixel and counter electrodes, utilizing a lateral or oblique electric field to rotate liquid crystal molecules and form four domains for improved viewing angles and high definition display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If counter electrodes are closely arranged to achieve high definition, then display resolution is improved, but short circuits and alignment disorders occur
Solution Approach 1:
The invention introduces a new spatial dimension by arranging pixel electrodes and counter electrodes in alternating patterns along the same straight line. This one-dimensional alternating arrangement creates distinct separated regions for different electrode types, allowing high definition display with closely arranged electrodes while preventing short circuits through clear spatial separation.
Solution Approach 2:
The invention segments the electrode arrangement into distinct alternating regions along a straight line, separating pixel electrodes and counter electrodes into different zones. This segmentation creates clear boundaries between electrode types, enabling high resolution while preventing electrical short circuits through spatial isolation.
2Adaptability or versatility
If lateral or oblique electric field is used for switching, then wide viewing angles are achieved, but alignment disorders occur
Solution Approach 1:
The invention applies local quality by creating different electric field conditions in different spatial regions. The alternating arrangement of electrodes generates localized electric field patterns that uniformly align liquid crystal molecules in each region while maintaining wide viewing angles through the overall lateral field configuration.
Solution Approach 2:
The invention changes the electric field parameter distribution by using alternating electrode arrangements, which creates a more uniform electric field pattern compared to conventional single-sided electrode configurations. This parameter change stabilizes liquid crystal alignment while preserving wide viewing angle characteristics.
3Measurement precision
If small pixel sizes are used for high definition, then display resolution is improved, but short circuits between closely arranged electrodes occur
Solution Approach 1:
The invention resolves the short circuit risk in small pixels by transitioning to a one-dimensional alternating electrode arrangement along straight lines. This dimensional organization creates sufficient electrical isolation between pixel electrodes and counter electrodes even when pixels are small and densely packed, enabling high resolution without short circuits.
4Ease of manufacture
If conventional electrode arrangements are used, then manufacturing is simplified, but moiré effects and non-uniform light transmission occur
Solution Approach 1:
The invention uses asymmetric alternating arrangements of pixel and counter electrodes along straight lines, creating a pattern that eliminates moiré effects while maintaining manufacturing feasibility. The asymmetric separation of electrode types prevents interference patterns and ensures uniform light transmission across the display.
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
The solution enables wide viewing angles, suppresses gradation reversal, and maintains high definition even with small pixel sizes, preventing short circuits and alignment disorders, while allowing for uniform light transmission and reduced moiré effects.
Implementation Method 1
a lens array unit including a cylindrical lens array constituted by a plurality of cylindrical lenses
Implementation Method 2
performs switching of liquid crystal molecules using the lateral electric filed substantially parallel with a principal surface of the array substrate
Implementation Method 3
switching of liquid crystal molecules using the lateral electric filed
Data Source
AI summary
In one embodiment, a liquid crystal display device includes a lens array unit having a cylindrical lens array constituted by a plurality of cylindrical lenses each having a lens surface and a generatrix corresponding to the lens surface. The lens surface is arranged in a line in a direction orthogonally crossing the generatrix. A first substrate is arranged at a back side of the lens array unit and includes a pixel electrode in a belt shape extending in a different direction from the direction in which the generatrix extends. The pixel electrode is formed in a V character shape. A second substrate is arranged between the lens array unit and the first substrate including a counter electrode in a belt shape commonly arranged on the pixel electrodes extending in a parallel direction to the pixel electrode.