Pixel Electrode Slits for Wide Viewing Angle MVA Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
MVA liquid crystal displays face issues with color washout due to alignment domains, which when increased to improve wide viewing angle, result in reduced transmittance and display quality.
Innovation Solution
A pixel structure with a specific electrode layer configuration on both substrates, including strip-shaped electrodes and slits, controls liquid crystal molecule arrangement to achieve wide viewing angles while maintaining high transmittance and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of alignment domains is increased to achieve wide viewing angle, then the viewing angle is improved, but the transmittance is reduced and display quality deteriorates
Solution Approach 1:
The electrode structure is segmented into multiple strip-shaped electrodes with slits, creating distinct alignment domains. Each strip-shaped electrode region defines a specific liquid crystal alignment direction, enabling multiple viewing domains (e.g., four domains) within a single pixel. This segmentation allows the display to achieve wide viewing angles through multi-domain configuration while controlling the total electrode area to maintain high transmittance.
2Manufacturing precision
If the electrode layer area is increased to improve alignment control, then the alignment precision is improved, but the transmittance is reduced
Solution Approach 1:
The electrode structure employs local quality variation through strip-shaped electrodes with specific geometries and slits. The strip-shaped electrodes are positioned at specific locations (e.g., corners or edges of the pixel) to locally control liquid crystal alignment in critical regions. The slits within the strip-shaped electrodes create localized alignment domains without requiring large electrode areas, thus achieving precise alignment control while maintaining high overall transmittance.
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 electrode layer configuration effectively enhances transmittance and display quality by controlling liquid crystal molecule alignment, achieving wide viewing angles without compromising on color accuracy.
Implementation Method 1
a first electrode layer, disposed on a first substrate of the display panel and including a first plate-shaped electrode and first strip-shaped electrodes... a second electrode layer, disposed on a second substrate opposite to the first substrate and including a second plate-shaped electrode and second strip-shaped electrodes
Data Source
AI summary
A pixel structure, a display panel and a display device are provided. The pixel structure includes a first electrode layer and a second electrode layer. The first electrode layer includes a first plate-shaped electrode and first strip-shaped electrodes; the first strip-shaped electrodes include at least two first strip-shaped structures, and each adjacent two of the first strip-shaped structures have a first slit formed therebetween; the second electrode layer includes a second plate-shaped electrode and second strip-shaped electrodes, wherein the second strip-shaped electrodes include at least two second strip-shaped structures, and each adjacent two of the second strip-shaped structures have a second slit formed therebetween.