Slit Electrode Design for Display Brightness Uniformity
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Solution Overview
Problem
Existing ADS mode display technologies suffer from non-uniform brightness and significant color shift when viewed from different angles due to horizontal arrangement of liquid crystal molecules, leading to deteriorated display quality and image performance.
Innovation Solution
A slit electrode design featuring alternating groups of slits arranged in different directions, which alters the orientation of liquid crystal molecules to improve brightness uniformity and reduce color shift, achieved by arranging pixel or common electrodes as slit electrodes with specific slit configurations and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If liquid crystal molecules are arranged horizontally to achieve wide visual angle, then visual angle is improved, but brightness uniformity deteriorates and color shift increases
Solution Approach 1:
The common electrode is segmented into multiple slit electrodes arranged in different directions. Instead of a single continuous electrode, the electrode is divided into multiple directional slits that work together to create more uniform electric field distribution across different viewing angles, thereby improving brightness uniformity while maintaining wide visual angle.
Solution Approach 2:
Different regions of the electrode structure are given different orientations. The slit electrodes are arranged in multiple directions (e.g., first direction and second direction) to create locally optimized electric fields for different viewing zones, ensuring uniform brightness performance across the entire display panel when viewed from various angles.
2Adaptability or versatility
If liquid crystal molecules are arranged horizontally to achieve wide visual angle, then visual angle is improved, but color shift deteriorates
Solution Approach 1:
The common electrode is segmented into multiple slit electrodes arranged in different directions. Instead of a single continuous electrode, the electrode is divided into multiple directional slits that work together to create more uniform electric field distribution across different viewing angles, thereby improving brightness uniformity while maintaining wide visual angle.
Solution Approach 2:
Different regions of the electrode structure are given different orientations. The slit electrodes are arranged in multiple directions (e.g., first direction and second direction) to create locally optimized electric fields for different viewing zones, ensuring uniform brightness performance across the entire display panel when viewed from various angles.
3Stability of the object's composition
If dual-domain pixel structure with mirror-symmetrical common electrodes is used, then symmetry at particular angle is improved, but visual angle uniformity deteriorates
Solution Approach 1:
The invention moves away from mirror-symmetrical electrode arrangements to asymmetric multi-directional slit electrode configurations. By arranging slit electrodes in different directions rather than using symmetric mirror-image patterns, the structure achieves more uniform electric field distribution across all viewing angles, eliminating the directional bias inherent in symmetric designs.
Solution Approach 2:
The electrode structure transitions from two-dimensional planar symmetry to three-dimensional multi-directional arrangement. Slit electrodes are oriented in multiple directions (first direction, second direction, etc.) to create electric fields that uniformly control liquid crystal molecules across various viewing angles, adding dimensional complexity to achieve better angular performance.
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 slit electrode design ensures uniform image brightness and reduced color shift across various viewing angles, enhancing overall image quality and display performance by adjusting the orientation of liquid crystal molecules under electrical fields.
Implementation Method 1
a multidimensional electrical field is formed by an electrical field generated by an edge of slit electrodes and an electrical field generated between slit electrode layers
Implementation Method 2
all the orientations of liquid crystal molecules located between the slit electrodes and over the electrodes in a liquid crystal layer can be rotated
Data Source
AI summary
A slit electrode, an array substrate and a display device are provided to improve the brightness uniformity of the display image and reduce the color shift, thereby improving the image quality. The slit electrode comprises at least one slit electrode unit including a plurality of first groups of slits arranged in a first direction and a plurality of second groups of slits arranged in a second direction, wherein each of the first groups of slits include at least one first slit arranged in the first direction, and each of the second groups of slits include at least one second slit arranged in the second direction, and wherein the first and the second groups of slits are arranged alternately.