Staggered Multi-Layer Transparent Electrodes for ADS Array Substrates
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Solution Overview
Problem
Existing array substrates for advanced super dimension switch (ADS) technology have limited electric fields in pixel regions due to restricted areas of common and pixel electrodes, resulting in limited rotation angles of liquid crystal molecules and disappointing display effects.
Innovation Solution
The array substrate design includes a substrate with pixel units featuring a TFT, a first transparent electrode with strip electrodes, and a second transparent electrode with distinct electrode portions, where the electrodes are arranged in a staggered manner across different layers, allowing for increased electric fields through additional electric field generation between the transparent electrode and the pixel electrode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the areas of common electrode and pixel electrode are limited, then the device complexity is reduced, but the electric field strength in pixel region is weakened
Solution Approach 1:
The patent introduces a second transparent electrode layer with electrode portions arranged on different layers than the first transparent electrode. This multi-layer configuration creates additional electric field paths in the vertical dimension, thereby enhancing the overall electric field strength in the pixel region without increasing the planar area of individual electrodes.
2Reliability
If the electric field in pixel region is increased through multi-layer electrode configuration, then the display effect is improved, but the device complexity increases
Solution Approach 1:
The second transparent electrode serves multiple functions: it generates additional electric fields between its electrode portions and the first transparent electrode, and it can be electrically connected to the common electrode to provide common voltage signals. This multi-functionality enhances display performance while managing structural complexity.
3Force
If additional transparent electrodes and electrode portions are added, then the electric field generation is enhanced, but the manufacturing process complexity increases
Solution Approach 1:
The patent combines the common electrode function with the second transparent electrode by electrically connecting the electrode portions to the common electrode. This merging of functions reduces the total number of separate electrode components needed, thereby simplifying the manufacturing process while maintaining enhanced electric field generation capability.
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 enhances the electric field in the pixel region, improving the display effect by allowing greater rotation of liquid crystal molecules and enhancing display quality metrics such as resolution, transmittance, and viewing angle.
Implementation Method 1
forming a multi-dimensional electric field by an electric field generated between edges of slot electrode in a same plane and an electric field generated between a slot electrode layer and a strip electrode layer
Data Source
AI summary
The present disclosure provides an array substrate including a substrate, a plurality of pixel units arranged on the substrate. Each pixel unit includes a TFT, a first transparent electrode and a second transparent electrode which are insulated from each other, the first transparent electrode includes a plurality of strip electrodes, the second transparent electrode includes a first electrode portion and a second electrode portion, the second electrode portion electrically connects to the first electrode portion, the first electrode portion includes a plurality of strip electrodes, the strip electrodes of the first electrode portion and the strip electrodes of the first transparent electrode are arranged in a staggered manner, the second electrode portion is arranged on a layer different from that of the first transparent electrode and the first electrode portion.