Transparent Conductive Layer Protrusions for ADS Display Light Transmittance
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Solution Overview
Problem
The overall light transmittance of Advanced Super Dimension Switch (ADS) mode liquid crystal display panels is relatively low due to the design of electrodes, which results in uneven electric field distribution and reduced light transmission.
Innovation Solution
An array substrate with a first transparent conductive layer and a second transparent conductive layer, where the second layer has slit structures and the first layer has corresponding protrusions, with the height of the protrusions being smaller than the distance between the layers, enhancing the horizontal component of the electric field and increasing light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If slit electrodes are designed with plate-like electrodes to form multi-dimensional electric fields, then viewing angles and resolution are improved, but overall light transmittance decreases due to uneven electric field distribution
Solution Approach 1:
The patent applies local quality by creating protrusions at specific locations (corresponding to slit structures) on the first transparent conductive layer. These localized structural modifications concentrate the electric field in specific regions, generating a stronger horizontal component of the electric field precisely where needed to improve light transmittance, while maintaining the overall multi-dimensional electric field structure for wide viewing angles and high resolution.
Solution Approach 2:
The patent introduces a vertical dimension by creating protrusions that extend upward from the first transparent conductive layer. This three-dimensional structure modification changes the electric field distribution from a purely planar configuration to one with vertical components, thereby enhancing the horizontal electric field component through the protrusion geometry and improving overall light transmittance.
2Illumination intensity
If the horizontal component of the electric field is increased to improve light transmittance, then more light can pass through the panel, but the overall electric field distribution becomes uneven
Solution Approach 1:
The patent applies local quality by creating protrusions at specific locations (corresponding to slit structures) on the first transparent conductive layer. These localized structural modifications concentrate the electric field in specific regions, generating a stronger horizontal component of the electric field precisely where needed to improve light transmittance, while maintaining the overall multi-dimensional electric field structure for wide viewing angles and high resolution.
Solution Approach 2:
The patent introduces a vertical dimension by creating protrusions that extend upward from the first transparent conductive layer. This three-dimensional structure modification changes the electric field distribution from a purely planar configuration to one with vertical components, thereby enhancing the horizontal electric field component through the protrusion geometry and improving overall light 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 solution significantly increases the horizontal component of the electric field, leading to improved light transmittance and reduced power consumption while maintaining high resolution and wide viewing angles.
Implementation Method 1
a multi-dimensional electric field is formed with an electric field produced at edges of slit electrodes on a same plane and an electric field produced between a layer of the slit electrodes and a layer of a plate-like electrode
Data Source
AI summary
The embodiments of the present invention disclose an array substrate and a display device. The array substrate comprises a substrate and a first transparent conductive layer, an insulating layer and a second transparent conductive layer sequentially formed on the substrate, wherein the second transparent conductive layer has a plurality of slit structures, the first transparent conductive layer has a plurality of protrusions corresponding to the plurality of slit structures, and a height of the plurality of protrusions is smaller than a distance between the first transparent conductive layer and the second transparent conductive layer.