Spacer Strips Enhance Horizontal Electric Field in Array Substrates
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Solution Overview
Problem
Conventional TFT-LCD technologies face challenges in achieving high light transmittance due to the relative weakness of the horizontal electric field and strength of the longitudinal electric field in the middle areas of pixel and common electrodes, which affects the overall transmittance of the liquid crystal panel.
Innovation Solution
The introduction of spacer strips on the array substrate, which protrude the pixel and common electrodes, enhances the horizontal electric field while suppressing the longitudinal electric field, thereby improving transmittance. These spacer strips can be of various shapes such as straight line, fold line, wave, or saw tooth, and are arranged in specific configurations to optimize the electric field distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional TFT-LCD structure is used, then the basic display function is achieved, but the light transmittance is insufficient due to weak horizontal electric field and strong longitudinal electric field
Solution Approach 1:
The patent introduces spacer strips that protrude from the array substrate in the vertical dimension, creating a three-dimensional structure. This dimensional change allows the pixel electrode and common electrode to extend vertically, enhancing the horizontal electric field between them while suppressing the longitudinal electric field, thereby improving light transmittance without compromising display function
Solution Approach 2:
The spacer strips are strategically positioned at specific locations on the array substrate, creating localized protrusions that concentrate and enhance the horizontal electric field in key areas. This local structural modification optimizes the electric field distribution precisely where needed, improving overall light transmittance while maintaining the basic display functionality
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 enhanced horizontal electric field and reduced longitudinal electric field result in improved light transmittance and increased storage capacitance, addressing the limitations of conventional TFT-LCD technologies.
Implementation Method 1
the horizontal electric field is enhance, the longitudinal electric field is suppressed, and thus the transmittance can be improved
Implementation Method 2
controlling deflection of the liquid crystal molecules, and then by the filter effect of the color filter substrate, a colorful image display can be achieved
Data Source
AI summary
An array substrate, a display panel and a display device are provided. The array substrate includes a base substrate and a plurality of sub pixels arranged on the base substrate, wherein each of the sub pixels includes a first electrode, a second electrode and a plurality of spacer strips, and the plurality of spacer strips is provided below the first electrode and the second electrode. By forming spacer strips which make a pixel electrode and a common electrode protruded on the array substrate, the horizontal electric field is enhance, the longitudinal electric field is suppressed, and thus the transmittance can be improved.