Array Substrate with Multi-Domain Slit Structures for Display Contrast
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Solution Overview
Problem
Conventional liquid crystal display devices suffer from poor picture contrast and light leakage in dark states due to their structural characteristics, leading to unsatisfactory viewing experiences, especially when displaying large-sized images where side viewing reveals noticeable stripes.
Innovation Solution
An array substrate with a first transparent electrode layer featuring multiple domains and slit structures, where different domains have slit structures extending in different directions, and a dimming region defined by crossing gate and data lines, along with a second transparent electrode layer to form a multi-dimensional electric field for improved liquid crystal molecule deflection and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional liquid crystal display devices are used, then manufacturing cost and power consumption are controlled, but picture contrast is poor and light leakage occurs in dark states
Solution Approach 1:
The array substrate is divided into multiple domains (first domain, second domain, third domain, fourth domain) with different slit structure orientations. Each domain independently controls light transmission in specific directions, segmenting the overall light control function to achieve better contrast and eliminate light leakage while maintaining manufacturing feasibility.
Solution Approach 2:
Different regions (domains) of the array substrate are assigned different slit structure characteristics (orientation angles of 0°, 45°, 90°, 135° respectively). This local differentiation allows each domain to optimize light control for its specific viewing angle, improving overall picture contrast and eliminating light leakage in dark states.
2Illumination intensity
If array substrate with multiple domains and slit structures is implemented, then picture contrast and viewing experience are improved, but device complexity increases
Solution Approach 1:
The array substrate is segmented into four domains with systematically arranged slit structures. While this increases functional complexity for improved contrast, the segmentation follows a regular pattern (0°, 45°, 90°, 135° orientations) that simplifies manufacturing processes and maintains structural manageability.
Solution Approach 2:
The patent introduces asymmetric slit structure orientations in different domains rather than using uniform structures. This asymmetric design enables directional light control for superior contrast, while the systematic arrangement of asymmetric elements keeps the overall device complexity manageable through standardized manufacturing approaches.
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 enhances picture contrast and reduces unsatisfactory stripes, providing a better viewing experience by optimizing the array substrate design to control backlight direction and intensity, achieving uniform color mixing and improved transmittance.
Implementation Method 1
a first transparent electrode layer with a plurality of slit structures... and a second transparent electrode layer to form a multi-dimensional electric field for improved liquid crystal molecule deflection
Implementation Method 2
multi-dimensional electric field for improved liquid crystal molecule deflection and transmittance
Implementation Method 3
slit structures located in a same type of domain extend in a same direction, and slit structures located in different types of domains extend in different directions... controlling the direction and intensity of backlight
Data Source
AI summary
The present disclosure provides an array substrate, a dimming liquid crystal panel and a display panel. The array substrate includes: a first transparent electrode layer with a plurality of slit structures, wherein the first transparent electrode layer comprises a plurality of domains, the plurality of domains comprise at least two types of domains, each of the plurality of domains is adjacent to different types of domains along both a row direction and a column direction; and a plurality of gate lines extending along the row direction and a plurality of data lines extending along the column direction, the plurality of gate lines and the plurality of data lines crossing to define a plurality of dimming regions arranged in an array.