Array Substrate Multi-Domain Display Pixel Control
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Solution Overview
Problem
Traditional single-domain liquid crystal displays suffer from low contrast ratio, asymmetry of viewing angles, and color shift when viewed from different angles, and existing multi-domain display methods are complex, difficult to manufacture, and costly.
Innovation Solution
An array substrate design with pixels arranged in a matrix, featuring data lines on either side of columns and gate lines between rows, allowing two adjacent pixels to connect through switching elements to different data lines, enabling controlled voltage for different liquid crystal molecule rotation angles, thus achieving a multi-domain display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional single-domain liquid crystal display is used, then the manufacturing process is simple, but the contrast ratio is low and viewing angles are asymmetric
Solution Approach 1:
The patent divides each pixel into multiple sub-regions (first subregion and second subregion) with different liquid crystal molecule orientations. This segmentation allows different viewing angle domains within a single pixel, improving contrast ratio and viewing angle symmetry while maintaining a relatively simple manufacturing process using standard TFT fabrication techniques
Solution Approach 2:
The patent creates different local orientations of liquid crystal molecules in different subregions of pixels through specific electrode configurations and rubbing alignment patterns. This local quality variation enables multi-domain display characteristics within each pixel, improving overall display performance without requiring complex manufacturing processes
2Manufacturing precision
If multi-domain display is implemented by dividing pixels into subpixels with different rubbing alignment, then viewing angles improve, but the manufacturing process becomes complicated and costly
Solution Approach 1:
The patent uses a unified pixel electrode structure that serves multiple functions: it creates both the first and second subregions with different orientations, maintains voltage control, and integrates with standard TFT switching elements. This multi-functional design achieves multi-domain display without requiring separate manufacturing processes for different subpixels, reducing complexity and cost
Solution Approach 2:
The patent introduces a new dimension of control by using gate lines positioned between pixel rows to independently control adjacent pixels. This dimensional addition enables sophisticated voltage patterns that create different liquid crystal orientations without adding physical structural complexity, achieving multi-domain effects through electrical control rather than mechanical subdivision
3Manufacturing precision
If multi-domain display is achieved by forming protrusions to create oblique electric fields, then liquid crystal alignment improves, but manufacturing difficulty increases significantly
Solution Approach 1:
The patent extracts the alignment control function from physical protrusions and transfers it to electrical field control through gate lines. Instead of forming complex protrusion structures, the invention uses voltage applied through gate lines to create the necessary electric field patterns, significantly simplifying the manufacturing process while maintaining precise liquid crystal alignment
Solution Approach 2:
The patent replaces the mechanical approach of forming physical protrusions with an electrical approach using gate lines and voltage control. This substitution eliminates the need for complex lithography and etching steps required to create protrusions, reducing manufacturing difficulty while achieving the same liquid crystal alignment effect through electric field manipulation
4Manufacturing precision
If complex multi-domain pixel electrodes are constructed, then display performance improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the functions of multiple pixel electrodes into a single unified pixel electrode structure. By combining the control of first and second subregions into one electrode controlled by gate lines, the invention reduces device complexity and manufacturing cost while maintaining multi-domain display performance through coordinated voltage application
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 design simplifies the manufacturing process and effectively reduces color shift and increases viewing angles by allowing independent control of liquid crystal molecule orientations, achieving a multi-domain display with improved contrast ratio.
Implementation Method 1
enabling controlled voltage for different liquid crystal molecule rotation angles
Implementation Method 2
allowing two adjacent pixels to connect through switching elements to different data lines, enabling controlled voltage
Data Source
AI summary
The present disclosure provides an array substrate, a driving method thereof and a display panel. The array substrate includes: a plurality of pixels arranged in a matrix, wherein two adjacent rows of pixels are grouped into a pixel group; switching elements respectively connected with the pixels; a data line, wherein two data lines corresponds to each column of pixels arranged at two sides of this column respectively; and gate lines each located between two adjacent rows of pixels of each pixel group; wherein respective pixels in a same pixel group are connected with one gate line located between two rows of pixels though respective switching elements; two pixels adjacent to each other along a column direction in a same pixel group are respectively connected with two data lines respectively located at two sides of a column where the two pixels are located through respective switching elements.