Array Substrate Data Line Layout for Crosstalk Reduction
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Solution Overview
Problem
Liquid crystal display panels face issues with image flicker due to large voltage differences between pixel electrodes and adjacent data lines, causing crosstalk and changes in display brightness, which affect the overall display performance.
Innovation Solution
The array substrate design includes two data lines arranged on both sides of each column of pixels, with recessed portions between adjacent pixels, and a connecting wire to reduce coupling capacitance, along with a thin film transistor structure that overlaps data lines with the active layer to form source and drain electrodes, effectively reducing capacitance and crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If data lines are arranged adjacent to pixel electrodes for compact layout, then device integration is improved, but coupling capacitance between data lines and pixel electrodes increases causing crosstalk and image flicker
Solution Approach 1:
An insulating layer is introduced as an intermediary between the data line and pixel electrode. This insulating layer acts as a mediator that reduces the coupling capacitance between the conductive data line and the pixel electrode, thereby minimizing crosstalk and image flicker while maintaining the compact layout configuration.
Solution Approach 2:
The space between the data line and pixel electrode is segmented by introducing an insulating layer that creates distinct regions. This segmentation reduces the direct electromagnetic coupling between the data line and pixel electrode, effectively lowering the coupling capacitance and preventing crosstalk interference.
2Stability of the object's composition
If voltage difference between pixel electrodes and data lines is reduced to minimize crosstalk, then image stability is improved, but display brightness and contrast performance deteriorates
Solution Approach 1:
The insulating layer serves as a mediator that allows the maintenance of necessary voltage differences for display brightness and contrast while reducing the harmful coupling capacitance. It enables the system to operate with high voltage differences for performance while preventing crosstalk through its insulation properties.
Solution Approach 2:
The insulating layer is selectively applied in specific regions where data lines are adjacent to pixel electrodes, creating local electrical isolation. This allows voltage differences to be maintained in other critical regions for display performance while reducing crosstalk only in the problematic adjacent regions.
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 reduces crosstalk and image flicker by minimizing coupling capacitance between pixel electrodes and data lines, leading to improved display stability and brightness consistency.
Implementation Method 1
minimizing coupling capacitance between pixel electrodes and data lines
Data Source
AI summary
The embodiments of the present disclosure provide an array substrate, display panel and display apparatus. The array substrate comprises a plurality of gate lines extending in a row direction; a plurality of data lines extending in a column direction; and an array comprising a plurality of pixels. Each column of pixels of the plurality of pixels are coupled to two data lines of the plurality of data lines, the two data lines are configured to provide same data signal for displaying an image to the column of pixels, a first data line of the two data lines and a second data line of the two data lines are arranged at both sides of the column of pixels along the row direction, respectively. The array substrate, display panel and display apparatus according to the embodiments of the present disclosure can greatly reduce coupling capacitance between a pixel electrode and a data line, thereby an effect of reducing crosstalk can be achieved.