Array Substrate Storage Electrode Segmentation for Signal Uniformity
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Solution Overview
Problem
The driving capability of storage electrode signals in liquid crystal displays is compromised due to coupling capacitance and increasing resistance in long storage electrode lines, leading to poor signal uniformity and display quality, especially in larger displays.
Innovation Solution
The array substrate design includes multiple storage electrode lines with at least two signal input terminals at each end and auxiliary storage electrode lines connected to nodes on the main lines, allowing for enhanced signal input and improved signal uniformity across the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If storage electrode lines are made longer to cover larger display areas, then the display size is increased, but the resistance increases and driving capability deteriorates
Solution Approach 1:
The storage electrode line is divided into multiple segments by setting multiple signal input terminals along its length. Each segment receives drive signals from the nearest input terminal, reducing the effective resistance and capacitance each terminal must drive. This segmentation allows large displays to maintain good driving capability throughout the entire display area.
2Area of stationary object
If storage electrode lines are made longer, then the display area is increased, but signal uniformity deteriorates
Solution Approach 1:
Multiple signal input terminals are distributed along the storage electrode line to divide it into multiple segments. Each segment receives drive signals from the closest input terminal, ensuring that signal strength and uniformity are maintained across the entire display area regardless of the overall display size.
3Device complexity
If gate lines or data lines form coupling capacitance with storage electrode lines, then the display structure is complete, but the driving capability of storage electrode signals deteriorates
Solution Approach 1:
The storage electrode line is segmented into multiple sections with separate signal input terminals. Each segment has reduced coupling capacitance effect from gate and data lines, allowing each segment to be driven effectively without the cumulative capacitance burden affecting the entire line.
Solution Approach 2:
The multiple signal input terminals act as intermediaries that provide localized drive signals to different segments of the storage electrode line. This reduces the impact of coupling capacitance from gate and data lines by providing fresh signal sources at multiple points along the line.
Data Source
AI summary
Provided are an array substrate and driving method thereof, and a display apparatus. The array substrate comprises multiple storage electrode lines (1) each of which comprises at least two storage electrode signal input terminals (11). The array substrate can improve the driving capability of the storage electrode signals on the storage electrode lines (1).