Array Substrate Data Line Reduction for Display Uniformity
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Solution Overview
Problem
Conventional display technologies require a large number of data lines and data driving chips, leading to increased manufacturing costs and energy consumption, while also facing challenges in uniform data signal transmission and image brightness.
Innovation Solution
The array substrate design reduces the number of data lines by arranging sub-pixels in a matrix of m×2n, with each row connected to two gate lines and each column connected to a single data line, simplifying fabrication and reducing energy consumption by alternating data line polarity reversal frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional display technologies use a large number of data lines and data driving chips, then data signal transmission can be achieved, but manufacturing costs and energy consumption increase
Solution Approach 1:
The patent merges the data line functions by allowing 2n sub-pixels to share a single data line through alternating polarity reversal, reducing the number of data lines from 2n to n, thereby reducing energy consumption and manufacturing complexity while maintaining reliable data signal transmission
Solution Approach 2:
The patent implements periodic polarity reversal of data signals at different frequencies for different sub-pixel groups (2n sub-pixels use frequency f, n sub-pixels use frequency 2f), enabling time-division multiplexing that reduces the number of required data lines and driving chips while maintaining signal transmission reliability
2Reliability
If conventional display technologies use a large number of data lines and data driving chips, then data signal transmission can be achieved, but manufacturing costs increase
Solution Approach 1:
The patent merges multiple data line functions into fewer lines by implementing time-division multiplexing with alternating polarity reversal, reducing the number of data driving chips from 2n to n, which directly reduces manufacturing cost while maintaining data signal transmission capability
Solution Approach 2:
By using periodic polarity reversal at different frequencies for different sub-pixel groups, the patent enables a single data line to serve multiple sub-pixels sequentially, reducing the number of data driving chips required and thereby reducing manufacturing cost
3Reliability
If data lines are arranged in conventional configurations, then sub-pixels can be connected, but data signal transmission uniformity and image brightness are compromised
Solution Approach 1:
The patent implements periodic polarity reversal at different frequencies for different sub-pixel groups (2n sub-pixels use frequency f, n sub-pixels use frequency 2f), which equalizes the data signal transmission paths and improves image brightness uniformity by compensating for path differences through temporal multiplexing
Solution Approach 2:
The patent changes the frequency parameter of data signal transmission differently for different sub-pixel groups, using frequency f for 2n sub-pixels and frequency 2f for n sub-pixels, which equalizes transmission characteristics and improves image brightness uniformity
Data Source
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AI summary
An array substrate includes a base substrate; a plurality of gate lines extending in a row direction on the base substrate; a plurality of data lines extending in a column direction intersecting the row direction on the base substrate; and a plurality of pixel groups in rows and columns, each including two sub-pixels side by side in the row direction. Each of the rows of pixel groups is connected to two respective ones of the gate lines, and the two sub-pixels of each pixel group in the row of pixel groups are respectively connected to different ones of the two respective gate lines. The data lines and the columns of pixel groups are alternately arranged in the row direction, and the two sub-pixels of each of the plurality of pixel groups are connected to a corresponding one of the plurality of data lines directly adjacent to the pixel group.