Array Substrate Data Line Sharing for Narrow Border Displays
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Solution Overview
Problem
Existing display technologies face challenges in achieving a narrow-border design due to the complexity and space requirements of gate drive circuits and data lines in array substrates, which hinder the integration of gate drivers directly on the array substrate.
Innovation Solution
The array substrate incorporates a configuration where each data line is connected to a target column of drive transistors, allowing other columns to receive data signals through connections with transistors in different rows, reducing the number of data lines and wiring space needed, and incorporates a gate drive circuit on one side of the substrate to minimize border width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each data line is connected to every column of drive transistors, then each transistor receives data signals reliably, but the number of data lines and wiring space increases significantly
Solution Approach 1:
Each data line is configured to provide data signals to multiple columns of drive transistors through shared connections. The data lines serve multiple functions by connecting to different columns sequentially or simultaneously, reducing the total number of data lines required while ensuring each transistor receives the necessary data signals for operation
Solution Approach 2:
The patent implements dynamic scanning control where data lines are activated in different time periods to serve different columns. By controlling the timing and sequence of data line activation, the system dynamically assigns data lines to different columns, reducing the need for permanent dedicated connections while maintaining reliable signal transmission to all transistors
2Length of moving object
If gate drive circuits are integrated on the array substrate, then border width is reduced, but the complexity of the array substrate increases
Solution Approach 1:
The gate drive circuit is divided into multiple independent driving circuits, each responsible for controlling a specific row of drive transistors. This segmentation allows each circuit module to be simpler and more manageable, while collectively they provide complete gate drive functionality across the entire display panel
Solution Approach 2:
The gate drive circuits are integrated directly onto the array substrate, merging the gate driving functionality with the display pixel array. This integration eliminates the need for separate gate drive chips and reduces the border width, while the modular segmented design keeps the complexity manageable
3Area of stationary object
If the number of data lines is reduced, then wiring space is minimized, but the capability to provide data signals to all drive transistors is compromised
Solution Approach 1:
Data lines are activated in periodic time slots to serve different columns of drive transistors. Each data line is selectively enabled during specific time periods to provide data signals to different columns, creating a time-multiplexed data signal distribution system that maintains full coverage with fewer physical data lines
Data Source
AI summary
The present disclosure provides an array substrate and a method of driving the same, and a display device. The array substrate includes a plurality of sets of transistors, each set of transistors include at least two columns of drive transistors. A target column of drive transistors of each set of transistors are connected to a data line, and the rest drive transistors are connected to the target column of drive transistors.