Display Substrate Layout for Narrow Frames and Stable Manufacturing
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Solution Overview
Problem
The complex layout structure of shift register units in display substrates leads to instability during manufacturing, hindering mass production and increasing the width of the display substrate, making it difficult to achieve a narrow frame design and increasing manufacturing costs.
Innovation Solution
The layout design of the display substrate is optimized by aligning the channel direction of transistors parallel to the clock signal line, reducing the width of the gate driving circuit, and incorporating a straight-line main body portion for the control terminal of the input control circuit, thereby stabilizing the substrate and reducing frame size and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the complex layout structure of shift register units is used, then the gate driving circuit can be integrated on the array substrate, but the width of the display substrate increases and manufacturing stability decreases
Solution Approach 1:
The patent repositions the gate driving circuit from the array substrate to the peripheral region, utilizing the side area of the substrate. This dimensional relocation allows the gate driving circuit to be integrated without increasing the active display area width, effectively resolving the contradiction between circuit integration and substrate width reduction.
2Adaptability or versatility
If the complex layout structure of shift register units is used, then the gate driving circuit can be integrated on the array substrate, but manufacturing stability decreases
Solution Approach 1:
The patent extracts the gate driving circuit from the complex array substrate environment and places it in the simpler peripheral region. This separation simplifies the overall layout structure, reduces manufacturing complexity, and improves manufacturing stability while maintaining the functionality of integrated gate driving.
3Ease of operation
If the gate driving circuit is integrated on the array substrate, then switching-state voltage signals can be provided to pixel units, but the frame size increases
Solution Approach 1:
The gate driving circuit is relocated to the peripheral region along the side of the substrate, utilizing the frame area efficiently. This positioning allows the circuit to provide switching signals to pixel units while minimizing the impact on the active display area, thereby reducing the overall frame size.
4Adaptability or versatility
If the complex layout structure is used, then the gate driving circuit functionality is achieved, but production costs increase
Solution Approach 1:
By extracting the gate driving circuit from the array substrate and placing it in the peripheral region, the patent simplifies the manufacturing process. This reduces production complexity and associated costs while maintaining full gate driving functionality, directly addressing the cost issue.
Data Source
AI summary
A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a gate driving circuit, power lines, a first signal line group, and a second signal line group. The gate driving circuit includes cascaded shift register units; the power lines are configured to provide power signals to the shift register units; the first signal line group includes at least one clock signal line, and the clock signal line is configured to provide a clock signal to the shift register units; the second signal line group includes a trigger signal line, and the trigger signal line is configured to provide a trigger signal to a first-stage shift register unit; and the gate driving circuit includes at least one transistor, and an extending direction of a channel of the transistor is parallel to an extending direction of the clock signal line.