Display Substrate Shift Register Topology for Narrow Frame Layout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panel designs face challenges in efficient space utilization and signal interference due to complex transistor arrangements, which hinder narrow frame designs and affect display quality.
Innovation Solution
A display substrate with a shift register unit featuring a specific arrangement of transistors and connections, including a first clock signal line extending along a first direction, input and output circuits, and noise reduction transistors, optimized for reduced space congestion and signal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shift register unit and clock signal line are integrated on the same substrate using conventional layout methods, then the driving function for gate lines is achieved, but space congestion and increased complexity occur
Solution Approach 1:
The patent applies dimensionality change by orienting the active layer of the input transistor perpendicular to the extension direction of the clock signal line. Specifically, the active layer extends in a second direction while the clock signal line extends in a first direction, creating a vertical arrangement that reduces horizontal space occupation and minimizes interference between signal lines.
2Ease of operation
If conventional integration methods are used for shift register units, then circuit functionality is achieved, but space occupancy increases hindering narrow frame design
Solution Approach 1:
The patent repositions the active layer to extend perpendicular to the clock signal line direction, transforming the layout from a horizontal arrangement to a vertical one. This dimensional change reduces the horizontal footprint of the shift register unit, enabling narrower frame designs while preserving all circuit functions.
Solution Approach 2:
The patent applies local quality by making the active layer strip-shaped with specific orientation properties. The active layer extends in a second direction perpendicular to the first direction of the clock signal line, creating a localized structural optimization that reduces space occupancy in critical areas while maintaining electrical functionality.
Data Source
AI summary
A display substrate is provided. The display substrate includes a base substrate, and a shift register unit and a first clock signal line that are on the base substrate, the first clock signal line extends along a first direction on the base substrate and is configured to provide a first clock signal to the shift register unit, the shift register unit includes an input circuit, an output circuit, a first control circuit and an output control circuit, and the input circuit includes an input transistor, an active layer of the input transistor is in a strip shape extending along a second direction, and the second direction is different from the first direction.