Gate Driving Circuit Layout for Compact Display Frame Area
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Solution Overview
Problem
Conventional display devices have a significant portion of their frame area occupied by gate driving circuits, which affects the appearance and functionality of the device.
Innovation Solution
The gate driving circuits are integrated between the pixel units within the display region, reducing the frame area by overlapping connection lines with data lines and extending in a direction that minimizes the occupied space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gate driving circuits are disposed outside the display region in the frame area, then the circuits are easily布局和manufactured, but the frame area is significantly increased affecting the appearance
Solution Approach 1:
The gate driving circuits are moved from the traditional frame area (2D plane outside display region) into the display region, utilizing the vertical dimension and space between pixel rows. This dimensional repositioning allows circuits to occupy previously unused space within the display area, reducing frame area while maintaining manufacturability.
Solution Approach 2:
The gate driving circuits are nested between the pixel units in the display region, specifically positioned between adjacent rows of pixel units. This nesting approach allows the circuits to be embedded within the existing pixel structure, effectively utilizing the space between pixel rows without requiring additional frame area.
2Area of stationary object
If gate driving circuits are disposed between pixel units in the display region, then the frame area is reduced, but the circuit layout complexity increases
Solution Approach 1:
The gate driving circuits are divided into multiple segments, with at least two gate driving circuits positioned between two adjacent rows of pixel units. This segmentation allows the circuits to be distributed across different regions between pixel rows, simplifying the overall layout by breaking down the complex circuit into manageable sections that can be independently routed.
Solution Approach 2:
The connection lines are designed to serve multiple functions: they connect gate driving circuits to scan lines while also overlapping with data lines to reduce the number of separate conductors needed. This multi-functionality simplifies the layout by combining multiple routing functions into single structural elements.
3Device complexity
If connection lines overlap with data lines, then the number of connection lines can be reduced, but the risk of signal interference increases
Solution Approach 1:
An insulating layer is introduced as an intermediary between the connection lines and data lines that overlap each other. This insulating layer acts as a mediator that prevents direct electrical interaction between the two conductors, eliminating signal interference while allowing the lines to share the same physical space for routing efficiency.
Data Source
AI summary
A display device includes a plurality of scan lines, a plurality of data lines, a plurality of pixel units, a plurality of gate driving circuits, and a plurality of connection lines. The scan lines extend in a first direction. The data lines extend in a second direction. The gate driving circuits extend in the first direction, and each of the gate driving circuits crosses through at least two of the pixel units. At least two gate driving circuits are included between two adjacent rows of the pixel units. The connection lines extend in the second direction and are electrically connected to the gate driving circuits. At least part of the connection lines overlap the data lines. The connection lines include a plurality of output lines and a plurality of signal lines. The output lines are electrically connected to the scan lines.