Display Panel Signal Line Layout for Narrower Gate Driver Borders
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Solution Overview
Problem
The existing display devices face low yield due to the placement of light-emitting units on the gate driving circuit, which becomes impractical as resolution increases, leading to complex processes and larger borders.
Innovation Solution
The display panel design includes a non-display area with a gate driving circuit area where reset and low-potential signal lines are insulated from the gate driving circuit, with at least part of these lines being disposed in different layers or areas to reduce border width and manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the light-emitting unit is arranged on the gate driving circuit to compress the pixel unit, then the border width is reduced, but the manufacturing yield decreases due to complex processes and multiple line changes
Solution Approach 1:
The patent moves the gate driving circuit from the display area to the non-display area, utilizing the peripheral region of the substrate. This spatial reorganization allows the light-emitting unit to remain in the display area without being compressed, while the gate driving circuit occupies the non-display area, thereby maintaining border width reduction without compromising manufacturing yield.
Solution Approach 2:
The patent divides the substrate into distinct functional areas: a display area for pixel units and a non-display area for the gate driving circuit. This segmentation separates the light-emitting functions from the driving circuit functions, eliminating the need for multiple line changes and complex processes, thus improving manufacturing yield while achieving narrow borders.
2Manufacturing precision
If the pixel unit is compressed to increase resolution, then the display area utilization improves, but the border remains large due to insufficient pixel compression
Solution Approach 1:
The patent relocates the gate driving circuit to the non-display area, freeing up display area space. This allows pixel units to be arranged more densely without being constrained by the gate driving circuit layout, enabling higher resolution while simultaneously reducing the border width through optimized space utilization.
3Manufacturing precision
If multiple line changes are implemented to control the light-emitting unit, then the control precision improves, but the process complexity increases
Solution Approach 1:
The patent extracts the gate driving circuit from the display area and places it in the non-display area. This separation eliminates the need for multiple line changes within the display area, simplifying the manufacturing process while maintaining precise control over the light-emitting units through the relocated gate driving circuit.
4Use of energy by moving object
If LTPO technology is used to reduce power consumption, then the energy efficiency improves, but the manufacturing difficulty increases and yield decreases
Solution Approach 1:
The patent relocates the gate driving circuit to the non-display area, which simplifies the overall manufacturing process. This separation allows LTPO technology to be implemented more easily without the complications of integrating low-temperature polysilicon circuits within the display area, thereby reducing manufacturing difficulty and improving yield while maintaining power consumption benefits.
Data Source
AI summary
The present application provides a display panel and a display device. In the display panel, by disposing at least a part of at least one of the reset signal line and the low-potential signal line in the gate driving circuit area, an area of at least the part of the gate driving circuit area occupied by the reset signal line and the low-potential signal line can be reduced, so that a width of a border required for the part is reduced, thereby reducing the border of the display panel.