Irregular Display Panel Notch Edge Wiring Design
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Solution Overview
Problem
Conventional irregularly-shaped display panels with slots have wider borders, reducing the screen ratio and hindering the achievement of a full-screen display effect due to the structural design requirements for mounting components like cameras and sensors.
Innovation Solution
The display panel features an irregularly-shaped edge with recessed sub-edges and winding data lines in a film layer different from the remaining portions, reducing the border width by overlapping wiring portions and strategically placing the gate driving circuit to prevent short-circuits, allowing for a more compact design that accommodates electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a slot is provided in the irregularly-shaped display panel to mount camera and sensor, then components can be integrated, but the border width at the slot becomes wider which reduces screen ratio
Solution Approach 1:
The data lines are routed through multiple film layers (first, second, and third metal layers) to pass through the first sub-area where the gate driving circuit is located. This multi-dimensional wiring approach allows the data lines to traverse the non-display area more efficiently, reducing the border width while maintaining component integration capability.
Solution Approach 2:
The irregularly-shaped edge is divided into multiple sub-edges (first sub-edge, second sub-edge, third sub-edge) that are recessed at different positions and angles. This segmentation of the edge structure allows for optimized border width at different locations, particularly narrowing the border at critical areas while maintaining space for component mounting.
2Area of stationary object
If the border width is reduced to increase screen ratio, then full-screen display effect is achieved, but space for mounting camera and sensor becomes insufficient
Solution Approach 1:
The data lines utilize multiple film layers to route through the gate driving circuit area, effectively using the Z-dimension (vertical stacking) to bypass the border region. This allows the border width to be minimized in the planar view while still providing adequate space for component mounting through the multi-layer structure.
Solution Approach 2:
The first sub-area containing the gate driving circuit is positioned within the non-display area, and the data lines are nested through multiple metal layers within this sub-area. This nested arrangement allows compact integration of components while maintaining a narrow border width in the overall display structure.
3Ease of manufacture
If winding portions of data lines are placed in the same film layer, then manufacturing is simpler, but short-circuit risk increases between data lines and gate lines
Solution Approach 1:
The winding portions of the data lines are distributed across multiple film layers (first, second, and third metal layers) rather than being confined to a single layer. This vertical separation in the Z-dimension effectively prevents short-circuits between data lines and gate lines while maintaining manufacturing feasibility through standard multi-layer PCB techniques.
Data Source
AI summary
Display panel and display device are provided. An exemplary display panel includes a display area and a non-display area surrounding the display area. The display area includes a plurality of gate lines, a plurality of data lines, and an irregularly-shaped edge. The non-display area includes a first non-display area adjacent to the irregularly-shaped edge. The first non-display area includes a first sub-area adjacent to the sub-edge. The plurality of data lines includes a plurality of irregularly-shaped data lines. The plurality of irregularly-shaped data lines includes a plurality of winding portions in the first sub-area which includes at least one first winding portion, and the at least one first winding portion has at least a wiring portion in a film layer different than a remaining portion of the plurality of winding portions.