Display Panel Layout With Overlapping Emitters Around a Notch
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Solution Overview
Problem
The existence of a notch area in display panels for accommodating front-facing cameras and receivers leads to signal interference due to the coupling effect between scanning lines and data lines that need to be wound around the notch area.
Innovation Solution
A display panel design that includes a display area, a winding area, and a notch area, where light-emitting devices with orthographic projections overlapping the winding area are electrically connected to pixel driving circuits through conducting lines, reducing signal interference by minimizing the coupling effect between scanning and data lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If scanning lines and data lines are wound around the notch area, then the notch area can accommodate front-facing cameras and receivers, but signal interference occurs due to coupling effect between the lines
Solution Approach 1:
The display panel is divided into distinct functional areas: a display area for light-emitting devices, a winding area for pixel driving circuits, and a notch area for front-facing components. This spatial segmentation allows scanning lines and data lines to be routed through the winding area without interfering with the notch area functionality, thereby eliminating signal interference while preserving adaptability.
Solution Approach 2:
The winding area acts as an intermediary zone between the display area and the notch area. By placing pixel driving circuits and routing conducting lines through this intermediate region, the design enables signal transmission without direct coupling between scanning and data lines in the notch area, thus reducing signal interference while maintaining notch functionality.
2Area of stationary object
If light-emitting devices are placed in the display area with orthographic projections overlapping the winding area, then the display area utilization is improved, but the device complexity increases due to extended conducting lines
Solution Approach 1:
The patent utilizes the vertical dimension (z-axis) by allowing light-emitting devices to extend above the base substrate, with their orthographic projections overlapping the winding area. This three-dimensional arrangement enables better display area utilization without requiring additional conducting lines, as the vertical stacking reduces the need for complex lateral routing.
Solution Approach 2:
The design merges the display area and winding area in the vertical dimension, allowing light-emitting devices to be positioned such that their projections overlap with the winding area. This merging reduces the need for separate conducting line routes, simplifying the overall conducting line configuration while maximizing display area utilization.
3Reliability
If conducting lines extend from the display area to the winding area to connect light-emitting devices, then electrical connection is achieved, but the coupling effect between scanning and data lines increases
Solution Approach 1:
The patent applies different functional qualities to different regions: the display area contains light-emitting devices with specific electrical characteristics, while the winding area contains pixel driving circuits with different electrical characteristics. By localizing the functions and using targeted conducting lines that extend only where necessary, the design achieves reliable electrical connection while minimizing the overall coupling effect between scanning and data lines.
Solution Approach 2:
The design extracts the pixel driving circuits into a separate winding area, distinct from the display area. This extraction allows conducting lines to be routed separately for different functions, reducing the coupling effect between scanning and data lines while maintaining necessary electrical connections to light-emitting devices in the display area.
Data Source
AI summary
Some embodiments of the disclosure provide a display panel and a display device. The display panel includes: a display area; a winding area surrounded by the display area; a notch area surrounded by the winding area; a plurality of pixel driving circuits located in the display area; a plurality of light-emitting devices located at sides, facing away from a base substrate, of the pixel driving circuits, each pixel driving circuit being electrically connected to one corresponding light-emitting device; an orthographic projection of at least one of the plurality of light-emitting devices on the base substrate overlaps with the winding area, other light-emitting devices are in the display area; each light-emitting device whose orthographic projection on the base substrate overlaps with the winding area is electrically connected to corresponding pixel driving circuit through a first conducting line, and the first conducting line extends from the display area to the winding area.